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USER MANUAL DIN Rail Mounting Temperature Controller
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1. Tempe Eng rature Typ STD 7 Range drift PPM c 1200 01 400 0 500 DIN 200 800 400 RTD Pt100 43760 op 200 0 400 0 800 330 1470 400 eS ERO ELECTRONIC TITLE RFS User Manual C LINEAR INPUTS Read out programmable from 2000 to 4000 Decimal point programmable in any position Burn out the instrument shows the burn out condition as an underrange condition for 4 20 mA 0 60 mV and 12 60 mV input types Input Temperature Sensor Type impedance drift ppm C of full span 0 20 mA lt 5Q Current 4 20 mA 250 300 0 60mV gt IMA Voltage 5 60 mv gt IMQ 290 D LOGIC INPUT The instrument is equipped with one programmable input from contact voltage free NOTES 1 Use an external dry contact capable of switching 5 mA 7 5 V DC 2 The instrument needs 100 ms to recognize a contact status variation 3 The logic input is isolated by the measuring input C CURRENT TRANSFORMER INPUT Input current 50 mA rms 50 60 Hz Read out selectable between 10 and 100 A Resolution 0 1 Afor 20 A range 1 A for all the other ranges Active period for relay output NO or NC programmable for SSR drive output logic level 1 or O programmable Minimum time duration of the active period 50 ms SET POINTS This instrument allows to use 2 set points main SP and auxiliary SP SP2 Set point transfer The transfer betwe
2. OC LF OC LF TB1 0 TB2 0 6000 6000 6000 6000 6000 6000 ce ERO ELECTRONIC Page GB 36 51 TITLE RFS User Manual 170 1U0 RFS 000 Notes about set point management NOTE 1 In order to make clear the result of different set of the various parameter we have added the the following diagram Main SP 1403 Main volatile SP 1404 Ramp up TSP 1408 Working Target set set point point 1401 Ramp down 1402 1409 Auxiliary SP 1405 SP selection by serial link 1412 SP selection source 1411 Digital input R 1301 O NOTE the main SP 1403 is a value memorized in EEPROM while the main volatile SP 1404 is a value memorized in RAM For this reason when you make a profile setting the set point value by serial link e g with a supervisory system it is advisable to use the main volatile SP instead of the main SP the EEPROM has a limited number of write actions allowed while the RAM has no limit Selected SP indicator 1400 Ramp hold OFF NOTE 2 Parameters 1413 1414 and 1415 allow you to increase or decrease a set point without knowing the current set point value This solution allows you to modify of the same quantity the set point Main set point volatile set point or auxiliary set point respectively of different instruments at the same time eS ERO ELECTRONIC TITLE RFS User Manual Page
3. L Scale Alarm 2 threshold H Scale for process alarm oc oc 1801 Note 0 500 LFILF PV for band alarm 500 500 for deviation alarm Available only if AL2 is configured Alarm 2 hysteresis Range from 0 1 to 10 0 of the range selected with 1103 and 1104 OC OC 1802 parameters or 1 LSD 12000 LFILF 1 Note Available only if AL2 is configured Out 3 function Range 0 Output not used for alarm 2 1 Output used as alarm 2 output Process alarm 2 Output used as alarm 2 output OC C Band alarm ASS alle Oa 3 Output used as alarm 2 output Deviation alarm Note Alarm 2 and CT alarm outputs are in OR condition 1803 TB1 0 TB2 0 Alarm 2 operating mode Range 0 High alarm outside for band 1804 alarm OC C 1 Low alarm inside for band LFILF alarm Note Available only if AL2 is configured TB1 0 TB2 0 Alarm 2 reset type Range 1805 0 Automatic reset OC C 1 Manual reset LFILF Note Available only if AL2 is configured TB1 0 TB2 0 ce ERO ELECTRONIC Page GB 44 51 TITLE RFS User Manual 170 IUO RFS 000 Modbus Address Default DESCRIPTION Value moz gt y O ma ma zas omo Alarm 2 action Range 0 Direct action relay energized in alarm condition 1806 1 Reverse action relay OC C TB1 de energized in alarm LFILF TB2 condition Note This configuration is the same of that at address 1209 Available only if AL
4. 1 Number of bits low byte Error check CRC 16 high byte Error check CRC 16 low byte Error check CRC 16 high byte 1 Byte counter n REIS 1 The Data field indicates the bits requested the bit with lower address is in the bit O of the first byte the next is in the bit 1 and so on The eventual don t care bits necessary to complete the last byte are equal to O Example Ask to slave at address 3 3h the status of 4 4h bits starting from bit 2000 7DOh Digital outputs group Request from master to slave Range Slave address Function code Bit starting address high byte Byte counter Error check CRC 16 low byte Error check CRC 16 high byte Bit starting address low byte Number of bits high byte Number of bits low byte Error check CRC 16 low byte Error check CRC 16 high byte The byte in Data field DAh 000001010b means Bit 2000 status 0 Status of output 1 output not energized Bit 2001 status 1 Status of output 2 output energized Bit 2002 status 0 Status of output 3 output not energized Bit 2003 status 1 Status of output 4 output energized Don t care 0 Don t care 0 Don t care 0 0 Don t care ce ERO ELECTRONIC Page GB 17 51 TITLE RFS User Manual 170 IUO RFS 000 Function code 3 and 4 Words reading These function codes are used by the master unit to read a consecutive group of words 16 bit which contain the value of th
5. Range 0 Measure updated 1 Measure not updated Notes 1 Available only when the option is programmed 2 If the OFF period is lower than 150 ms the instrument is not able to perform this measure This flag shows the status of the measure OUT 1 Load current measured value in Ampere Note Available only when the option is programmed OUT 1 Load current measure updating flag Range 0 Measure updated 1 Measure not updated Notes 1 Available only when the option is programmed 2 If the ON period is lower than 150 ms the instrument is not able to perform this measure This flag shows the status of the measure Threshold for alarm on Leakage current in Ampere Note Available only when the option is programmed Threshold for alarm on Load current in Ampere Note Available only when the option is programmed Active period of the load for the current transformer Range 0 Option not provided 1 The load is energized when Out is active Relay ON or SSR 1 2 The load is energized when Out is not active Relay OFF or SSR 0 R Ww A R R N E I D ae G A T E E D E C O O CT O O CT O oc OC TB1 50 0 H Scale E E CT 152 250 oc oc TB1 100 O H Scale E CT 89 100 OC C TB1 0 LFILF TB2 0 eS ERO ELECTRONIC TITLE RFS User Manual Page GB 32 51 170 1U0 RFS 000 R Ww A RIR M DESCRIPTION N EID
6. during the first part of SMART algorithm TUNE when returning in AUTO the device will be forced automatically in the second part of the SMART algorithm ADAPTIVE At power up the device will be in the AUTO mode or as it was left prior to power shut down depending on 1521 configuration selection Note When start up occurs in Manual mode the power output OUT1 OUT2 is set to 0 SMART function It is used to automatically optimize the control action When the SMART function is enabled it is possible to read but not to write the control parameters Pb Ti Td Disabling the SMART function the instrument maintains the actual set of control parameters and it enables parameter modification eS ERO ELECTRONIC TITLE RFS User Manual NOTES When ON OFF control is programmed Pb 0 the SMART function is disabled Synchronous pre heating This function eliminates differential heating during machine start up due to differing heating rates of individual heaters This function operate as follows At instrument start up all controllers use the first measured value as initial set point and than they start a ramp from this set point to the final set point previously programmed All common alarms are set as band alarms and are connected with the common logic input In this way if the measure of one loop goes out of the tracking band the common alarm will close the common logic input and the ramp execution of all th
