Home

6es7621-1ad02-0ae3 klawiatura simatic c7

1. Bus cable connector for the first Bus cable connection for all and last stations on the bus other stations on the bus ea s TE 3 1 The bus cable can be connected either to the right or left Figure 3 11 Fitting the Bus Connector 6ES7 972 0B 20 to the LAN Cable 6 Screw down the hinged clamp again Make sure that the bare cable shield makes contact under the shield clamp 7 Secure the green and red wires in the screw terminal 8 Close the cover of the bus connector 9 Tighten the cover screw C7 621 C7 621 AS i Control Systems 3 16 C79000 G7076 C621 01 Configuring an MPI Network 3 5 3 Bus Connector 6ES7 972 0B 10 0XA0 Appearance Table 3 6 shows the bus connector 6ES7 972 0B 10 0X AO Table 3 6 Description and Functions of the Bus Connector 6ES7 972 0B 10 OXA0 Front View of the Bus Connector No Function With PG Interface Without PG Interface Connection to a the MPI SIEMENS SIEMENS PROFIBUS DP interface 9 pin sub D connector Connector for the PROFIBUS LAN cable Terminating resistor Interface
2. O Current o Single channel voltage measurement Figure 7 8 Connection of a Channel for Voltage Measurement Current Measurement Voltage Reference potentialO O Current _ o sina channel current measurement Figure 7 9 Connection of a Channel for Current Measurement C7 621 C7 621 AS i Control Systems C79000 G7076 C621 01 7 13 C7 621 Analog I Os Analog Input The following table contains the technical data of the analog inputs of the C7 CPU Module Specific Data Noise Suppression Error Limits continued Number of inputs 4 Basic error limit operational limit at 25 C relative to input Cable length range Shielded max 100 m e Voltage input 09 Voltages Currents Potentials e Current input 0 8 Permitted potential difference Temperature error relative to 0 01 K Between inputs and Mana DC 1 0 V input range Ucm Linearity error relative to 0 06 Analog Value Formation input range Measuring principle Instantaneous value Reproducibility accuracy in 0 06 encoding successive approximation Conversion time resolution per channel e Base conversion time 100 us Resolution including overflow range 11 bits sign Noise Suppression Error Limits Noise voltage suppression e Common mode voltage gt 40 dB Ucm lt 1 0 V Crosstalk between inputs gt 60 dB Error limit in the entire temper
3. The LAN cable can be connected either to the right or left Figure 3 13 Connecting the LAN Cable to the Bus Connector 6ES7 972 0B 10 OXA0 8 Close the housing again using the screws Make sure that the cable shield makes contact below the shield clamp C7 621 C7 621 AS i Control Systems C79000 G7076 C621 01 Configuring an MPI Network 3 5 4 Connecting the Bus Connector to a Module Connecting the Bus Connector Removing the Bus Connector ZN To connect the bus connector follow the steps outlined below 1 Plug the bus connector into the module 2 Screw the bus connector securely to the module 3 If the bus connector with the order number 6ES7 is located at the start or end of a segment you must activate the terminating resistor switch setting ON see Figure 3 14 Note The bus connector 6ES7 972 0BA30 0XA0 does not have a terminating resistor You cannot plug in this bus connector at the start or end of a segment Make sure that the stations on which the terminating resistor is located are always turned on during startup and operation Terminating i on Terminating resistor on resistor on off E Figure 3 14 Bus Connector 6ES7 Terminating Resistor Activated and Deactivated You can remove the bus connector with a LAN cable connected through at any time from the PROFIBUS DP interface without interrupting the data exchange on the bus
4. Insert sealing ring here Figure 2 1 Inserting the Sealing Ring C7 621 C7 621 AS i Control Systems 2 3 C79000 G7076 C621 01 Installing and Preparing the C7 Securing Post Before Engaging Securing Post Engaged 2 4 lt 68 gt we S 159 0 5 y gt 11040 5 168 gt __ Cutout in front panel Figure 2 2 Dimension Drawings for the C7 Figure 2 3 Securing Post Before Engaging Figure 2 4 Securing Post Engaged with Screw C7 621 C7 621 AS i Control Systems C79000 G7076 C621 01 Installing and Preparing the C7 Releasing the To release a securing post follow the steps outlined below Securing Post Action Loosen the screw Lever the securing post upwards in Figure 2 5 Figure 2 5 Removing the Securing Post C7 621 C7 621 AS i Control Systems C79000 G7076 C621 01 2 5 Installing and Preparing the C7 2 3 Location of the C7 Points to Note When installing the C7 please remember the following points A The thickness of the switching panel can be between and 4 mm Make sure that the sealing ring makes a tight seal all round e There must be a clearance of at least 50 mm above and below and 70 mm at the sides of the C7 as shown in Figure 2 6 e Ma
5. Figure 3 7 Appearance of the PROFIBUS Bus Connector C7 621 C7 621 AS i Control Systems C79000 G7076 C621 01 3 13 Configuring an MPI Network Fitting the Fit the PROFIBUS bus connector with order number 6GK1500 0EA00 to the Connector to the LAN cable as follows LAN Cable 1 Strip the cable 2 Insert the green and red wires into the screw terminals 3 Press the cable sheath between the two clips 4 Tighten the screw terminals to secure the green and red wires Screw terminal block for LAN cable connection 2 E 1 in a Q ee PROFIBUS LAN cable 6XV1 830 0AH10 Figure 3 8 Connecting the PROFIBUS LAN Cable to the Screw Terminal Block 3 5 2 Bus Connector 6ES7 972 0B 20 0XA0 Appearance Figure 3 9 shows the bus connector with order number 6ES7 972 O0B 20 6ES7 972 0B 20 an H n Ze p 9 pin sub D connector securing to the for connection to the station o station Switch for 5 terminating resistor PG interface only with Casing screw 6ES7 972 0BB20 0XA0 Hinged clamp for vertical or 30 cable outlet QV Figure 3 9 Appearance of the Bus Connector Order Number 6ES7 972 0B 20 C7 621 C7 621 AS i Control Systems 3 14 C79000 G7076 C621 01 Configuring an MPI Network Fitting the Bus Connector
6. aa aaa nn a nenn na an a aa ew eke ox A 1 Technical Specifications 00 cece eee eee A 2 A 2 Notes on the CE Approval 0 0 ccc eee ee eee ee A 5 A 3 Notes for Manufacturers of Machines 22 000ceeeeee ee eee A 7 B Guidelines for Handling Electrostatically Sensitive Devices ESD B 1 Whats ESD used ia da B 2 B 2 Electrostatic Charging of Objects and Persons 0000005 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 00 ccc eee eee ees B 7 Cc Safety of Electronic Controllers 20 0 cece nn nn nun nn nun nn nenn C 1 D SIMATIC C7 and S7 References C7 621 C7 621 AS i Control Systems C79000 G7076 C621 01 Product Overview In This Chapter Accessories for Installing and Starting Up aC7 This chapter introduces you to the C7 621 and C7 621 AS i A brief overview of the range of performance will give you a first impression of the two devices This chapter also explains the additional components that you can connect to aC7 To install and start up the C7 you require the following accessories e Programming device or PC with an MPI interface and PG cable e The following software must be loaded on the programming device or PC STEP 7 Tools ProTool or ProTool Lite C7 621 C7 621 AS i Contro
7. Following this the memory of the C7 OP is reset in other words the C7 OP is reinitialized and the entire configuration is deleted Note The default configuration contained in the firmware in English remains available and can be worked with A memory reset on the C7 CPU means that the C7 CPU is reinitialized the current user program in the RAM is deleted and any user program currently in the flash memory of the C7 CPU is reloaded There are two ways of resetting the C7 CPU memory Memory reset using the C7 system function C7 CPU Mode on the C7 Memory reset using the PG function see programming device manual A memory reset using the PG function is only possible with the C7 CPU in the STOP mode C7 621 C7 621 AS i Control Systems C79000 G7076 C621 01 Installing and Preparing the C7 Memory Reset on The section below describes how to reset the C7 CPU memory with the the C7 CPU Using C7 CPU Mode system function the System Function 1 Select the system functions menu by pressing the keys SHIFT 0 The following is displayed on the C7 621 C7 621 C7 System Functions KEY IN OUT Figure 2 16 C7 621 System Functions Menu with Function Keys or for the C7 621 AS i C7 621 AS i C7 System Functions KEY AS i Figure 2 17 C7 621 AS i System Functions Menu with Function Keys 2 Select the C7 CPU Mode menu by pressing F4 If you have no
8. Warning Keying connectors is strongly advised to prevent damage to the C7 621 C7 621 C7 621 AS i Control Systems C79000 G7076 C621 01 Installing and Preparing the C7 2 8 Contrast Setting the You can set the contrast of the C7 display using the screw as shown in Figure Contrast 2 13 and adapt the contrast to the lighting conditions Figure 2 13 Setting the Contrast C7 621 C7 621 AS i Control Systems C79000 G7076 C621 01 2 17 Installing and Preparing the C7 2 9 I O Expansion with the IM 621 Additional S7 300 You can connect further S7 300 I Os to the C7 via the P bus connector of the Modules C7 621 or C7 621 AS i How you install the S7 modules is described in the manual 71 Note You can connect a maximum of four I O modules to the C7 Requirements The S7 300 system must have an IM 621 interface module Connecting the Connect the additional I Os as following Additional Os 1 Install the additional I O modules as described for the rack in the manual 70 2 Connect the C7 621 or C7 621 AS i to the IM 621 interface module via an IM 621 standard cable for the connection to C7 see alsq Figure 2 9 An IM 621 cable is supplied with the module and is connected to the IM 621 interface module The first time you start up the C7 it detects the connected additional modules Addresses Addressing on the C7 is described in Volume 2 Chapter 4 P Bus Interface
9. Warning Disturbance of data exchange on the bus is possible A bus segment must always be terminated at both ends This is for example not the case if the power supply to the last slave with a bus connector is not turned on Since the bus connector takes its power from the station this would make the terminating resistor ineffective Make sure that the stations on which the terminating resistor is activated are always turned on C7 621 C7 621 AS i Control Systems C79000 G7076 C621 01 3 19 C7 621 C7 621 AS i Control Systems C79000 G7076 C621 01 Connecting a Programming Device PC to 4 a C7 Chapter Overview Connecting a Programming Device PC to a C7 42 Connecting a Programming Device PC to Several Nodes C7 621 C7 621 AS i Control Systems C79000 G7076 C621 01 4 1 Connecting a Programming Device PCtoaC7 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 explains the ways in which you can connect a programming device or PC to the C7 via the multipoint interface For information about the possible cable lengths refer to You can connect a programming device or PC to the MPI port of the C7 using a preassembled PG cable As an alternative you can use PROFIBUS LAN cable and bus connectors to make your own connecting cable see Section 3 5 J Figure 4 1 shows the components for connecting a pro
10. C7 621 AS i Control Systems C79000 G7076 C621 01 General Technical Specifications A 2 Notes on the CE Approval CE Approval cE EMC Directive Area of Application Conformity Declaration Installation Instructions SIMATIC products meet the requirements of the following EU directives Our products meet the requirements of the EU Directive 89 336 EEC Electromagnetic Compatibility The CE approval for the C7 621 and C7 621 ASi compact units is as follows Area of Application Requirements for Noise Emission Noise Immunity Industrial and office area Fy 50081 2 1993 EN 50082 2 1995 Domestic area business and trade area and small plants EN 50081 1 1992 EN 50082 1 1992 The EU conformity declarations are kept according to the EU directives listed above for the authorities responsible at the following address Siemens Aktiengesellschaft Bereich Automatisierungstechnik AUT 125 Postfach 1963 D 92209 Amberg The installation guidelines and safety instructions described in the manual must be adhered to when installing and operating the devices C7 621 C7 621 AS i Control Systems C79000 G7076 C621 01 A 5 General Technical Specifications Recycling and The SIMATIC C7 621 is an environmentally friendly product Disposal The SIMATIC C7 621 has the following features in terms of the environment e Despite its high degree of flame resistance the plastic housing is haloge
11. Cable length Diagnostic functions no e Unshielded max 600 m Data for Selecting a Sensor Voltages Currents Potentials Input voltage Rated load voltage L DC 24 V e Rated value DC 24 V Re verse polarity yes e For signal 1 11 to 30 V protection e For signal 0 3 to 5 V Number of simultaneously 16 Input current ible input an es e For signal 1 Typically 7 mA Floating no C7 621 C7 621 AS i Control Systems C79000 G7076 C621 01 Input delay e From 0 to 1 e From 1 to 0 Input characteristics Connection of 2 wire BEROs e Permitted closed circuit current 1 2 to 4 8 ms 1 2 to 4 8 ms Complying with IEC 1131 Type 2 Possible max 2 mA C7 621 Digital I Os 6 2 Digital Outputs Properties The digital outputs have the following properties e 16 outputs non floating e Output current 0 5 A e Rated load voltage 24V DC e Suitable for example for solenoid valves and DC contactors Note When the power supply is turned on the digital output applies a pulse to the outputs Within the permitted output current range a pulse can be approximately 50 us long C7 621 C7 621 AS i Control Systems 6 4 C79000 G7076 C621 01 C7 621 Digital Os Terminals and Figure 6 2 shows the terminals and block diagram of the digital outputs Bleck Diagram The following page has more detailed technical data about the digital outputs Bottom view of the C7 621 z
12. Digital output 12 1 5 Q125 5 Digital output 13 Digital output 14 Q125 7 Digital output 15 C7 621 C7 621 AS i Control Systems C79000 G7076 C621 01 2 9 Installing and Preparing the C7 Analog Input Output P Bus IM 621 2 10 Table 2 4 Pinout of the Analog Inputs Outputs Analog output signal output f r voltage Analog output signal output f r current Analog output reference potential P bus connector IM 621 Figure 2 9 C7 621 with IM 621 Connector C7 621 C7 621 AS i Control Systems C79000 G7076 C621 01 Installing and Preparing the C7 C7 621 AS i The figure illustrates the AS i connector of the C7 621 AS i This connector only exists on the C7 621 AS i AS i connector 7 Lf Figure 2 10 C7 621 AS i with AS i Connector AS i Connector To connect actuators sensors and the AS i power supply unit Table 2 5 Pinout of the AS Interface Pin Function AS i Connected internally with AS i AS i Connected internally with AS i AS i Connected internally with AS i AS i Connected internally with AS i C7 621 C7 621 AS i Control Systems C79000 G7076 C621 01 2 11 Installing and Preparing the C7 Device Connectors You can use the following connecting cables to connect the C7 to other of the C7 components Table 2 6 Connecting Cables for the C7 Connectors Connecting Cab
