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SIMATIC C7-623, C7-624 Control Systems Volume 1

1. 7 300 7 300 PG A C7 OP25 jf l l RS 485 E pa tt m repeater amme ame Fe LL k k k ee f ie max 2 1000m 1 12 Ze E max 50m or e 6 7 300 7 300 OP 25 i l OP 25 4 il RS 485 TE es eed TE N i repeater PA 4 max 50m Terminating resistance switched on PG connected for maintenance purposes via spur line 0 x MPI addresses of the nodes Figure 3 7 Cable Length in an MPI Network C7 623 C7 624 Control Systems C79000 G7076 C623 01 3 9 Configuring an MPI Network 3 4 Network Components Purpose PROFIBUS Bus Cable Characteristics of the PROFIBUS Bus Cable 3 10 You require network components Table 3 2 Network Components Purpose for building a network for connecting a node to the net work for amplifying the signal for linking segments for converting the signal to fiber optic transmission PROFIBUS DP network only for connecting programming de vices OPs to the network Components PROFIBUS bus cable Bus connector RS 485 repeater Optical Link Module Programming device cables spur lines We offer the following PROFIBU
2. AO Log DAU C7 CPU ic RL AO M A 407 Uiso L M O Ground bus Figure 6 5 Connecting Loads to a Current Output of an Isolated Analog Output Module Connecting Loads Connection of loads to a voltage output is only possible in 2 wire circuits as to a Voltage there is only one output Output C7 623 C7 624 Control Systems 6 8 C79000 G7076 C623 01 C7 Analog Input Output 2 Wire Connection 2 wire connection of loads to a voltage output is carried out at terminal Qy and the reference point of the measuring circuit Mana Figure 6 6 shows the principle of connecting loads to a voltage output of a non isolated analog output module with 2 wire connection AO U Log DAU C7 CPU ic RL AO M A oS m L Uiso MTO Ground bus Figure 6 6 2 Wire Connection of Loads to a Voltage Output of an Analog Output Module C7 623 C7 624 Control Systems C79000 G7076 C623 01 6 9 C7 Analog Input Output 6 4 Analog Input Function This Section This section contains e The characteristics of the analog input module e The technical specifications of the analog input module You will learn e How to start up the analog input module e The measuring ranges provided by the analog input modu
3. 0c cece eee eee eee 2 3 Installing a C7 ira jas ais dae vei atkins oe a iaia ender gant 2 4 Arranging the C7 in the Mechanical Environment 2 5 Electrical Installation 00 cece cette eee 2 10 2 6 Setup Guidelines for Interference Proof Installation 2 16 2 7 Connecting Shielded Cables 0 000 cece cece eee ee 2 18 2 8 Keying Connectors 00 ccc teens 2 19 2 9 Arrangement of Additional S7 300 Modules 000 eee ee 2 20 2 10 CT CIOCKS si ccc chia tated daia Aan Eda keto nnulessnalevnnnolcae baie te 2 22 2 11 Starting Up a GZ sosia siia nena ey ween eee eke eee eee oe 2 24 2 12 Status and Fault LEDs on the C7 0 cece eee eee 3 Configuring an MPI Network 0 0ceee seen eee eee eee eens 3 1 Communication Over the MPI 060 e eee eee eee eee eee Special Features of CPs and FMS 0 0 c cece eee cence 3 2 Rules for Configuring an MPI Network 0 22000eeeeeee eee 3 3 Cable Lengths 0 c cece cece teeta 3 4 Network Components 60 0 c cece eee tee teens 3 5 BUS COnn6ctors sesuai 086 es creme steer enews A eben a AE GOE wad E 3 5 1 Bus Connectors 6ES7 972 0B 20 OXA0 20 c cece eee 3 5 2 Bus Connectors 6ES7 972 0B 10 OXA0 0 cece eee 3 5 3 Plugging the Bus Connector into the Module 00005 3 18 4 Connecting a Programming Device PC toaC7 0
4. o o 3 Terminal con nection diagram ala o o o o ae o o o o aa o o o Parts shaded in this way are not relevant for the explanation Pin desig Figure 6 11 Pinout Diagram of the Analog Output Function Block Diagram Figure 6 12 shows the block diagram of the analog output module You will ind detailed technical specifications of the analog output module on the fol lowing pages C7 623 C7 624 Control Systems C79000 G7076 C623 01 6 17 C7 Analog Input Output Galvanic isolation Dau Z i AA1 Block diagram Figure 6 12 Block Diagram of the Analog Output Function Technical Specifications Specific Data of the Analog Output Interference Suppression Error Limits Number of outputs 1 Measuring tolerance 1 of end value Cable length shielded 200 m Basic error limit operational Voltages Currents Potentials HILAL 29 Carrer ed tOOUE put range Galvanic isolation Yes e Voltage 1 Insulation resistance 500 VDC e Current 1 Measurement ranges V A at different pins gt Output ripple referred to out 0 05 no coding pin put range Voltage 10V a g C rient 20mA 4 20mA Status Interrupts Diagnostics Int t Analog Value Generation aaa NE e Diagnostics interrupt Yes parameterizable Resolution including over range Diagnostics functions Yes par
5. 6 10 Analog inputs outputs Analog output function Technical specifications Terminal connection diagram Analog signal Cable for AUX digital inputs 2 12 B Backup batter Change Disposal 8 4 Storage Transport and storage conditions A 7 BAF Battery fault Baud rate B 2 Bus cable C7 623 C7 624 Control Systems C79000 G7076 C623 01 Bus connector Installing PROFIBUS bus cable mount bus cable 3 13 Purpose Remove Set terminating resistance Terminating resistance B 5 to module Bus connectors Cc C7 Installation Performance range C7 Accessories C7 CPU Glossary 2 Cable for analog signal for analog signals Cable length Maximum of an MPI network CE marking A 5 Clearing C7 CPU 2 24 Clock C7 CPU Master OP section Communication CPU CPU Communications processors Components for MPI network 3 5 3 10 Configuration Memory Connect PG PC for service purposes Index 1 Index Connectors Counter input Universal inputs CPU CPU communication Current measurement Current transducer Connectable components for C7 D DI DO 24VDC power supply 2 13 DI DO status display Exit 5 9 Select Digital input Universal inputs eae function Technical specifications 5 4 Digital inputs 2 10 Digital output function Special features Digital outputs F Fixing bracket before
6. By pressing Fg or F4 e C7 624 By pressing oe The following data are supplied DI 11101110 10101010 DO 11101110 10101010 0 1 0 1 Figure 5 3 DI DO Status Display on a C7 623 Table 5 1 Explanation of the DI DO Display in Figure 5 3 Position Explanation Signal status of the DI DO e 1 DIDO set e 0 DI DO reset Pin no from to C7 623 C7 624 Control Systems 5 8 C79000 G7076 C623 01 C7 Digital Input Output Note Since the display is based on a polling read access status changes within an interval lt 400 ms cannot be detected However modifications of the cyclic 400 ms grid may result in an unstable display Exiting the DI DO Exit the DI DO display by pressing ESC Display the System Function Menu C7 623 C7 624 Control Systems C79000 G7076 C623 01 and then press again to exit 5 9 C7 623 C7 624 Control Systems C79000 G7076 C623 01 C7 Analog Input Output This Chapter Section Contents Page 6 1 Analog Technology 6 2 6 2 Connecting Transducers to Analog Inputs 6 3 6 2 1 Connecting Voltage and Current Sensors 6 6 6 3 Connecting Loads Actuators to the Analog Output 6 7 6 4 Analog Input Function 6 10 6 4 1 Characteristics and Technical Specifications of the 6 11 Analog Input Module 6 5 Analog Output Function 6 16 C7 623 C7 624 Control Systems C79000 G
7. Ladder Logic for Module specifica S7 300 and S7 400 tions ProTool Lite System and Standard Functions STEP 7 User Manual Identical functionality in connection with C7 C7 623 C7 624 Control Systems IV C79000 G7076 C623 01 Preface Table 1 1 STEP 7 Documentation Package Order Number 6ES7810 4AA00 8AA0 Manual Standard Software for S7 and M7 STEP 7 User Manual Statement List for S7 300 S7 400 Programming Manual or Ladder Logic for S7 300 S7 400 Programming Manual System Software for S7 300 S7 400 System and Standard Functions Reference Manual Standard Software for S7 Converting STEP 5 Programs Manual Master Index Contents Provides information for working with the STEP 7 tools Installation and startup of STEP 7 on PC programming device Handling tools with the following contents Managing projects and files Configuring and parameterizing the 7 300 Assigning symbolic names for the user program Creating and testing the user program in STL LAD Creating data blocks Configuring communications between several CPUs Loading storing and deleting the user program in the CPU programming device Monitoring and forcing the user program for example variables Monitoring and forcing the CPU for example operating mode memory reset memory compress protection levels Reference manual for programming with STL or LAD Basics
8. The bus connector of this node Startup or must possess a heavy gauge threaded joint for this purpose see also Section Maintenance Figure 4 3 shows two networked C7s to which a programming device PC is connected Programming device PC cable spur line ooo ars ooo Tim 255 i LE h 20000 aja OA OOOOOOHH lt 00 a a OOOO0000 ovo Programming Device PC O00 Tim 0000 ogo OOO OAO OOOOOOOo dob OOO000000 ovo C7 PROFIBUS bus cable Figure 4 3 Connecting a Programming Device PC to an MPI Network C7 623 C7 624 Control Systems C79000 G7076 C623 01 4 5 C7 623 C7 624 Control Systems C79000 G7076 C623 01 C7 Digital Input Output This Chapter Digital Input Function Digital Output Function Status and Fault Displays of the DI DO C7 623 C7 624 Control Systems C79000 G7076 C623 01 5 1 C7 Digital Input Output 5 1 Digital Input Function Introduction The C7 has different digital inputs for connecting sensors Digital Input This chapter presents the technical specifications of the C7 s digital inputs Function In addition to the technical specifications of the digital inputs this chapter also describes e The characteristics e The special features e The terminal connection and block diagrams of the digital inputs Characteristics T
9. 01 2 21 Installing and Preparing the C7 2 10 C7 Clocks Overview Clock in the C7 CPU Setting the C7 CPU Clock Master Clock Setting and Reading the Clock in the Control Section Clock at Power Off Clock in C7 OP Section Setting the MMI Clock Setting and Reading the Clock in the C7 OP Section 2 22 The C7 systems have two clocks e One clock in the C7 CPU e One clock in the C7 OP section The clock in the C7 CPU is an integral real time clock hardware clock This clock is independent of the clock of the MMI section of the C7 OP The clock is supplied with the following value set DT 1994 01 01 00 00 00 As an integrated clock the C7 CPU clock can also function as the master clock within the C7 I O configuration see also Section 3 4 6 in Volume 2 You can set and read the clock in the following ways e With the programming device PG using the STEP 7 tool S7 Info or e In the user program with SFCO SET_CLK With SFC1 READ_CLK you can read the current time of day see the reference manual 235 There are two situations influencing the clock response to POWER OFF e Ifthe C7 has a backup battery the clocks of the C7 continue to run at POWER OFF e Ifthe C7 has no battery backup clocks of the C7 continue at POWER ON with the time shown at POWER OFF Since the C7 is not backed up the clock will also not continue after POWER OFF The clock in the C7 OP section is indepe
10. C7 623 C7 623 C7 624 Control Systems 1 2 C79000 G7076 C623 01 Product Overview C7 624 The character height on the display can be changed per software to 4 x 20 characters at a character height of 8 mm or 8 x 40 characters at a character height of 4 5 mm see Figure 1 2 Figure 1 2 C7 624 Performance With the C7 systems you can Range Run user programs that have been programmed in STL or LAD and loaded into the C7 CPU Process digital and analog signals using the C7 s integral I O Use interrupt inputs and counters for purposes including frequency me tering period duration measurement Load and use MMI applications that you have created using the ProToo or ProTool Lite configuring tool Use these configurations to monitor and intervene in the process you are controlling with the user program Output data to a printer C7 Units The C7 has two units that work independently of each other and can commu nicate with each other over the internally looped C7 multipoint interface MPI C7 CPU C7 OP These parts will be referred to explicitly in the manuals where required C7 623 C7 624 Control Systems C79000 G7076 C623 01 Product Overview Connectable In addition to the connections to the process you can also connect different Components components to the C7 The most important components and their functions of a C7 are listed in Table 1 1 Table 1 1 Connectable Compone
11. One channel current measurement Reference potentialO O Figure 6 9 Connection of a Channel for Current Measurement C7 623 C7 624 Control Systems C79000 G7076 C623 01 6 13 C7 Analog Input Output Block Diagram Figure 6 10 shows the block diagram of the analog input module The input resistances are 140 Q 125 mW The next page contains detailed technical specifications of the analog input module e 1 1 1 AEI BE oN AE4 rea es Galvanic isolation N Logic Internal sup ply Figure 6 10 Block Diagram of the Analog Input Module Technical Specifications Number of inputs Cable length shielded Voltages Currents Potentials Specific Data of the Analog Input Function 4 200 m Nominal load voltage L e Polarity reversal protection Voltage supply to the transduc ers Short circuit protection Galvanic isolation analog I O to electronics Permissible potential differ ence Between reference poten tial of inputs and Mana Ucm if signal 0V e Insulation resistance 24 VDC Yes Yes Yes 2 5 VDC 500 VDC Analog Value Generation Measurement principle Basic conversion time Resolution in bit incl sign incl overrange Transition frequency in put filter Momentary va
12. between inputs and Mana Ujso Potential difference between Mana and the M terminal of the C7 Isolated The isolated transducers are not connected with the local ground potential Transducers They can be operated free of potential Local conditions or interference can cause potential differences Ucy static or dynamic to occur between the measuring lines M of the input channels and the reference point of the mea suring circuit Mana However this potential difference must not exceed the permissible value Where it is possible that the permissible value for UcM might be exceeded or where you cannot determine the difference in potential accurately you must connect AIx M to Mana Figure 6 1 shows the principle of connecting isolated transducers to an iso lated analog input module Alx X lt Alx M Isolated Alx X ADU Lo transducers lt Alx M gic C7 CPU Ucm Y MANA C7 A U JL ISO o M a Ground bus Figure 6 1 Connecting Isolated Transducers to an Isolated Analog Input Module C7 623 C7 624 Control Systems C79000 G7076 C623 01 C7 Analog Input Output Non lIsolated The non isolated transducers are connected on site with the ground potential Transducers Depending on local conditions or interference potential differences static or dynamic can occur between the locally distributed measuring p
13. cece e eee eee 4 1 4 1 Connecting a Programming Device PC to a C7 602 eee eee 4 2 Connecting a Programming Device PC to Several Nodes 5 C7 Digital Input Output 00 5 1 5 1 Digital Input Function 00 teens 5 2 Digital Output Function 0 0 eects 5 3 Status Displays of DIDO 0 0 cee 5 8 C7 623 C7 624 Control Systems C79000 G7076 C623 01 IX Contents 6 C7 Analog Input Output 00 2c eens 6 1 Analog Technology 0 cece e eee eee tenets 6 2 6 2 Connecting Transducers to Analog Inputs 000ee eee eee 6 3 6 2 1 Connecting Voltage and Current Transducers 0 00 0ce eee 6 6 6 3 Connecting Loads Actuators to the Analog Output 6 7 6 4 Analog Input Function 0 0 0 c eect nee 6 10 6 4 1 Characteristics and Technical Specifications of the Analog Input Module 6 11 6 5 Analog Output Function 000 cece 6 16 Universal INPUtS 2s scsec seca eee ear EE ee rae alee ee rede 7 1 Maintenance icc cece caer ote ae terete EE tee ae vicar EA 8 1 Changing and Disposing of the Backup Battery 4 8 2 8 2 Replacing the G7 ve cicevedee iausen tee ide bee Vee Speedie ede ne A General Technical Specifications 0 0 cece eee eee eee A 1 Technical Specifications 00 ccc eee eee A 2 A 2 Notes on the CE Marking 0 cece eee ee eee eee A 5 A 3 Notes for the Machine Manufa