7. 9 200 Baud akRwWDN Hu Hn n ou ou 1 Note See note on Serial link device address parameter OC OC LF LF TB1 5 TB2 5 Byte format for serial link Range 0 8 bits even parity 1 8 bits odd parity 2102 2 8 bits without parity Note See note on Serial link device address parameter OC OC LFILF TB1 2 TB2 2 eS ERO ELECTRONIC TITLE RFS User Manual GENERAL SPECIFICATIONS Case Polycarbonate dark grey color self extinguishing degree V2 according to UL 746C Protection IP20 Terminals 23 screw terminals screw M3 for cables from 0 25 to 2 5 mm or from AWG 22 to AWG 14 with connections diagram Dimensions DIN 43700 120 x 101 x 22 5 mm Weight of the RFS 140 g of the common I O unit 110 g Power supply 24 V AC DC 10 of the nominal value Power consumption 6 VA max 4 W Sampling time 250 ms for linear inputs 500 ms for TC and RTD inputs Accuracy 0 2 f s v 1 digit 25 C ambient temperature Common mode rejection gt 120 dB 50 60 Hz Normal mode rejection gt 60 dB 50 60 Hz Electromagnetic compatibility and safety requirements This instrument is marked CE Therefore it is conforming to council directives 89 336 EEC and to council directives 73 23 EEC and 93 68 EEC reference harmonized standard EN 61010 1 Installation category over voltage category CAT II 50V Pollution degree 2 Operative temper
8. the set bit means 0001h Reading boolean variables as words a reset variable is reported as 0000h a set one is reported as 0001h Writing boolean variables as words send 0000h to reset the variable send a value different from 0000h and 8000h to set the variable Page GB 23 51 170 1U0 RFS 000 11 Communication parameters at start up When it is desired to regain the control of an instrument with an unknown set of communication parameter you can operate in two different way 11 1 Make use of the CPI adapter The instrument automatically recognizes the CPI adapter and it will use the following communication parameter set Address 255 Baud rate 19200 Bite format 8 bit without parity NOTE this is a fixed parameters set and it is not configurable 11 2 At power up the instrument will start using the same communication parameter set used in presence of the CPI adapter If the instrument receives a correct Modbus request within the first 3 seconds it will continue to operate with the same communication parameters If during the 3 seconds time out the instrument doesn t receive a correct request it will set up the communication interface with the parameter values previously programmed ce ERO ELECTRONIC Page GB 24 51 TITLE RFS User Manual 170 IUO RFS 000 ERROR REPLY If the error check is wrong or the function code is not implemented or a buffer overflow has been received
9. 1Dh Input variable without filter 29 C Word 1101 value 29 1Dh Filtered input variable 29 C Word 1102 value 3 3h Input type and range value for main input Tc J 100 1000 C ce ERO ELECTRONIC Page GB 18 51 TITLE RFS User Manual 170 IUO RFS 000 Function code 5 Single bit writing By using this command the master unit can change the state of one bit of the slave unit ___ Command from mastertoslave Reply from slave to master 1 Rage Bye Rage Byte Slave address 0 255 1 Slave address 1 255 1 Function code 05 1 Functioncode 05 1 Bit address high byte 1 Bitaddress high byte 1 Bit address low byte 1 1 Bitaddress low byte 1 Data 2 Daa 2 Error check CRC 16 low byte 1 Error check CRC 16 low byte Error check CRC 16 high byte 1 Error check CRC 16 high byte To use the address 0 see note 1 Broadcast address in the Notes section Data field Oh to reset the bit FFOOh to set the bit Example Set bit 1003 3EBh of slave at address 35 23h Manual reset of an alarm condition in Device management group i i Error check CRC 16 low byte Error check CRC 16 high byte Error check CRC 16 low byte Error check CRC 16 high byte eS ERO ELECTRONIC TITLE RFS User Manual Function code 6 Single word writin
10. AL1 is configured 1 100 OC LF OC LF OC LF OC LF LF TB1 0 TB2 0 OC LF LF TB1 0 TB2 0 ce ERO ELECTRONIC Page GB 42 51 TITLE RFS User Manual 170 IUO RFS 000 Modbus Default Value DESCRIPTION Address moz zm omo ma zzaes omo Alarm 1 action Range 0 Direct action relay energized in alarm condition 1706 1 Reverse action relay de energized in alarm condition Note Available only if AL1 is configured oc C TB1 7 1 LF LF TB2 1 Alarm 1 stand by mask function Range 0 No standby function 1 Standby function Notes 1 Available only if AL1 is configured 2 Ifthe alarm is programmed as band or deviation alarm this function masks the alarm condition after a set point 1707 change or at the instrument start up OC C TB1 0 until the process variable reaches the LF LF TB2 0 alarm threshold plus or minus hysteresis If the alarm is programmed as a process alarm this function masks the alarm condition at instrument start up until process variable reaches the alarm threshold plus or minus hysteresis ce ERO ELECTRONIC Page GB 43 51 TITLE RFS User Manual 170 IUO RFS 000 ALARM 2 OUTPUT 3 GROUP 1800 Modbus Address DESCRIPTION moz z O ma ma zas omo Default Value Alarm 2 status Range 0 No alarm 1800 1 Alarm Note Available only if AL2 is configured O
11. Control group Command from master to slave Reply from slave to master Range Slave address Function code Word starting address high byte low byte Error check CRC 16 low byte Error check CRC 16 high byte Word starting address Number of words high byte Number of words low byte Error check CRC 16 low byte Error check CRC 16 high byte eS ERO ELECTRONIC TITLE RFS User Manual NOTES 1 Broadcast address When using the writing codes 5 6 15 and 16 the slave address 0 is permitted in this case all the slaves connected accept the command but do not give any reply 2 Words format Every time the information transfer is performed by using 2 bytes 1 word of 16 bits the first byte transmitted is the most significant one For the negative numbers the two complement format is used 3 Reply time The slave will start to send a reply from 2 ms to 700 ms after the end of the request detected by counting the received bytes 4 Decimal digits The decimal point that may be present in the value is ignored Example The value 204 6 is transmitted as 2046 O7FEh The value 12 50 is transmitted as 1250 FB1Eh The number of decimal digits if significant is stated for each parameter see the DEC column in the parameters tables Some parameters have a variable number of decimal digits according to the configuration as described below PV number of decimal digits
12. During generation of the CRC 16 each byte is exclusive ORed with the register contents Then the result is shifted to the right with a zero filled into the most significant bit MSB position If the LSB was a 1 the register is then exclusive ORed with a preset fixed value If the LSB was a 0 no exclusive OR takes place This process is repeated until eight shifts have been performed After the last shift the next byte is exclusive ORed with the register s current value and the process repeats for eight more shifts as described above The final contents of the register after all the characters of the message have been applied is the CRC 16 value A procedure for generating a CRC 16 is 1 Load a 16 bit register CRC 16 register with FFFFh all 1 s 2 Exclusive OR the first byte of the message with the low byte of the CRC 16 register Put the result in the CRC 16 register 3 Shift the CRC 16 register one bit to the right toward the LSB zero filling the MSB Extract and examine the LSB 4 If the LSB was 0 Repeat Step 3 another shift If the LSB was 1 Exclusive OR the CRC 16 register with the polynomial value A001h 1010 0000 0000 0001b 5 Repeat Steps 3 and 4 until 8 shifts have been performed When this is done a complete byte will have been processed 6 Repeat Steps 2 through 5 for the next byte of the message Continue doing this until all bytes have been processed 7 The final contents of the CRC 16 registe
13. ELECTRONIC TITLE RFS User Manual Modbus Address DESCRIPTION Page GB 27 51 170 1U0 RFS 000 moz zau U ma ma zzs Default Value omo Filtered Input variable in engineering units Notes When a measure error is detected the Data field contains one of these error codes 905 30004 7534h Under range 30005 7535h Over range or open input 30014 753Eh Error on reference junction temperature 25 C or gt 75 C 30050 7562h Error on internal auto zero Same as address 1101 PV Input variable without filter in engineering units Notes When a measure error is detected the Data field contains one of these error codes 906 30004 7534h Under range 30005 7535h Over range or open input 30014 753Eh Error on reference junction temperature 25 C or gt 75 C 30050 7562h Error on internal auto zero Same as address 1100 Working set point in engineering units Same as address 1402 Main set point in engineering units Same as address 1403 Auxiliary set point in engineering units Same as address 1405 Target set point in engineering units Same as address 1401 Main volatile set point in engineering units Same as address 1404 907 908 910 911 SP L SPH OC LF SP L SPH OC LF SP L SPH PV PV PV PV PV PV ce ERO ELECTRONIC Page GB 28 51 TITLE RFS User