13. Introduction The information in this section is of a general nature and applies to all types of electronic controllers regardless of the manufacturer Reliability The reliability of SIMATIC devices and components is kept as high as possible by comprehensive procedures during development and manufacturing These include the following The use of high quality components The worst case dimensioning of all circuits Systematic and computer controlled testing of all externally supplied components Burn in of all large scale integrated circuits for example processors memory etc Measures for preventing static charge when handling MOS circuits Visual checks at all levels of manufacture In circuit test of all modules in other words computer supported testing of all components and their interaction in the circuit Continuous tests at increased ambient temperatures over several days Thorough computer controlled final test Statistic evaluation of all returned products and immediate instigation of corrective measures Monitoring of the most important control components with online tests parity monitoring in the RAM watchdog for the CPU etc These are basic measures that allow the vast majority of errors to be avoided or detected C7 621 C7 621 AS i Control Systems C79000 G7076 C621 01 C 1 Safety of Electronic Controllers The Risks Division into Safety and Non Safety Areas Important Note C 2 Wherever in
14. AS i cable a profile cable allows simple and fast installation of an AS i system The AS i cable is a rubberized 2 wire cable 2x 1 5 mm The special profile of the cable prevents polarity reversal when connecting nodes Attachments are made to the AS i cable using the penetration technique Contacts penetrate the rubberized jacket and make contact to the two cores This guarantees a low transition resistance and a reliable data connection The cable does not need to be cut stripped or screwed To attach to the network there are coupling modules that use the penetration technique 10 mm 6 5 mm Figure 5 2 Cross Section of the Cable The jacket of the AS i cable is rubber If it becomes necessary to move modules after they have been connected to the AS i cable this can be done without any problem The AS i cable is self healing This means that the holes made by the contacts penetrating the jacket close automatically and re establish degree of protection IP67 When the cable is installed in an AS i module the cable seals the cable inlets This allows degree of protection IP67 to be achieved Apart from the special AS i cable any 2 wire cable with a cross section of 2 x 1 5 mm can be used Shielding or twisting is not necessary For the change from the special AS i cable to another cable for example a standard round cable there is a special module without integrated electronics available transition from the AS i cable
15. 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 gt Ground Potential to which from which the voltages of the connected circuits are referred The scan cycle time is the time required by the gt C7 to execute the gt user program once Signal modules C7 I Os form the interface between the process and the C7 There are digital input and output modules and analog input and output modules C7 621 C7 621 AS i Control Systems C79000 G7076 C621 01 Glossary STEP 7 STEP 7 Tool Substitute Value System Diagnostics System Memory T Time Delay Interrupt Time of Day Interrupt Tool Total Current U Ungrounded Programming software for creating user programs for SIMATIC 87 programmable controllers A STEP 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 occurr
16. complying with IEC 801 2 IEC 1000 4 2 ESD Noise immunity against discharge C7 621 ASi 4kV discharge on contact complying with IEC 801 2 IEC 1000 4 2 ESD 8kV atmospheric discharge complying with IEC 801 2 IEC 1000 4 2 ESD Immunity to high frequency radiation 10V with 80 amplitude modulation with 1 kHz 10kHz to 80MHz complying with EN 50 141 10V m with 80 amplitude modulation with 1 kHz 80kHz 1GHz complying with EN 50 140 10V m pulse modulated 50 c d f with 900 MHz complying with EN 50 140 Climatic Conditions Temperature Operation Storage transport Tested in compliance with DIN IEC 68 2 1 DIN IEC 68 2 2 0 C to 45 C 0 C to 50 C Note e At 45 C and horizontal installation the legibility of the display is restricted installation at angle of 45 vertical installation 20 C to 70 C Relative humidity Operation Storage transport Tested in compliance with DIN IEC 68 2 3 5 to 95 at 25 C no condensation 5 to 95 at 25 C no condensation Atmospheric pressure Operation Storage transport 1080 795 hPa Z 1000m to 2000m 1080 660 hPa 1000m to 3500m C7 621 C7 621 AS i Control Systems C79000 G7076 C621 01 A 3 General Technical Specifications Table A 1 Technical Specifications of the C7 continued Characteristic Mechanical Environmental Conditions Technical Specifications Vibra
17. components e MPI interface e AS interface e P bus connection for the IM 621 module This model does not have digital inputs outputs and analog inputs outputs Figure 1 2 C7 621 AS i You can do the following with the C7 621 AS i control system e Run user programs that were written in STL LAD or FBD and downloaded to the C7 CPU e Connect actuators and sensors via the AS interface to the C7 621 AS i e Download and use operator interface applications that you created with the ProTool or ProTool Lite configuration tool e Using these configurations you can monitor and intervene in the process you are controlling with the user program e Connect further S7 300 modules C7 621 C7 621 AS i Control Systems C79000 G7076 C621 01 Product Overview C7 621 AS i Units The C7 has two independent units that communicate with each other via an internal MPI interface e C7 CPU with C7 AS i CP e C7 OP When necessary these units are dealt with separately in the manuals C7 621 C7 621 AS i Control Systems C79000 G7076 C621 01 Product Overview Components that Apart from the connections to the process you can also connect various Can Be Connected components to the C7 The most important components and their functions toaC7 are listed in Table 1 1 Table 1 1 Components that Can Be Connected to a C7 Component Function Schematic IM 6
18. connecting cable Data are exchanged between the connected devices over the network C7 621 C7 621 AS i Control Systems C79000 G7076 C621 01 Glossary N Node Number Non isolated O Operating System of the C7 CPU Parameter Parameter Assignment Parameter dynamic Parameter static PG PLC The node number represents the access address of a C7 CPU C7 OP ora 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 device 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 part of a special control task 1 Variable of a STEP 7 logic block 2 Variable for setting the behavior of a module one or more per module Each module is supplied from the factory with a default setting that can be modified using the STEP 7 tool S7 Configuration There are gt static parameters and gt dynamic parameters Parameter assignment refers to the setting of the behavior of a module 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 sta
19. declarations as well as data for signal processing by which a plant or process can be controlled It is assigned to a programmable module for example C7 CPU FM and can be structured in smaller units blocks V Varistor Voltage dependent resistor W Work Memory The work memory is a RAM in the gt C7 620 that the processor uses to access the user program during program execution C7 621 C7 621 AS i Control Systems Glossary 10 C79000 G7076 C621 01 Index 368 connecting cable 2 19 4 wire transducer connecting 7 6 measurement ranges 7 10 A Accessories Analog input 7 10 measurement ranges 7 10 properties technical specifications 7 11 terminal diagram 7 12 Analog output 7 15 terminal diagram 7 16 Analog signal cable for cables for AS i cable connecting AS i connection AS i power supply AS i power supply unit B Bus connector connecting to a module installing the LAN cable installing the PROFIBUS LAN cable purpose removing 3 19 setting the terminating resistor BS terminating resistor C7 621 C7 621 AS i Control Systems C79000 G7076 C621 01 Cc C7 installing 2 3 range of functions C7 accessories 2 2 C7 CPU Glossary 2 clock 2 24 memory reset 2 21 C7 minimum clearance C7 OP Glossary 3 clock 24 Cable for analog signals Cable lengths in an MPI network maximum B 8 CE approval Characteristic impedance Siehe Abschlu wid ers
20. is possible that this will exceed the maximum permitted value for Ucp or if you cannot measure the potential difference exactly AIx M must be connected to M C7 621 C7 621 AS i Control Systems C79000 G7076 C621 01 7 3 C7 621 Analog I Os Figure 7 2 shows the connection of non isolated sensors to a floating analog input module Analog inputs C7 621 x Al1 U Al1 M Isolated ADC Logic sensor Al2 U C7 CPU 0 va Al2 M ner Ucm l Yy M Input 24V DC EF l M NC NC Equipotential A bonding cable U i Grounding bar Functional earth Figure 7 2 Connecting Non Isolated Sensors to a Floating Analog Input C7 621 C7 621 AS i Control Systems 7 4 C79000 G7076 C621 01 C7 621 Analog I Os 7 1 1 Connecting Voltage and Current Sensors Abbreviations The abbreviations in Figures 7 3 to 7 4 have the following meaning AIx X Measuring cable AIx I or AIx U AIx M Measuring cable reference potential M Reference potential of the analog measuring circuit functional EN ground Connecting Figure 7 3 shows the connection of voltage sensors to a non floating analog Voltage Sensors input Analog inputs ts C7 621 4 Al1 U 9 Al1 M 4 Al2 U BRE Logic _ C7 CPU 9 Al2 M Functional ground ED Figure 7 3 Connecting Non Isolated Sensors to a
21. output of a non floating analog output module with a 2 wire connection AO U Logic DAC C7 CPU AO M Input 24V DC tF M NC NC A Functional ground Figure 7 6 Connection of Loads to a Voltage Output of a Non Floating Analog Output Module C7 621 C7 621 AS i Control Systems C79000 G7076 C621 01 C7 621 Analog I Os 7 3 Analog Input Contents This section explains the following e The properties of the analog input module e The technical data of the analog input module You will learn the following e How to install the analog input module e Which measuring ranges are provided by the analog input module Selectable Types The following measurement types are possible on the analog input module of Measurement e Voltage measurement e Current measurement Measurement The measurement ranges are as follows Ranges e Voltage 10V e Current 20mA Measurement The measuring ranges for current measurement with 4 wire measuring Ranges for 4 Wire transducers are as follows M rin ung e 20mA Transducers C7 621 C7 621 AS i Control Systems 7 10 C79000 G7076 C621 01 C7 621 Analog I Os 7 3 1 Properties and Technical Data of the Analog Input Module Properties The analog input module has the following properties 4 inputs Measured value resolution 12 bits including sign Measurement type selecte
22. storage and 30 C to 65 C when installed C7 621 C7 621 AS i Control Systems C79000 G7076 C621 01 3 11 Configuring an MPI Network 3 5 Bus Connectors Purpose of the The bus connector is used to connect the PROFIBUS LAN cable to the MPI Bus Connector interface This establishes the connection to further nodes There are five different bus connectors e Upto 12 Mbps PROFIBUS bus connector 6GK1500 0EA00 e Upto 12 Mbps Without PG interface 6ES7 972 0BA10 0XA0 With PG interface 6ES7 972 0BB10 0XA0 e Upto 12 Mbps with swivelling cable outlet straight or angled Without PG interface 6ES7 972 0BA20 0XA0 With PG interface 6ES7 972 0BB20 0XA0 No Area of You do not require a bus connector for the RS 485 repeater Application C7 621 C7 621 AS i Control Systems 3 12 C79000 G7076 C621 01 Configuring an MPI Network 3 5 1 PROFIBUS Bus Connector Appearance Figure 3 7 shows the PROFIBUS bus connector with order number 6GK 15000 0EA00 6GK1500 0EA00 Figure II Bus connector for the first and last node on the PROFIBUS network The cable can be connected either from the left or right Switch setting for the first and last station on the PROFIBUS network ON terminating resistor activated The cable shield must lie on the bare metal Figure IH Terminator resistor deactivated The cable shield must lie on bare metal
23. to the LAN Cable Fit the bus connector with order number 6ES7 972 0B 20 to the LAN cable as follows 1 Strip the insulation from the LAN cable as shown in Figure 3 10 Vertical Cable Outlet Ww 2 AB ABS T E ire ad F ah Without PG interface With PG interface Angled Cable Outlet AB Y AB ps 2 To Or AB re t fr 2 2 a a a N N N Without PG interface With PG interface Figure 3 10 Length of Insulation to be Removed when Fitting the Bus Connector 6ES7 972 0B 20 2 Open the casing of the bus connector by undoing the screw and lifting the cover 3 Release the cover of the hinged clamp 4 The bus connector with order number 6ES7 972 0B 20 is shipped with the cable outlet at 30 degrees If you require a vertical cable outlet Loosen the left screw on the hinged clamp Lever the hinged clamp upwards slightly Turn the hinged clamp inwards To fix the clamp in position tighten the left screw again C7 621 C7 621 AS i Control Systems C79000 G7076 C621 01 3 15 Configuring an MPI Network 5 Fitthe green and red wires into the screw terminal as shown in Figure 3 11 Make sure that you always insert the same colored wire into the same terminal on all connectors for example the green wire into terminal A and the red wire into terminal B or vice versa
24. via an IM 621 C7 621 C7 621 AS i Control Systems C79000 G7076 C621 01 2 7 Installing and Preparing the C7 C7 621 Figure 2 8 illustrates the C7 621 with digital and analog connectors These connectors only exist on the C7 621 The pinouts of the connectors are shown in the following tables Digital input top Digital output bottom Analog input Analog output Figure 2 8 View of a C7 621 with External I O Ports Digital Input Table 2 2 Pinout of the Digital Inputs Pin Signal Function 0 0 1124 0 Digital input 0 0 1 1124 1 Digital input 1 0 2 1124 2 Digital input 2 0 3 1124 3 Digital input 3 0 4 1124 4 Digital input 4 0 5 1124 5 Digital input 5 0 6 1124 6 0 7 1124 7 Digital input 7 1 0 1125 0 Digital input 8 1 1 1125 1 Digital input 9 1 2 1125 2 Digital input 10 1 3 1125 3 Digital input 11 1 4 1125 4 Digital input 12 1 5 1125 5 Digital input 13 C7 621 C7 621 AS i Control Systems 2 8 C79000 G7076 C621 01 Installing and Preparing the C7 Table 2 2 Pinout of the Digital Inputs continued TE 1 6 1125 6 Digital input 14 1 7 1125 7 Digital input 15 Digital Ouput Table 2 3 Pinout of the Digital Outputs 00 Q1240 Digital output 0 Digital output 1 0 2 Q124 2 Digital output 2 Digital output 3 Digital output 4 0 5 Q124 5 Digital output 5 Digital output 6 Digital output 7 Digital output 8 Digital output 9 Digital output 10 Digital output 11