14. connector 6ES7 972 0B 20 as follows Cable C7 623 C7 624 Control Systems C79000 G7076 C623 01 1 Strip the insulation off the bus cable as shown in Figure 3 9 3 13 Configuring an MPI Network Outgoing cable vertical p ite 5 5 gt w a a 5 3 oO N 4 N A N A SK without programming with programming device socket device socket Outgoing cable angular 5 5 5 5 11 La 13 a aA ak ak without programming with programming device socket device socket Figure 3 9 Length of Stripped Insulation for the Connection to the Bus Connector 6ES7 972 0B 20 2 Open the housing of the bus connector by loosening the housing screw and swinging the cover upward 3 Remove the clamp type hinge cover 4 The bus connector 6ES7 972 0B 20 is delivered prepared for an angular outgoing cable If a vertical outgoing cable arrangement is required loosen the screw at the left side of the hinge slightly lift the hinge and turn the hinge inward For fixing the hinge tighten the screw on the left C7 623 C7 624 Control Systems 3 14 C79000 G7076 C623 01 Configuring an MPI Network 5 Insert the green and red wires into screw type terminal block as shown in Figure 3 10 Make sure that you always connect the same wires at the same terminal A or B for example always connec
15. engaging insert FRCE Frequency counter Universal inputs Frequency measurement Universal inputs Function keys Labeling Function modules Functional Earth 2 14 G Gap C7 GD circuit Global data Grounding Grounding rail Installing 2 18 Group error CPU H Highest MPI address 3 2 Index 2 i IM360 2 20 IM360 interface module 2 20 IM361 cable 2 2 2 15 Installation interference proof Installing a C7 Interface module 1 4 Interference signals Interference proof installation Interrupt input Universal inputs 7 3 K Keying Connectors 2 19 Master clock 2 23 Measuring ranges analog input 6 10 Modules Transport and storage conditions A 7 Mount bus cable to bus connector with order no 6ES7 3 13 MPL3 2 Pin assignments 2 14 MPI address Highest of FMs and CPs 3 3 of the C7 Recommendation Rules 3 3 MPI network Cable length Components Connecting a PG Example for configuring Rules for configuring Spur lines N Network components Nodes 3 2 Number O oP L 5 Operating hours counter 2 23 C7 623 C7 624 Control Systems C79000 G7076 C623 01 Index P Parameterizing Universal inputs Performance range c7 1 3 Period duration counter Universal inputs FA PG Connection to an MPI network 4 2 4 2 4 3 in MPI network 4 4 4 4 PG PC via spur line to MPI network 4 5 4 5 Pi
16. for working with STL LAD for example structure of STL LAD number formats syntax Description of all operations in STEP 7 with programming examples Description of the different addressing possibilities in STEP 7 with examples Description of all integral functions of the CPUs Description of the CPU internal registers Detailed description of all standard functions FCs integrated into STEP 7 of all system functions SFCs integrated into the operating system of a CPU Provides information for converting STEP 5 programs to STEP 7 Working with the S5 S7 Converter Rules for converting The use of converted STEP 5 standard function blocks in STEP 7 Master index for all the manuals of the documentation package C7 623 C7 624 Control Systems C79000 G7076 C623 01 Preface Other References You will find a list of further information sources on the subject of the S7 300 and other programmable controllers in Appendix D of Volume 2 of this manual Table 1 2 Further Manuals Nana System Software for S7 300 Provides basic knowledge for designing STEP 7 programs and 7 400 Program Design e Instructions for the efficient solution of the programming task with the PC PG Programming Manual and STEP 7 Principle of operation of the CPUs for example memory concept I O access addressing blocks data types data management Description of STEP 7 data management Using STEP 7 data types Using linear and structured
17. i AI2 M on e AI3 U a o AI3 I o AI3 M o AI4 U o AI4 I e AI4 M e MANA o o o o o o 2 o 2 o ae o ze o o Pin desig View of right hand side of C7 Voltage measurement Current measuremt 1 30 LS 3 S 4 4 Za 3 6 6 S Po n o 7 8 gs a je 10 10 i 11 12 AAN 12 i Pinout diagram Parts shaded in this way are not relevant for the explanation Figure 6 7 Terminal Connection Diagram of the Analog Inputs A N Caution The jumper between pins 1 2 4 5 7 8 10 11 must also be wired in the case of current measurement 6 12 C7 623 C7 624 Control Systems C79000 G7076 C623 01 C7 Analog Input Output Channels Three pins are combined to form a channel Table 6 1 Channels of the Analog Input Module Current input AI2 Reference potential Voltage input Channel 3 Current input AI3 Reference potential Voltage input Channel 4 Current input AI4 Reference potential Connection of an Only one analog sensor can be connected to an analog input channel Analog input Voltage Measurement Voltageo O Current o One channel voltage measurement Reference potentialO O Figure 6 8 Connection of a Channel for Voltage Measurement Current Measurement When connecting a current measurement channel the voltage pin and the current pin are to be jumpered Voltage O al Current o
18. large they cannot be inserted into the keyboard Labeling strips can only be changed when the C7 is not installed The sealing ring should be replaced Proceed as follows Step Action 1 Cut off the corners of the labelling strip that are marked with a C7 623 K1 K8 NI 2 2 If possible hold the labelling strip at the end you want to insert in the slit Hold the strip horizontally Hold the strip by touching both surface areas rather than the edges to facilitate insertion 3 Slide the strips into the slits provided The location of the slits is shown in Figure 2 1 The strips are slid over the existing labeling 4 To avoid bending the strip as you insert it move it backward and forward several times C7 623 C7 624 Control Systems 2 4 C79000 G7076 C623 01 Installing and Preparing the C7 Figure 2 1 Inserting Labeling Strips C7 623 C7 624 Control Systems C79000 G7076 C623 01 2 5 Installing and Preparing the C7 2 3 Installing a C7 Installation The C7 has been prepared for fixed installation in a switching panel or cabi net door Proceed as follows Make a standard cutout in the switching panel in accordance with DIN 43700 dimensions 230 5 x 158 5 mm Insert the enclosed sealing ring behind the front panel see Figure 2 2 Insert the C7 in the cutout in the switching panel Insert the 4 fixing brackets seq Figure 2 4 into the
19. metal clad plastics boxes or metal cans Al Packing Modules ways store ESD modules in conductive packing material without Casing Cover Batteries When packing modules incorporating batteries cover the battery connections with insulating tape or insulating material to avoid short circuiting of the battery Remove the battery if possible C7 623 C7 624 Control Systems B 6 C79000 G7076 C623 01 Glossary C7 623 C7 624 Control Systems C79000 G7076 C623 01 Glossary 1 Glossary A Analog Input Output Module B Backup Battery Backup Memory Baud rate Bus C7 620 C7 CPU C7 I O Glossary 2 Analog input output modules convert analog process values for example temperatures into digital values that can be further processed by the C7 CPU or they convert digital values into analog manipulated variables The backup battery guarantees that the gt user program in the gt C7 CPU is stored safe from power failures and that data areas memory bits timers and counters remain retentive The backup memory guarantees backup of memory areas of the gt C7 620 without a backup battery A programmable number of timers counters memory bits and data bytes the retentive timers counters memory bits and data bytes are backed up Speed at which data are transmitted transmission rate in bit s A bus is a transmission medium that connects two or more nodes with each other Data transmission can be serial
20. nodes on the MPI are connected to each other via a network Each node is identified by a unique address MPI address A network is a connection of several C7s and or S7 300s and further termi nals such as a programming device over a connecting cable Data are exchanged between the connected devices over the network C7 623 C7 624 Control Systems C79000 G7076 C623 01 Glossary N Node Number Non lsolated O Operating System of the C7 CPU Parameter Parameterization Parameters Dynamic Parameters Static PG PLC The node number represents the access address of a C7 CPU C7 OP or a programming or other intelligent I O module when it communicates with other nodes over an gt MPI network The node number is assigned to the C7 CPU C7 OP and programming In non isolated input output modules the reference potentials of the control circuit and the load circuit are electrically connected The operating system of the C7 CPU organizes all functions and sequences of the C7 CPU that are not connected with a special control task 1 Variable of a STEP 7 code block 2 Variable for setting the behavior of a module one or more per module Each module is supplied from the factory with a meaningful basic setting that can be modified using the STEP 7 tool S7 Configuration There are static parameters and gt dynamic parameters Parameterization refers to the setting of the behavior of a modu
21. signal lines parallel to power lines Use a separate cable duct located at least 50 cm from power lines Install devices which could bring in interference signals from the outside at the bottom of the cabinet Place the grounding rail directly at the cabinet en trance so that cables which could be carrying interference signals can be ap plied directly to grounding potential Apply all shielded lines with the shield here Apply only the outer shield of double shielded signal lines here Install long signal lines along the cabinet walls Setting up the cabinet in ac cordance with EMC guidelines is an important factor in the reduction of in terference All grounding connections in the cabinet must have large cable cross sections and be applied over a large surface Insulate analog devices in the switching cabinet and ground them to a single point in the cabinet using copper tape Always use equivalent metals for the materials Never use aluminum danger of oxidation Connect all doors and metal parts sides back and cover of the cabinet at least three times to the cabinet frame short paint free large area connec tions C7 623 C7 624 Control Systems C79000 G7076 C623 01 Installing and Preparing the C7 Note If your system generates high electrostatic voltages for example textile ma chines and special construction machines run the grounding lines of the machine parts carrying interference signals to a separate ope
22. user program located in the flash memory of the C7 CPU There are two methods of clearing the C7 CPU e Clearing with the C7 system function Operating modes of the C7 e Clearing with the PG function see programming device manual Clearing with the PG function is only possible when the C7 CPU is at STOP The following is a description of how to clear the C7 CPU using the system function C7 CPU Control modes 1 Select the System Function Menu by pressing the oa SHIFT L keys HELP C7 623 C7 624 Control Systems C79000 G7076 C623 01 Installing and Preparing the C7 The following menu is displayed C7 623 SIMATIC C7 SYSTEM FUNCTIONS DI DO z C7 624 KEY DI DO F1 F2 Fs Fa Fs F6 F7 Fe Figure 2 13 System Function Menu with Associated Function Keys 2 Select the C7 CPU Modes as follows e C7 623 By pressing FT or F2 e C7 624 By pressing FT or F4 C7 623 C7 624 Control Systems C79000 G7076 C623 01 2 25 Installing and Preparing the C7 The following menu is displayed C7 623 MODE STOP RUNP RUN STOP MRES RUNP RUN STOP MRES eo Ft Fa Ft Fa Fs 6 F7 Fs Figure 2 14 C7 CPU Modes Menu with Associated Function Keys 3 Select the STOP function by pressing the relevant function keys The STOP indicator light
23. 1 If this function is set the input responds like a normal interrupt input that is a process interrupt is triggered in the C7 CPU as a response to the parameter ized edge If this function is set the input responds like a normal digital input see Sec tior 5 2 The only difference here is that the current process signal is not automatically fed to the control program but must first be read in from the TO These universal inputs enable you to capture counter pulses up to a frequency of 10 kHz The counter can count either up or down This enables you to count pulses within a programmed length of time From this you can calculate a frequency lt 10 kHz This function enables you to count fixed timer ticks between two equal edges From this you can calculate the duration of an interval period C7 623 C7 624 Control Systems C79000 G7076 C623 01 Universal Inputs Technical Specifications of the Universal Inputs Specific Data of the Universal Inputs Data for Selecting a Sensor Number of inputs 4 Input voltage Cable length shielded 1000 m Nominal voltage ZANDE eae e For 1 signal from 11 to 30 V Roa 00 m e For 0 signal from 3 to 5 V Voltages Currents Potentials Input current Nominal load voltage L 24 VDC e At 1 signal from 2 to 8 mA Number of simultaneously en 4 Input delay time ergizable inputs Programmable No Galvanic isolation No e At 0 to 1 approx 0 01 ms F
24. 3 C7 624 Control Systems C79000 G7076 C623 01 10V 100 KQ 20 mA lt 250 Q 4to20 mA lt 250 Q 18 V Possible Possible Balanced by continu ous on line calibration 6 15 C7 Analog Input Output 6 5 Analog Output Function This Section This section contains e The characteristics of the analog output function e The technical specifications of the analog output function You will learn e How to start up the analog output function e The various ranges of the analog output function e The parameters you can use to influence the characteristics of the analog output function e The technical specifications of the analog output function Characteristics The output function has the following characteristics e 1 output e The output can be selected either as Voltage output or Current output e Resolution 12 bits incl sign e Parameterizable diagnostics e Isolated Note If you modify the output ranges during operation of the analog output func tion intermediate values can arise at the output C7 623 C7 624 Control Systems 6 16 C79000 G7076 C623 01 C7 Analog Input Output Terminal Figure 6 11 shows the terminal connection diagram of the analog output Connection function Diagram View of right hand side of C7 00000000000 0000000000000 o Voltage output Current output Ao u e Analog output l4 AO I a2 O AO M _ 0 S
25. 3 01 B 3 Guidelines for Handling Electrostatic Sensitive Devices ESD B 3 General Protective Measures Against Electrostatic Discharge Damage Keep Plastics away Provide Sufficient Grounding Avoid any Contact Additional Precautions for Modules without Housings B 4 Keep plastics away from sensitive devices Most plastic materials have a ten dency to build up electrostatic charges easily Make sure that the personnel working surfaces and packaging are suffi ciently grounded when handling electrostatic sensitive devices If possible avoid any contact with electrostatic sensitive devices Hold mod ules without touching the pins of components or printed conductors In this way the discharged energy cannot affect the sensitive devices Note the following measures that have to be taken for modules that are not protected against accidental contact e Touch electrostatic sensitive devices only if you wear a wristband complying with ESD specifications or if you use special ESD footwear or ground straps when walking on an ESD floor e Persons working on electronic devices should first discharge their bodies by touching grounded metallic parts e g bare metal parts of switchgear cabinets water pipes etc e Protect the modules against contact with chargeable and highly insulating materials such as plastic foils insulating table tops or clothes made of plastic fibres e Place electrostatic sensitiv