14. GB 37 51 170 1U0 RFS 000 CONTROL OUTPUT 1 GROUP 1500 R Ww A RR Mad DESCRIPTION N E D Default Value 2a G A T E E D EC 1500 OUT 1 value in 96 0 100 O O OP 1501 OUT 2 value in 96 0 100 O O OP 32767 1502 Pid out value 32767 O O OP Auto manual function 1503 Range OC OC TB1 0 0 Auto LFILF TB2 0 1 Manual Enable disable control output 1504 Range OC OC TB1 0 0 Control enabled LFI LF TB2 0 1 Control disabled 10 1000 for H only 15 1000 OC OC TB1 40 1505 Proportional band in of the input span for HIC LEILF 1 TB2 40 0 for ON OFF Hysteresis for ON OFF control mode in 96 of the input span OC OC TB1 5 Togo Note Available only when Proportional band is set to TUE LF LF TB2 5 Zero Integral time in seconds 4507 Note 4 1200 OC OC 0 TB1 240 The value 32767 7FFFh means that the integral LF LF TB2 240 action is excluded 0 100 i M for H only OC OC TB1 30 1508 Integral pre load in of the output span 100 100 LFI LF 0 TB2 30 for H C fac OC OC TB1 60 1509 Derivative time in seconds 0 600 LFILF 0 TB2 60 OC OC TB1 7 15 1510 Out 1 Cycle time in seconds 1 200 LE LE 0 TB2 45 Relative cooling gain OC OC TB1 100 1511 20 100 2 Note Available only for HC control LFILF TB2 100 Dead band overlap between H C outputs in of the proport
15. Manual 170 IUO RFS 000 DEVICE MANAGEMENT GROUP 1000 Modbus Address DESCRIPTION moz za O mza ma zas omo Device mode Range 0 Operative mode 1 Configuration mode 2 Calibration mode 3 reserved Note OC OC When operative mode is set a Parameter EE TF Check Operation is automatically performed If an error is found the device answers with error code 10 and doesn t enable the new status Otherwise the device stops any other address test answers immediately resets and restarts in operative mode The set in Calibration mode is allowed only from configuration mode Execute the PCO Parameter Check Operation It returns O if no error was found otherwise it OC returns the Modbus address of the first wrong LF parameter Load default parameter values Range 0 No operation 1 Load default European table TB1 2 7 Load default American table TB2 Note C Using this command the parameters related with the serial link will change immediately but the new values will become operative only when the instrument comes back to the operative mode Manual reset of the alarm conditions Range O 0 No operation 1 Alarm Reset 1003 Data Management in Operative Mode Range 1999 0 Only valid data are transmitted 2 9 1 All the data are transmitted ce ERO ELECTRONIC Page GB 29 51 TITLE RFS User Manual 170 IUO RFS 000 PROCESS VARIABLE I
16. apply on process variable 1105 CT number of decimal digits apply on current transformer read out 1211 OP number of decimal digits apply on output power 1524 5 Local remote status In this controller unlike other Ero Electronic devices the Local remote status setting isn t required This means that the master unit can modify any parameters without set any local remote status bit moreover no 3 seconds timeout will be applied Page GB 22 51 170 1U0 RFS 000 6 Operative mode Operative mode indicates the normal functioning status of the device controller In operative mode the master can read the whole parameters the device returns 8000h for the meaningless one for example the threshold of a not configured alarm The write operation is allowed only for a restricted number of parameters for example isn t permitted to change the input configuration In operative mode the controller checks the write data to be within the allowable limits for example the main set point must be inside the set point low and high limits 7 Configuration mode Configuration mode is intended to set up the device then the controller doesn t work In configuration mode the master can read and write the whole parameters In configuration mode unlike the operative mode the device returns always a value for each parameters even for the meaningless one this is intended to clone exactly the unit Moreover no check
17. calculated by 45 oc C TB1 10 1607 the smart algorithm 1 E Note Available only for HC control Max vale LEJ EE TEARI 1608 Min value of integral time calculated by the 4 120 OC C 0 TB1 50 smart algorithm in seconds LFILF TB2 50 eS ERO ELECTRONIC TITLE RFS User Manual Page GB 41 51 170 1U0 RFS 000 ALARM 1 OUTPUT 2 GROUP 1700 Modbus Address 1701 DESCRIPTION Alarm 1 status Range 0 No alarm 1 Alarm Note Available only if AL1 is configured Alarm 1 threshold Note Available only if AL1 is configured moz z orm ma zs omo Default Value O L Scale H Scale for Process alarm 0 500 for Band alarm 500 500 for deviation alarm OC LF OC LF PV 1702 1703 1704 1705 Alarm 1 hysteresis Range from 0 196 to 10 0 96 of the range selected with 1103 and 1104 parameters or 1 LSD Note Available only if AL1 is configured Out 2 function Range 0 Output not used 1 Output used as alarm 1 output Process alarm 2 Output used as alarm 1 output Band alarm 3 Output used as alarm 1 output Deviation alarm 4 Output used as cooling output Alarm 1 operating mode Range 0 High alarm outside for band alarm 1 Low alarm inside for band alarm Note Available only if AL1 is configured Alarm 1 reset type Range 0 Automatic reset 1 Manual reset Note Available only if
18. eS ERO ELECTRONIC TITLE RFS User Manual Modbus Address 1410 1411 1412 1413 1414 1415 Page GB 35 51 170 1U0 RFS 000 DESCRIPTION m 2Z gt DW O ma ma zzaes omo Default Value Operative set point alignment at start up Range 0 The operative set point will be aligned to the set point selected by digital input or by the serial link 1 The operative set point will be aligned to the actual measured value and then it will reach the selected set point with the programmed ramp Address 1408 1409 NOTE if the instrument detect an out of range or an error condition on the measured value it will operate as described for 1410 0 Set point selection source Range 0 Set point selected by digital input 1 Set point selected by serial link address 1412 Set point selected by serial link Range 0 Main set point 1 Auxiliary set point Delta applied to the Main set point in engineering units This value will be algebraically added to the main set point address 1403 and then limited Delta applied to the volatile set point in engineering units This value will be algebraically added to main set point address 1404 and then limited Delta applied to the Auxiliary set point in engineering units This value will be algebraically added to auxiliary set point address 1405 and then limited OC OC LF LF OC LF TB1 0 TB2 0 TB1 0 TB2 0
19. the 3 wires must be the same Page GB 5 51 170 1U0 RFS 000 LINEAR INPUT 20 22 20 22 Fig 6 A mA INPUT WIRING D Shield Fig 6 8 60mV INPUT WIRING NOTE 1 Don t run input wires together with power cables 2 When shielded cable is used it should be grounded at one side only to avoid ground loop currents 3 For mV input pay attention to the line resistance a high line resistance may cause measurement errors 4 The input impedance is equal to 5 O for 20 mA input gt 1 MQ for 60 mV input ES ERO ELECTRONIC TITLE RFS User Manual LOGIC INPUT Safety note 1 Do not run logic input wiring together with power cables 2 Use an external dry contact capable of switching 5 mA 7 5 V DC 3 The instrument needs 100 ms to recognize a contact status variation 4 The logic inputs is isolated by the measuring input 6 e v 7 Fig 7 LOGIC INPUT WIRING This logic input can be programmed in order to perform the following functions a to switch from main set point to auxiliary set point and viceversa logic input op set point open main SP close auxiliary SP SP2 b to hold the set point ramp execution logic input Ramp open RUN close HOLD CURRENT TRANSFORMER INPUT Current transformer Load Fig 8 CURRENT TRANSFORMER INPUT W
20. with Ethyl Alcohol pure or denatured CoH5OH Isopropil Alcohol pure or denatured CH3 2CHOH or Water H2O 4 Verify that there are no loose terminals 5 Before re power the instrument be sure that it is perfectly dry 6 Turn the instrument ON
21. zen G A TIE E D E C CT Alarm reset type Range 1208 0 Automatic reset ee e T 1 Manual reset Note Available only when the option is programmed CT Alarm action Range 0 Direct action relay energized in alarm condition OC C TB4 1 1209 1 Reverse action relay de energized in LFILF TB2 4 alarm condition Note Available only when the option is programmed This configuration is the same made by address 1806 CT range in Ampere It is the nominal primary current of the current OC C TB1 10 etr transformer used TUTO LF LF TB2 10 Note Available only when the option is programmed Number of decimal figures for the CT measurement The accuracy of the CT measurement is equal to 0 1 A if the CT range is lower than 20 A oc TB4 2 4 1211 1A if the CT range is higher than 20 A LF TB2 4 So that When 1210 parameter is lower than 20 A the 1211 parameter will be equal to 1 When 1210 parameter is higher than 20 A the 1211 parameter will be equal to O Note CT alarm and Alarm 2 are in OR condition on the output 3 eS ERO ELECTRONIC TITLE RFS User Manual DIGITAL INPUT GROUP 1300 Page GB 33 51 170 1U0 RFS 000 R Ww A RIR Viste DESCRIPTION NIE ITTMD E zs GA T E E D E C Digital input status 1300 Range OC 0 Input not active contact open LF 1 7 Input active contact closed Digital input function Range 0 Option not used 13