25. 21 interface module with connects a C7 with an cable expansion rack for S7 300 modules Signal module SM adapt various process signal Digital input modules levels to the C7 CPU Can be digital output modules connected to the C7 via an IM analog input modules 621 analog output modules analog input output modules S7 300 CPU communicates via the MPI interface with C7 and with other nodes on an MPI network S7 400 CPU communicates via the MPI interface with C7 and other nodes on an MPI network OP Operator Panel allows operator interface functions PROFIBUS LAN cable with Interconnects nodes on an bus connector MPI network PG cable comnects a programming device PC with a C7 C7 621 C7 621 AS i Control Systems C79000 G7076 C621 01 1 5 Product Overview Table 1 1 Components that Can Be Connected to a C7 continued Component Function Programming device PG or PC configures assigns Schematic with the STEP 7 software parameters programs and tests package and ProTool or Pro the C7 Tool Lite RS 485 repeater amplifies the signals in an MPI or PROFIBUS DP network and connects segments of an MPI or PROFIBUS DP network
26. 30 2 V DC safety extra low voltage SELV the C7 621 and C7 621 ASi do not have protection against high energy surge pulses in the us range For details of protection please refer to the ma nual 70 Chapter 4 A 2 yes voltage e Voltage dip lt 20 ms buffered Current consumption In 1000mA max Safety Standards DIN EN 61131 2 IEC 1131 2 C7 621 C7 621 AS i Control Systems C79000 G7076 C621 01 General Technical Specifications Table A 1 Foreign body and water protection e Device front panel e Device housing Technical Specifications of the C7 continued Characteristic Technical Specifications IP 65 complying with IEC 529 IP 20 complying with IEC 529 Electromagnetic Compatibility EMC Emitted interference Limit value class C7 621 Limit value class C7 621 ASi B compl with EN55022 CISPR 22 B compl with EN55022 CISPR 11 Conducted interference on DC volt age supply lines 2kV complying with IEC 801 4 IEC 1000 4 4 burst 1kV complying with IEC 801 5 IEC 1000 4 5 us pulse line to line 2kV complying with IEC 801 5 IEC 1000 4 5 us pulse line to ground With protection element KT type AD 24 V from firm of Dehn Noise immunity on signal lines 2kV complying with IEC 801 4 IEC 1000 4 4 burst Noise immunity against discharge C7 621 6kV discharge on contact complying with IEC 801 2 IEC 1000 4 2 ESD 8kV atmospheric discharge
27. Hold modules 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 artificial fibers e Place electrostatic sensitive devices only on conductive surfaces Tables with ESD surface Conductive ESD foam plastic ESD foam plastic is mostly colored 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 621 C7 621 AS i Control Systems C79000 G7076 C621 01 Guidelines for Handling Electrostatically Sensitive Devices ESD ESD Precautions The following figure once again illustrates the precautions for handling electrostatically sensitive devices Conductive flooring material Table with conductive
28. Hz e With inductive load to IEC max 0 5 Hz 947 5 1 DC 13 e With lamp load max 100 Hz Limitation internal of the Typically L 48 V inductive cut off voltage Short circuit protection of the Yes clocked output electronically e Switching threshold Typically 1 A C7 621 C7 621 AS i Control Systems 6 6 C79000 G7076 C621 01 C7 621 Digital I Os 6 3 Status Displays of the DI DO Overview Selecting the DI DO Status Display Quitting the DI DO Display Quitting the System Functions Menu The status of the digital I Os can be displayed with one of the C7 system functions The values are read as direct process values PIW of the DI and as the process image QW of the DO C7 I Os and displayed in the format BIN It is not possible to modify the display In the STOP mode the real process status for DO 0 The displayed process image can deviate from this the displayed image represents the last image set by the control program You can select the DI DO status display without an operator password The DI DO status display can be selected in the system functions menu by pressing the F5 key The following data are displayed Bit 0 7 Bit0 0 Bit 1 7 Bit 1 0 DI 11101110 00001010 DO 10101010 11010001 Figure 6 3 Example of a Status Display on a C7 621 Table 6 1 Explanation of the DI DO Status Display in Figure 6 3 Display Explanation 1 DI DO set 0 DI DO reset No
29. Non Floating Analog Input C7 621 C7 621 AS i Control Systems C79000 G7076 C621 01 7 5 C7 621 Analog I Os Connecting 4 wire transducers have a separate power supply Uy Figure 7 4 shows the Sensors as 4 Wire connection of sensors as 4 wire measuring transducers to a non floating Transducers analog input Sensor Analog inputs C7 621 e g pressure meas Al1 U P 3 E Al1 M i ADC Logi Al2 gic PLY gth C7 CPU Blu 5 i Al2 M i M T o Input 24V DC Er M NC NC Functional ground Groungingbar Figure 7 4 Connecting 4 Wire Transducers to a Non Floating Analog Input Note 2 wire transducers cannot be operated with the C7 units C7 621 C7 621 AS i Control Systems 7 6 C79000 G7076 C621 01 C7 621 Analog I Os 7 2 Connecting Loads Actuators to the Analog Output Overview With the analog output you can supply loads actuators with current or voltage Cables for Analog You should use shielded twisted pair cables for analog signals This reduces Signals the effects of noise The shield of the analog cables should be grounded at both ends If there are potential differences between the ends of the cable an equipotential current can flow through the shield and cause disturbances to the analog signals In this case you should only ground the cable at one end Abbreviations T
30. SIEMENS SIMATIC C7 621 C7 621 AS i Control Systems Volume 1 Hardware and Installation Manual C79000 G7076 C621 01 3 Installing and Preparing the C7 3 I S IF 2 12 Jo IQ v c gt Is 5 8 re gt IS IS oO o 3 2 l 2 o IS O 53 a ol N Q O E Cc F gt Q ab z V Z Q oO gt 2 gt Connecting a Programming 4 Device PC to a C7 AS i Attaching a C7 621 AS i 5 I Os C7 621 Digital I Os 6 C7 621 Analog I Os 7 lt D 5 gt oO 5 D O oO foe Appendix tions Guidelines for Handling ESD oO D lt O D n G D j D v o Q y O v ep O ia Q Ey O Safety of Electronic Controllers ee gt O O X o J a ep N JI D 2 w ences 0 O n Nn jad Ss Index Safety Guidelines AN AX Ax Qualified Personnel Correct Usage AN Trademarks This manual contains notices which you should observe to ensure your own personal safety as well as to protectthe 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 Danger indicates thatdeath severe personal injury orsubstantial property damage will resultif proper precautions are not taken Warning indicates thatdeath severe personal injury orsubstantial property damage can resultif proper precauti
31. Sensors and actuators AS i slaves Refer to the various catalogs applies only to the C7 621 AS i 1 6 C7 621 C7 621 AS i Control Systems C79000 G7076 C621 01 Product Overview Overview of the C7 The SIMATIC C7 621 C7 621 AS i devices consist of several components that interact with each other e A programmable controller CPU of the SIMATIC S7 300 class C7 CPU e A line oriented SIMATIC OP C7 OP e Integrated digital and analog I Os C7 621 I Os e AP bus connection for expanding the C7 621 with an IM 621 using S7 300 modules e An MPI interface for communication with the programming device PC and other S7 CPUs C7 control systems and OPs e An AS interface AS i for connecting sensors and actuators version C7 621 AS i see Figure 1 4 CPU memory 1 OP memory crcru C7 0P MPI interface Ly STEP 7 ProTool Lite or ProTool Figure 1 3 Components of the C7 621 The individual components integrated in the SIMATIC C7 correspond to the components that can also be used in the modular configuration consisting of an S7 300 CPU OP etc The I O expansion via the P bus interface IM 621 allows the connection of a maximum of four SIMATIC S7 300 modules The AS
32. The C7 has an integrated P bus interface for I O expansions with external S7 300 standard I Os C7 621 C7 621 AS i Control Systems 2 18 C79000 G7076 C621 01 Installing and Preparing the C7 O Modules 2 Slot number M621 4 5 6 7 E 5 qd D Digital address 124 0 125 7 Analog address 128 135 Figure 2 14 Maximum Configuration with a C7 621 EJ Modules Slot number M6241 5 6 7 8 Figure 2 15 Maximum Configuration for a C7 621 AS i C7 621 C7 621 AS i Control Systems C79000 G7076 C621 01 2 19 Installing and Preparing the C7 2 10 Memory Reset on the C7 Memory Reset on the C7 OP Memory Reset on the C7 CPU 2 20 The C7 must be turned off To reset the memory of the C7 OP follow the steps outlined below 1 ud Press and hold down the following keys at the same time Mid ESC Turn on the power to the C7 Wait until a line appears under the text FLASHTEST The C7 OP then starts up with English texts
33. able and CPU 315 DP including the run times of all instructions Controller CPU 312 314 315 315 DP C7 621 C7 621 AS i Control Systems C79000 G7076 C621 01 vil Preface Table 1 2 Further Manuals continued Manual PG 7xx Descriptions of the PG hardware Configuration and startup of the PG Possible expansions Configuration Trouble shooting SIMATIC HMI ProTool Lite SIMATIC HMI ProTool Finding Your Way Round the Manual Standards Questions viii Manual for creating configurations Working with ProTool Lite Configuration Displays and messages Downloading a configuration to the C7 Manual for creating configurations Working with ProTool Configuration Displays and messages Downloading configurations to the C7 To help you find specific information the manual is laid out as follows e At the start of both volumes of the manual you will find a complete table of contents e In the left margin of the chapters there is a subtitle indicating the content of the section e After the appendix there is a glossary listing important terminology used in the manual e At the end of the manual there is a detailed subject index The C7 control system complies with the standards described in Appendix If you have questions about the C7 control system please contact your Siemens representative There is a list with the addresses of Siemens representatives world wide in Appendix E
34. ammable Controllers Module Specifications Instruction List S7 300 Programmable Controller CPU 312 314 315 315 DP User Manual Standard Software for S7 and M7 STEP 7 Manual Statement List STL for S7 300 and S7 400 Programming Manual Ladder Logic LAD for S7 300 and S7 400 Programming Programming Manual System Software for S7 300 and S7 400 Program Design Reference Manual System Software for S7 300 and S7 400 System and Standard Functions Manual Function Block Diagram FBD for S7 300 and S7 400 Programming Programming Manual System Software for M7 300 and M7 400 Program Design 1 AS Interface Das Aktuator Sensor Interface f r die Automation Werner Kriesel O W Madelung Carl Hanser Verlag Miinchen Wien 1994 2 AS Interface Complete Specification can be ordered from the AS International Association e V Address AS International Association e V Gesch ftsf hrung Dr Otto W Madelung Auf den Broich 4A D 51519 Odenthal Germany C7 621 C7 621 AS i Control Systems C79000 G7076 C621 01 D 1 SIMATIC C7 and S7 References Tel 49 2174 40756 Fax 49 2174 41571 AS i technology is promoted by the AS International Association e V 3 SIMATIC NET Industrial Communications Networks Catalog IK 10 1997 The catalog can be ordered from any SIEMENS office C7 621 C7 621 AS i Control Systems C79000 G7076 C621 01 D 2 Glossary C7 621 C7 621 AS i Control Sy
35. ature range related to the input range e Voltage input 1 0 e Current input 10 settled state at 25 C relative to input range Status Interrupts Diagnostics Interrupts Diagnostic functions Data for Selecting a Sensor Input ranges rated values input resistance e Voltage e Current Permitted input voltage for voltage input destruction limit Permitted input current for current input destruction limit Connection of sensors e for voltage measurement e for current measurement as 2 wire transducer as 4 wire transducer 10 V 50 kQ 20 mA 105 5 Q max 30 V permanent 38 V for max 1 s pulse duty factor 1 20 34 mA possible not possible possible C7 621 C7 621 AS i Control Systems C79000 G7076 C621 01 C7 621 Analog I Os 7 4 Analog Output Contents Properties This section describes the following e The properties of analog output e The technical data of the analog output module You will learn the following e How to install and start up an analog output module e Which ranges are provided by the analog output module e The technical data for the analog output module The analog output module has the following properties e 1 Output e The output can be selected as Voltage output Current output e Resolution 12 bits including sign C7 621 C7 621 AS i Control Systems C79000 G7076 C621 01 7 15 C7 621 Analog I Os Te
36. cription Page Overview Technical Specifications Notes on the CE Approval Notes for Manufacturers of Machines C7 621 C7 621 AS i Control Systems C79000 G7076 C621 01 A 1 General Technical Specifications A 1 Technical Specifications The table contains the technical specifications of the entire unit The data for the I Os can be found in the relevant chapters Table A 1 Characteristic C7 621 C7 621 ASi Technical Specifications of the C7 Technical Specifications Order number C7 621 6ES7621 1AD00 0AE3 C7 621 ASi 6ES7621 6BD00 0AE3 Dimensions C7 168 x 120 x 70 mm H x W x D Installation dimensions 159 x 110 mm Weight C7 621 1350g C7 621 AS i 1390g Display C7 621 and C7 621 ASi STN LC display 2 lines of 20 characters each 5 mm character height LED backlit Keypad Sealed keypad with metal domes C7 621 23 keys P bus C7 621 Interface to S7 300 modules MPI interface Standard MPI interface C7 OP Flash memory C7 621 128 Kbytes configuration memory C7 621 AS i 128 Kbytes C7 621 ASi CP Bus cycle time 5 ms with 31 slaves Connection of the AS i cable Current load between terminals Ai and Ai maximum 4A ASi CP current consumption max 100 mA ASi CP supply voltage from the ASi cable According to the AS i specification C7 Power Supply Supply voltage Un e Protected against reverse polarity 24 V DC 20 4 to
37. cs How to configure an MPI network Rules for configuring the network Rules Remember the following rules when connecting nodes to an MPI network 3 4 Before interconnecting the individual nodes of the MPI network you must first assign the MPI address and the highest MPI address to each node except for the RS 485 repeater Tip Put a label with the MPI address on the housing of all the nodes in the MPI network This means that you can always see which MPI address has been assigned to which node in your system Connect up all the nodes on the MPI network as shown ir Figure 3 3 jin other words integrate the stationary programming devices and OPs directly in the MPI network This means that only the programming devices or OPs required for installation or maintenance must be connected via tap lines to the MPI network If you operate more than 32 nodes in a network the bus segments must be connected via RS 485 repeaters Ungrounded bus segments and grounded bus segments are connected via RS 485 repeaters Each RS 485 repeater in the network reduces the maximum number of nodes per bus segment This means that if there is an RS 485 repeater in a bus segment the maximum number of other nodes is reduced to 31 for this segment The number of RS 485 repeaters in the network however does not affect the maximum number of nodes on the network Up to 10 segments can be connected in series Activate the terminating resistor on the