26. 7 M reference potential C7 623 C7 624 Control Systems C79000 G7076 C623 01 2 13 Installing and Preparing the C7 MPI Multipoint interface Functional Earth 24 VDC input author Figure 2 9 C7 View with MPI and C7 Power Supply MPI 24 VDC input C7 power supply 1 NC L 2 M24V M ground M24V 3 RS485 line B A authorization input 5 M5V 6 P5V 7 P24V 8 RS485 line A ground using a cable lug and a cable with a minimum cross section of 4 mm Functional Earth Connect the functional ground terminal A5 se Figure 2 8 to cabinet C7 623 C7 624 Control Systems 2 14 C79000 G7076 C623 01 Installing and Preparing the C7 C7 Device Connections You can use the following cables for connecting the C7 to other devices Table 2 7 Cables for Connecting to the C7 Connecting Cable Length Special Features Illustration Connection Between MPI Programming device cable 5m C7 lt gt PG C7 lt gt S7 300 C7 lt gt S7 400 PROFIBUS bus cable User must pre C7 lt PG interior cable pare cable i mit C7 lt C7 direct buried cable C7 lt S7 300 and bus connectors C7 lt S7 400 without programming port with programming port and PROFIBUS bus terminal R
27. 7076 C623 01 6 1 C7 Analog Input Output 6 1 Analog Technology Introduction Analog I O Ungrounded Configuration 6 2 There are different analog inputs and one analog output available to you in the C7 for connecting sensors and or loads actuators This section covers the following A description of analog value representation the measuring types mea suring ranges and output ranges in the C7 A description of how to connect the sensors or loads actuators to the ana log I O The principles of using analog I O Behavior of analog I O The C7 cannot be installed in an ungrounded configuration C7 623 C7 624 Control Systems C79000 G7076 C623 01 C7 Analog Input Output 6 2 Connecting Transducers to Analog Inputs Overview Cables for Analog Signals Isolated Analog Input Connecting Transducers to Analog Inputs You can connect various types of transducers to the analog inputs e Voltage transducers e Current transducers as 4 wire transducers This section tells you how to connect up your transducers and what precau tions you have to take when doing so To reduce electrical interference you should use twisted pair shielded cables for the analog signals The shield of the analog signal cables should be grounded at both cable ends If there are potential differences between the cable ends an equipotential bonding current can flow over the shield This can interfere with the analog signals In suc
28. C7 is permanently set to 187 5 kbps You can connect the following devices to the MPI e Programming devices PGs PCs e Operator interface systems OPs e 7 300 M7 300 e 7 400 M7 400 e Further C7s e FMs CPs Convention In the following all devices that you connect in an MPI network are called nodes Please note that the C7 occupies two MPI addresses and therefore consists internally of two nodes A segment is a bus line between two terminating resistances A segment can contain up to 32 nodes You can connect up to 126 addressable nodes via the MPI You must assign an MPI address and a highest MPI address to each node to enable all nodes connected via the MPI to communicate with each other Note The RS 485 repeater has no MPI address C7 623 C7 624 Control Systems C79000 G7076 C623 01 Configuring an MPI Network Default MPI Addresses of the C7 Rules for the MPI Addresses Special Features of CPs and FMs CPU CPU Communication GD Circuit The following table shows the default MPI addresses with which the devices are supplied Node Device Default Highest Default MPI Address MPI Adress 0 15 1 15 2 15 Please observe the following rules before assigning MPI addresses e All MPI addresses in an MPI network must be different e The highest possible MPI address must be gt the largest actual MPI ad dress and must be the same for all node xception Connecting
29. DIN IEC 68 2 2 Operating 0 C to 45 C if installed at an angle of 45 0 C to 50 C for vertical installation Note e C7 624 At 45 C and with horizontal installation legibility of the display is restricted e C7 623 At temperatures lt 10 C fast changing values are no longer s hown correctly Non operating 20 C to 70 C Relative humidity Tested in accordance with DIN IEC 68 2 3 Operating 5 to 95 at 25 C no condensation Non operating 5 to 95 at 25 C no condensation Atmospheric pressure Operating 1080 795 hPa 1000m bis 2000m Non operating 1080 660 hPa 1000m bis 3500m Mechanical environmental conditions Vibration Tested in accordance with DIN IEC 68 2 6 Operating 10 to 58Hz amplitude 0 075mm 58 to 500Hz acceleration 9 8m s2 Non operating 5 to 9Hz amplitude 3 5mm 9 to 500Hz acceleration 9 8m s2 Shock Tested in accordance with DIN IEC 68 2 29 Operating Semi sinusoidal 100m s2 10g 16ms 100 shocks Non operating 250m s 25g 6ms 1000 shocks Resistance to fire hazards Connector strips v2 Connector strips in housings VO C7 623 C7 624 Control Systems C79000 G7076 C623 01 A 3 General Technical Specifications 24 V DC Power Supply ZN Relevant for the U S A and Canada FM Approval A 4 The entire 24 V DC power supply for the C7 623 and C7 624 operating voltage load voltage relay power supply etc must be provided in the form
30. Functions Diagnostics Interrupt Equipotential Bonding Error display Flash EPROM Flash Memory Glossary 4 Diagnostics events include errors in a digital function in the C7 system faults in the C7 caused for example by programming errors or operating mode transitions The diagnostics functions encompass the entire system diagnostics and in clude the detection evaluation and signaling of faults within the C7 Modules with diagnostics capability signal detected system errors to the gt C7 CPU via diagnostics interrupts Electrical connection equipotential bonding conductor that brings the bo dies of electrical resources to the same or approximately the same potential as foreign conducting bodies in order to prevent interference or hazardous voltages arising between the bodies Error display is one of the possible responses of the operating system to run time errors The other possible responses are Error response in the user pro gram STOP status of the C7 CPU FEPROMS correspond in their function to the electrically erasable EEPROMs but they can be erased significantly faster HEPROM flash eras able programmable read only memory The following data can be stored in a flash EPROM safe from power failure e The user program e The parameters that determine the behavior of the gt C7 CPU and the T O functions of the C7 Flash EPROM C7 623 C7 624 Control Systems C79000 G7076 C623 01 G
31. M cable 5 m 6ES7 368 3BF00 0A A0 IM cable 10 m 6ES7 368 3CB00 0AA0 C7 623 C7 624 Control Systems C79000 G7076 C623 01 Installing and Preparing the C7 e Printer cable for V 24 serial interface 6XV 1440 2C max 16 m The following applies for the length key 6XV1440 2C Multiplier 0 01 m 0 1 m 1 0m 10 0 m 100 0 m qGxzinm DHANDNBWNNK KF Peele gt SWODONNOCAWUDN o Length digit 10 C7 623 C7 624 Control Systems C79000 G7076 C623 01 2 3 Installing and Preparing the C7 2 2 Inserting the Labeling Strips Labeling Strips The function keys and softkeys are labeled using labeling strips which are inserted into the keypad from the side The labeling as supplied is as follows e The function keys of the C7 623 are labeled with K1 K8 and K9 K16 and the softkeys are labeled with F1 F4 e The function keys of the C7 624 are labeled with K1 K8 and K9 K16 and the softkeys are labeled with F1 F8 Plant Specific A set of blank labeling strips are enclosed with the C7 They can be used for Labelling plant specific labeling of the C7 Caution The writing on the strips must be wipe resistant before inserting A keypad membrane soiled on the inside cannot be cleaned and can only be replaced in the factory A sheet with plant specific labelling strips is also provided The strips must be cut off exactly along the marked line If the labelling strips are too
32. MPI network on an MPI network 3 e o 2 Ta 3 CO The bus cable can be zy connected on the right or on the left SIEMENS Figure 3 12 Connecting Bus Cable to the Bus Connector 8 Screw the housing back on Please ensure that the cable shielding is bare under the shielding clip C7 623 C7 624 Control Systems C79000 G7076 C623 01 3 17 Configuring an MPI Network 3 5 3 Plugging the Bus Connector into the Module Connecting the Proceed as follows to connect the bus connector Bus Connector 1 Plug the bus connector into the module 2 Screw the bus connector to the module 3 Ifthe bus connector Order No 6ES7 is at the start or end of a seg ment you must switch on the terminating resistance switch position ON see Figure 3 13 Please ensure that the stations with the terminating resistance are always sup plied with power during power up and during operation Terminating resistance p on Terminating resistance on switched on not switched on Figure 3 13 Bus Connectors 6ES7 Terminating Resistance Switched On and Not Switched On Removing the Bus You can remove the bus connector with looped through bus cable from the Connector PROFIBUS DP interface at any time without interrupting data traffic on the bus A Warning Possibility of interrupting data traffic on the bus A bus segment must always
33. ProTool Lite e Using ProTool Lite e Configuring e Displays and messages e Loading the configuration into the C7 Structure of This The manual has the following aids to help you find specific information in Manual the manual e At the beginning of the two volumes you will find a complete directory of contents e In each chapter you will find information on the left hand column of every page giving you an overview of the contents of that section e After the Appendices there is a Glossary containing important technical terms used in the manual e At the end of the manual there is a detailed index Standards The C7 control system conforms to standards as described in Appendix A 1 Queries If you have any questions concerning the C7 control system please contact your local Siemens representative You will find a list of Siemens representatives worldwide in Volume 2 of the manual Appendix E If you have any questions or remarks concerning the manual please fill in and return the Suggestions Corrections form at the back of Volume 2 C7 623 C7 624 Control Systems C79000 G7076 C623 01 vil C7 623 C7 624 Control Systems C79000 G7076 C623 01 Contents 1 Product Overview ified edad eeedete dad nee eae iene nee ce ete eee etive f1 1 2 Installing and Preparing the C7 00ce eee e eee eee eee 2 1 Scope of Supply and C7 Accessories 0 0c e ccc ee eee ee ee eee 2 2 Inserting the Labeling Strips
34. S 485 with 1 5 m cable with 3 m cable with programming port and 1 5 m cable o V 24 serial interface Serial interface printer cable See Catalog C7 Printer For Siemens printers ST80 1 DR210 211 2303 231 N IM361 IM361 cable C7 lt additional T O S7 300 C7 I O connections Connectors for C7 I O 16 pin 00000000060000000 C7 lt gt external 8 pin sensors Cable diameter 0 2 2 5 mm C7 623 C7 624 Control Systems C79000 G7076 C623 01 2 15 Installing and Preparing the C7 2 6 Setup Guidelines for Interference Proof Installation Overview Use and Installa tion of Interfe rence Proof Cables Cabinet setup 2 16 An automation system must be shielded to prevent interference When a system is poorly groundet or not shielded low frequency and high frequency interference signals can penetrate the internal bus of the PLC and cause malfunctions Interference signals can also be caused when relays or contactors switch very rapid changes in current or voltage high frequency interference si gnals or when two parts of a system have different grounding potentials low frequency signals Use only shielded cables for all signal connections e Ground the shields of cables on two sides for cables to the PLC bus cables cables to I O devices e The standard cables specified in the ST80 7 catalog meet these require ments e Screw down or lock all plug connections e Do not install
35. S bus cables Table 3 3 Bus Cables PROFIBUS bus cable 6XV1 830 0AH10 PROFIBUS direct buried cable 6XV1 830 3AH10 PROFIBUS drum cable 6XV1 830 3BH10 and drinks industry PROFIBUS bus cable with PE sheath for food PROFIBUS bus cable for festooning 6XV1 830 0BH10 6XV1 830 3CH10 The PROFIBUS bus cable is a two core twisted and shielded cable with the following characteristics Table 3 4 Features Surge impedance Characteristics of the PROFIBUS Bus Cable Values Approx 135 to 160 Q f 3 to 20 MHz Loop resistance Operating capacitance Attenuation 115 Q km 30 nF km 0 9 dB 100 m f 200 kHz Permissible core cross section Permissible cable diameter 0 3 mm to 0 5 mm 8mm 0 5 mm C7 623 C7 624 Control Systems C79000 G7076 C623 01 Configuring an MPI Network Rules for Cable Laying When laying the PROFIBUS bus cable you must not e twist it e stretch it or e pressit In addition when laying the interior bus cable you must observe the follow ing boundary conditions dq outer diameter of the cable Table 3 5 Boundary Conditions when Laying the Interior Bus Cable C7 623 C7 624 Control Systems C79000 G7076 C623 01 Features Edge Conditions Bending radius when bent once gt 80 mm 10 X da Bending radius when bent several times gt 160 mm 20 x da Permissible temperature range when laying 5 C to 50 C Storage and stationary ope
36. SIEMENS SIMATIC C7 623 C7 624 Control System Volume 1 Installation Assembly Wiring Manual C79000 G7076 C623 01 Preface Contents Teil 1 User Information Product Overview Installing and Preparing the C7 Configuring the MPI Network oy n 5 me 2 D fe gt amp N l Connecting a PG to a C7 Teil 3 I O C7 Digital Input Output C7 Analog Input Output Q gt C d S m Z D D S 5 O lt v Q 5 n D v D O 5 Z O D QO gt O ko gt O 7a v op O D Q O a O 5 D gt O N Oo o Guidelines for Handling Electro static Sensitive Devices ESD Index Glossary Safety Guidelines ZN Qualified Personnel Correct Usage ZN ZN ZN Trademarks This manual contains notices which you should observe to ensure your own personal safety as well as to protect the product and connected equipment These notices are highlighted in the manual by a warning triangle and are marked as follows according to the level of danger Warning indicates thatdeath severe personal injury orsubstantial property damage can resultif proper precautions are not taken Note draws your attention to particularly importantinformation on the product handling the product orto a particular part of the documentation The device system may only be set up and operated in conjunction with this manual Only qual
37. TEP 7 tool is a tool of gt STEP 7 tailored to a specific task Substitute values are values that are output to the process or used in the user program in place of a process value in the event of a fault occurring in signal modules The substitute values can be specified by the user for example keep old value System diagnostics includes the detection evaluation and signaling of faults occurring within the programmable controller Examples of such faults in clude program errors or module failures System faults can be displayed via LEDs or using the S7 Information tool The system memory is integrated on the CPU and implemented in the form of a RAM The address areas for example timers counters memory bits and the data areas required internally by the operating system for example buffers for communications are stored in the system memory The time delay interrupt belongs to one of the priority classes in program execution on the C7 CPU It is generated after expiry of a time started in the user program The relevant organization block is then executed A timed interrupt is generated periodically by the C7 CPU according to a parameterizable time grid It triggers execution of the relevant organization block The time of day interrupt belongs to one of the priority classes in program execution on the C7 CPU It is generated dependent on a specific date or daily and time for example 9 50 or hourly by the minute The relevan
38. a pro gramming device to several nodes see Chapter 4 CPs and FMs as customized modules or in expansion racks with their own MPI address have the following special feature Their MPI address is deter mined automatically by the C7 and assigned in accordance with the follow ing system C7 IM361 CP CP MPI C7 address MPI addr MPI addr 1 for C7 OP C7 CPU 1 C7 CPU 2 2 for C7 CPU Figure 3 1 Automatic Assignment of MPI Addresses for CPs and FMs A C7 CPU can communicate with up to four C7 CPUs or S7 300 CPUs They can exchange global data Please refer to 231 for detailed information on global data Sending and receiving of global data is organized in GD circuits Each C7 CPU may participate in up to four different GD circuits C7 623 C7 624 Control Systems C79000 G7076 C623 01 3 3 Configuring an MPI Network 3 2 Rules for Configuring an MPI Network Overview Rules 3 4 In this section you will be shown e how to configure an MPI network e which rules you must observe You must observe the following rules when connecting the nodes of an MPI network e Before you interconnect the individual nodes of the MPI network you must assign the MPI address a