22. 01 1 Digital input used for main set OC C TB1 0 point auxiliary set point selection Input LF LF TB2 0 active means Auxiliary set point 2 Digital input used to hold the set point ramp execution Input active means ramp hold eS ERO ELECTRONIC TITLE RFS User Manual SETPOINT GROUP 1400 Page GB 34 51 170 1U0 RFS 000 R WwW A RIR Modbus DESCRIPTION N E rabo ee Address G ATE Value E D E C Selected set point 1400 Range 0 Main set point O 1 Auxiliary set point 1401 Target set point in engineering units O PV 1402 Working set point in engineering units O PV 1403 Main set point in engineering units pipi vin E e PV x 1404 Volatile set point in engineering units pis ee OO PV 3 i 1405 Auxiliary set point in engineering units SP L Limit OC OC PV TB120 Note Available only if selectable SP H Limit LF LF TB2 0 1406 Set point high limit in engineering units jest e UE PV n bir 1407 Set point low limit in engineering units CE UM ve UE PV e x 1 100 T TB1 Rate of change for positive set point 32767 OC OC 7FFFh 1408 variation PV x 3 7FFFh LF LF TB2 in engineering units per minute for step 7FFFh change 1 100 TB1 Rate of change for negative set point 32767 ocloc 7FFFh 1409 variation PV l 7FFFh LF LF TB2 in engineering units per minute for step 7FFFh change
23. 2 is configured Alarm 2 stand by mask function Range O No standby function 1 Standby function Notes 1 Available only if AL2 is configured 2 Ifthe alarm is programmed as band or deviation alarm this function masks the alarm condition after a set point 1807 change or at the instrument start up oc C TB1 0 until the process variable reaches the LF LF TB2 0 alarm threshold plus or minus hysteresis If the alarm is programmed as a process alarm this function masks the alarm condition at instrument start up until process variable reaches the alarm threshold plus or minus hysteresis ce ERO ELECTRONIC Page GB 45 51 TITLE RFS User Manual 170 IUO RFS 000 ALARM 3 OUTPUT 4 GROUP 1900 Modbus Addr ss DESCRIPTION moz za oOo pma ma zzs omo Default Value Alarm 3 status Range 0 No alarm 1900 1 Alarm Note Available only if AL3 is configured O L Scale Alarm 3 threshold H Scale for Process alarm oc oc 1991 Mie 0 500 OC aC PV Es for Band alarm 500 500 for deviation alarm Available only if AL3 is configured Alarm 3 hysteresis Range from 0 196 to 10 0 96 of the range see selected with 1103 and 1104 C OC 1792 parameters or 1 LSD 155100 LF LF i Note Available only if AL3 is configured Out 4 function Range 0 Output not used for alarm 3 1 Output used as alarm 3 output 1903 Process alarm 2 Output used a
24. IRING Note 1 The input impedance is equal to 12 Q 2 The maximum input current is equal to 50 mA rms 50 60 Hz Page GB 6 51 170 1U0 RFS 000 RELAY OUTPUTS 2 v OUT1 9 118 NO 19 c OUT2 15 NO 16 NC 11 G OUT3 12 NO 13 Fig 9 RELAY OUTPUTS WIRING The contact rating of the OUT 1 2 and 3 is 3A 250V AC on resistive load The number of operations is 3 x 109 at specified rating NOTES 1 To avoid electrical shock connect power line at the end of the wiring procedure 2 For power connections use No 16 AWG or larger wires rated for at last 75 C 3 Use copper conductors only 4 Don t run input wires together with power cables All relay contacts are protected by varistor against inductive load with inductive component up to 0 5 A The following recommendations avoid serious problems which may occur when using relay output for driving inductive loads eS ERO ELECTRONIC TITLE RFS User Manual INDUCTIVE LOADS High voltage transients may occur switching inductive loads Through the internal contacts these transients may introduce disturbances which can affect the performance of the instrument For all the outputs the internal protection varistor assures a correct protection up to 0 5 A of inductive component The same problem may occur when a switch is used in series with the internal contacts
25. IT This unit can perform 3 different functions 1 Itis the relay output of all the common alarm connected by the BUS cable 2 It performs the connection of the common logic input of all the units connected by the BUS cable 3 Itis the natural connection of the power supply and of the serial link for all the units connected by the BUS cable ojojojo o EUH Das b 12345 N X ojojo 1 1 1 1 l 1 1 l I I I I 1 Fig 16 COMMON l O UNIT TERMINAL BLOCK For serial interface and power supply connection see fig 12 and 13 and relative notes Common logic input Safety note 1 Do not run logic input wiring together with power cables 2 Use an external dry contact capable of switching 100 mA 7 5 V DC minimum 3 The instrument needs 100 ms to recognize a contact status variation 4 The logic input is isolated by the measuring input IN 1 24 e e 25 Fig 17 COMMON LOGIC INPUT WIRING Page GB 9 51 170 1U0 RFS 000 DIN D IN D IN D IN OE So Me AN be AN bs AE 6 6 6 6 24 a tee l T 7 p T 25 d d RFS RFS RFS RFS Fig 18 A Common logic input OPEN DIN D IN D IN DIN COMMO
26. LE RFS User Manual 170 IUO RFS 000 Function code 16 Multiple words writing This function code is used by the master unit to write a consecutive group of words The master unit can change a maximum of 20 words at a time Reply from slave to master Range Slave address 0 255 Slave address 1 255 1 Function code 16 i Number of words high byte 1 Number of words high byte Number of words low byte Error check CRC 16 low byte Error check CRC 16 high byte Error check CRC 16 low byte Error check CRC 16 high byte To use the address 0 see note 1 Broadcast address in the Notes section The data imposed for read only words will be ignored The command will be processed starting from the first word and it will be executed or not executed depending on the actual device status At the first error found the command will be aborted and the slave will answer with an error The 8000h value present in the data field should be considered as a don t care value this is the value present in the device at this address will not be modified 1 1 Word starting address high byte 1 1 1 1 1 HEN EME Word starting address low byte 1 1 E p PEN WES E Example Set words 1505 5E1h 1506 5E2h 1507 5E3h of slave at address 10 Ah with 40 28h don t care 8000h and 300 12Ch values Proportional band Hysteresis and Integral time in
27. LF LF TB2 0 ce ERO ELECTRONIC Page GB 47 51 TITLE RFS User Manual 170 IUO RFS 000 DIGITAL OUTPUTS GROUP 2000 Ww R R es DESCRIPTION E 1D A T E D E C Output 1 status Range OC C 2009 0 Output not energized LF LF 1 Output energized Output 2 status Range 0 Output not energized 2001 1 Output energized OC OC Note LFILF Writing to this parameter is allowed in operative mode only if the output is not driven by an internal function like alarm 2002 Output 3 status OC OC Range and note see Status of output 2 LFILF 2003 Output 4 status OC OC Range and note see Status of output 2 LFILF eS ERO ELECTRONIC TITLE RFS User Manual COMMUNICATION GROUP 2100 Page GB 48 51 170 1U0 RFS 000 Modbus Address DESCRIPTION moz m ma zs U ma omo Default Value Serial link device address Note When you set a new value it will become operative after an instrument resets or removing the CPI If you made a request before the reset the device will reply the new value but it continue to use the old one Keep attention to the data set because at the instrument start up if incompatible data are found the serial line will be set with fixed parameters Address 255 Baud rate 19200 Byte format 8 bits without parity 2100 1 254 OC OC LFILF Baud rate for serial link Range 0 600 Baud 1200 Baud 2400 Baud 9600 Baud