38. ctrostatic 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 Electrostatically Sensitive Devices ESD B 1 What is ESD Definition All electronic modules are equipped with large scale integrated ICs or components Due to their design these electronic elements are very sensitive to overvoltages and thus to any electrostatic discharge These Electrostatic Sensitive Devicesare commonly referred to by the abbreviation ESD Electrostatic sensitive devices are labeled with the following symbol N Caution Electrostatic sensitive devices are subject to voltages that are far below the voltage values that can still be perceived 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 621 C7 621 AS i Control Systems B 2 C79000 G7076 C621 01 Guidelines for Handling Electrostatically 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 surro
39. d by wiring Voltage Current Measuring range selected per input Non floating C7 621 C7 621 AS i Control Systems C79000 G7076 C621 01 7 11 C7 621 Analog I Os Terminal Diagram Figure 7 7 shows the terminal diagram of the analog inputs View from the right of the C7 621 Analog inputs Voltage measurement Current measurement ef TLAn U ey Aan O RER e AT M lee i AD U ei o AI2 I o e ARM AB U o AI3 I e AB M ss 9 e Al4 U 10 _ 19 e Am Mo ee Blt EATA Ni 2 r2 S o Connection Pin name These shaded sections are irrelevant for this example Figure 7 7 Terminal Diagram of the Analog Inputs Analog Addresses For more information about analog addresses refer to Volume 2 Chapter 4 C7 621 C7 621 AS i Control Systems 7 12 C79000 G7076 C621 01 C7 621 Analog I Os Channels Three pins are grouped together to form a channel Table 7 1 Channels of the Analog Input Module Name AI2 M Reference potential AI3 U Voltage input Current input Reference potential Channel Channel 1 All Channel 2 AI2 Channel 3 AI3 Voltage input Current input Reference potential Channel 4 AI4 Connection to an Only an analog sensor can be connected to an analog input channel Analog Input Voltage Measurement Voltageo O Reference potentialO
40. d response for example in an FB C7 621 C7 621 AS i Control Systems C79000 G7076 C621 01 Glossary 5 Glossary Isolated Load Memory Memory Reset MPI MPI Network Glossary 6 In isolated input output modules the reference potentials of the control circuit and the load circuit are electrically isolated by for example optocouplers relay contactors or transformers Input output circuits can be connected to common potential The load memory is a part of the C7 CPU It contains objects load objects created by the programming device When you clear the gt C7 CPU the following memories are deleted e The gt work memory e The read write memory area of the gt load memory e The gt system memory e The gt backup memory and the user program is reloaded from the gt flash memory When you clear the gt C7 OP the following memories are deleted e The gt work memory e The gt configuration memory The C7 OP then no longer contains a user configuration The multipoint interface MPI is the programming device interface of SIMATIC S7 It allows simultaneous operation of several nodes programming devices text displays operator panels on one or several CPUs The nodes on the MPI are connected to each other via a network Each node is identified by a unique address MPI address A network connects several C7s and or S7 300s and further DTEs such as programming devices via a gt
41. de counting positioning closed loop control Grounding to ensure the intended purpose of the electrical devices Functional grounding has the effect of short circuiting interference voltages that would otherwise have unacceptable effects on the devices 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 A hardware interrupt is triggered by interrupt triggering modules as the result of certain events in the process The hardware interrupt is signaled to the C7 CPU Depending on the priority of the interrupt the corresponding organization block is then executed The STEP 7 info functions allow you to display status information on the programming device via the connected C7 during the different phases of startup and during operation of a programmable controller gt MPI The gt operating system of the C7 CPU recognizes 10 different priority classes that control execution of the user program Interrupts such as hardware interrupts belong to these priority classes When an interrupt occurs the operating system automatically calls an assigned organization block in which the user can program the desire
42. e Digital outputs 0 2 0 3 0 4 0 5 0 6 0 7 1 0 amp 1 1 1 2 1 3 1 4 1 5 1 6 1 7 Block diagram of an output Pin name L M NC NC Input DC 24V example Shaded sections are irrelevant for this Figure 6 2 Terminals and Block Diagram of the Digital Outputs C7 621 C7 621 AS i Control Systems C79000 G7076 C621 01 6 5 C7 621 Digital I Os Digital Outputs The following table shows the technical data of the digital outputs of the C7 CPU Module Specific Data Data for Selecting an Actuator Number of outputs 16 Output voltage Cable length e At signal 1 min L 0 8 V e Unshielded max 600 m Output current Voltages Currents Potential e For signal 1 i ete AREARE Rated val SA Rated load voltage L 24 V DC 0 5 A rn 93 j a Permitted range 5 mA t0 0 6 A e Reverse polarity protection no e For signal 0 max 0 5 mA Total current of the outputs residual current per group 0 0 to 0 7 or 1 0 to 1 7 Load resistance range 48 Q to 4 kQ e Upto20 C max 4 A Lamp load max 5 W o 7 DE max 2 A Parallel connection of 2 Floating no outputs Forredundant activation of Possible only outputs Status Interrupts Diagnostics Head of the same group Interrupts no i e For increased power Not possible Diagnostic functions no Activation of a digital input Possible Switching frequency e With ohmic load max 100
43. ee also EN 292 1 Paragraph 3 1 The SIMATIC PLC is part of the electrical equipment of a machine and must therefore be included by the machine manufacturer in the declaration of conformity procedure Electrical The EN 60204 1 standard safety of machinery electrical equipment of Equipment in machines Part 1 specification for general requirements applies for electrical Machinery equipment in machinery an with The table below is intended to help you with the declaration of conformity and to show which criteria apply to SIMATIC according to EN 60204 1 as of June 1993 EN 60204 1 Subject Criterion Remarks Paragraph 4 General requirements Requirements are met if the devices are mounted installed in accordance with the installation guidelines Please refer to the explanations on the previous pages Paragraph Digital input output Requirements are met 11 2 interfaces Paragraph Programmable equipment Requirements are met if the devices for protecting memory from 12 3 changes by unauthorized persons are installed in locked cabinets Paragraph Voltage tests Requirements are met 20 4 C7 621 C7 621 AS i Control Systems C79000 G7076 C621 01 A 7 C7 621 C7 621 AS i Control Systems C79000 G7076 C621 01 Guidelines for Handling Electrostatically Sensitive Devices ESD Chapter Section Overview B1 B 2 B 3 B 4 B 5 C7 621 C7 621 AS i Control Systems C79000 G7076 C621 01 Description What is ESD Ele
44. f O OP P P bus 2 13 P bus interface PG cable 1 5 2 12 Power supply unit AS i 5 2 Printer connection 2 8 Problem free installation PROFIBUS bus connector PROFIBUS bus terminal C7 621 C7 621 AS i Control Systems C79000 G7076 C621 01 Index PROFIBUS LAN cable 2 12 3 10 cabling rules characteristics fitting a bus connector 3 17 installing 3 14 Programming device connected to MPI network with tap line connecting to an MPI network for service in an MPI network 4 4 ungrounded configuration R Range of functions C7 References Remote segment RS 485 repeater terminating resistor using 3 5 RUN Run time meter 2 25 S S7 300 CPU Securing post fitting P 4 releasing 2 5 Sensor non isolated Sensors isolated SF Shared data Shield clip 2 15 C7 621 C7 621 AS i Control Systems C79000 G7076 C621 01 Shielding 2 13 Signal modules Status displa System functions menu quitting Tap line Terminating resistor bus connector order no 6ES7 3 19 example on bus connector on RS 485 repeater Transmission rate U Ungrounded configuration connecting a pro gramming device V Voltage measurement 7 10 Voltage sensor connecting Voltage sensors 7 2 W Wiring closet layout 2 13 Index 3 C7 621 C7 621 AS i Control Systems C79000 G7076 C621 01 Q ox Siemens AG AUT E 146 Ostliche Rhei
45. first and last node in a segment Before you include a new node in the MPI network you must first turn off its power supply C7 621 C7 621 AS i Control Systems C79000 G7076 C621 01 Configuring an MPI Network Recommendation for MPI Addresses on the Network Components Using the RS 485 Repeater Terminating Resistor Terminating Resistor on the Bus Connector Avoid assigning the default MPI addresses see below as fixed node addresses in the network otherwise address conflicts can occur when you replace devices or expand the network MPI addresses assigned twice e Reserve MPI address 0 for a service programming device e Reserve address 1 for the C7 OP e Reserve address 2 for the C7 CPU This avoids double assignment of MPI addresses if you install a further C7 or S7 300 with its default address for example when replacing a C7 The individual components are interconnected via bus connectors and the PROFIBUS LAN cable Remember to use a bus connector with a PG interface for nodes to which a PG might need to be connected see also To connect two segments or to extend the length of the cable use RS 485 repeaters Installing and using the repeater is explained in the reference manual 71 A cable must be terminated by its characteristic resistance This is achieved simply by activating the integrated terminating resistor on the first and last node of a network Remember that the terminating
46. for PG OP Screws for fixing to the node Preparing the To connect the bus connector 6ES7 972 0B 10 0XA0 to the PROFIBUS LAN PROFIBUS LAN cable follow the steps outlined below Cable for the Bus Connector 1 Cut the bus cable to the required length 2 Strip the insulation from the bus cable as shown in Figure 3 12 6XV1 830 0AH10 3BH10 6XV1 830 3AH10 7 5 9 7 5 9 ama ama 6 16 6 rt a gt P Figure 3 12 Preparing the LAN Cable for Connecting the Bus Connector 6ES7 972 0B 10 OXA0 3 Open the housing of the bus connector by undoing the screws in the housing 4 Remove the cover C7 621 C7 621 AS i Control Systems C79000 G7076 C621 01 3 17 Configuring an MPI Network 3 18 Fitthe green and red wires into the screw terminal block as shown in Figure 3 13 Make sure that you always fit the same wires to the same terminal A or B for example always connect the green wire to terminal A and the red wire to terminal B or vice versa Press the cable sheath between the two clips This fixes the cable in position Tighten the screw terminals for the green and red wires Bus cable connection for first and LAN cable connection for all last node on the network other nodes in the network oojoo o Oo h j
47. form the interface between the process and the programmable controller They provide 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 621 C7 621 AS i Control Systems C79000 G7076 C621 01 Glossary C7 OP Chassis Communications Processor Complete Restart Configuration Configuration Memory CP Cyclic Interrupt D Diagnostic 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 changes to the STOP mode The C7 OP has its own MPI address and is connected to the C7 CPU via the MPI Chassis ground includes all connected inactive parts of a device that cannot carry a hazardous voltage even in the event of a fault Communications processors are modules for point to point links and for LAN connections gt CP When a C7 CPU is restarted for example after selection of one of the C7 CPU Operating Modes in the System Functions menu or after turning the power ON the organization block OB 100 complete restart is executed before cyclic program execution OB1 During the 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 racks slots and for example in the case of signal modules addres
48. from the first node to the last node on the segment If you require longer cable lengths than permitted in one segment you must then use RS 485 repeaters The maximum possible cable length between RS 485 repeaters corresponds to the cable length of a segment Remember however that when using these maximum lengths no further node remote segment can be located between the two RS 485 repeaters You can connect up to nine RS 485 repeaters in series If you use an RS 485 repeater remember that this must also be included in the number of nodes when calculating the number of nodes although it is not assigned its own MPI number Figure 3 5 shows how the cable for an MPI network can be extended using RS 485 repeaters RS 485 repeater remote segment PROFIBUS LAN eee Figure 3 5 Maximum Cable Length Between Two RS 485 Repeaters Tap Lines 3 8 Tap lines are cables with which the programming devices or OPs can be connected to the network for installation or during maintenance Tap lines should be kept as short as possible The number and length of tap lines that can be used is restricted The following table shows the maximum length of tap lines per bus segment Table 3 1 Length of the Tap Lines per Segment Transmission Max Length of Number of Nodes with Tap Line Rate Ta
49. g and Preparing the C7 2 11 Status and Error LEDs on the C7 Status and Error The C7 621 or C7 621 AS i has the following status and error LEDs LEDs ESF a DCS E RUN COFRCE STOP Figure 2 19 Status and Error LEDs of the C7 621 or C7 621 AS i Meaning of the The status and error LEDs are explained in the order in which they appear on Status and Error the C7 LEDs LED Meaning Explanation SF red C7 CPU group error Lights up in the following situations e Hardware faults e Firmware errors e Programming errors e Parameter assignment errors e Math errors e Time errors Defective internal memory e J O fault error in the internal I O functions To find out the exact cause of the problem read out the diagnostic buffer using a programming device DCSV green 5V DC power supply Lights up when the internal 5V DC power supply is functioning for the C7 correctly FRCE yellow Reserved RUN green RUN or RUNP mode Lights up when the C7 is executing the user program on the C7 CPU Flashes several times during the C7 startup After the STOP LED goes off the outputs are enabled STOP yellow STOP mode on the Lights up when the C7 is not executing the user program C7 CPU Flashes at 1 second intervals when a memory reset has been requested by the operator or by the C7 CPU Flashes twice refer to installation C7 621 C7 621 AS i Control Systems C79000 G7076 C621 01 2 23 Ins