39. ad them into the C7 and print out screen displays and messages The present manual describes the hardware and the software of the C7 623 and C7 624 It consists of two volumes Volume 1 of the manual covers the following topics Installation and preparation of the C7 623 or C7 624 Networking of the C7 623 or C7 624 with programming devices PGs and other devices Connecting the digital and analog I O Connecting the I O to the universal inputs Connecting the IM361 interface module Connecting a printer to the C7 Volume 2 of the manual covers the following topics Startup restart of the C7 Control with the C7 CPU Addressing and parameterizing the C7 I O C7 diagnostics Using the MMI functions of the C7 Preface Conventions To make the manual easier to read the device type description C7 623 or Concerning C7 C7 624 will be referred to throughout the manual as C7 Scope of This The present manual is valid for the following C7s Manual C7 Order Number From Edition C7 623 6ES7623 1AE00 0AE3 C7 624 6ES7624 1AE00 0AE3 C7 Manual This manual is available under Order No 6ES7623 1 AEOO 8 AAO Other Pertinent The present manual describes the C7 623 and C7 624 fully For program Manuals ming expanding and configuring a C7 you require the following further manuals C7 Programming Expanding Configuring Parameterizing Statement List for Hardware and ProTool S7 300 and S7 400 Installation me or
40. ailed technical specifications of the digital outputs Bottom view of C7 0 0 0 Digital outputs lag 0 2 2 0 3 3 g 2L 0 4 4 0 5 5 VY 0 6 6 0 7 7 Yeh A RE oF L 1 0 0 Ll 1 l 1 2 2 1 3 3 aM 1 4 4 Block diagram 1 5 5 1 6 6 1 7 7 Load power supply gt 24V do 00 07 Ground gt 24V DO 1 0 1 7 Ground Channel number Parts with this shading are not relevant to this Pin No Pin No example Figure 5 2 Terminal Connection and Block Diagram of the Digital Outputs Connection of If the maximum permissible current is utilized for the load power supply Load Power both pins should be wired to avoid overloading of the contacts For relatively Supply low currents wiring of only one 24V pin is sufficient C7 623 C7 624 Control Systems 5 6 C79000 G7076 C623 01 C7 Digital Input Output Specific Data of the Digital Output Function Data for Selecting an Actuator Number of outputs 16 Output voltage e At 1 signal L 0 8 V Cable length Output current Unshielded 600 m e At 1 signal e Shielded 1000 m nominal value 0 5 A Voltages Currents Potentials Permissible range 5 mA 0 5 mA e At 0 signal quiescent max 0 5 mA Nominal load voltage L 24 VDC 0 5A current Total current of the outputs Lamp load max 5 W p
41. al Environment Arranging the C7 When installing a C7 please note the following e The switching panel may be 1 to 4 mm thick Make sure the sealing ring fits tight at all spots e A gap of 50 to 70 mm to a housing wall must be observed on the sides of the C7 as shown in Figure 2 7 e The sealing ring on the frontplate must sit perfectly e The tabs of the insertion strips must not be caught e The C7 must be protected from direct sunlight lt 70 gt lt 70 gt Figure 2 7 Gap Dimensions to be Adhered to when Installing the C7 C7 623 C7 624 Control Systems C79000 G7076 C623 01 2 9 Installing and Preparing the C7 2 5 Electrical Installation Overview The plug and socket connectors interfaces required for connecting the vari ous inputs and outputs of the C7 are provided Analog inputs Analog outputs AUX digital inputs IM g p interface Digital inputs top Digital outputs bottom Serial interface V 24 24 VDC power supply e g for printer Figure 2 8 A view of the C7 with External I O Interfaces C7 Pin Tables 2 1 to2 6 show the pin assignments for the following C7 connectors Assignments Digital Inputs Table 2 1 Pin Assignments of the Digital Inputs Pin No Signal Explanation 0 0 10 0 0 1 10 1 Digital i
42. ameterizable e 10V 20 mA 12 bits incl sign e Diagnostics information Yes group error fault 4 to 20 mA readable Conversion time max 0 8 ms Settling time e For resistive load 0 1 ms e For capacitive load 3 3 ms e For inductive load 0 5 ms Substitute value injectable Yes parameterizable C7 623 C7 624 Control Systems 6 18 C79000 G7076 C623 01 C7 Analog Input Output Data for Selecting an Actuator Output ranges nominal values Load resistance e At voltage outputs e At current outputs e Capacitive Load e Inductive Load Voltage output e Short circuit protection e Short circuit current Current output e Idle voltage Connection of actuators e For voltage output 2 wire connection e For current output 2 wire connection Supply of sensors 10V 20 mA from 4 to 20 mA in 2k Q 500 Q l uF 1 mH Yes countervoltage proof max 25 mA min 15V Possible Possible External not via C7 C7 623 C7 624 Control Systems C79000 G7076 C623 01 6 19 C7 623 C7 624 Control Systems C79000 G7076 C623 01 Universal Inputs Universal Inputs This chapter describes the technical specifications and characteristics of the universal inputs for the C7 C7 623 C7 624 Control Systems C79000 G7076 C623 01 Universal Inputs Overview The C7 has 4 digital universal inputs that provide the following functionality e Interrupt input e Counter input e Frequenc
43. and constitute a serious fire hazard if they are heated or damaged Store backup batteries in a cool and dry place To prevent a hazard in the use backup batteries you must observe the follow ing rules Do not e recharge e heat e burn e drill e crush e short circuit backup batteries C7 623 C7 624 Control Systems C79000 G7076 C623 01 A 7 C7 623 C7 624 Control Systems C79000 G7076 C623 01 Guidelines for Handling Electrostatic Sensitive Devices ESD This Chapter Section B 1 B 2 B 3 B4 B 5 C7 623 C7 624 Control Systems C79000 G7076 C623 01 Contents What is ESD Electrostatic Charging of Objects and Persons General Protective Measures Against Electrostatic Discharge Damage Taking Measurements and Working on ESD Modules Packing Electrostatic Sensitive Devices B 1 Guidelines for Handling Electrostatic Sensitive Devices ESD B 1 What is ESD Definition All electronic modules are equipped with large scale integrated ICs or com ponents Due to their design these electronic elements are very sensitive to overvoltages and thus to any electrostatic discharge These Electrostatic Sensitive Devices are commonly referred to by the ab breviation ESD Electrostatic sensitive devices are labelled with the following symbol A N Caution Electrostatic sensitive devices are subject to voltages that are far below the voltage values that can still be perceiv
44. be terminated at both ends by the terminating resistance This is not the case if the last slave with bus connector is not sup plied with power Since the bus connector draws its power from the node the terminating resistance is ineffective Please ensure that the stations in which the terminating resistance is switched in are always supplied with power C7 623 C7 624 Control Systems 3 18 C79000 G7076 C623 01 Connecting a Programming Device 4 PC toaC7 This Chapter Connecting a Programming Device PC to a C7 4 2 Connecting a Programming Device PC to Seve ral Nodes C7 623 C7 624 Control Systems C79000 G7076 C623 01 4 1 Connecting a Programming Device PC to a C7 4 1 Connecting a Programming Device PC to a C7 Possibilities Cable Lengths Connecting a Programming Device PC to a C7 4 2 This chapter covers the methods open to you for connecting a programming device or PC via an MPI will find information on cable lengths possible in each case in Section 3 3 You can connect a programming device or PC with the MPI of the C7 using a prefabricated programming device cable Alternatively you can make up the connecting cable yourself using the PRO FIBUS bus cable and bus connectors se gt Section 3 5 Figure 4 1 shows the components for connecting a programming device PC toa C7 goo Boo a 0000 ogg oO OOOOOoooO ad 0000000 O lk m Pr
45. cturer 202 0cceeeeee eee eee A 6 A 4 Transport and Storage Conditions for Backup Batteries A 7 B Guidelines for Handling Electrostatic Sensitive Devices ESD B 1 Whatis ESD s 0 siendia wads daa pina e aaa dene ee eee B 2 B 2 Electrostatic Charging of Objects and Persons 0000000 B 3 B 3 General Protective Measures Against Electrostatic Discharge Damage B 4 B 4 Taking Measurements and Working on ESD Modules B 5 Packing Electrostatic Sensitive Devices 000 cece een ees C7 623 C7 624 Control Systems C79000 G7076 C623 01 Product Overview This Chapter This chapter contains general information concerning the C7 623 and C7 624 A brief overview of the performance range provides you with a first impression of the two units This chapter also tells which additional components you can connect to a C7 Accessories for You require the following accessories to operate the C7 Dperating Me Ge Programming device PG or PC with MPI and programming device cable e You must load the following on the programming device or PC STEP Tools ProTool or ProTool Lite C7 623 C7 624 Control Systems C79000 G7076 C623 01 1 1 Product Overview Overview The C7 systems are available in two variants C7 623 Featuring a 4 line display with 20 characters per line and a character height of 5 mm see Figure 1 1 Figure 1 1
46. e devices only on conductive surfaces Tables with ESD surface Conductive ESD foam plastic ESD foam plastic is mostly coloured black ESD bags e Avoid direct contact of electrostatic sensitive devices with visual display units monitors or TV sets minimum distance to screen gt 10 cm C7 623 C7 624 Control Systems C79000 G7076 C623 01 Guidelines for Handling Electrostatic Sensitive Devices ESD ESD Precautions The following Figure once again illustrates the precautions for handling elec trostatically sensitive devices rT oaQao9 e E Conductive flooring material Table with conductive grounded surface ESD footwear ESD smock Grounded ESD wristband Ground connection of switchgear cabinet Grounded chair C7 623 C7 624 Control Systems C79000 G7076 C623 01 B 5 Guidelines for Handling Electrostatic Sensitive Devices ESD B 4 Taking Measurements and Working on ESD Modules Use Grounded Measurements may be taken on electrostatic sensitive devices only if Measuring Devices j he Only e the measuring device is grounded e g via protective conductor or e the tip of the isolated measuring device has previously been discharged e g by briefly touching grounded metal parts B 5 Packing Electrostatic Sensitive Devices Using Conductive Generally use conductive materials for packing modules without casing and Material for components You may also use
47. e groups e Insulation resistance 500 VDC Status Interrupts Diagnostics Interrupts No Diagnostics functions No Data for Selecting a Sensor Input voltage e Nominal voltage e For 1 signal e For 0 signal Input current e For 1 signal Input delay time e Programmable e At 0 to 1 e At 1 to 0 Input characteristic Type of input in accordance with IEC 1131 Connection of 2 wire BEROs e Permissible quiescent cur rent C7 623 C7 624 Control Systems C79000 G7076 C623 01 24 VDC from 11 to 30 V from 3 to 5 V from 6 to 11 5 mA No from 1 2 to 4 8 ms from 1 2 to 4 8 ms In accordance with DIN EN 61131 2 IEC 1131 Part 2 Type 2 Possible lt 2mA C7 Digital Input Output 5 2 Digital Output Function Characteristics The digital output function has the following characteristics e 16 outputs isolated e Output current 0 5 A e Nominal load voltage 24 VDC e Suitable for solenoid valves and d c contactors Special Feature When the supply voltage is switched on the digital output function sends a pulse to the outputs A pulse can be approximately 50 us within the permissi ble output current range C7 623 C7 624 Control Systems C79000 G7076 C623 01 5 5 C7 Digital Input Output Terminal Figure 5 2 shows the terminal connection and the block diagram of the digi Connection and tal outputs Block Piagram The pages following contain det
48. ed by human beings These voltages are present if you touch a component or module without previously being electrostatically discharged In most cases the damage caused by an over voltage is not immediately noticeable and results in total damage only after a prolonged period of operation C7 623 C7 624 Control Systems B 2 C79000 G7076 C623 01 Guidelines for Handling Electrostatic Sensitive Devices ESD B 2 Electrostatic Charging of Objects and Persons Electrostatic Charging Limits for Perceiving Electrostatic Discharges Every object with no conductive connection to the electrical potential of its surroundings can be charged electrostatically In this way voltages up to 15 000 V can build up whereas minor charges i e up to 100 V are not rele vant Examples e Plastic covers upto 5000 V e Plastic cups upto 5000 V e Plastic bound books and notebooks upto 8000 V e Desoldering device with plastic parts upto 8000 V e Walking on plastic flooring up to 12000 V e Sitting on a padded chair up to 15 000 V e Walking on a carpet synthetic up to 15 000 V An electrostatic discharge is e perceptible from 3500 V e audible from 4500 V e visible from 5000 V A fraction of these voltages is capable of destroying or damaging electronic devices Carefully note and apply the protective measures described below to protect and prolong the life of your modules and components C7 623 C7 624 Control Systems C79000 G7076 C62
49. er group ad i e Upto20 C 4A Parallel switching of 2 outputs Upto45 C 2A For logic operations Possible outputs of the same group only Galvanic isolation Yes optocoupler For enhancing perfor Not possible e In groups of 8 mance Insulation resistance 500 VDC Activating a digital input Yes Status Interrupts Diagnostics Max switching frequency Interrupts e With resistive load lamp 100 Hz f load Diagnostics functions a i e With inductive load 0 5 Hz Inductive cutoff voltage lim L 48 V C7 623 C7 624 Control Systems C79000 G7076 C623 01 ited internally to Short circuit protection of the outputs e Operating point Yes electronically timed 1A 5 7 C7 Digital Input Output 5 3 Status Displays of DI DO Overview The process image of the digital I O can be displayed using a C7 system function The values represented are read as direct process image of the DI and internal process image of the DO of the C7 and displayed in BIN format It is not possible to change the display In the STOP state the actual process status for DO is 0 The process image displayed may deviate from this it is the last status set by the control pro gram Selecting the Selection of the DI DO status display does not require an operator password DI DO Status You select the function as follows Display E Sa e Select the System Function Menu by pressing S yetp e C7 623
50. guides provided Push the fixing brackets in until the spring engages Screw the 4 fixing screws enclosed with the C7 into the 4 fixing brackets enclosed seq Figure 2 5 approximately 2 to 3 turns Tighten the 4 screws lightly with a screwdriver Insert sealing ring here Figure 2 2 Inserting the Sealing Ring lt 69 gt lt 240 gt aa 168 L lt 230 540 5 gt t j __ Cutout in front panel 158 540 5 Figure 2 3 Dimension Drawings for the C7 C7 623 C7 624 Control Systems 2 6 C79000 G7076 C623 01 Installing and Preparing the C7 Fixing Bracket Before Engaging Figure 2 4 Fixing Bracket Before Engaging Fixing Bracket Engaged Figure 2 5 Fixing Bracket Engaged with Screw C7 623 C7 624 Control Systems C79000 G7076 C623 01 2 7 Installing and Preparing the C7 Loosening the Proceed as follows when loosening the fixing bracket Fixing Bracket Action Loosen screw Lift fixing bracket in Figure Bild 2 6 Push fixing bracket out of guide in Figure 2 6 Figure 2 6 Loosening the Fixing Bracket C7 623 C7 624 Control Systems 2 8 C79000 G7076 C623 01 Installing and Preparing the C7 2 4 Arranging the C7 in the Mechanic