28. N EA Ne ME A VO UNIT LIN LIN ZIN LIN Md 6 6 6 6 24 Maeda l 7 7 T 7 25 l l l l RFS RFS RFS RFS Fig 18 B Common logic input CLOSE NOTE As shown in Fig 18 the logic input of a group of RFS can be driven singularly using terminals 6 and 7 of the specific instrument or collectively using terminals 24 and 25 of the Common I O unit This logic input can be programmed in order to perform the following functions a to switch from main set point to auxiliary set point and viceversa logic input selected set point open main SP close auxiliary SP SP2 b to hold the set point ramp execution logic input Ramp open RUN close HOLD ES ERO ELECTRONIC TITLE RFS User Manual Common alarm output NC 26 27 NO 28 Fig 19 COMMON ALARM OUTPUT WIRING OFF ON MC Oo P Ane va Secom C ps N O ma a 2 CRde daq ux d l I ASIASSA SEAT l zu d T X RES RPS RPS RIS COMMON 10 UNIT Fig 20 A Relay de energized beacon ON lit OFF ON NIA AS O pane v 21 com fa 28 N O 1 E 1 2 l Fg j l l l l gt zd ar d T X RPS RES RES SES COMMON I O UNIT Fig 20 B Relay energized beacon OFF lit The contact rating of this output is 8A 250V AC on resistive load The number of operations is 3 x 105 at specified rating NOTE Don t run inp
29. NPUT GROUP 1100 Modbus Address Default DESCRIPTION Value moz m O ma ma zas omo Measured value without filter in engineering units Notes When an measure error is detected the Data field contains one of these error codes 30004 7534h Under range O PV 30005 7535h Over range or input open 30014 753Eh Error on reference junction temperature lt 25 C or gt 75 C 30050 7562h Error on internal auto zero Filtered measured value in engineering units Note O PV See Measured value without filter 1100 Input type and range value for main input Range 0 TcL 0 400 0 C 1 Te L 0 900 C 2 Tc J 100 0 400 0 C 3 Tc J 100 1000 C 4 Tc K 100 0 400 0 C 5 Tc K 100 1370 C 6 Tc N 100 1400 C 7 Tc R 0 1760 C 8 Tc S 0 1760 C 9 RTD Pt100 200 0 400 0 C 10 RTD Pt100 200 800 C 11 Linear 0 60mV TB1 3 12 Linear 12 60mv 13 Linear 0 20mA e E 14 Linear 4 20mA TB2 20 15 reserved 16 reserved 17 reserved 18 reserved 192 Tc L 0 1650 F 20 Tc J 150 1830 F 1 Tc K 150 2500 F 222 TC N 150 2550 F 23 Tc R 0 3200 F 24 2 Tc S 0 3200 F 25 RTD Pt100 200 0 400 0 F 26 RTD Pt100 330 1470 F 27 Tc T 200 0 400 0 C 28 Tc T 330 750 F 2000 4000 for linear e 1103 Initial scale value Range a
30. as shown in Fig 10 o PES oOo O O p A Fig 10 EXTERNAL SWITCH IN SERIES WITH THE INTERNAL CONTACT In this case it is recommended to install an additional RC network across the external contact as show in Fig 10 The value of capacitor C and resistor R are shown in the following table LOAD C R P OPERATING mA uF Q W VOLTAGE 40 mA 0 047 100 1 2 260 V AC 150 mA 0 1 22 2 260 V AC 05 A 033 47 2 260 V AC The cable involved in relay output wiring must be as far away as possible from input or communication cables VOLTAGE OUTPUTS FOR SSR DRIVE MA As 18 Ly e OUT 1 d tue 19 D Qo SOLD STATE RELAY 15 D c OUT 2 torn 16 0 SOLID STATE RELAY Fig 11 SSR DRIVE OUTPUT WIRING It is a time proportioning output Logic level 0 Vout 0 5 V DC Logic level 1 14 V 20 20 mA 24 V 20 96 1 mA Maximum current 20 mA NOTE This output is not isolated A double or reinforced isolation between instrument output Page GB 7 51 170 1U0 RFS 000 and power supply must be assured by the external solid state relay SERIAL INTERFACE RS 485 interface allows you to connect slave devices with one remote master unit ANA B B C C Common Fig 12 RS 485 WIRING NOTES 1 The RFS is equipped with an RS 485 driver wi
31. ask function This function allows to delete false indication at instrument start up and or after a set point change Process alarm Operative mode High or low programmable Threshold programmable in engineering unit within the input span Hysteresis programmable from 0 1 to 10 0 96 of the input span 1104 1103 Page GB 51 51 170 1U0 RFS 000 Band alarm Operative mode Inside or outside programmable Threshold programmable from 0 to 500 units Hysteresis programmable from 0 1 to 10 0 of the input span Deviation alarm Operative mode High or low programmable Threshold programmable from 500 to 500 units Hysteresis programmable from 0 1 to 10 0 of the input span Communication interface Type RS 485 opto isolated Protocol Modbus RTU device acts as slave Baud rate 600 1200 2400 4800 9600 or 19200 baud Data format 8 bit without parity 8 bit even parity or 8 bit odd parity Slave number up to 120 RFS unit could be connected to the same RS 485 network without using repeaters MAINTENANCE 1 REMOVE POWER FROM THE POWER SUPPLY TERMINALS AND FROM RELAY OUTPUT TERMINALS 2 Using a vacuum cleaner or a compressed air jet max 3 kg cm2 remove all deposit of dust and dirt which may be present on the louvers and on the internal circuits trying to be careful for not damage the electronic components 3 To clean external plastic or rubber parts use only a cloth moistened
32. ating modes description The device foresees three different operating modes named Calibration mode Configuration mode Operative mode The calibration mode This operating mode is detailed in a specific manual named RFS Calibration manual The configuration mode During configuration mode the instrument does not perform the process control and the alarms functions During configuration it is possible to read and write all the parameters of the instrument The instrument configuration can be made by RS 485 or by a specific tool named CPI NOTE the standard RS 485 and the CPI are mutually exclusive and the CPI have the priority with respect of the RS 485 The CPI is shipped with a special software aimed to made the configuration procedure very easy The CPI and the RFS configuration program are described in a specific manual In the chapter RFS Modbus protocol you will find all the information related with the various parameters when it can be write or read limits and so on The operative mode During operative mode the instrument performs the process control and the alarms management and all the other special functions SMART soft start etc During Operative mode it is possible to read and write a subset of parameters SPECIAL FUNCTIONS DURING OPERATIVE MODE Follows a list of the special functions perform by this instrument It aims to help you during configuration and operative mode in
33. ature from 0 to 50 C 32 to 122 F Storage temperature 20 to 70 C 4 to 158 F Humidity from 20 to 85 RH non condensing Operating altitude up to 2000mt INPUTS A THERMOCOUPLE Type L J K N R S T C F selectable External resistance 100 Q max Burn out It is shown as an overrange standard or an underrange condition selectable by cut and short TC sensor current 150 nA Cold junction automatic compensation from O to 50 C Cold junction accuracy 0 1 C C Input impedance 1 MO Page GB 49 51 170 1U0 RFS 000 Tempe Eng rature Type STD unit Range drift PPM eC 100 0 400 0 400 J IEC 584 1 100 1000 200 F 150 1830 eC 100 0 400 0 400 K IEC 584 1 100 1370 200 F 150 2500 DIN oC 0 0 400 0 400 L 43710 0 900 200 TC 1977 F 0 1650 C 100 1400 N IEC 584 1 op 150 2550 200 C 0 1760 R IEC 584 1 oF 0 3200 500 C 0 1760 S IEC 584 1 op 0 3200 500 C 200 0 400 0 T IEC 584 1 op 330 750 400 B RTD Resistance Temperature Detector Type Pt 100 3 wires connection Line resistance automatic compensation up to 20 Q wire with not measurable error Engineering units C or F programmable RTD sensor current 130 yA Burnout up scale NOTE a special test is provided to signal OVERRANGE when input resistance is less than 12 O
34. atus at instrument start up Range O It starts always in auto mode 1 It starts in the same way it was left prior to the power shut down If in manual mode the power output is set to 0 z 2 7 It starts in the same way it was left prior cd us T i gt to the power shut down If in manual mode the power output will be equal to the last value used left prior to the power shut down 3 It starts always in manual mode with power output set to 0 Condition for output safety value Range 0 No safety value Standard setting 1 Safety value applied when over range or 1522 under range condition is detected e Mos Le 2 2 Safety value applied when over range condition is detected 3 Safety value applied when under range condition is detected eS ERO ELECTRONIC TITLE RFS User Manual Page GB 39 51 170 1U0 RFS 000 R Ww A R R pea DESCRIPTION N E 1 D Default Value G A T E E D EC 0 100 1523 Output safety value in 96 for H only OC C OP TB1 0 Note Available only if used 100 100 LF LF TB2 0 for H C Number of decimal figures of parameters with 1524 S DEC attribute set in OP LF NOTE the parameters 1514 and 1515 allow to set the soft start function At power up the instrument limits the power output using 1514 for a programmed time set by 1515 This function allows to gradually warm up the machine during start up in order to delete thermal strengt