50. gramming device PC to a C7 gt A Z dp 00000 VY 00000 oo 00000 50 u I J PG cable Figure 4 1 Connecting a Programming Device PC to a C7 C7 621 C7 621 AS i Control Systems C79000 G7076 C621 01 Connecting a Programming Device PCtoaC7 4 2 Connecting a Programming Device PC to Several Nodes Possibilities Two Installation Options This section explains how to connect a programming device or PC to more than one node networked via the multipoint interface When you connect a programming device PC to more than one node you must distinguish between two different types of connection e Fixed installation of the programming device PC in the MPI network e Programming device PC connected only for installation and maintenance work Depending on the network attachment you connect the programming device PC with other nodes as follows see also Section 3 2 Network Attachment Connection Programming Device PC installed The programming device PC is permanently in the network included directly in the MPI network PG PC attached for installation and The programming device PC is maintenance connected to a node via a tap line C7 621 C7 621 AS i Control Systems C79000 G7076 C621 01 4 3 Connecting a Programming Device PCtoaC7 Permanently Installed Programming Device PC Connecting a Programming Device PC
51. grounded surface ESD footwear ESD smock Grounded ESD wristband Grounded of switchgear closet Grounded chair G oa 0 70 C7 621 C7 621 AS i Control Systems C79000 G7076 C621 01 B 5 Guidelines for Handling Electrostatically 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 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 C7 621 C7 621 AS i Control Systems B 6 C79000 G7076 C621 01 Guidelines for Handling Electrostatically Sensitive Devices ESD 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 metal clad plastic boxes or metal cans Packing Modules Always 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 621 C7 621 AS i Control Systems C79000 G7076 C621 01 B 7 C7 621 C7 621 AS i Control Systems C79000 G7076 C621 01 Safety of Electronic Controllers
52. h specific C7 CPUs Chapter C7 621 C7 621 AS i Control Systems C79000 G7076 C621 01 3 1 Configuring an MPI Network 3 1 Communication via the MPI Interface Definition Multipoint Interface MPI Transmission Rate Connectable Devices Device Node Segment Number of Nodes MPI Addresses 3 2 The C7 interface for connecting devices such as programming devices is known as the Multipoint Interface since several devices at different locations points can communicate with the C7 via this interface The transmission rate of the C7 is fixed at 187 5 Kbps You can create an MPI network by interconnecting the following devices e Programming devices PG PC 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 sections all the devices interconnected on an MPI network will be called nodes Please note that the C7 itself occupies two MPI addresses and therefore represents two nodes as follows One for the C7 CPU One for the C7 OP A segment is a section of the network between two terminating resistors A segment can include up to 32 nodes A segment is also limited by the maximum permitted cable length that depends on the transmission rate see Section 3 3 You can interconnect up to 126 addressable nodes on an MPI network To allow all the nodes connected to the MPI network to communicate with each other you must a
53. he abbreviations used in Figures 7 5 to 7 6 have the following meaning AO I Analog output current AO U Analog output voltage RL Load actuator AO M Chassis connection reference potential of the analog output L Power supply connection 24 V DC M Chassis connection of the C7 Figures 7 5 to 7 6 show how the loads actuators must be connected to the current or voltage outputs of the analog output module C7 621 C7 621 AS i Control Systems C79000 G7076 C621 01 7 7 C7 621 Analog I Os Connecting Loads To connect a load to a current output you must connect AO M to a AO I and to a Current the reference point of the analog circuit ouput Figure 7 5 shows the connection of loads to a current output of a non floating analog output module AO _ Logi DAC c7z cPU AO M Input 24V DC tF M NC NC Figure 7 5 Connecting Loads to a Current Output of a Non Floating Analog Output C7 621 C7 621 AS i Control Systems 7 8 C79000 G7076 C621 01 C7 621 Analog I Os Connecting Loads to a Voltage Output 2 Wire Connection Connecting loads to a single voltage output is only possible with a 2 wire connection The connection of loads to a voltage output using a 2 wire connection is made at the analog output AO U and the reference point of the measuring circuit AO M Figure 7 6 shows the connection of loads to a voltage
54. ical link module to connect programming devices OPs to the network PG connecting cable tap line The following PROFIBUS LAN cables are available Table 3 3 LAN Cables PROFIBUS LAN cable PROFIBUS underground cable 6XV1 830 0AH10 6XV1 830 3AH10 PROFIBUS trailing cable food drinks and tobacco industry PROFIBUS LAN cable for festoons PROFIBUS LAN cable with PE sheath for the 6XV1 830 3BH10 6XV1 830 0BH10 6XV1 830 3CH10 The PROFIBUS LAN cable is a shielded twisted pair cable with the following characteristics Table 3 4 Characteristics of the PROFIBUS LAN Cable Characteristics Characteristic resistance Values Approx 135 to 160 Q f 3 to 20 MHz DC loop resistance Operating capacitance Attenuation 115 Q km 30 nF km 0 9 dB 100 m f 200 kHz Permitted core cross section Permitted cable diameter 0 3 mm to 0 5 mm 8mm 0 5 mm C7 621 C7 621 AS i Control Systems C79000 G7076 C621 01 Configuring an MPI Network Cabling Rules When laying the PROFIBUS LAN cable make sure you keep to the following rules e Do not twist the cable e Do not stretch the cable Do not crimp the cable When laying the interior LAN cable the following restrictions must also be taken into account do outer diameter of the cable Table 3 5 Restrictions when Laying the Interior LAN Cable Sum LAERA Permitted temperature range during
55. ing within the programmable controller Examples of such faults include 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 associated organization block is then executed 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 or every minute The associated organization block is then executed STEP 7 tool Sum of the currents of all output channels of a digital output module Without electrical connection to gt ground C7 621 C7 621 AS i Control Systems C79000 G7076 C621 01 Glossary 9 Glossary User Memory The user memory contains the logic 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 ofthe C7 CPU User Program The user program contains all the statements and
56. interface allows the connection of sensors and actuators to the C7 621 C7 621 C7 621 AS i Control Systems C79000 G7076 C621 01 Product Overview The basic functions also correspond to those of a modular configuration with standard modules from the programmable controller and OP families the individual components operate independently of each other and each of the processors has its own memory C7 CPU is programmed with STEP 7 and the C7 OP is configured with ProTool Lite C7 621 AS i C7 CPU CPU memory OP memory C7 OP C7 CPU C7 0P 7 C7 AS i T MPI interface 5 STEP 7 ProTool Lite or ProTool Figure 1 4 Components of the C7 621 AS i C7 621 C7 621 AS i Control Systems 1 8 C79000 G7076 C621 01 Installing and Preparing the C7 Chapter C7 621 C7 621 AS i Control Systems C79000 G7076 C621 01 2 1 Installing and Preparing the C7 2 1 Components and Accessories of the C7 Components Supplied with the C7 621 Components of the C7 621 AS i Accessories 2 2 The following components are supplied with the C7 621 C7 621 order number 6ES7 621 1 AD00 0AE3 Grounding bar 6 shield clips Seal and 4 securing posts Set of connectors for C7 I Os with key inserts Product information The following components a
57. interface configurations and downloading them to the C7 This manual describes the hardware and software of the C7 621 and C7 621 AS i It consists of two volumes Volume 1 of the manual deals with the following topics Installing and preparing the C7 621 or C7 621 AS i Networking the C7 621 or C7 621 AS i with a programming device and other devices Connecting the digital and analog I Os Connecting the IM 621 interface module C7 621 C7 621 AS i Control Systems C79000 G7076 C621 01 Preface Conventions for C7 Scope of the Manual C7 Manual Other Manuals Required Volume 2 of the manual deals with the following topics e Startup of the C7 e Controlling with the C7 CPU e Addressing and assigning parameters for the C7 I Os e C7 diagnostics e AS i system concept e Using and operating AS i e Using the operator interface functions of the C7 To make the manual easier to read the device types C7 621 or C7 621 AS i will simply by called C7 in the manual If the device is simply called C7 in the manual the information applies to both versions of the control system Where differences occur the full name of the unit will be used This manual is valid for the following C7s a ae Order Number Versions and Higher C7 621 6ES7621 1AD00 0AE3 C7 621 AS i 6ES7621 6BD00 0AE3 This manual can be obtained under the order number 6ES7621 1AD00 8BAO This manual describes the C7 621 and C7 621 AS i To pr
58. jury to persons or damage to equipment can occur special safety requirements must be met in the system With such applications there are special system specific regulations to be taken into account when designing the control system for example VDE 0116 for furnaces With safety oriented electronic controllers the measures necessary to avoid or contain errors are based on the risk involved in the system Where the potential dangers in a system are higher the basic measures listed above are no longer adequate Additional measures for example redundancy tests checksums etc must therefore be implemented and certified for the controller DIN VDE 0801 The fail safe programmable controller S5 95F was tested by the TUV BIA and G EM III and has several certificates This along with the fail safe programmable controller S5 115F is suitable for controlling and monitoring areas where safety is a prime consideration In almost all systems and plants there are components that are responsible for safety for example emegency stop switches protective screens two hand switches To avoid having to the view the entire control system from a safety point of view a control system is normally divided into a safety and a non safety area In the non safety area there are no particular requirements in terms of safety since failure of the electronics does not affect the safety of the plant or process In the safety area only controllers or circuits can be
59. ke sure that the sealing ring on the front panel sits correctly e Choose a location for the C7 away from direct sunlight 70 gt lt 70 gt Figure 2 6 Minimum Clearances when Installing the C7 C7 621 C7 621 AS i Control Systems 2 6 C79000 G7076 C621 01 Installing and Preparing the C7 2 4 Electrical Installation and Pinouts Overview To allow various components to be connected the C7 is equipped with male and female connectors C7 621 and C7 621 Figure 2 7 illustrates the connection of the C7 power supply for a C7 621 AS i The pinouts of the connectors are shown in the following tables P bus IM 621 Functional A ground MPI Input 24 V DC Figure 2 7 Power Supply Connectors for the C7 621 Input 24V DC The pinout of the input 24V DC C7 power supply and DI DO power supply is shown below The C7 CPU C7 OP and digital analog sections C7 621 are supplied with power Table 2 1 Pinout Function DC 24V chassis M24V NC not connected NC not connected MPI Connector for MPI compliant components Functional Ground Connect functional ground As see Figure 2 7 to the closest available point of the closet chassis using a cable lug and a cable with a minimum cross sectional area of 4 mm P Bus IM 621 To connect an S7 300 expansion rack
60. l Systems C79000 G7076 C621 01 Product Overview Overview There are two versions of the C7 C7 621 With a two line display and 20 characters per line with 5 mm high characters see Figure 1 1 The C7 621 has the following components e MPI interface e Digital inputs and outputs e Analog inputs and outputs e P bus connection for the IM 621 module Figure 1 1 C7 621 Range of You can do the following with the C7 621 punenons e Run user programs that were written in STL LAD or FBD and downloaded to the C7 CPU e Process digital and analog signals using the I Os integrated on the C7 e Download and use operator interface applications that you created with the ProTool or ProTool Lite configuration tool e Using these configurations you can monitor and intervene in the process you are controlling with the user program e Connect further S7 300 modules C7 621 C7 621 AS i Control Systems 1 2 C79000 G7076 C621 01 Product Overview C7 621 Units C7 621 AS i Range of Functions The C7 has two independent units that communicate with each other via an internal MPI interface e C7 CPU with digital and analog inputs and outputs e C7OP Where necessary these units are dealt with separately in the manuals With a two line display and 20 characters per line with characters 5 mm high see Figure 1 2 The C7 621 AS i has the following
61. le Comments Schematic Connection Between MPI Interface PG cable C7 lt gt PG C7 S7 300 C7 S7 400 C7 lt gt OP PROFIBUS LAN cable The cable must C7 lt gt PG Interior cable be assembled by C7 e C7 Underground cable the user C7 lt S7 300 and bus connector C7 lt gt S7 400 without PG interface C7 lt gt OP with PG interface and PROFIBUS bus terminal RS 485 with 1 5 m and 3 m cable with PG interface and 1 5 m cable Connectors for C7 I Os Connector for C7 I Os 16 pin 000000000000000 C7 lt gt external 4 pin sensor 0 2 to 2 5 mm OO000000009000000l Conductor cross section C7 621 C7 621 AS i Control Systems 2 12 C79000 G7076 C621 01 Installing and Preparing the C7 2 5 Guidelines for Trouble Free Installation Overview Cabling Rules Wiring Closet Layout To prevent disturbances the wiring and cabling in an automation system must be installed according to certain rules If a system is poorly grounded or not shielded low frequency and high frequency interference signals can be coupled into the internal bus of the controller and cause malfunctions Interference signals or noise can be caused for example by switching relays or contactors rapid changes in current or voltage
62. levels high frequency interference signals or by different ground potentials between two sections of the system low frequency interference signals Only shielded cables are permitted for data lines and analog signal lines e Cable shields must be grounded at both ends The standard cables in the catalogs ST80 and ST70 meet these requirements e All plug in connectors must be secured by screws or locked in position e Data lines and signal lines must not be laid parallel to power lines Use a separate cable duct for signal lines with a minimum clearance of 50 cm to power lines Install devices that could introduce interference signals from the outside at the bottom of the wiring closet The grounding rail should be located directly at the point of entry to the closet so that cables that could be carrying interference signals can be connected directly to ground The shields of all shielded cables must make contact here If the signal lines have a double shield only the outer shield makes contact here Install long signal lines along the walls of the wiring closet To reduce interference it is important to plan the layout of the wiring closet in keeping with the EMC guidelines All the chassis connections in the wiring closet must be established with large conductor cross sections and contact should be over a large an area as possible Analog devices installed in the wiring closet should be insulated and grounded at one point in the cl