51. h a case you should ground the shield at one end of the cable only The analog input is isolated and so there is no electrical connection between the reference point of the measuring circuit Mana and the M terminal of the C7 power supply see Figure 6 1 A potential difference Urso can occur between the reference point of the measuring circuit Mana and the M terminal of the C7 Make sure that Urso does not exceed the permissible value Where it is possible that the permissi ble value might be exceeded see technical specifications establish a con nection between the Mana terminal and the M terminal of the C7 A potential difference Uc common mode voltage may occur between the measuring line AIx M of the input channels and the reference point of the measuring circuit Mana However this potential difference must not exceed the permissible value Where it is possible that the permissible value for UcM might be exceeded or where you cannot determine the difference in potential accurately you must connect AIx M to Mana Please observe this also for the unused inputs C7 623 C7 624 Control Systems C79000 G7076 C623 01 6 3 C7 Analog Input Output Abbreviations The abbreviations used in Figures 6 1 tf 6 3 have the following meanings AIx X Measuring line AIx U or AIx I AIx M Reference potential of the measuring line Mana Reference potential of the analog measuring circuit M Ground terminal of the C7 Ucm Potential difference
52. he digital input function has the following characteristics e 16 inputs isolated as a group Nominal input voltage 24 VDC e Suitable for switches and 2 wire proximity switches BEROs for example C7 623 C7 624 Control Systems 5 2 C79000 G7076 C623 01 C7 Digital Input Output Terminal Figure 5 1 shows the terminal connection and the block diagram of the digi Connection and tal input function Block Diagram The pages following contain detailed technical specifications of the digital inputs ieee a Bottom view of C7 0 1 a Digital inputs 4 5 6 7 0 1 2 3 4 1L 5 24V 6 i t p 24 V for DI Yv A ER Ground for DI i HM Minternal Block diagram L Channel number Parts with this shading are not relevant to this le Pin No sah a Figure 5 1 Terminal Connection and Block Diagram of the Digital Input Function C7 623 C7 624 Control Systems C79000 G7076 C623 01 5 3 C7 Digital Input Output Specific Data of the Digital Input Function Number of inputs 16 Cable length e Unshielded 600 m Shielded 1000 m Voltages Currents Potentials Nominal load voltage L 24 VDC Number of simultaneously en 16 ergizable inputs Galvanic isolation Yes optocoupler e In groups of 16 Permissible potential differ ence e Between the M terminals of th
53. he principle of configuring an MPI network according to MPI Network the rules listed above 7 300 7 300 C7 i PG C7 ooo ooo D Ess am gg jara gooooosg s e Beorom AVA 3 4 i a ooo pog N Ban ooon SAE Sor 000000 ova co W i l F HEE gl PEE q Bees 2 Paad coon S88 b E EGEEEeee Se Only connected via spur line at startup or during service work 0 x MPI addresses of the nodes Figure 3 5 Example of an MPI Network C7 623 C7 624 Control Systems C79000 G7076 C623 01 3 7 Configuring an MPI Network 3 3 Cable Lengths Segment in MPI You can implement cable lengths up to 50 m in a segment of an MPI net Network work The 50 m applies from the Ist node to the last node of the segment Longer Cable If you implement longer cable lengths than those permissible in one segment Lengths you must use RS 485 repeaters The possible maximum lengths between two RS 485 repeaters correspond to the cable length of a segment However when using these maximum cable lengths please note that there must be no other node remote segment between the two RS 485 repeaters You can connect up to nine RS 485 repeaters in se
54. hen a C7 CPU is restarted for example after selection of one of the C7 CPU Operating Modes in the System Functions menu or on switching the mains power ON the organization block OB 100 complete restart is executed before cyclic program execution OB1 At complete restart the process image of the inputs is read in and the STEP 7 user program is executed starting at the first instruction in OB1 Assignment of modules to mounting racks slots and addresses in the case of signal modules for example The configuration memory is a flash memory containing the configuration data and integrated in the C7 OP Communications processors CPs are intelligent modules with their own processor They form an important group within the components of a pro grammable controller We differentiate between various types of communica tions processors according to their tasks for example CPs for signaling and listing for point to point connection for the operator interface COROS for bus connections SINEC and for diagnostics and mass storage applications The cycle time is the time required by the gt C7 to execute the user pro gram once Diagnostics functions gt System diagnostics The diagnostics buffer is a buffered memory area in the C7 CPU in which diagnostics events are stored in order of occurrence C7 623 C7 624 Control Systems C79000 G7076 C623 01 Glossary 3 Glossary Diagnostics Events Diagnostics
55. hey are ar Status and Fault ranged on the C7 LEDs Display Meaning Explanation SF red C7 CPU group error Lights up in the event ofei e Hardware faults e Firmware errors e Programming errors e Parameter assignment error e Arithmetic errors e Timer errors e Defective internal memory e Battery failure or no backup on POWER ON e T O fault error in the internal I O functions You must use a programming device and read out the contents of the diagnostic buffer to determine the exact nature of the er ror fault BAF red Battery fault Lights up if the battery e has too little voltage e is defective e is not inserted 5VDC green SVDC supply for C7 Lights up if the internal 5 V voltage is O K FRCE yellow Reserved RUN green RUN mode of the C7 Lights up if the C7 is executing a user program CPU Flashes 2 Hz during C7 restart the STOP LED also lights up after the STOP LED goes dark the outputs are enabled STOP yellow RUN mode of the C7 Lights up if the C7 is not executing a user program CPU Flashes at 1 second intervals if the CPU requests a memory reset C7 623 C7 624 Control Systems C79000 G7076 C623 01 2 27 C7 623 C7 624 Control Systems C79000 G7076 C623 01 Configuring an MPI Network This Chapter C7 623 C7 624 Control Systems C79000 G7076 C623 01 This chapter describes how to configure an MPI network You will learn the following Which communicati
56. hinery Food Instrument and Control Nonelectrical Machinery u uuu Petrochemical C7 623 C7 624 Control Systems C79000 G7076 C623 01 Gy G a EE eel Pharmaceutical Plastic Pulp and Paper Textiles Transportation Other Remarks Form Your comments and recommendations will help us to improve the quality and usefulness of our publications Please take the first available opportunity to fill out this questionnaire and return it to Siemens Please give each of the following questions your own personal mark within the range from 1 very good to 5 poor Do the contents meet your requirements Is the information you need easy to find Is the text easy to understand Does the level of technical detail meet your requirements Please rate the quality of the graphics tables Oe ON eta tae Ts SD S Additional comments C7 623 C7 624 Control Systems 2 C79000 G7076 C623 01
57. ified personnel should be allowed to install and work on this equipment Qualified persons are defined as persons who are authorized to commission to ground and to tag circuits equipment and sys tems in accordance with established safety practices and standards Note the following Warning This device and its components may only be used forthe applications described in the catalog or the technical description and only in connection with devices or components from other manufacturers which have been approved or recommended by Siemens This product can only function correctly and safely if itis transported stored setup and installed correctly and operated and maintained as recommended Caution UL CSA Lithium Battery Replacement Danger of explosion if battery is incorrectly replaced R eplace only with same or equivalenttype recommended by the manufacturer Dispose of used batteries according to the manufacturer s instructions Warning FM WARNING DO NOT DISCONNECT WHILE CIRCUIT IS LIVE UNLESS LOCATION IS KNOWN TO BE NONHAZARDOUS SIMATIC and SINEC are registered trademarks of SIEMENS AG Third parties using for their own purposes any other names in this document which refer to trade marks might infringe upon the rights of the trademark owners Copyright Siemens AG 1995 All rights reserved The reproduction transmission or use of this documentor its contents is not permitted withoutexpress wri
58. in o connector Connection for D z D the PROFIBUS al pesano bus cable Terminating re ad sistance Z 2 2 2 Interface for Ne PG OP Screws for fixing to the node Installing the Proceed as follows to connect the PROFIBUS bus cable to the bus connector PROFIBUS Bus Cable for Bus Connectors 3 16 6ES7 972 0B 10 0XA0 1 Cut the bus cable to the desired length 2 Insulate the bus cable in accordance with Figure 3 11 6XV1 830 0AH10 3BH10 6XV1 830 3AH10 7 5 9 7 5 9 aa ma 6 16 6 pa r P Figure 3 11 Length of Bared Wire for Connecting to the Bus Connector 3 Open the housing of the bus connector by loosening the housing screws 4 Remove the cover C7 623 C7 624 Control Systems C79000 G7076 C623 01 Configuring an MPI Network 5 Insert the green core and the red core in the screw terminal block in ac cordance with Figure 3 12 Please ensure that the same cores are always wired to the same connec tion A or B for example always wire the green core to connection A and the red core to connection B 6 Press the cable sheath between the two clamping grips This will hold it in place 7 Screw the green and red core tightly in the screw terminal Bus cable connection for first and Bus cable for all further nodes last nodes on an
59. le In contrast to static parameters dynamic module parameters can be modified during operation by calling an SFC in the user program for example limit values of an analog signal input module In contrast to dynamic parameters static module parameters cannot be modi fied via the user program They can only be modified via the software tool S7 Configuration for example input delay of a digital signal input module Programming device Programmable controller C7 623 C7 624 Control Systems C79000 G7076 C623 01 Glossary 7 Glossary Process Image Process Interrupt Programmable Controller Programming Device RAM Reference Ground Reference Potential Glossary 8 The signal states of the digital inputs and outputs are stored in the C7 CPU in a process image We differentiate between the process image input table PID and the process image output table PIQ The process image input table is read by the input modules before execution of the user program The process image output table is transferred to the output modules by the operating system at the end of the user program A process interrupt is triggered by interrupt triggering modules as the result of certain events in the process The process interrupt is signaled to the C7 CPU Depending on the priority of the interrupt the corresponding organiza tion block is then executed An automation system of the SIMATIC S7 range Programmable c
60. le e The parameters you can use to influence the characteristics of the analog input module Available The following measurement types are available on the analog input module Measurement Types e Voltage measurement e Current measurement Measuring Ranges The measuring ranges are e Voltage 10V e Current 20mA 4 to 20mA Wire Break Check For the current range 4 to 20 mA a current of lt 1 6 mA is interpreted per software as a wirebreak see Volume 2 Section 5 2 Measuring Ranges Measuring ranges for current measurement with 4 wire transducers for 4 Wir 2 e 20mA Transducers e 4to20mA C7 623 C7 624 Control Systems 6 10 C79000 G7076 C623 01 C7 Analog Input Output 6 4 1 Characteristics and Technical Specifications of the Analog Input Module Characteristics The analog input module has the following characteristics C7 623 C7 624 Control Systems C79000 G7076 C623 01 4 inputs Measured value resolution 12 bits incl sign Measurement type selectable Voltage Current Choice of measuring range per input Parameterizable diagnostics Parameterizable diagnostics interrupt Parameterizable interrupt cycle Isolated 6 11 C7 Analog Input Output Terminal Figure 6 7 shows the terminal connection diagram of the analog inputs Connection Diagram O Analog inputs e T1 U n eh AIl I oe e AIl M Be o AI2 U Be o AI2 I a
61. lossary FM Function Grounding G Ground Ground verb Info Function Interface multipoint Interrupt Isolated An FM function module is a module that offloads the CPU of the S7 300 and 7 400 programmable controllers of time critical or memory intensive process signal handling tasks FMs generally use the internal bus for high speed data exchange with the CPU Examples of FM applications include counting positioning closed loop control Grounding with the sole purpose of ensuring the intended purpose of the electrical resources Function grounding has the effect of short circuiting in terference voltages that would otherwise have impermissible influence on the resources Conductive ground whose electrical potential at every point can be taken as Zero In the area of grounding electrodes ground can have a potential different to zero This is frequently referred to as reference ground To connect an electrically conductive part with the grounding electrode one or more conductive parts that have very good contact to ground via a grounding point The STEP 7 info functions offer you the possibility of displaying status in formation on the programming device via the connected C7 during the differ ent phases of startup and during operation of a programmable controller MPI The operating system of the C7 CPU recognizes 10 different priority classes governing execution of the user program Inte
62. lue 2 5 ms 12 132 kHz 6 14 Measurement ranges Voltage Current Measurement tolerance V A at different pins gt no coding pin 10 10V 20 20mA 4 20mA 1 of the end value C7 623 C7 624 Control Systems C79000 G7076 C623 01 C7 Analog Input Output Interference Suppression Error Limits Interference voltage suppres sion forf n X f1 1 f1 interference frequencies e Common mode interfer ence Upp lt 2 5 V Series mode interference peak value of interfer ence lt nominal value of input range Cross talk between the inputs e At50 Hz e At 60 Hz Basic error limit operational limit at 25 C gt 70 dB gt 40 dB Status Interrupts Diagnostics Interrupts e Interrupt cycle e Diagnostic interrupt Diagnostic functions e Diagnostic information readable Time intervals Wirebreak detection Yes parameterizable Yes parameterizable Yes parameterizable Yes Yes parameterizable Parameterizable per software at measuring range 4 to 20mA Data for Selecting a Sensor Input ranges nominal val ues input resistance e Voltage Current Permissible input voltage for voltage input destruction limit Permissible input current for current input destruction limit Connection of signal sensors e for voltage measurement e for current measurement as 4 wire transducer Temperature compensation C7 62
63. mity proce dure The EN 60204 1 standard Safety of Machinery Electrical Equipment of Ma chines Part 1 Specification for General Requirements applies for electrical equipment of machinery The table below is designed to help you with the delcaration of coformity and to show which criteria apply to SIMATIC according to EN 60204 1 as at June 1993 dance with the installation guidelines Please observe the explanations on the previous pages Paragraph 12 3 Paragraph 20 4 Programmable equipment Requirements are met if the devices for protection of memory con tents against change by unauthorized persons are installed in locked cabinets Voltage tests Requirements are met C7 623 C7 624 Control Systems C79000 G7076 C623 01 General Technical Specifications A 4 Transport and Storage Conditions for Backup Batteries Transport of Backup Batteries Storage of Backup Batteries ZN Rules for the Handling and Use of Backup Batteries Transport backup batteries where possible in their original packaging Ob serve the regulations for the transport of dangerous goods and substances The backup battery contains approximately 0 25 g of lithium Note According to air freight transport regulations the backup battery is in Hazardous Goods Class 9 Store backup batteries in a cool dry place Backup batteries can be stored for up to 5 years Warning Backup batteries can ignite or explode