35. cnccccnnccconcnnnnnccncnnccnnannnnnnnccnnnncns ERRORES ma o e cal tana Me rnc a o ld DEVICE IDENTIFICATION GROUP 120 dde ud pod to T EU URN OPERATIVE GROUP O00 sosdtcsctustu duc e e ie EIQUE DEVICE MANAGEMENT GROUP 1000 tette tentent ttti PROCESS VARIABLE INPUT GROUP 1100 ettet CURRENT TRANSFORMER INPUT AND ALARM GROUP 1200 DIGITAL INPUT GROUP 1300 cooconcconcconnoconononinocinenincono nono rono tret tette tret tte ttt tton SETPOINI ROVER aaa res EURO ELTE CONTROL OUTPUT 1 GROUP 1500 conc oa a ce a d e SIE TAGROUPTIBUU uere rd nudus e m a a ALARM 4 OUTPUT GROUP COO c Listes tct te imo o deed ALARM 2 OUTPUT SY GROUE 1800 actuar Fue emet t pet eiut mn TA ALARM 3 OUTPUT 4 GROUP 1900 in nitent DIGMALOUTPOTS GROUP 2600 hiec td cien ded d COMMUNICATION GROUP IOO and GENEHADSPECIFICATIONS ico tette naa a a NAA MAINTENANCE ma LC A N Gs ERO ELECTRONIC Page GB 4 51 TITLE RFS User Manual 170 1U0 RFS 000 MOUNTING REQUIREMENTS OUTLINE DIMENSIONS Select a mounting location having the following characteristics 117 1 it should be easy accessible 101 22 5 2 there is no vibrations or impact 3 there are no corrosive gases sulphuric gas ammonia etc 4 there are no water or other fluid i e condense 5 the ambient temperature is in accordance with the operative temperature of the instrument from 0 to 50 C 6 the relative humidity is in accordance with the instrument specif
36. e more or less synchronous This fact produces high current peaks These instruments will use their Modbus address all addresses are different in order to displace the ON and OFF period of the control output s This facility significantly reduces maximum machine start up current requirements and offers potential savings in electrical installation capacity and cable requirements Availability of the not used I O by serial link All RFS I O may be read directly over the Modbus communication interface by the host supervisory system Additionally the communication host may write to RFS outputs that are not assigned as alarm or output functions This facility expands available PLC and host supervisory system I O simplifies machine troubleshooting and provides the possibility to perform remote diagnostics OFD function Output failure detection optional Using the CT input the output failure detection function monitors the current in the load driven by the output 1 Load and actuator protection is provided in the following way During the ON period of the output the instrument measures the current through the load and it generates an alarm condition if this current is lower than a pre programmed threshold 1206 A low current shows a partial or total break down of the load or actuator SSR During the OFF period of the output the instrument measures the leakage current through the load and it generates an alarm cond
37. e loops will be hold The ramp execution will restart when all measures come back in the tracking band In order to obtain this function set the instruments as follows 1 The alarm 3 is a band alarm 1903 2 1904 0 1905 0 1906 O and 1907 0 2 The operative set point at start up must be set equal to aligned to the measured value 1410 1 3 The logic input is used for ramp hold 1301 2 4 The rate of change for positive set point variation 1408 and the rate of change for negative set point variation 1409 must be set between 1 and 100 digit per minute according with the desired rate of change 5 The common alarm output is connected with the common logic input Sequential address Modbus for frequently accessed parameter To maximize the data transfer rates between the RFS and the host supervisory system important operating parameters are grouped with sequential address see operative group 900 To further increase data transfer efficiency all digital status information are transferred as one data word The system enables the RFS to communicate relevant parameter information with a single data request not a series of separate address operations Page GB 12 51 170 1U0 RFS 000 Energy management at start up When you turn ON a multi loops machine where all loops have the soft start function at power up the ON and OFF period of the control output of all loops will b
38. e variable of the slave unit The master can require a maximum of 20 words at a time Request from master to slave Reply from slave to master Range Range U lt gt 0 Slave address 1 255 Function code 03 04 Function code 03 04 Word starting address high byte Byte counter n Word starting address low byte Data Slave address 1 255 Number of word high byte Error check CRC 16 low byte Number of word low byte Error check CRC 16 high byte Error check CRC 16 low byte Error check CRC 16 high byte The Data field contains the requested words in the following format high byte of the first word low byte of the first word high byte of the second word and so on The Data field contains 8000h for not implemented addresses or for information not relevant in the actual device configuration Example Ask to slave at address 1 1h the value of 3 3h words starting from word 1100 44Ch Process variable input group Reply from slave to master Request from master to slave Range Slave address Function code Word starting address high byte low byte Word starting address Number of words high byte Number of words low byte Error check CRC 16 low byte Error check CRC 16 high byte Error check CRC 16 low byte Error check CRC 16 high byte The 6 bytes in Data field 00h 1Dh 00h 1Dh 00h 03h are 3 words whose meaning is Word 1100 value 29
39. eS ERO ELECTRONIC TITLE RFS User Manual 170 1U0 RFS 000 1 d i JE Bl USER MANUAL RFS DIN Rail Mounting Temperature Controller ERO Electronic division of Eurotherm s r l Via Enrico Mattei 21 1 28100 Novara ITALY Tel 39 0321 481111 Fax 39 0321 481112 Ge ERO ELECTRONIC Page GB 2 51 TITLE RFS User Manual 170 IUO RFS 000 Ge ERO ELECTRONIC Page GB 3 51 TITLE RFS User Manual 170 1U0 RFS 000 Index Mounting requirements A A A e eens a OU TPEINE DIMENSIONS 0 ii A nod P EU ice nies CONNECTION DIAGRAMS s riencia apt e one ad tae aed qum edi m qe T MS ACOBSSO RIE Sicario Decus dee dtp Roco docet ne cose qe PU t tds qu eu e na ay qp cu iia FUNCTIONALITY aeneis ede teo e eto Oa ta MO NE camel ener ERI LIE SPECIAL FUNCTIONS DURING OPERATIVE MODE sss eene GENERAL NOTES ON THE MODBUS RTU PROTOCOL sseseeeeene nee TRANSMISSION FORMAT deerat Gast fae tto qm eate Deb ao pe ecd eel cra COMMUNICATION PROCEDURE 5 p rete fi Ned n at pecu cian FUNCTION CODE 1 AND 2 BITS READING iniit ieiuno sack pe tette foe te Geeta i eres FUNCTION CODE 3 AND 4 WORDS READING sss eene nennen FUNCTION CODE 5 SINGLE BIT WRITING sssseeeeneneenennn menn nennen FUNCTION CODE 6 SINGLE WORD WhARITING sssssseeeeeeeennmm eene nere FUNCTION CODE 15 MULTIPLE BITS WRITING sssssseeeeeennn enne FUNCTION CODE 16 MULTIPLE WORDS WRITING oooccccccccon
40. en one set point to another or between two different set point values may be realized by a step transfer or by a ramp with two different programmable rate of change ramp up and ramp down Slope value 1 100 eng unit min or step Set points limiter programmable Page GB 50 51 170 1U0 RFS 000 CONTROL ACTIONS Control action PID SMART Type One heating or cooling or two heating and cooling control outputs Proportional Band Pb Range from 1 0 to 100 0 of the input span for process with one control output from 1 5 to 100 0 of the input span for process with two control outputs When Pb 0 the control action becomes ON OFF Hysteresis for ON OFF control action from 0 1 to 10 0 of the input span Integral time Ti from 1s to 20 min or excluded Derivative time Td from O s to 10 min If zero value is selected the derivative action is excluded Integral pre load from O to 100 for one control output from 100 cooling to 100 96 heating for two control outputs SMART enabling disabling Auto Manual mode selectable Manual Auto transfer bumpless method type OUTPUTS Control output updating time 250 ms when a linear input is selected 500 ms when a TC or RTD input is selected Action direct reverse programmable Output status indication four indicators OUT 1 2 3 and 4 are lit when the respective outputs are in ON condition Output level limiter For one control med