63. mming device PC is connected PG cable tap line PROFIBUS LAN cable A aD 00000 VY ooooo oo 00000 on Figure 4 3 Attaching a Programming Device PC to an MPI Network C7 621 C7 621 AS i Control Systems C79000 G7076 C621 01 4 5 Connecting a Programming Device PCtoaC7 Attaching a Programming Device to an Ungrounded Node Connecting a Grounded Programming Device to the MPI 4 6 If you install the nodes of a subnet or an S7 300 without grounding only an ungrounded programming device can be connected to the subnet or to the S7 300 You want to use ungrounded nodes If the MPI is grounded on the PG you must include an RS 485 repeater between the nodes and the PG The ungrounded nodes must be connected to bus segment 2 if the PG is connected to bus segment 1 terminals Al B1 or the programming device OP interface see Chapter 7 in the reference manual Module Data Figure 4 4 shows the RS 485 repeater as an interface between a grounded and an ungrounded node in an MPI subnet Bus segment 1 signals grounded Bus segment 2 signals ungrounded Figure 4 4 PG Connected to an Ungrounded S7 300 C7 621 C7 621 AS i Control Systems C79000 G7076 C621 01 Attachi
64. n free e The unit is labeled using lasers in other words no plates or labels e The plastic materials are marked according to DIN 54840 e The small dimensions of the unit mean that less material is used less components due to integration in ASICs Due to its low levels of toxic materials the SIMATIC C7 621 is suitable for recycling For more information about recycling and disposal of your old SIMATIC unit contact the following department Siemens Aktiensgesellschaft Technische Dienstleistungen ANL A 44 Kreislaufwirtschaft Postfach 3240 D 91052 Erlangen Germany Telefon 0 91 31 7 3 33 19 Telefax 0 91 31 7 2 66 43 This Siemens department will advise you individually and provides a comprehensive and flexible disposal system for a fixed price Following disposal you receive reports about the dismantling of the units and the constituent materials C7 621 C7 621 AS i Control Systems A 6 C79000 G7076 C621 01 General Technical Specifications A 3 Notes for Manufacturers of Machines Introduction The SIMATIC programmable controller system is not a machine as defined in the EU directive for machinery There is therefore no declaration of conformity for SIMATIC within the frame work of the EU Machinery Directive 89 392 EEC EU Machinery The EU Machinery Directive 89 392 EEC regulates requirments relating to Directive machinery A machine is defined here as an assembly of interconnected parts or 89 392 EEC components s
65. nbriickenstr 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 Machinery Food Instrument and Control Nonelectrical Machinery u 021020010200 Petrochemical C7 621 C7 621 AS i Control Systems C79000 G7076 C621 01 Gy Be a EE 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 ER Ten Da Please rate the quality of the graphics tables Additional comments C7 621 C7 621 AS i Control Systems 2 C79000 G7076 C621 01
66. ng a C7 621 AS i Note The information in this chapter applies only to the C7 621 AS i C7 621 C7 621 AS i Control Systems C79000 G7076 C621 01 5 1 Attaching a C7 621 AS i 5 1 AS i Attachments Properties The C7 621 AS i has connectors for two AS i cables that are connected internally in the C7 The maximum load on the contacts is 4 A You can connect the following to the AS i connectors e Actuators sensors e AS i power supply unit AS i CP Power The AS i CP is not supplied with power via the 24V DC input The AS i CP Supply must be supplied with power via terminals AS i and AS i AS i Power Supply Connect the power supply unit either directly to the C7 621 AS i or supply Unit power to the AS i CP in the C7 621 AS i by connecting the AS i power supply in the network with the actuators or sensors Connections and Figure 5 1 shows the connections and block diagram of the AS i terminals Block Diagram 1 View from the right side of the C7 621 AS i AS i terminals blue Woes brown Sensor 1 Sensor 2 AS i power supply unit Block diagram of the AS i terminals Figure 5 1 Connections and Block Diagram of the AS i Terminals C7 621 C7 621 AS i Control Systems 5 2 C79000 G7076 C621 01 Attaching a C7 621 AS i 5 2 The AS i Cable Overview Attaching to the AS i Cable Using Other 2 Wire Cables Operation and Display Elements The
67. ng devices Monitoring and modifying user programs for example variables Monitoring and modifying the CPU for example mode memory reset compress memory protection levels Manual STL for S7 300 400 Programming or Manual LAD for S7 300 400 Programming Reference Manual System Software for S7 300 and S7 400 System and Standard Functions User Manual Standard Software for S7 Converting S5 Programs Reference manuals for programming with STL or LAD e Basics of working with STL LAD for example structure of STL LAD numerical formats syntax e Description of all instructions in STEP 7 with program examples e Description of the various ways of addressing in STEP 7 with examples Description of all integrated functions on the CPUs Description of the CPU internal registers Detailed description of e All the standard functions FCs integrated in STEP 7 e All the system functions SFCs integrated in the operating system of the CPU This manual provides information about converting STEP 5 programs to STEP 7 e Working with the S5 S7 converter Rules for conversion e Using converted STEP 5 standard function blocks in STEP 7 Manual General Index General index of all the manuals in the documentation package vi C7 621 C7 621 AS i Control Systems C79000 G7076 C621 01 Preface Further Appendix D of Volume 2 of this manual contains a list with further sources
68. nline by selecting the special display Time Date if this was configured C7 621 C7 621 AS i Control Systems C79000 G7076 C621 01 Installing and Preparing the C7 Run Time Meter The C7 CPU is equipped with a run time meter This allows you to count the operating hours of the C7 CPU or a resource it controls You program the run time meter in the user program using the SFCs 2 SET_RTM 3 CTRL_RTM and 4 READ_RTM see reference manual 235 C7 621 C7 621 AS i Control Systems C79000 G7076 C621 01 2 25 C7 621 C7 621 AS i Control Systems C79000 G7076 C621 01 Configuring an MPI Network In this Chapter This chapter describes how to configure an MPI network You will learn the following Which communication options are available to you with an MPI network The components to which you can connect the nodes of an MPI network The maximum and minimum cable lengths you can use How to connect the PROFIBUS LAN cable to the bus connector How to use an RS 485 repeater Special considerations when connecting a programming device Before the individual nodes on an MPI network can communicate with each other you must assign MPI addresses to them How you assign MPI addresses and the rules to be observed are described in the user manual 231 for S7 and in the ProTool documentation for the C7 OP Volume 2 of this manual Section 3 4 10 contains the information you require for configuring communication wit
69. of Information information about the S7 300 and programmable logic controllers Table 1 2 Further Manuals Programming Manual This manual contains basic information about designing STEP 7 programs System Software for S7 300 and e S7 400 Program Design Introduction to the efficient solution of programming tasks using a PC programming device and STEP 7 e How the CPUs function for example memory concept access to inputs and outputs addressing blocks data types data management Description of STEP 7 data management e Using data types of STEP 7 e Using linear and structured programming with program examples e Using block call instructions e Overview of using STEP 7 tools for developing projects with an extensive example e Using test and diagnostic functions of the CPUs in user programs for example error OBs status word Manual This manual describes the hardware of the S7 300 2 7 3 hs if En oo le d e Configuring the S7 300 RER e Installing the S7 300 Installation e Wiring and preparing the S7 300 for startup e Properties and technical data of the S7 300 modules Reference Manual This manual describes the hardware of the S7 300 modules Programmable Controllers e Analog modules S7 300 M7 300 Module Data e Digital modules e Interface modules e Properties and technical data of the S7 300 modules Instruction List This describes the set of instructions of the CPU 312 CPU 314 CPU 315 S7 300 Programm
70. of Volume 2 of the manual If you have questions or comments about the manual itself please complete and return the remarks form You will find this at the end of Volume 2 C7 621 C7 621 AS i Control Systems C79000 G7076 C621 01 Contents 1 Product Overview 4 ae en h 1 2 Installing and Preparing the C7 zuusensseannnnen nennen nenn nn nen 2 1 2 1 Components and Accessories of the 07 0 cee een eeee eee 2 2 Installing a C7 2 ccc ccc ccc cence een eee ence tence eens 2 3 LACS ofthe G aan ee part ara 2 4 Electrical Installation and Pinouts 000 cece eee eee ee 2 5 Guidelines for Trouble Free Installation 0 ccc eee eee eee 2 13 2 6 Connecting Up Cables 00 cece cece eee 2 15 2 7 Connector Key Inserts 060 c cece eee nennen 2 16 2 8 Contrast see patie Madina tiie riesen died 2 17 2 9 I O Expansion with the IM 621 2 c cece tenets 2 18 2 10 Memory Reset on the C7 0 0 cece eee eee 2 20 2 11 Status and Error LEDs on the C7 0 cece eee eee 2 23 2 12 Clocks on the 67 u a ee ken eb ee 2 24 3 Configuring an MPI Network 00ceee eee e eee eee eee eee 3 1 Communication via the MPI Interface 00 cee seen 3 2 Rules for Configuring an MPI Network 0202 00e sense 3 3 Cable Lengths 0 00 c ccc eee nennen E nennen 3 4 Network Components 6 0 cece eee tee teen eee 3 5 Bus Gonn6ctors asrasin p
71. ogram expand and configure a C7 you also require the following manuals C7 621 C7 621 AS i Control Systems C79000 G7076 C621 01 Preface Programming Expanding Configuring Assigning Parameters STL for S7 300 400 Harware and Installation ProTool Lite LAD for S7 300 400 Module Specifications ProTool System and Standard Functions STEP7 User Manual root eee nn En OS Mesh Siar geen fund sip te of GM Sister Bo fo aa oa If required C7 621 AS i To familiarize yourself with the AS i system we recommend the following Brochure procedure e You should certainly read the AS i brochure Actuator Sensor Interface Order number E20001 P285 A497 V2 X 7600 This brochure can be ordered from all Siemens offices C7 621 C7 621 AS i Control Systems C79000 G7076 C621 01 vV Preface Table 1 1 STEP 7 Documentation Package Order Number 6ES7810 4AA00 8AA0 Manual Standard Software for S7 and M7 STEP 7 User Manual Topics This provides information about working with the STEP 7 tools e Installation and startup of STEP 7 on a PC programming device e Using the tools Managing projects and files Configuring the S7 300 and assigning parameters Assigning symbolic names for user programs Creating and debugging user programs in STL LAD Creating data blocks Configuring communication between CPUs Downloading saving and deleting user programs on CPUs and programmi
72. ons are not taken Caution indicates that minor personal injury or property damage can result if 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 qualified 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 SIMATIC and SMATIC NET are registered trademarks of SIEMENS AG Third parties using for their own purposes any other names in this document which refer to trademarks might infringe upon the rights of the trademark owners Copyright Siemens AG 1997 All rights reserved The reproduction transmission or use of this document or its contents is not pe
73. op p I 4 E4 h wel E Ea repeater g P BEE Connecting cable PG Only connected during installation maintenance via a tap line Terminating resistor activated Figure 3 3 Activating Terminating Resistors in an MPI Network C7 621 C7 621 AS i Control Systems 3 6 C79000 G7076 C621 01 Configuring an MPI Network Example of an MPI Figure 3 4 shows the basic configuration of an MPI subnet using the rules Subnet listed above S7 300 S7 300 PG S7 300 CP Ton u PROFI 00000 E BUS Bases subnet Only during installation maintenance connected via a tap line with the default MPI address Connected later to the MPI subnet with default MPI address Apart from the MPI address here address 7 the CP also has a PROFIBUS address 0 x MPI addresses of the nodes Terminating resistor activated Figure 3 4 Example of an MPI Subnet C7 621 C7 621 AS i Control Systems C79000 G7076 C621 01 3 7 Configuring an MPI Network 3 3 Cable Lengths Segment in an MPI Network Longer Cable Lengths The maximum cable length in one segment of an MPI network is 50 m These 50 m represent the distance
74. oset use copper band Always use metal parts with the same electrical characteristics in the cabinet do not use aluminum due to the danger of oxidization C7 621 C7 621 AS i Control Systems C79000 G7076 C621 01 2 13 Installing and Preparing the C7 Allthe doors and metal panels side rear and top panels of the wiring closet should be connected at least three times to the closet frame keep the connections short and make sure that contact is over a large area with bare unpainted metal Note If you use equipment that generates high electrostatic voltages for example textile machinery the grounding cables of the machine parts producing high voltage interference signals should be connected to a separate ground surface grounding with building construction reinforcement from the grounding point of the wiring closet The manual 70 contains installation guidelines and deals with measures for protecting from interference Overvoltage Measures to prevent overvoltage and lightning protection are described in the Protection guidelines in 70 C7 621 C7 621 AS i Control Systems 2 14 C79000 G7076 C621 01 Installing and Preparing the C7 2 6 Connecting Up Cables Overview Procedure This chapter describes how to connect the shield of shielded signal cables with ground The shield is connected directly to the ground terminal of the C7 via a grounding bar Fit the grounding bar and the shield clips s
75. p Line per Lengths of Segment 1 5 m or 1 6m 187 5 Kbps C7 621 C7 621 AS i Control Systems C79000 G7076 C621 01 Configuring an MPI Network Example Figure 3 6 shows a possible MPI network configuration The example illustrates the distances that can be achieved in an MPI network A RS 485 repeater ie max 2 1000 m 107 oO is 3 5 or RS 485 repeater A max 50 m Terminating resistor activated PG connected via tap line for maintenance 0 x MPI addresses of the nodes Figure 3 6 Cable Lengths in an MPI Network C7 621 C7 621 AS i Control Systems C79000 G7076 C621 01 3 9 Configuring an MPI Network 3 4 Network Components Purpose PROFIBUS LAN Cable Characteristics of the PROFIBUS LAN cable 3 10 Table 3 2 Network Components Purpose to install the network You require network components in the following situations Component PROFIBUS LAN cable to connect a node to the network to amplify the signal to link segments to convert signals for fiber optic transmission only PROFIBUS DP networks Bus connector RS 485 repeater Opt