64. n MPI Network i i igure 3 3 shows you where to connect the terminating resistance on the Terminatin Figure 3 3 shows you where t t the t ting t the RS Resistance On RS 485 repeater 485 Repeater DC L m Pemsa 274 EeES6e S 09998 A1B1A1B z Terminating ci resistance Bus segment 1 LEIN on M Terminating SIEMENS resistance RS 485 REPEATER Bus segment 2 A2B2A2B2 09998 S I_B im Figure 3 3 Terminating Resistance on the RS 485 Repeater Example of Using a possible MPI network configuration Figure 3 4 shows where you Terminating must connect the terminating resistance Resistance in MPI Network C7 PG oQ 7 300 7 300 7 300 Fy yy oP ET G RS485 O opa f J BAA EE a fl repeater Spur line PG Only connected via spur line at startup or during service work Terminating resistance switched on Figure 3 4 Switching Terminating Resistances into an MPI Network C7 623 C7 624 Control Systems 3 6 C79000 G7076 C623 01 Configuring an MPI Network Example for an Figure 3 5 shows t
65. n assignments 2 10 Plug and socket connectors View 2 10 Printer Printer cable Printer connection PROFIBUS bus cable Characteristics Rules for cable laying 3 11 to bus connector PROFIBUS bus terminal Programming device 1 5 Programming device Epa R Remote segment 3 8 3 9 RS 485 repeater 1 5 3 10 Terminating resistance Using RUN S S7 300 CPU S7 400 CPU Setup guidelines SF Shield Shielding clips 2 18 C7 623 C7 624 Control Systems C79000 G7076 C623 01 Signal modules 1 4 Spur lines EE Status ee my STO 5 3 STOP 2 Storage ae batteries Surge impedance Siehe Abschluiwiderstand T Terminating resistance Example B 6 on bus connector on RS 485 repeater Set at the bus connector Transducer Isolated Non isolated U Universal inputs Parameterizing Pin assignments Technical specifications V V24 Voltage measurement Voltage transducer 6 3 Connection 6 6 W Wire break check Analog input module SM 331 AI 8 6 10 Index 3 C7 623 C7 624 Control Systems C79000 G7076 C623 01 Q ox Siemens AG AUT E 146 Ostliche Rheinbriickenstr 50 D 76181 Karlsruhe Federal Republic of Germany From Your Name Your Title Company Name Street City Zip Code Country Phone Please check any industry that applies to you Automotive Chemical Electrical Mac
66. n from the IM360 to the IM361 of the first rack expan sion via 368 connecting cable e Maximum distance between IM360 and IM361 10m You can expand your C7 by up to 3 mounting racks using the IM360 inter face module C7 623 C7 624 Control Systems 2 20 C79000 G7076 C623 01 Installing and Preparing the C7 a EIET Slot number IM 361 3 4 5 6 7 8 9 10 11 368 connecting cable O Modules Slot number IM 361 3 4 5 6 7 8 9 10 11 368 connecting cable z Modules Slot number IM 361 3 4 5 6 7 8 9 10 11 368 connecting cable 0 a Customer specific module Slotnumber 2 3 4 5 6 H Figure 2 12 Maximum Configuration of the Slots of a C7 C7 623 C7 624 Control Systems C79000 G7076 C623
67. n tested This Chapter Section Contents Technical Specifications A 2 Notes on the CE Marking A 5 A 3 Notes for the Machine Manufacturer A 6 A4 Transport and Storage Conditions for Backup Bat A 7 teries C7 623 C7 624 Control Systems C79000 G7076 C623 01 A 1 General Technical Specifications A 1 Technical Specifications The table contains the technical specifications of the overall unit The data for the I O can be found in the relevant chapters Table A 1 Technical Specifications of the C7 Criterion C7 623 C7 624 Technical Specifications Order number C7 623 6ES7623 1AE00 0AE3 C7 624 6ES7624 1AE00 0AE3 Dimensions 240 x 168 x 60 mm H x W x D Weight C7 623 1350g C7 624 1390g C7 623 display STN LC display 4 lines of 20 characters each 5mm character heght LED backlit C7 624 display STN LC display 4 x 20 characters 8 mm character height or 8 x 40 charac ters 4 5 mm character height LED backlit Keypad Membrane keypad with metal domes C7 623 44 keys C7 624 48 keys 26 integral LEDs Serial interface V 24 printer MPI Standard MPI Backup battery Backup time approx 1 year C7 OP Flash memory configuring memory C7 623 128 Kbytes C7 624 256 Kbytes Work memory 128 Kbytes Power supply Supply voltage Un 24V DC 20 4 to 30 2V DC safety low voltage The C7 623 and C7 624 has no internal protecti
68. nating Resistance Terminating Resistance On Bus Connector The MPI addresses set at the factory should not be assigned as fixed node addresses since otherwise address conflicts double MPI addresses can arise when devices are replaced or the network is expanded e Reserve the MPI address 0 for a service PG e Reserve the address 1 for the C7 OP e Reserve the address 2 for the C7 CPU This avoids double assignment of MPI addresses after installing a further preset C7 or S7 300 in the MPI network for example when replacing a C7 You connect the individual nodes via the bus connectors and the PROFIBUS bus cable Remember to provide for the nodes a bus connector with PG socket to which a PG can be connected if required see also Use the RS 485 repeater for connections between segments or for extending cables See the reference manual 71 for details of how to install and use a repeater A cable must be terminated with a surge impedance For this purpose switch on the terminating resistance at the first and last node of the network At least one of these two nodes must be supplied with power Figure 3 2 shows you where to connect the terminating resistance on the bus connector Terminating Terminating resistance resistance switched on switched off Figure 3 2 Terminating Resistance on the Bus Connector C7 623 C7 624 Control Systems C79000 G7076 C623 01 3 5 Configuring a
69. nd the highest MPI address to each node with the exception of the RS 485 repeater Tip Mark all nodes in an MPI network with the MPI address on their housings In this way you can always see which node has been assigned which MPI address in your system e Connect all nodes in the MPI network as shown in that is integrate the stationary programming devices and OPs direct in the MPI network Connect only those programming devices OPs that are required for startup or maintenance via spur lines to the MPI network e If you are operating more than 32 nodes in a network you must link the bus segments via RS 485 repeaters e Ungrounded bus segments and grounded bus segments are connected via RS 485 repeaters e Each RS 485 repeater used reduces the maximum number of nodes per bus segment This means if there is an RS 485 repeater in a bus segment there can then only be a maximum of 31 further nodes in the bus segment The number of RS 485 repeaters has no effect on the maximum number of nodes on the bus There can be up to 10 segments in one row e Switch the terminating resistance on at the geographical end point of the MPI network see Section 3 3 e Before you insert a new node into the MPI network you must switch off its supply voltage C7 623 C7 624 Control Systems C79000 G7076 C623 01 Configuring an MPI Network Recommendation for MPI Addresses in the Network Components Using the RS 485 Repeater Termi
70. ndent of the clock in the C7 CPU The clock is supplied with the following value set 01 01 94 00 00 The clock time e Can be set during configuration for example it is loaded from C7 CPU data e Can be read on line by operator input if the special display Clock time Date has been configured and selected see Volume 2 Section 6 7 1 C7 623 C7 624 Control Systems C79000 G7076 C623 01 Installing and Preparing the C7 Operating Hours Counter The C7 CPU provides you with an operating hours counter You can use this to keep count of the operating hours of the C7 CPU or of any controlled equipment You program the operating hours counter in the user program with the SFCs 2 SET_RTM 3 CTRL_RTM and 4 READ RTM see the reference manual 235 C7 623 C7 624 Control Systems C79000 G7076 C623 01 2 23 Installing and Preparing the C7 2 11 Starting Up a C7 Clearing the C7 OP Clearing the C7 CPU Clearing the C7 CPU with the System Function 2 24 The C7 must be switched off Proceed as follows when clearing the C7 OP section cS e Press and hold the keys V gt ae simultaneously e Switch on the power supply to the C7 The C7 OP section is now cleared that is the C7 OP has been reinitialized and the entire configuration has been deleted Clearing the C7 CPU means reinitializing the C7 CPU deleting the current control program and reloading any
71. ne Mana Reference potential of the analog measuring circuit Figure 6 3 shows the connection of voltage transducers to an isolated analog input Alx U O Alx M 7 F Alx U ADU MF JLo Q AbeM i gic C7 CPU Mana Figure 6 3 Connecting Voltage Transducers to an Isolated Analog Input 4 wire transducers possess a separate voltage supply Figure 6 4 shows the connection of current transducers as 4 wire transducers to a non isolated ana log input module Transducers e g pressure gauges Alx U no P ee Alx M See Alx U ADU jlo P 3 gic C7 CPU Sc Alx M f l MANA M Figure 6 4 Connecting 4 Wire Transducers to a Non Isolated Analog Input Module C7 623 C7 624 Control Systems C79000 G7076 C623 01 C7 Analog Input Output 6 3 Connecting Loads Actuators to the Analog Output Overview Cables for Analog Signals Isolated Analog Output Abbreviations and Mnemonics You can provide loads actuators with current or voltage using the analog out put To reduce electrical interference you should use twisted pair shielded cables for the analog signals The shield of the analog signal cables should be grounded at both cable ends If there are potential differences between the cable ends an equipotential bonding current can flow over the shield This can interfere with
72. nge the backup battery during POWER ON This pre vents any data loss in the internal user memory during battery change Note The data in the internal user memory will be lost if you change the battery during POWER OFF Change the battery during POWER ON only Proceed as follows to change the backup battery Unscrew the cover of the C7 battery compartment see Figure 8 1 Lift the cover up and to the right s ee Figure 8 2 Make sure you raise the cover only as far as the battery connections allow Remove the battery connector of the old backup battery Loosen the cable binders with which the backup battery is attached to the cover see Figure 8 3 Attach the new backup battery with the cable binders to the cover Plug the battery connector of the new backup battery into the relevant socket in the battery compartment of the C7 The notch on the battery connector must point to the left seq Figure 8 3 7 Close the battery cover with the springs to the left onto the C7 and screw the cover tight again Note Do not touch any interior components of the C7 with your hands or a metal part screwdriver Electrical components and PCB are not sufficiently pro tected for this purpose Please observe ESD guidelines C7 623 C7 624 Control Systems C79000 G7076 C623 01 Maintenance Battery cover Cable binder Figure 8 1 Battery Cover Before Opening Figure 8 2 Bat
73. nnectors vent a connector from being confused with another without polarity reversal Proceed as follows 1 Insert the solid coding key into the notches provided on the connector part 2 Insert the profiled coding key into the respective cutouts on the housing part 8 Solid and profiled coding keys that face each other prevent the connector from being plugged in The connector can be plugged in if solid and profiled coding keys do not face each other Figure 2 11 How to Key Connectors C7 623 C7 624 Control Systems C79000 G7076 C623 01 2 19 Installing and Preparing the C7 2 9 Arrangement of Additional S7 300 Modules Additional S7 300 You can connect further S7 300 modules to the C7 via the IM360 interface of Modules the C7 The manual 30 describes how to install S7 300 modules Prerequisite An IM 361 module of the S7 300 system must be connected to the C7 Connecting the You connect the additional I O as follows Additional I O 1 Install the additional I O as described for racks 1 to 3 in the manual 70 2 Connect the C7 to the IM361 via the IM standard cable see also Figure 2 8 for connecting the C7 When the C7 is first started up it detects the additional connected modules IM 360 Interface The C7 has an integral IM360 interface module for I O expansion with exter Module nal S7 standard I O This interface module is characterized by the following features e Data transmissio
74. nput 1 0 2 10 2 Digital input 2 0 3 10 3 0 4 10 4 Digital input 4 0 5 10 5 Digital input 5 0 6 10 6 0 7 10 7 1 0 11 0 1 1 I1 1 C7 623 C7 624 Control Systems 2 10 C79000 G7076 C623 01 Installing and Preparing the C7 Table 2 1 Pin Assignments of the Digital Inputs 1 2 11 2 Digital input 10 1 3 11 3 Digital input 11 1 4 1 4 Digital input 12 1 5 11 5 Digital input 13 1 6 11 6 Digital input 14 Digital Outputs Table 2 2 Pin Assignments of the Digital Outputs Pin No Signal Explanation 00 Q00 Digital output 0 0 1 Q0 1 Digital output 1 ere 2 Q0 2 Digital output 2 ECE 4 Digital output 4 Q0 5 Digital output 5 Digital output 10 Digital output 11 Q1 4 Digital output 12 Q1 5 Digital output 13 Digital output 14 C7 623 C7 624 Control Systems C79000 G7076 C623 01 2 11 Installing and Preparing the C7 Analog Inputs Outputs Table 2 3 Pin No AI1 U Pin Assignments of the Analog Inputs Outputs Explanation Analog input 1 signal input for voltage All I AI1 M AI2 U Analog input 1 signal input for current Analog input 1 reference potential Analog input 2 signal input for voltage AI2 I AI2 M AI3 U Analog input 2 signal input for current Analog input 2 reference potential Analog input 3 signal input for voltage AI3 I AI3 M AI4 U AI4 I AI4 M Mana AO U AO I Analog input 3 signal input for current Analog outpu
75. nts of a C7 Components Function Illustration Interface module IM361 connects a C7 with an expan sion rack for S7 300 modules Signal modules SMs pass different process signal digital input modules levels on to the C7 CPU They digital output modules can be connected via an IM361 analog input module analog output module analog input output modules Function modules FMs for time critical and memory intensive process signal hand ling tasks for example positio ning or closed loop control Communications processors offloads the CPU of commu CP nications tasks for example CP 342 5 DP for linking to SINEC L2 DP S7 300 CPU communicates over the MPI with the C7 and with other nodes on an MPI network 0 C7 623 C7 624 Control Systems 1 4 C79000 G7076 C623 01 Product Overview Table 1 1 Connectable Components of a C7 Components Function Illustration S7 400 CPU communicates over the MPI with the C7 and with other nodes on an MPI network OP Operator Panel executes operator interface functions PROFIBUS bus cable with bus connects nodes on an MPI net connector work o
76. of safety extra low voltage SELV Warning Personal injury and damage to property can occur If you do not provide the correct 24 V DC power supply for your C7 623 and C7 624 this may result in damage to components of your programmable con troller and personal injury Use only safety extra low voltage SELV for the 24 V DC power supply to your C7 623 and C7 624 The following markings are used to show the relevant approval Underwriters Laboratories UL to UL 508 standard A UL Recognition Mark G Canadian Standard Association CSA to standard C 22 2 No 142 lt EM gt FM Standards No 3611 3600 3810 APPROVED for use in Class I Division 2 Group A B C D indoor hazardous APPROVED locations C7 623 C7 624 Control Systems C79000 G7076 C623 01 General Technical Specifications A 2 Notes on the CE Marking EC EMV Directive Products bearing the CE marking meet the requirements of the EU directive 89 336 EEC 89 336 EEC Electromagnetic Compatibility Ce In accordance with the above mentioned EU directive Article 10 1 the EU declarations of conformity and the relevant documentation are held at the dis posal of the competent authorities at the address below Siemens Aktiengesellschaft Bereich Automatisierungstechnik AUTE 14 Postfach 1963 D 92209 Amberg Federal Republic of Germany Area of The product has been designed for use in the following areas in accordance Application with it