41. g By using this command the master unit can change the value of one word 16 bit of the slave unit Command from master to slave 1 Range Slave address 0 255 Function code 06 Word address high byte Word address low byte Data Error check CRC 16 low byte Error check CRC 16 high byte 1 Page GB 19 51 170 IU0 RFS 000 Reply from slave to master 1 Range Slave address 1 255 Function code 06 Word address high byte Word address low byte Data Error check CRC 16 low byte Error check CRC 16 high byte Eq gt To use the address 0 see note 1 Broadcast address in the Notes section The 8000h value present in the Data field should be considered as a don t care value that is the value present in the device at this address will not be modified Example Set word 1403 57Bh of slave at address 1 1h with value 240 FOh Main set point in Setpoint group Command from master to slave Range Slave address Function code Word address high byte Word address low byte Data Data Error check CRC 16 Error check CRC 16 high byte low byte Reply from slave to master Range Slave address Function code Word address high byte Word address low byte Data Data Error check CRC 16 Error check CRC 16 high byte low byte ce ERO ELECTRONIC Page GB 20 51 TITLE RFS User Manual 170 IUO RFS 000 Functi
42. h and to protect the raw material GE ERO ELECTRONIC TITLE RFS User Manual Page GB 40 51 170 1U0 RFS 000 SMART GROUP 1600 R Ww A RIR M DESCRIPTION N E p Peut Address G A TE Value E D E C Tune status Range 1909 O No tune 2 1 Tune Adaptive status Range 1591 0 No adaptive 9 1 Adaptive Smart enable disable Range 1602 0 Disable OC OC TB1 0 1 Enable LF LF TB2 0 Note Reading this bit is logical or between Tune and Adaptive status Relative cooling gain calculated by the smart algorithm 1603 Range OC C TB1 0 0 Smart does not calculate R C G LFILF TB2 0 1 Smart calculates R C G Note Available only for HC control Type of cooling media Range 0 Air is used as cooling media 1 7 Oil is used as cooling media 2 Direct water is used as cooling media 1604 Changing 1604 the instrument forces the cycle Re E e E time and relative cooling gain parameter to the default value related with the chosen cooling media When 1604 Alr Cy2 10s and rC 1 00 1604 2 OIL Cy2 4sandrC 0 80 1604 2 H2O Cy2 2andrC 0 40 Note Available only for HC control 1605 Max value of proportional band calculated by Min Value OC C 4 TB1 300 the smart algorithm 1000 LFILF TB2 300 Min value of proportional band calculated by 40 OC C TB1 15 1606 the smart algorithm 1 Note Not available for HC control Max value EE EE JE Min value of proportional band
43. ications 2096 to 85 non condensing The instrument can be mounted on OMEGA DIN rail in accordance with EN 50 022 35 x 7 5 mm or 35 x 15 mm regulations For outline dimensions refer to Fig 2 A3 131 120 MOUNTING Fig 2 OUTLINE DIMENSIONS CONNECTION DIAGRAMS Fig 1 A REMOVING Fig 3 TERMINAL BLOCK ES ERO ELECTRONIC TITLE RFS User Manual MEASURING INPUTS NOTE Any external component like zener barriers etc connected between sensor and input terminals may cause errors in measurement due to excessive and or not balanced line resistance or possible leakage currents TC INPUT G TP EE os Fig 4 THERMOCOUPLE INPUT WIRING NOTE 1 Don t run input wires together with power cables 2 For TC wiring use proper compensating cable preferable shielded 3 When a shielded cable is used it should be connected at one point only RTD INPUT RTD RTD qme d f k 23 22 21 23 22 21 Fig 5 RTD INPUT WIRING NOTE 1 Don t run input wires together with power cables 2 Pay attention to the line resistance a high line resistance higher than 20 O wire may cause measurement errors 3 If shielded cable is used it should be grounded at one point only 4 The resistance of
44. ie PV TE limits for Tc Rtd ce ERO ELECTRONIC Page GB 30 51 TITLE RFS User Manual 170 1U0 RFS 000 R Ww A R R era DESCRIPTION N E 11D ae G AT E E D E C 2000 4000 a e g TB1 400 1104 Full scale value Range LE LE PV TB2 1000 limits for Tc Rtd Decimal point position PV Process variable Range 0 No decimal figure 1 One decimal figure 1105 2 Two decimal figures pO e Us B A LF LF TB2 0 3 Three decimal figures Note The write command is enabled only for linear input Offset adjustment in engineering units 7 1106 Note ETE sca MEME Tele LFILF TB2 0 Not available for linear ranges Note The minimum input span Full scale value Initial scale value in absolute value must be greater than 100 digits for linear input ranges 300 C 550 F for Tc input ranges 100 C 200 F for Rtd input ranges eS ERO ELECTRONIC TITLE RFS User Manual Page GB 31 51 170 1U0 RFS 000 CURRENT TRANSFORMER INPUT AND ALARM GROUP 1200 Modbus Address 1200 1201 1202 1203 1204 1205 1206 1207 DESCRIPTION CT alarm status Load and Leakage alarms Range 0 No alarm 1 Alarm Note Available only when the option is programmed OUT 1 Leakage current measured value in Ampere Note Available only when the option is programmed OUT 1 Leakage current measure updating flag
45. ional band 1512 Notes am poene hee 1 Available only for HC control LF LF TB2 0 2 A negative value produces an dead band while a positive value produces an overlap Out 2 Cycle time in seconds OC OC TB1 10 1513 Note Available only for HC control 14290 LF LF TB2 10 ce ERO ELECTRONIC Page GB 38 51 TITLE RFS User Manual 170 1UO RFS 000 R WwW A R R Md DESCRIPTION N E 1 D Default Value G A TE E D E C n OC OC TB1 100 f T Pg kx for H only 1514 Output high limiter in 100 100 LF LF OP TB2 100 for H C Time duration of the output power limiter soft start in minutes 2 1515 Noto i PM rus ru eg Rcs c The value 32767 7FFFh means that the limiting action is always on Control output max rate of rise in percent of the output per second TB1 7FFFh 1516 Note ree l 1 25 us E OP TB2 7FFFh The value 32767 7FFFh means that no ramp limitation is imposed Out 1 action 1517 Range OC C TB1 1 0 Direct LF LF TB2 1 1 Reverse Control action type 1518 Range OC C TB1 0 0 The process is controlled by PID actions LF LF TB2 0 1 The process is controlled by Pl actions 1519 Threshold to enable the soft start output power L Scale OC C PV TB1 0 limiting in engineering units H Scale LF LF TB2 0 Inhibit reset band extension OC C TB1 10 mee in of the proportional band PUE LF LF 7 TB2 10 Device st
46. is done by the device receiving parameters it s under the responsibility of the master to send a valid set of parameters If the master fails to follow the above rule it will be impossible to switch the controller in operative mode until the whole set of parameters will be valid 8 Read write access permissions The access permissions are stated for each parameter in the description tables by means of two columns named read and write according the following meaning O access allowed in operative mode C access allowed in configuration mode L access allowed in calibration mode F access allowed in factory test mode eS ERO ELECTRONIC TITLE RFS User Manual 9 Software key for lock unlock control parameters Due to the lack of frontal panel no one protection scheme is available for this device 10 Address space The whole variables are addressable as word as well as bit the user may choose the better way according to the condition Although we suggest to manage analog variables as words and boolean variables as bits below is described the behavior to access analog variables example alarm threshold as bits and boolean variables example alarm status as words Reading analog variables as bits if the variable is not relevant in the actual device configuration word value 8000h or if the value is zero the bit is reset otherwise the bit is set Writing analog variables as bits the reset bit means 0000h
47. ition when this current is higher than a pre programmed threshold value 1205 A high leakage current shows a short circuit of the actuator Soft start function This function allows to gradually warm up the machine during start up in order to delete thermal strength and to protect the raw material The energy applied is restricted by 1514 for a programmable time 1515 ce ERO ELECTRONIC Page GB 13 51 TITLE RFS User Manual 170 IUO RFS 000 GENERAL NOTES ON THE MODBUS RTU PROTOCOL This half duplex protocol accepts one master and one or more slaves The physical interface should be of the RS 485 type A single multidrop link can take up to 120 devices having the same High input impedance as the transceiver used The computer must be programmed to serve as a master controlling which slave has access to the link All other slaves are in waiting state Each slave has a unique address ranging from 1 to 254 Address 0 is a broadcast one When the master sends a message with address O all slaves receive it and no one replies NOTE The numerical value present in this text are expressed as binary value if they are followed by b decimal value if they are not followed by any letter hexadecimal value if they are followed by h TRANSMISSION FORMAT The protocol uses the RTU Remote terminal unit mode of transmission RTU is a binary method with byte format composed as follows 1 start bit 8 data bit 1 pari