76. ration e User control program when data from the C7 CPU can no longer be read Follow the steps outlined below e The C7 is removed in the reverse order from that in which it was installed e Connect a programming device PC to the MPI interface e Save the user program from the C7 CPU on a programming device PC using STEP 7 If the C7 CPU is defective and the user program can no longer be read remove the C7 without attempting to back up the data e The configuration loaded on the C7 cannot be read This must be available on a programming device or PC As soon as you have a new C7 available install it as follows 1 Mechanical and electrical installation is as described in the manual 2 Connect a programming device PC to the MPI interface Set the highest MPI address 3 Reset the C7 memory as described 4 Transfer the previously saved user program from the programming device PC with the corresponding data to the C7 CPU using STEP 7 5 Download you configuration to the C7 using ProTool Lite 6 Start the user program C7 621 C7 621 AS i Control Systems C79000 G7076 C621 01 General Technical Specifications What are General This chapter lists the general technical specifications of the C7 Technical Specifications These general technical specifications include the standards with which the C7 complies the test values that it meets and the test criteria with which the C7 was tested Chapter Section Des
77. re supplied with the C7 621 AS i C7 621 AS i order number 6ES7 621 6BD00 0AE3 Seal and 4 securing posts Set of connectors for AS i and C7 power supply with key inserts Product information The following components can be ordered as accessories for the C7 Manual C7 621 C7 621 AS i Control Systems consisting of two volumes in the following languages German 6ES7 621 1AD00 8AA0 English 6ES7 621 1AD00 8BAO French 6ES7 621 1AD00 8CAO Italian 6ES7 621 1AD00 8DAO Spanish 6ES7 621 1 AD00 8EAO Service package seal and 4 securing posts 6ES7 623 1AE00 3AA0 Set of connectors for C7 I Os with key inserts 6ES7 623 1 AE00 4AA0 IM 621 interface module with cable 6ES7 621 1 AD00 6AE3 C7 621 C7 621 AS i Control Systems C79000 G7076 C621 01 Installing and Preparing the C7 2 2 Installing a C7 The Installation The C7 is designed for fixed installation in a switching panel or wiring closet door To install the C7 follow the steps outlined below Action Cut out a section of the switching panel as shown in Figure 2 Insert the sealing ring behind the front panel see Figure 2 1 Insert the C7 into the cutout in the switching panel Insert the 4 securing posts see into the guides pushing them until the spring engages Screw the 4 securing screws supplied with the C7 into the 4 securing posts seen 24 Tighten the 4 screws with a screwdriver tightening torque 0 6 Nm
78. resistor requires power to be effective Make sure that the power supply to the nodes on which the terminating resistor is activated is on during startup and operation Figure 3 1 shows you the switch settings for the terminating resistor on the bus connector Terminating E on Terminating resistor on resistor on off E Figure 3 1 Terminating Resistor on the Bus Connector On and Off C7 621 C7 621 AS i Control Systems C79000 G7076 C621 01 3 5 Configuring an MPI Network Terminating Figure 3 2 shows the switches on the RS 485 repeater for activating the Resistor onthe RS terminating resistor 485 Repeater DC 24V L M PEM5 4 88868 e ll 6 ABAB 85868 mo Terminating resistor ON ell bus segment 1 R on M Terminating resistor SIEMENS bus segment 2 eeee ABAB 8 Figure 3 2 Terminating Resistor on the RS 485 Repeater Figure 3 3 shows a possible MPI configuration in which the terminating Example of Termination in an resistor must be activated MPI Network C7 PG AL S7 300 S7 300 S7 300 IT pp or E77 Rs405 EO
79. rminal Diagram Figure 7 10 shows the terminal diagram of the analog output module View from the right of the C7 621 Voltage output Current output Analog output l4 o 15 v n 16 amp E Connection These shaded sections are irrelevant for Pin name this example Figure 7 10 Terminal Diagram of the Analog Outputs C7 621 C7 621 AS i Control Systems C79000 G7076 C621 01 C7 621 Analog I Os Analog Output The following table contains the technical data of the analog output of the C7 CPU Module Specific Data Data for Selecting an Actuator Number of outputs 1 Output ranges rated values Cable length Voltage 10V shielded max 100 m Current 20 mA Analog Value Formation Load resistance Resolution including 11 bits sign For voltage output min 2 0 KQ overflow Capacitive load max 0 1 uF e For current output max 300 Q Conversion time 40 us Settling time e For ohmic load 0 6 ms e For capacitive load 1 0 ms e For inductive load 0 5 ms Substitute values applied no Noise Suppression Error Limits Error limits in the entire temperature range related to the output area e Voltage output e Current output Error limit error limit at 25 C related to the output area 0 8 0 9 e Voltage output e Current output Temperature error related to 0 01 K output range 0 06 Lineari
80. rmitted withoutexpress written authority Offenders will be liable for damages Allrights including rights created by patentgrantorregistration of a utility model or design are reserved Siemens AG Bereich Automatisierungstechnik Industrial Automation S ystems Postfach 4848 D 90327 Nuernberg 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 Subject to change without prior notice Siemens AG 1997 Siemens Aktiengesellschaft C79000 G7076 C621 Preface Purpose Audience Contents of the Manual This manual will help you with the following tasks Installing and wiring up a C7 621 or C7 621 AS i Volume 1 Assigning parameters to the CPU of the C7 621 or C7 621 AS i downloading a user program to the CPU and starting up Volume 2 Making the settings required on the C7 621 and C7 621 AS i for operation and using the operator interface functions Volume 2 This manual is intended for two different groups of readers Volume 1 Users installing the C7 mechanically and electrically on site and preparing the C7 so that it is ready for operation Volume 2 Users creating control programs and operator
81. ses The configuration memory is a flash memory containing the configuration data and is 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 programmable controller A distinction is made between various types of communications processors depending on their tasks for example CPs for signaling and logging for point to point connections for the operator interface COROS for bus connections SMATIC NET and for diagnostics and mass storage applications A cyclic interrupt is generated periodically by the C7 CPU at selected intervals It triggers execution of the assigned organization block The diagnostic buffer is a buffered memory area on the C7 CPU in which diagnostic events are entered in the order in which they occur C7 621 C7 621 AS i Control Systems C79000 G7076 C621 01 Glossary 3 Glossary Diagnostic Event Diagnostic Functions Diagnostic Interrupt Diagnostics Equipotential Bonding Error Display Flash EPROM Flash Memory Glossary 4 Diagnostics events include errors in a digital function in the C7 system errors in the C7 caused for example by programming errors or operating mode transitions The diagnostic functions cover the entire system diagnostics and include the detection evaluation and signaling of errors faults within the C7 Modules with diagnostic capability signal de
82. sors This section describes how to connect sensors and points to note when connecting them You should use shielded twisted pair cables for analog signals This reduces the effects of noise The shield of the analog cables should be grounded at both ends If there are potential differences between the ends of the cable an equipotential current can flow through the shield and cause disturbances to the analog signals In this case you should only ground the cable at one end A potential difference Ucm common mode voltage may occur between the cable AIx M of the input channels and the reference point of the measuring circuit M This potential difference must however not exceed the permitted limit value see technical data If it is possible that the permitted value for Ucm will be exceeded or if you cannot measure the potential difference exactly you must connect AIx M with M This also applies to unused inputs The following abbreviations are used in Figures 7 1 to 7 4 AIx X Measuring cable AIx U or AIx I AIx M Reference potential of the measuring cable M Chassis connection of C7 621 and Reference potential of the analog measuring circuit functional earth A UcM Potential difference between inputs and M Isolated sensors are not connected to the local ground They can be operated as floating sensors Due to the local conditions or noise potential differences Ucm static or dynamic can occur between the measuring cables AI
83. ssign an MPI address to each node and you must also set a highest MPI address Before you network the nodes you must assign the MPI addresses individually on a programming device Note The RS 485 repeater is not assigned an MPI address C7 621 C7 621 AS i Control Systems C79000 G7076 C621 01 Configuring an MPI Network Default MPI The following table shows the default MPI addresses set on the devices when Addresses of the they are shipped C7 Node Device Default Default Highest MPI MPI Address Address 0 15 1 Depends on the OP 2 15 Rules for MPI When assigning MPI addresses keep to the following rules Addresses e Each MPI address within an MPI network must be unique e The highest possible MPI address must be higher than the highest actual MPI address and must be set to the same value on all node xception connecting a programming device to several nodes se Chapter 4 CPU CPU A CPU can communicate with up to four C7 CPUs or S7 300 CPUs These Communication can exchange shared data with each other For more detailed information about shared data refer to the manual 231 GD Circles The transmission and reception of shared data is organized in GD circles Each C7 CPU can be included in up to four different GD circles C7 621 C7 621 AS i Control Systems C79000 G7076 C621 01 3 3 Configuring an MPI Network 3 2 Rules for Configuring an MPI Network Overview This section deals with the following topi
84. stems C79000 G7076 C621 01 Glossary 1 Glossary A Analog Input Output Module B Backup Memory Baud Rate transmission rate Bus C7 620 C7 AS i C7 CPU C7 I Os Glossary 2 Analog input output modules convert analog process values for example input output temperatures into digital values that can be further processed by the C7 CPU or they convert digital values into analog manipulated variables The backup memory guarantees backup of memory areas of the gt C7 621 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 bps A bus is a transmission medium that connects two or more nodes with each other Data transmission can be serial or parallel over electrical conductors or fiber optic cable Name of the control system family of devices C7 62x The C7 AS i is the C7 component that controls communication with the actuators and sensors via the AS interface It also handles the internal C7 data exchange between the C7 AS i and C7 CPU or C7 OP The C7 CPU central processing unit contains the controller and arithmetic unit memory operating system and programming ports The C7 CPU is independent of the gt C7 OP The C7 CPU has its own MPI address and is connected with the C7 OP via the MPI The C7 I Os gt signal module
85. t yet entered a password this will be requested 3 Enter the password this is explained in Volume 2 Section 7 6 C7 621 C7 621 AS i Control Systems C79000 G7076 C621 01 2 21 Installing and Preparing the C7 2 22 The following menu is displayed MODE STOP RUNP RUN STOP MRES E SFEZIDC5V E RUN y LED displays CO FRCE E STOP Figure 2 18 C7 CPU Modes Menu with Function Keys 4 Select the STOP function by pressing F3 The STOP LED lights up 5 Select the MRES Memory Reset function by pressing F4 and wait until the STOP LED goes off twice 6 Immediately after the STOP LED lights up again Select STOP and immediately afterwards MRES within 1 second If there is more than 1 second between pressing the two keys the memory reset is not performed Result When the STOP LED flashes quickly for approximately 3 seconds and is then lit continuously again the memory on the C7 CPU has been reset Ifthe STOP LED of the C7 lights up without first flashing then repeat Steps 4 and 5 7 Following the memory reset you must set the C7 CPU explicitly to STOP or RUN RUNP otherwise the C7 CPU is still set to MRES Note A memory reset does not affect the content of the C7 CPU flash memory How to delete the content of the flash memory is described in Volume 2 Section 3 8 C7 621 C7 621 AS i Control Systems C79000 G7076 C621 01 Installin
86. talling and Preparing the C7 2 12 Clocks on the C7 Overview Clock on the C7 CPU Default C7 CPU Time Master Clock Setting and Reading Out the C7 CPU Clock Clock Reaction to Power Off Clock on the C7 OP Default OP Time Setting and Reading Out the C7 OP Clock 2 24 The C7 devices have two software clocks e One clock on the C7 CPU e One clock in the C7 OP The clock of the C7 CPU is a software clock This clock is independent of the clock of the C7 OP When the unit is shipped the following value is set DT 1994 0 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 You set and read the time as follows e With a programming device using STEP 7 or e Inthe STEP 7 user program using SFC 0 SET_CLK With SFC 1 READ_CLK you can read out the current time refer to the reference manual 235 If the power is turned off the current time is saved in the non volatile memory When power is turned on again the clock continues to run starting from the saved time When the power is turned off the C7 CPU clock itself stops The clock on the C7 OP is independent of the clock on the C7 CPU When the power is turned off the C7 OP clock stops When the device is shipped the clock is set to the following value 01 01 94 00 00 You set the time as follows e Using a job in the user program and interface block or e O
87. tand Clock Communication CPU CPU 3 3 Components for C7 for MPI network 3 5 3 10 Configuration memory Glossary 3 Connecting cable 1 5 CPU CPU CPU communication CSA Current measurement 7 10 Current sensors 7 2 Index 1 Index D DI DO status displa explanation 6 7 6 7 E EU directive machines F Flash EPROM Glossary 4 Flash memory Glossary 4 Four wire transducer connecting measurement range FRCE 2 23 Functional ground 2 7 G GD circle Grounding 2 13 Grounding bar installing 2 15 Grounding rail Group error CPU H Highest MPI address 3 2 IM 621 connection 2 10 IM 621 interface module 1 5 Input DC 24V Installation problem free Installation guidelines Installing aLAN cable with bus connector order no 6ES7 3 15 with PROFIBUS bus connector 3 14 Installing C7 Interference signals 2 13 Index 2 K Keying connectors 2 16 Machines with SIMATIC A 7 Male and female connectors view Manufacturers of machines Master clock Measurement ranges analog input 7 10 Memory reset C7 CPU Minimum clearance C7 MPI 3 2 MPI address highest B 2 of the C7 recommendation rules MPI interface pinout 2 7 MPI network cable lengths components configuration rules connecting a een device 4 2 example of configuration tap lines N Network components Node number o