77. ogramming E device cable Programming Device PC Figure 4 1 Connecting a Programming Device PC to a C7 C7 623 C7 624 Control Systems C79000 G7076 C623 01 Connecting a Programming Device PC to a C7 4 2 Connecting a Programming Device PC to Several Nodes Possibilities This chapter shows you how to connect a programming device or PC to sev eral networked nodes via the MPI Two Installation When you connect a programming device PC to several nodes you must dif Variants ferentiate between two installation variants e Fixed installation of the programming device PC in the MPI network e Programming device PC connected for startup and maintenance purposes Depending on this you connect the programming device PC with the other nodes as follows see alsq Section 3 2 Installation Variant Connection Fixed installation of the program The programming device PC is ming device PC in the MPI network linked direct into the MPI network Programming device PC connected The programming device PC is con for startup and maintenance pur nected to one node via a spur line poses C7 623 C7 624 Control Systems C79000 G7076 C623 01 4 3 Connecting a Programming Device PC to a C7 With fixed installation of a programming device PC in the MPI network you connect the programming device PC via a bus connector direct with the other nodes of the MPI network in accordance with the
78. oints To pre vent these potential differences you must provide equipotential bonding con ductors between the measured value points In addition potential differences Ucy static or dynamic can arise between the measuring lines AIx M of the input channels and the reference point of the measuring circuit Mana However these potential differences must not exceed the permitted value Where it is possible that the permissible value for Ucm might be exceeded or where you cannot determine the difference in potential accurately you must connect AIx M to Mana Figure 6 2 shows the principle of connecting non isolated transducers to an isolated analog input module Alx X Non isolated Alx M transducers m Alx X ADU Lo lt AM _ gic C7CPU U OM Mana C7 Uiso A om CF 2 IM a Ground bus Figure 6 2 Connection of Non Isolated Transducers to an Analog Input Module C7 623 C7 624 Control Systems C79000 G7076 C623 01 6 5 C7 Analog Input Output 6 2 1 Connecting Voltage and Current Transducers Abbreviations and Mnemonics Connecting Voltage Transducers Connecting Current Transducers as 4 Wire Transducers 6 6 The abbreviations and mnemonics used in Figures 6 3 to 6 4 have the follow ing meanings AIx X Measuring line AIx I or AIx U AIx M Reference potential of the measuring li
79. on against high energy surge pulses in the us range e Polarized input voltage Yes connection e Voltage interruption 20ms can be jumpered Current consumption In 2400 mA max Safety Standardization DIN EN 61131 22 IEC 1131 2 Electromagnetic compatibility EMC Emitted interference Limit value class A 2 B in accordance with EN 55022 CISPR 22 C7 623 C7 624 Control Systems C79000 G7076 C623 01 General Technical Specifications Table A 1 Technical Specifications of the C7 Conducted interference on AC 2kV in accordance with IEC 801 4 IEC 1000 44 burst voltage supply lines 1kV in accordance with IEC 801 5 IEC 1000 4 5 us pulse line to line 2kV in accordance with IEC 801 5 IEC 1000 4 5 us pulse line to ground Noise immunity on signal lines 2kV in accordance with IEC 801 4 IEC 1000 4 4 burst Noise immunity against discharge 6kV discharge on contact in accordance with IEC 801 2 IEC 1000 4 2 ESD 8kV atmospheric discharge in accordance with IEC 801 2 IEC 1000 4 2 ESD Immunity to high frequency 10V m with 80 amplitude modulation with 1kHz radiation 10kHz 80MHz in accordance with EN 50 141 10V m with 80 amplitude modulation with 1kHz 80kHz 1GHz in accordance with EN 50 140 10V m pulse modulated 50 c d f with 900 MHz to EN 50 140 Climatic conditions Temperature Tested in accordance with DIN IEC 68 2 1
80. on possibilities are open to you with an MPI network To which components you connect the nodes of an MPI network Which cable lengths you can implement How you can connect the PROFIBUS bus cable to the bus connector How to use an RS 485 repeater What to remember when connecting a programming device You must assign MPI addresses to the individual nodes of an MPI network in order to enable them to communicate with each other How you assign the MPI addresses and what rules you must observe are described in the user manual 231 In Volume 2 of the manual Section 3 4 10 you will find all C7 CPU specific data that you require for configuring communication 3 1 Communication Over the MPI Rules for Configuring an MPI Network Bal usGomecon Bl 3 5 1 Bus Connectors 6ES7 972 0B 20 OXA0 3 13 3 3a Rework Compaen OTT 351 3 4 3 13 Bus Connectors 6ES7 972 0B 10 0XA0 B 16 i 18 Plugging the Bus Connector into the Module 3 18 3 1 Configuring an MPI Network 3 1 Communication Over the MPI Definition Multipoint Interface MPI Baud Rate Connectable Devices Device Node Segment Number of Nodes MPI Addresses 3 2 The interface of the C7 for connecting for example programming devices is called multipoint interface since several devices can communicate with the C7 over this interface that is communication can take place from several points The baud rate of the
81. ontrollers PLCs are electronic controllers whose function is stored as a program in the CPU The design and wiring of these devices therefore does not depend on the controller function The programmable con troller has the structure of a computer it consists of a CPU with memory inputs and outputs and an internal bus system The I O and the programming language are designed specifically for the requirements of control engineer ing Programming devices are essentially personal computers that are compact and portable and suitable for use in industry They are characterized by being equipped with special hardware and software for SIMATIC programmable controllers Random access memory is a read write memory in which each memory cell can be addressed individually and can be changed RAM memories are used as data memories and program memories Ground Potential from which the voltages of the connected circuits are considered and or measured C7 623 C7 624 Control Systems C79000 G7076 C623 01 Glossary S Signal Module STEP 7 STEP 7 Tool Substitute Value System Diagnostics System Memory T Time Delay Interrupt Timed Interrupt Time of Day Interrupt Signal modules C7 I O form the interface between the process and the C7 There are digital input and output modules and analog input and output mod ules Programming software for creating user programs for SIMATIC S7 program mable controllers A S
82. oof Installa 2 1 tion 3 a 29 Arangenencof Additional 57300 Mois a Pa fern Starting Up a C7 i 2 g 22 eusa a EDsone CTT C7 623 C7 624 Control Systems C79000 G7076 C623 01 2 1 Installing and Preparing the C7 2 1 Scope of Supply and C7 Accessories Parts Supplied Accessories 2 2 The following components are included in the scope of supply of the C7 623 or C7 624 C7 623 or C7 624 A set of labeling strips for function keys and softkeys Battery A ground bar 6 shielding clips 1 seal and 4 brackets Product Information if required The following components can be ordered as C7 specific accessories C7 623 C7 624 Control Systems manual comprising two volumes in the languages German 6ES7 623 1 AE00 8AA0 English 6ES7 623 1AE00 8BA0 French 6ES7 623 1 AE00 8CA0 Italian 6ES7 623 1 AE00 8DAO Spanish 6ES7 623 1AE00 8EA0 Labeling strips for function keys and softkeys 6ES7 623 1 AE00 1AA00 Service package seal and 4 brackets 6ES 623 1AE00 3AA00 Plug connectors for C7 I O with coding keys and coding sliders 6ES7 623 1AE00 4AA0 Backup battery 6ES 623 1AE00 5AA00 The following components can be ordered as important standard accessories for the C7 Programming device cable 6ES7 901 OBF00 0AAO for connecting the C7 to the PG PC MPI cable 5 m 6ES7 901 2BF00 OAA0 IM cable for connecting additional S7 300 IM cable 1 m 6ES7 368 3BB00 0AA0 IM cable 2 5 m 6ES7 368 3BC51 0OAA0 I
83. or parallel over electrical conductors or fiber optic cable The C7 620 complete system comprises a S7 300 CPU a COROS OP I O and an IM 360 interface module all integrated in one unit The C7 CPU central processing unit contains the controller and arithmetic unit memory operating system and programming ports The C7 CPU is de pendent on the C7 OP The C7 CPU has its own MPI address and is con nected with the C7 OP via the MPI The C7 I O signal module forms the interface between the process and the programmable controller It provides digital input and output signals as well as analog input and output signals The integral universal inputs have special functions in the C7 interrupt counter inputs C7 623 C7 624 Control Systems C79000 G7076 C623 01 Glossary C7 OP Chassis Ground Communications Processor Complete Restart Configuration Configuration Memory CP Cycle Time D Diagnostics Diagnostics Buffer The C7 OP handles the OP functions of the C7 It is independent of the gt C7 CPU and continues to operate if for example the C7 CPU goes to the STOP mode The C7 OP has its own MPI address and is connected to the C7 CPU via the MPI Chassis ground is the totality of all connected inactive parts of an operating resource that cannot carry a hazardous touch voltage even in the event of a fault Communications processors are modules for point to point links and for bus links W
84. programming with programming examples Using block call operations Overview of the usage of the STEP 7 tools for developing projects with detailed examples Using the test and diagnostics functions of the CPUs in the user program for example error OBs status word S7 300 Programmable Describes the hardware of the S7 300 ae tgs p Electrical configuration of the S7 300 Ste H PO A E PT EN S Installing the 7 300 Wiring and preparing the S7 300 for operation Characteristics and technical data of the S7 300 modules S7 300 M7 300 Describes the hardware of the S7 300 modules Programmable Controllers Module Specifications Reference Manual Analog modules Digital modules Interface modules Characteristics and technical specifications of the S7 300 modules S7 300 Programmable Con Describes the instruction set of the CPU 312 CPU 314 CPU 315 and CPU 315 DP troller CPU 312 CPU 314 including the execution times of all operations CPU 315 CPU 315 DP Instruction List C7 623 C7 624 Control Systems vi C79000 G7076 C623 01 Preface Table 1 2 Further Manuals Describes the programming device PG hardware e Assembly and startup of the PG e Expansion possibilities e Configuring e Fault diagnostics COROS Manual for creating configurations ProTool e Using ProTool e Configuring e Displays and messages Loading the configuration into the C7 COROS Manual for creating configurations
85. r L2 DP network with each other Programming device cable connects a PG PC with a C7 Printer prints out MMI messages of the C7 Programming device PG or PC configures parameterizes with the STEP 7 and ProTool programs and tests the C7 software packages RS 485 repeater for amplifying the signals in an MPI network or L2 DP net work and for linking segments of an MPI or L2 DP network C7 623 C7 624 Control Systems C79000 G7076 C623 01 1 5 Product Overview Example Figure 1 3 shows some possible connections to other devices and the connec tion of signal inputs OP 25 TE a REE EE 57 300 EER 586 Ele modules 0000 Qoo00000 gob 00000000 Analog inputs outputs 2 ES Universal inputs Printer Digital inputs outputs Figure 1 3 Some C7 Connection Possibilities C7 623 C7 624 Control Systems 1 6 C79000 G7076 C623 01 Installing and Preparing the C7 This Chapter 2 4 Arranging the C7 in the Mechanical Environ ment 25 Electrical Installation 2 10 Setup Guidelines for Interference Pr
86. rating ground isolated from the central grounding point of the cabinet surface grounding with housing construction reinforcement C7 623 C7 624 Control Systems C79000 G7076 C623 01 2 17 Installing and Preparing the C7 2 7 Connecting Shielded Cables Overview Procedure 2 18 This section describes how to connect the shield of shielded signal lines to ground The ground connection is made by directly connecting the shield with the ground terminal of the C7 Proceed as follows to install the grounding bar and shielding clips supplied with the C7 1 Unfasten the two screws on the C7 as shown in Figure 2 10 2 Position the grounding bar as shown in Figure 2 10 and fix this in place with the previously removed screw 3 Affix the shielding clips to the grounding bar as shown in Figure 2 10 4 Press the insulated cable into these shielding clips in such a way as to achieve optimal contact of the cable shield Shielding clip NN Scale 1 1 tae Figure 2 10 C7 with Grounding Bar and Shielding Clips C7 623 C7 624 Control Systems C79000 G7076 C623 01 Installing and Preparing the C7 2 8 Keying Connectors Overview A set of connectors with solid and profiled coding keys can be ordered as C7 accessories se d Section 2 1 under Accessories The keying of connectors will be described in the following Keying The solid coding keys and profiled coding keys see Figure 2 11 pre Co
87. rating temperature 30 C to 65 C 3 11 Configuring an MPI Network 3 5 Bus Connectors Purpose of the The bus connector is used for connecting the PROFIBUS bus cable to the Bus Connector MPI This is how the connection to further nodes is established There are two different bus connectors e Up to 12 Mbaud Without heavy gauge threaded joint 6ES7 972 OBA10 0XA0 With heavy gauge threaded joint 6ES7 972 0BB10 0XA0 e Upto 12 Mbaud optionally with vertical or angular outgoing cable Without heavy gauge threaded joint 6ES7 972 OBA20 0XA0 With heavy gauge threaded joint 6ES7 972 OBB20 0XA0 No Application The bus connectors are not required for the RS 485 repeater C7 623 C7 624 Control Systems 3 12 C79000 G7076 C623 01 Configuring an MPI Network 3 5 1 Bus Connectors 6ES7 972 0B 20 0XA0 Design Figure 3 8 shows the bus connector 6ES7 972 0B 20 6ES7 972 0B 20 Screws for fixing at station Switch for terminating resistance Programming device socket only with 6ES7 972 0BB20 0XA0 D 9 pin sub D connector for connection to station Housing screw Clamp type hinge for vertical or 30 outgoing cable Figure 3 8 Design of Bus Connector 6ES7 972 0B 20 Mounting the Bus Connect the bus cable to the bus
88. ries When calculating the total number of nodes to be connected please note that an RS 485 repeater counts as a node of the MPI network even if it has not been assigned its own MPI number Figure 3 6 illustrates the principle of cable extension with RS 485 repeat ers for the MPI 000 m 0000 ooo O40 OOOOOOOO dob OOoO00o000 Ovo C7 RS 485 repeater 1000 m 50 m Remote segment wee PROFIBUS bus cable 50m Figure 3 6 Maximum Cable Length Between Two RS 485 Repeaters Spur Lines Spur lines are cables with which you can connect programming devices or OPs to a network for startup or service purposes Spur lines should be as short as possible They are restricted in their length and number Thefollowing Table shows the maximum permissible lengths of spur lines in a segment Table 3 1 Maximum Permissible Length of Spur Lines in a Segment Baud Rate Max Perm Number of Nodes for a Spur Length of Spur Line Length of Lines in Segment 1 5 m or 1 6m 187 5 kbaud 75 m 32 25 C7 623 C7 624 Control Systems 3 8 C79000 G7076 C623 01 Configuring an MPI Network Example Figure 3 7 shows a possible MPI network configuration The example indi cates the maximum possible distances in an MPI network
89. rrupts such as process interrupts belong to these priority classes When an interrupt occurs the op erating system automatically calls an assigned organization block in which the user can program the desired response for example in an FB In isolated input output modules the reference potentials of the control cir cuit and the load circuit are galvanically isolated by for example optocoup lers relay contactors or transformers Input output circuits can be connected to common potential C7 623 C7 624 Control Systems C79000 G7076 C623 01 Glossary 5 Glossary Load Memory Memory Reset MPI MPI Network Glossary 6 The load memory is a component part of the C7 CPU It contains objects load objects created by the programming device It is implemented as a fixed integrated memory When clearing the C7 CPU the following memories are deleted e The work memory e The read write memory area of the gt load memory e The system memory e The backup memory and the user program is reloaded from the flash memory When clearing the gt C7 OP the following memories are deleted e The work memory e The configuration memory The C7 OP then does not contain a user configuration The multipoint interface MPI is the programming device port of SIMATIC S7 It enables simultaneous operation of several nodes programming de vices text displays operator panels on one or several CPUs The