88. te The values of the DI DO are read in at one second intervals and displayed Changes taking place between these two points are not displayed a ESC You quit the DI DO status display by pressing the key If you do not quit explicitly the C7 621 changes automatically to the C7 621 idle message after approximately one minute You quit the system functions menu by pressing the 2 key C7 621 C7 621 AS i Control Systems C79000 G7076 C621 01 6 7 C7 621 C7 621 AS i Control Systems C79000 G7076 C621 01 C7 621 Analog I Os Chapter Section Description Page Overview 7 1 Connecting Sensors to Analog Inputs 7 2 7 1 1 Connecting Voltage and Current Sensors 7 5 12 Connecting Loads Actuators to the Analog Output 73 Analog Input 73 1 Properties and Technical Data of the Analog Input 71 4 Analog Output 7 15 Ungrounded It is not possible to include the C7 in an ungrounded configuration Configuration Note The information in this section applies only to the C7 621 The C7 621 AS i does not have analog I Os C7 621 C7 621 AS i Control Systems C79000 G7076 C621 01 7 1 C7 621 Analog I Os 7 1 Connecting Sensors to Analog Inputs Overview Cables for Analog Signals Connecting Sensors to Analog Inputs Abbreviations Isolated Sensors 7 2 Depending on the type of measurement you can connect various sensors to the analog inputs e Voltage sensors e Current sen
89. tected system errors to the gt C7 CPU using diagnostics interrupts Diagnostic functions System diagnostics Electrical connection equipotential bonding conductor that keeps the bodies of electrical devices to the same or approximately the same potential as extraneous conducting bodies to prevent interference or hazardous voltages arising between the bodies Error display is one of the possible responses of the operating system to runtime errors The other possible responses are Error response in the user program STOP status of the C7 CPU FEPROMS correspond in their function to the electrically erasable EEPROMs but they can be erased much faster FEPROM flash erasable programmable read only memory The following data can be stored in a flash EPROM safe from power failure e The gt user program e The gt parameters that determine the behavior of the gt C7 CPU and the T O functions of the C7 gt Flash EPROM C7 621 C7 621 AS i Control Systems C79000 G7076 C621 01 Glossary FM Functional Ground Ground Grounding H Hardware Interrupt Information Function Interface Multipoint Interrupt An FM function module is a module that relieves the CPU of the S7 300 and S7 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 inclu
90. tic module parameters cannot be modified by the user program They can only be modified with the software tool S7 Configuration for example input delay of a digital signal input module gt Programming device gt Programmable logic controller C7 621 C7 621 AS i Control Systems C79000 G7076 C621 01 Glossary 7 Glossary Process Image Programmable Logic Controller Programming Device RAM Reference Ground Reference Potential S Scan Cycle Time Signal Module Glossary 8 The signal states of the digital inputs and outputs are stored in the C7 CPU in a process image There are two process images the process image input table PII 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 Programmable controllers 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 controller 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 engineering Programming devices are essentially personal computers that are
91. tion Tested in compliance with DIN IEC 68 2 6 Operation 10 to 58 Hz amplitude 0 075 58 to 500 Hz acceleration 9 8m s2 Storage transport 5 to 9 Hz amplitude 3 5mm 9 to 500 Hz acceleration 9 8 m s Shock Tested in compliance with DIN IEC 68 2 29 Operation Semi sinusoidal 100m s 10 g 16 ms 100 shocks Storage transport 250 m s 25 g 6 ms 1000 shocks Resistance to fire hazards Connector strips v2 Connector strips in housing vo 24 V DC Power Supply IN Relevant for the USA and Canada A 4 The entire 24 V DC power supply for the C7 621 and C7 621 ASi operating voltage load voltage relay power supply etc must be provided as a safety extra low voltage SELV Warning Danger of personal injury and damage to equipment If you do not implement the 24 V DC power supply for the C7 621 or C7 621 ASi correctly this may result in damage to components of your automation system and to personal injury Use only safety extra low voltage SELV for the 24 V DC power supply to your C7 621 or C7 621 ASi If the device has one of the follow labels the corresponding approval has been obtained Underwriters Laboratories UL complying with the UL 508 standard AY UL Recognition Mark E Canadian Standard Association CSA complying with C 22 2 No 142 standard lt A gt APPROVED FM Standards No 3611 3600 3810 APPROVED for use in Class I Division 2 Group A B C D indoor hazardous locations C7 621
92. to four M12 terminals and transition from the AS i cable to one M12 terminal How to use the AS i CP and the meaning of the displays on the AS i module are described in Volume 2 Section 6 4 C7 621 C7 621 AS i Control Systems C79000 G7076 C621 01 5 3 C7 621 C7 621 AS i Control Systems C79000 G7076 C621 01 C7 621 Digital I Os Chapter Overview Digital Outputs Status Displays of the DI DO Note The information this chapter applies only to the C7 621 The C7 621 AS i does not have digital I Os C7 621 C7 621 AS i Control Systems C79000 G7076 C621 01 6 1 C7 621 Digital I Os 6 1 Digital Inputs Characteristics The digital inputs have the following characteristics e 16 inputs non floating e Rated input voltage 24V DC e Suitable for example for switches and 2 wire proximity switches BEROs Terminals and Figure 6 1 shows the terminals and block diagram of the digital inputs Block Diagram Block diagram of an input L M NC x These shaded sections NC are irrelevant for this Input DC 24V example Figure 6 1 Terminals and Block Diagram of the Digital Inputs C7 621 C7 621 AS i Control Systems 6 2 C79000 G7076 C621 01 C7 621 Digital Os Digital Input The following table shows the technical data of the digital inputs of the C7 CPU Module Specific Data Status Interrupt Diagnostics Number of inputs 16 Interrupts no
93. ty error related to output range Reproducibility accuracy in 0 05 settled state at 25 C related to output range Output ripple Range 0 to 50 0 05 kHz related to output range Status Interrupts Diagnostics Interrupts none Diagnostic functions none C7 621 C7 621 AS i Control Systems C79000 G7076 C621 01 Inductive load Voltage output e Short circuit protection e Short circuit current Current output e Idle voltage Immunity limit against externally applied voltages currents e Voltages at output against Mana e Current Connection of actuators e For voltage output 2 wire connection 4 wire connection e For current output 2 wire connection max 0 1 mH yes max 40 mA max 16 V max 15 V permanent 15 V for max 1 s pulse duty factor 1 20 max 30 mA Possible Not possible Possible 7 17 C7 621 C7 621 AS i Control Systems C79000 G7076 C621 01 Maintenance C7 621 C7 621 AS i Control Systems C79000 G7076 C621 01 8 1 Maintenance Replacing the C7 Requirements Removal Installation 8 2 The C7 is not designed for field repair A defective C7 must therefore be replaced To replace a C7 the following requirements must be met Hardware e Programming device PC with MPI interface e Suitable connecting cable Development tools e STEP7 e ProTool or ProTool Lite User software stored outside the C7 e User configu
94. ua einer 3 5 1 PROFIBUS Bus Connector 222222222 ccc eee teen eens 3 5 2 Bus Connector 6ES7 972 0B 20 OXA0 0 cece eee 3 5 3 Bus Connector 6ES7 972 0B 10 OXA0 0 0 2 cee 3 5 4 Connecting the Bus Connector to a Module 0 0c cece eee 4 Connecting a Programming Device PC toaC7 0e eee eee 4 1 Connecting a Programming Device PC toaC7 005 4 2 4 2 Connecting a Programming Device PC to Several Nodes 4 3 5 Attaching a C7 621 AS i 6 eee e cece eee nenne nenn etna nenn nenn 5 1 5 1 AS Attachments een dran an 5 2 5 2 The AS Cable uns nee aan 5 3 C7 621 C7 621 AS i Control Systems C79000 G7076 C621 01 IX Contents General Technical Specifications 6 C7 621 Digital Os 2 uuneenannenunnnnnnnnenennenennnnnennnnennnne nenn 6 1 Digital Inputs 222 eee eens 6 2 6 2 Digital QUIDUTS 231 2420 settee er a ade 6 4 6 3 Status Displays of the DI DO 0 0 cece 6 7 7 7 621 Analog OS srra nia a Ed en 7 1 7 1 Connecting Sensors to Analog Inputs 0 cee eee eee eee 7 2 7 1 1 Connecting Voltage and Current Sensors 0 00 cece eee eee 7 5 7 2 Connecting Loads Actuators to the Analog Output 7 7 7 3 Analog Input ee noe ee 3404 ee ede ee bey ee ned ed eae ee Dee 7 10 7 3 1 Properties and Technical Data of the Analog Input Module 7 11 7 4 Analog Outp t nenn ne bee E 7 15 8 Maintenance
95. undings can be charged electrostatically In this way voltages up to 15000 V can build up whereas minor changes i e up to 100 V are not relevant 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 of 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 621 C7 621 AS i Control Systems C79000 G7076 C621 01 B 3 Guidelines for Handling Electrostatically 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 tendency to build up electrostatic charges easily Make sure that the personnel working surfaces and packaging are sufficiently grounded when handling electrostatically sensitive devices If possible avoid any contact with electrostatic sensitive devices
96. upplied with the C7 621 as follows 1 2 Remove the two screws from the C7 621 as shown in Figure 2 11 Position the grounding bar as shown in Figure 2 11 and fasten it in position with the two screws previously removed Fit the shield clips on to the grounding bar as shown in Figure 2 11 Press the stripped cable into the shield clips so that the shield of the cable makes the best possible contact LEA AZ x Shield clip u a Figure 2 11 C7 621 with Grounding Bar and Shield Clips C7 621 C7 621 AS i Control Systems C79000 G7076 C621 01 2 15 Installing and Preparing the C7 2 7 Connector Key Inserts Overview Keying Connectors 2 16 You can order a set of connectors with key inserts for a C7 see Section 2 1 Accessories How you key or code the connectors is explained below With the solid keys and the profile keys see Figure 2 12 you can configure a connector so that it cannot be inserted in the wrong receptacle without having to sacrifice a pin Follow the steps below 1 Insert solid keys into the grooves on the connector 2 Insert the profile keys into the cutouts on the housing Where solid and profile keys face each other the connector cannot be inserted If the solid and profile keys do not face each other the connector can be inserted Figure 2 12 Preventing Insertion of the Wrong Connector
97. used that meet the relevant safety regulations Areas are normally divided as follows 1 For controls with few safety requirements for example machine controls The conventional programmable controller handles machine control itself parts where greater safety is required are controlled by the fail safe mini PLC S5 95F 2 For controls with clearly delineated safety areas for example chemical plants cable cars The non safety area is once again implemented using conventional programmable controllers the safety areas are controlled by tested fail safe controllers S5 115F or several S5 95Fs The entire plant is implemented using a fail safe control concept 3 For controllers where safety aspects are dominant for example furnace systems The entire control system is fail safe Even when the planning of an electronic control system achieves a high degree of safety for example with a multichannel configuration the instructions in the manuals must nevertheless be followed carefully Incorrect operation can lead to mechanisms intended to prevent serious situations being put out of action or to unforeseen dangers C7 621 C7 621 AS i Control Systems C79000 G7076 C621 01 SIMATIC C7 and S7 References References References for AS i 70 71V 12 231 232 233 234 235 236 280 Manual 7 300 Programmable Controller Hardware and Installation Reference Manual S7 300 M7 300 Progr
98. when Service is Required 4 4 You connect the permanently installed PG PC in the MPI network to one or more nodes of the MPI network according to the rules explained in Section Figure 4 2 shows a C7 network with two C7s The two C7s are interconnected using a PROFIBUS LAN cable Figure 4 2 Connecting a PG PC to more than One C7 If there is no stationary programming device PC we recommend the following procedure To attach a programming device PC to an MPI network with an Unknown node address it is advisable to set the following address on the service programming device PC e MPI address 0 e Highest MPI address 126 Following this use the STEP 7 function Hardware Configuration to find out the highest MPI address in the MPI network and then set the highest MPI address on the programming device PC to the same value as that of the MPI network C7 621 C7 621 AS i Control Systems C79000 G7076 C621 01 Connecting a Programming Device PCtoaC7 Programming For installation or maintenance purposes attach the programming device PC Device PC for to anode of the MPI network using a tap line The bus connector of this node Installation or must have a PG interface see also Section 3 5 Maintenance Figure 4 3 shows two networked C7s to which a progra
99. x M of the input channels and the reference point of the measuring circuit M This potential difference must however not exceed the maximum permitted value If it is possible that the value will exceed the maximum permitted value for Ucp or if you cannot measure the potential difference exactly you must connect AIx M with M C7 621 C7 621 AS i Control Systems C79000 G7076 C621 01 C7 621 Analog I Os Figure 7 1 shows the connection of isolated sensors to a non floating analog input Analog inputs ts C7 621 N Al1 U U a O Al1 M Isolated ADEI lidi sensors Al2 U C7 CPU 7 Al2 M Recommended Uci connection Ll yy M Input 24V DC 5 M d NC d NC A Grounding bar Functional ground Figure 7 1 Connection of Isolated Sensors to a Non Floating Analog Input Non Isolated Non isolated sensors are connected to ground locally Due to local conditions Sensors or noise potential differences static or dynamic can occur between the locally distributed measuring points To avoid these potential differences you should install equipotential bonding cables between the measuring points Potential differences Ucy static or dynamic can also occur between the measuring cables AIx M of the input channels and the reference point of the measuring circuit M This potential difference must not exceed the maximum permitted value If it

6es7621-1ad02-0ae3 klawiatura simatic c7

Contents

Download Pdf Manuals

Related Search

Related Contents