90. rules listed i Figure 4 2 shows a C7 network with two C7s Both C7s are connected to each other over the PROFIBUS bus cable 000 OOO 0000 OA OO0000000 o0000000 Ovo C7 Fixed Installation of Programming Device PC Programming device PC PROFIBUS bus cable oooO 0000 ooo OAO OOOOOOOOH lt 00 oo000000 ovo C7 PROFIBUS bus cable Figure 4 2 Connecting a Programming Device to Several C7s Connecting the If there is no stationary programming device PC available we recommend Programming the following Device PC for In order to connect a programming device PC for service purposes to an MPI Service Purposes E a es network with unknown node addresses we recommend that you set the following address on the service programming device PC e MPI address 0 e Highest MPI address 126 Then find out the highest MPI address in the MPI network via S7 Configura tion and adjust the highest MPI address on the programming device PC to suit that of the MPI network C7 623 C7 624 Control Systems C79000 G7076 C623 01 4 4 Connecting a Programming Device PC to a C7 Programming For startup or maintenance purposes connect the programming device PC Device PC for via a spur line to a node of the MPI network
91. s CE marking Area of Application Requirements Emitted Interference Immunity Industrial and Office area EN 50081 2 1993 EN 50082 2 1995 Household business and trade area small plants EN 50081 1 1992 EN 50082 1 1992 Observing the The installation guidelines and safety instructions described in the manual must Installation be observed when installing and operating the device Guidelines C7 623 C7 624 Control Systems C79000 G7076 C623 01 A 5 General Technical Specifications A 3 Notes for the Machine Manufacturer Introduction EU Machinery Directive 89 392 EEC Electrical Equipment of Machinery in Accordance with EN 60204 EN 60204 1 Paragraph 4 Paragraph 11 2 Digital input output interfa Requirements are met ces Subject Criterion Remarks General requirements Requirements are met if the devices are mounted installed in accor The SIMATIC programmable controller system is not a machine as defined in the EU Machinery Directive There is therefore no declaration of conformity for SIMATIC with regard to the EU Machinery Directive 89 392 EEC The EU Machinery Directive 89 392 EEC regulates requirements relating to machinery A machine is defined here as an assembly of linked parts or compo nents see also EN 292 1 Paragraph 3 1 SIMATIC is part of the electrical equipment of a machine and must therefore be included by the machine manufacturer in the declaration of confor
92. s up 4 Select the MRES memory reset or clear function and wait until the STOP LED lights up again approximately 3 seconds Result The STOP indicator goes out and then lights up again after approximately 3 seconds 5 Immediately after the STOP indicator lights up again Select STOP with the relevant function keys and then initiate MRES again Result Ifthe STOP indicator blinks for approximately 3 seconds and then lights up again everything is OK the C7 CPU has been cleared Ifthe STOP indicator of the C7 does not blink or other indicators light up or blink exception BAF indicator repeat steps 4 and 5 if neces sary evaluate the diagnostics buffer of the C7 using the programming device Ifthe BAF and SF indicators on the C7 light up the backup battery is missing If a battery is nevertheless inserted you must look for addi tional error entries in the diagnostics buffer of the C7 6 After a memory reset you must explicitly set the C7 CPU to STOP or RUN RUNP since the C7 CPU is still set to MRES C7 623 C7 624 Control Systems 2 26 C79000 G7076 C623 01 Installing and Preparing the C7 2 12 Status and Fault LEDs on the C7 Status and Fault The C7 623 C7 624 has the following status and fault LEDs LEDs SF a DCS E RUN BAF COOIFRCE STOP Figure 2 15 Status and Fault LEDs of the C7 623 C7 624 Meaning of the The status and fault LEDs are explained in the order in which t
93. t organization block is then executed C7 623 C7 624 Control Systems C79000 G7076 C623 01 Glossary 9 Glossary Tool Total Current U Ungrounded User Memory User Program V Varistor W Work Memory Glossary 10 STEP 7 tool Sum of the currents of all output channels of a digital output module Without galvanic connection to gt ground The user memory contains the code and data blocks of the user program The user memory is integrated into the C7 CPU as a flash memory However the user program is executed in the gt work memory of the C7 CPU The user program contains all the statements and declarations as well as data for signal processing by which a plant or process can be controlled It is as signed to a programmable module for example C7 CPU FM and can be structured in smaller units blocks Voltage dependent resistor The work memory is a RAM in the gt C7 620 that the processor uses to ac cess the user program during program execution C7 623 C7 624 Control Systems C79000 G7076 C623 01 Index Figures 24 VDC input 2 14 368 connecting cable 4 wire transducer Connection Measuring ranges A Accessories Analog input Isolated measuring ranges Analog input function Technical specifications Analog input module Characteristics 6 11 Technical specifications Terminal connection diagram Analog input module SM 331 AI 8 Wire break check
94. t signal output for current AO M Analog output reference potential AUX Digital Inputs Universal Inputs Table 2 4 Pin No M Pin Assignments of the Universal Inputs Explanation Relevant ground DI X1 DI X2 DI X3 Universal input 1 digital input interrupt input or counter input Universal input 2 digital input interrupt input or counter input Universal input 3 digital input interrupt frequency or period duration counter input DI X4 Universal input 4 interrupt input or digital input Not connected Not connected 2 12 Not connected C7 623 C7 624 Control Systems C79000 G7076 C623 01 Installing and Preparing the C7 DI DO 24 VDC Power Supply Table 2 5 Pin Assignments of the Power Supply DI DO Explanation 24 volt supply for DI 0 0 1 7 Relevant ground for DI 0 0 1 7 24 volt supply for DQ0 0 DQ0 7 approx 2 A 24 volt supply for DQ0 0 DQ0 7 approx 2 A Relevant ground for DQO 0 DQ0 7 24 volt supply fiir DQ1 0 DQ1 7 approx 2 A 24 volt supply for DQ1 0 DQ1 7 approx 2 A 3M Relevant ground for DQ1 0 DQ1 7 V 24 Serial Interface st Z oO Y a Pin Assignments for the V 24 Serial Interface e g for Printer Pin No Explanation C7 M reference potential RxD TxD CTS C7 M reference potential 1 i Oo z n 12 C7 M reference potential 1 it jai ww 1 1 15 C
95. t green wire to terminal A and red wire to terminal B Bus cable connection for first Bus cable connection for all and last station on the bus other stations on the bus h W og Ww 1 The bus cable can either be connected right or left Figure 3 10Connecting the Bus Cable at the Bus Connector 6ES7 972 0B 20 6 Screw tight the clamp type hinge cover Make sure that the shielding is bare under the screw type terminal 7 Tighten the green and red wires in the screw type terminal 8 Close the cover of the bus connector and 9 Screw down the housing C7 623 C7 624 Control Systems C79000 G7076 C623 01 3 15 Configuring an MPI Network 3 5 2 Bus Connectors 6ES7 972 0B 10 0XA0 Appearance Table 3 6 shows the bus connectors 6ES7 972 0B 10 OXA0 Table 3 6 Description and Function of the Bus Connectors 6ES7 972 0B 10 OXAO Appearance of the Bus Connectors Function with heavy gauge threaded joint without heavy gauge threaded joint Connection to the MPI SIEMENS 2 SIEMENS P PROFIBUS DP SIEMENS Vag interface 9 p
96. tery Cover C7 623 C7 624 Control Systems C79000 G7076 C623 01 8 3 Maintenance Figure 8 3 Inserting the Backup Battery How Often Should We recommend that you change the battery every year You Change the Battery Disposal Please observe national regulations guidelines concerning the disposal of backup batteries Storage of Backup Store backup batteries in a cool dry place Batteries Backup batteries can be stored for up to 5 years a Warning Backup batteries can ignite or explode and constitute a serious fire hazard if they are heated or damaged Store backup batteries in a cool and dry place C7 623 C7 624 Control Systems 8 4 C79000 G7076 C623 01 Maintenance Rules for the To prevent hazard in the use of backup batteries you must observe the fol Handling and Use lowing rules of Backup Batteries i Warning The use of backup batteries can result in injury and damage Wrongly handled backup batteries can explode or cause serious burns Do not e recharge e heat e burn e drill e crush e short circuit backup batteries C7 623 C7 624 Control Systems C79000 G7076 C623 01 8 5 Maintenance 8 2 Replacing the C7 Introduction Prerequisite Removal Installation 8 6 On site repair of the C7 has not been provided for For this reason a defec tive C7 must be replaced The following prerequisites must be met for replacing a C7 Hardware e Programming de
97. the analog signals In such a case you should ground the shield at one end of the cable only The analog output is isolated and so there is no electrical connection between the reference point of the AO M analog circuit and the M terminal of the C7 A potential difference Urso can occur between the reference point of the ana log circuit Mana and the M terminal of the C7 Make sure that Urso does not exceed the permissible value Where it is possible that the permissible value might be exceeded see technical specifications establish a connection be tween the AO M terminal and the M terminal of the C7 The abbreviations and mnemonics in the Figures 6 5 to 6 6 have the follow ing meanings AO I Analog output current AO U Analog output voltage RL Load actuator AO M Ground terminal reference potential of the analog output L Terminal for 24 VDC supply voltage Mjso Potential difference between Mana and the M terminal of the C7 Figures 6 5 td 6 6 khow you how to connect loads actuators to the current and or voltage outputs of the analog output module C7 623 C7 624 Control Systems C79000 G7076 C623 01 6 7 C7 Analog Input Output Connecting Loads You must connect loads to a current output at Qy and the reference point of to a current Output the analog circuit Mana Figure 6 5 shows the principle of connecting loads to a current output of an isolated analog output module
98. tten authority Offenders will be liable for damages Allrights including rights created by patentgrantorregistration of a utility model or design are reserved Siemens AG Automation Group Industrial Automation S ystems P O Box 4848 D 90327 Nuremberg Disclaimer of Liability We have checked the contents of this manual for agreement with the hardware and software described Since deviations cannot be precluded entirely we cannot guarantee full agreement However the data in this manual are reviewed regularly and any necessary corrections included in subsequent editions Suggestions for improvement are welcomed Technical data subject to change Siemens Aktiengesellschaft C79000 G7076 C623 Preface Purpose Audience Contents of This Manual C7 623 C7 624 Control Systems C79000 G7076 C623 01 The information in this manual enables you to do the following Install and wire a C7 623 or C7 624 Volume 1 Parameterize the CPU of the C7 623 or C7 624 load a user program into this CPU and run the program Volume 2 Put the C7 623 and C7 624 into operation and use the O I functions Vol ume 2 The manual is divided to take account of two different types of reader Volume 1 Users who carry out the mechanical and electrical installation of the C7 at the location of use and who bring the C7 to a state of readiness for im mediate use Volume 2 Users who create control programs and O I configurations lo
99. unction Interrupts Diagnostics e At 1 to 0 approx 0 01 ms Interrupts Parameterizable Input characteristic In accordance with Counter functions Parameterizable TEC 1131 Part 2 Max counter frequency 10 kHz Type of input in accordance Type 2 Module standard dia with IEC 1131 gnostics in conjunction with analog I O No Input current channel specific dia e At 1 signal From 6 to 11 5 mA gnostics Counters Max 3 e Principle Edge counting e Counter range up 0 to 65535 down 65535 to 0 e Limit value setpoint 1 value per counter specification Counter interrupt of up When limit value is counter reached e Counter interrupt of down When 0 is reached counter e Enable In the program Period Duration Counter Max 1 e Principle Counting between fixed time units from two positive edges e Counter range 0 to 16777215 e Max period duration 8 395 s or 0 119 Hz Frequency Counter Max 1 e Principle Counting of pulses within a time period Counter range 0 to 16777215 Gate width 0 1s 10s settable Max frequency 10 kHz limited by in put filter C7 623 C7 624 Control Systems 7 4 C79000 G7076 C623 01 Maintenance This Chapter Changing and Disposing of the Backup Battery C7 623 C7 624 Control Systems C79000 G7076 C623 01 8 1 Maintenance 8 1 Changing and Disposing of the Backup Battery Change During POWER ON Only Changing the Backup Battery of the C7 8 2 You must always cha
100. vice PC with MPI interface module e Relevant connecting cable Development tools e STEP 7 e ProTool or ProTool Lite User software stored outside the C7 e User configuration e User control software if data from the C7 CPU no longer readable Proceed as follows e Mechanical removal takes place in the opposite order to the installation e Connect a PG PC to the MPI e Use STEP 7 to transfer the user program stored in the C7 CPU toa PG PC If the C7 CPU is defective and the user program can no longer be read out remove the C7 without any further safety measures e The configuration loaded onto the C7 cannot be read out It must be avail able on a PG PC As soon as you have a new C7 install it as follows 1 The mechanical and electrical installation is as described in the manual 2 Connect a PG PC to the MPI 3 Perform a memory reset of the C7 as described 4 Transfer the previously saved user program from the PG PC with the rele vant data to the C7 CPU using STEP 7 n Load your configuration with ProTool or ProTool Lite into the C7 6 Start the user program C7 623 C7 624 Control Systems C79000 G7076 C623 01 General Technical Specifications What Are General This chapter lists the general technical specifications of the C7 Technical Specifications These general technical specifications contain the standards and test values that the C7 conforms to or the criteria against which the C7 has bee
101. y period duration counter input e Digital input These input functions can be set by parameterization Terminal Figure 7 1 shows the pin assignments of the universal inputs Connection Diagram View of right hand side of C7 peee g fe A o o e Universal inputs o Ground DI X1 o DI X2 o DI X3 ae DI X4 Not assigned Parts shaded in this way are not relevant for the explanation Figure 7 1 Pin Assignments of the Universal Inputs C7 623 C7 624 Control Systems 7 2 C79000 G7076 C623 01 Universal Inputs Pin Assignments of the Universal Inputs Parameterizing the Inputs Interrupt Input Digital Input Counter Input Frequency Counter Period Duration Counter The pin assignments of the universal inputs are as follows Table 7 1 Assignments of the Universal Inputs Function Relevant ground Universal input 1 interrupt input digital input or counter input Universal input 2 interrupt input digital input or counter input Universal input 3 interrupt input digital input counter input frequency counter input or period duration counter input Universal input 4 interrupt or digital input Not connected Not connected Not connected The universal inputs are set per software This is done using the S7 Configu ration tool You use this tool to determine which function the individual in put is to execute see Table 7

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