48. ium from 0 to 100 For two control mediums from 100 to 100 Cycle times For out 1 it is programmable from 1 to 200 s For out 2 it is programmable from 1 to 200 s Relative cooling gain programmable from 0 20 to 1 00 Overlap dead band programmable from 20 96 to 50 of the proportional band eS ERO ELECTRONIC TITLE RFS User Manual OUTPUT 1 Function programmable as heating or cooling output Type a Relay output with SPST contact contact rating 3A 250 V AC on resistive load b Logic voltage for SSR drive Logic status 1 24 V 20 O 1 mA 14 V 20 20 mA Logic status 0 0 5 V OUTPUT 2 Function programmable as control output cooling Alarm 1 output Type a Relay output with SPST contact contact rating 3A 250 V AC on resistive load b Logic voltage for SSR drive Logic status 1 24 V 20 O 1 mA 14 V 20 O 20 mA Logic status 0 0 5 V OUTPUT 3 Function Alarm 2 output Type relay with SPDT contact Contact rated 3 A at 250 V AC on resistive load OUTPUT 4 Output type open collector optically isolated with respect to the other circuits Rating max 10 mA at 48 V ALARMS Actions Direct or reverse acting Alarm functions each alarm can be configured as process alarm band alarm or deviation alarm Alarm reset automatic or manual reset programmable on each alarm Stand by mask alarm each alarm can be configured with or without stand by m
49. nly the fuse must be rated as follows When fuse is damaged it is advisable to verify the power supply circuit so that it is necessary to send back the instrument to your supplier 5 The maximum power consumption is equal to 6 VA 4 W maximum Page GB 8 51 170 1U0 RFS 000 ACCESSORIES BUS cable It is possible to use a screw connector instead of the flat cable allowing the normal wiring of a single controller This flat cable allows the simultaneous connection of the power supply the serial interface the common alarm output out 4 and the common logic input of up to 12 instruments plus one Common I O unit or up to 13 instruments NOTE 1 the logic inputs of each instrument can be driven byits own connector terminals 6 and 7 without affecting the working of the other elements by the common logic input terminals 24 and 25 present on the common I O unit In this case all instruments connected with the BUS cable will detect the same logic input condition 2 The local logic input terminals 6 and 7 and the common logic input terminals 24 and 25 are in OR condition Fig 14 BUS CABLE The connector used is a MOLEX Europe with 16 circuits Part number 39512163 EE A 127 6 06 i 239 ha BECOME IL 1 90 2032 075 Fig 15 CONNECTOR 8 x 2 FOR BUS CABLE ES ERO ELECTRONIC TITLE RFS User Manual COMMON I O UN
50. on at consecutive address This solution allows to maximize the data transfer rates between the RFS and the host supervisory system R Ww Modbus A RIR Default Address DESCRIPTION N E D Value G AITE E D IE C OUT 1 Leakage current measure value in Ampere O CT Same as address 1201 OUT 1 Load current measure value in Ampere O CT Same as address 1203 OUT 2 value in Same as address 1501 ile Ms ES TRE OUT 1 value in Same as address 1500 d Ms Ad iri STATUS D15 OUT 1 Leakage current measure updating See address 1202 0 Measure updated 1 Measure not updated D14 0 Reserved D13 Status alarm 3 0 No alarm 1 Alarm D12 Status alarm 2 0 No alarm 1 Alarm D11 Status alarm 1 0 2 No alarm 1 Alarm D10 Status CT alarm 0 No alarm 1 Alarm D 9 OUT 1 Load current measure updating See address 1204 0 Measure updated 1 Measure not updated D 8 20 Reserved O D 7 Status of Out4 0 Out not energized 1 Out energized D 6 Status of Out3 0 Out not energized 1 Out energized D 5 Status of Out2 0 7 Out not energized 1 Out energized D 4 Status of Out 1 0 Out not energized 1 Out energized D 3 Digital input status 0 Contact open 1 Contact closed D 2 Auto Manual O Auto 1 Manual D 1 control output Enabled or disabled 0 Enabled 1 Disabled D 0 SMART Enable or Disable 0 Disabled 1 Enabled eS ERO
51. on code 15 Multiple bits writing This function code is used by master unit to set reset a consecutive group of bits Max 24 Command from master to slave Reply from slave to master Slave address 1 255 ELM 3 Function code 15 LA Bit starting address high byte 1 it starti E NI pu Pa qu 1 1 1 1 1 1 1 Slave address 0 255 its Error check CRC 16 low byte 1 n Error check CRC 16 high byte Error check CRC 16 high byte To use the address 0 see note 1 Broadcast address in the Notes section The desired status of each bit is packed in the Data field 1 2 ON 0 OFF The status imposed for read only bits will be ignored The command will be processed starting from the first bit and it will be executed or not executed depending on the actual device status At the first error found the command will be aborted and the slave will answer with an error Example Send to slave at address 2 2h the following set of 2 bits Bit 2002 7D2h status O bit 0 Status of output 3 output not energized Bit 2003 7D3h status 1 bit 1 Status of output 4 output energized Filler 0 bit 2 Filler 0 bit 3 Filler 0 bit 4 Filler 0 bit 5 Filler 0 bit 6 Filler 0 bit 7 Error check CRC 16 low byte Error check CRC 16 high byte Error check CRC 16 low byte Error check CRC 16 high byte ce ERO ELECTRONIC Page GB 21 51 TIT
52. order to obtain the best performance from this instrument NOTE in the following descriptions two square brackets are used to define the Modbus address of a parameter Page GB 11 51 170 1U0 RFS 000 Indicators 1 Lit when OUT 1 is ON 2 Lit when OUT 2 is ON 3 Lit when OUT 3 is ON 4 Lit when OUT 4 is ON PV FAIL Lit when a failure is detected on the measuring input COM Lit during transmission SYS Flashing during operative mode Lit during configuration and calibration mode D IN lit when the logic input is closed Enable disable the control output When the instrument is in operative mode it is possible to disable the control outputs 1504 In this open loop mode the device will function as an indicator the instrument performs the measure but all control outputs will be forced to 0 When the control outputs are disabled the alarms are also in no alarm condition If a power down occurs when the control output is disabled at instrument power up the control output will be automatically disabled When the control is restored the instrument operates as in presence of a power up and the alarm mask function if configured will be activated MANUAL function The MANUAL mode function 1503 allows to set directly the power output of the instrument The transfer from AUTO to MANUAL and viceversa is bumpless this function is not provided if integral action is excluded If transfer from AUTO to MANUAL is performed
53. r is the CRC 16 value When the CRC 16 16 bytes is transmitted in the message the low byte will be transmitted first followed by the high byte ce ERO ELECTRONIC Page GB 15 51 TITLE RFS User Manual 170 1U0 RFS 000 An example of a C language function performing CRC generation is shown below ere 16 calculate the crc 16 error check field Input parameters buffer string to calculate CRC length bytes number of the string This function returns the CRC value Ej unsigned int crc 16 unsigned char buffer unsigned int length unsigned int i j temp bit temp int crc crc OxFFFF for i 0 i lt length i temp int unsigned char buffer crc temp int for j 0 j lt 8 j temp bit cre amp 0x0001 crc gt gt 1 if temp_bit 0 crc 0xA001 return crc ce ERO ELECTRONIC Page GB 16 51 TITLE RFS User Manual 170 IUO RFS 000 Function code 1 and 2 Bits reading These function codes are used by the master unit to request the value of a consecutive group of bits max 24 which are representing the status of the slave unit Request from master to slave Reply from slave to master Range Range Slave address 1 255 1 Slave address 1 255 prse 1 Function code 01 02 Function code 01 02 Bit starting address high byte Bit starting address low byte Data n Number of bits high byte Error check CRC 16 low byte
54. s alarm 3 output Band alarm 3 Output used as alarm 3 output Deviation alarm OC C LF LF TB1 0 TB2 0 Alarm 3 operating mode Range 0 High alarm outside for band 1904 alarm Oc C 1 Low alarm inside for band LE EE alarm Note Available only if AL3 is configured TB1 0 TB2 0 Alarm 3 reset type Range 1905 0 Automatic reset OC C 1 Manual reset LFILF Note Available only if AL3 is configured TB1 0 TB2 0 eS ERO ELECTRONIC TITLE RFS User Manual Modbus Address 1906 1907 Page GB 46 51 170 1U0 RFS 000 DESCRIPTION Alarm 3 action Range 0 Direct action relay energized in alarm condition 1 Reverse action relay de energized in alarm condition Note Available only if AL3 is configured Alarm 3 stand by mask function Range 0 No standby function 1 Standby function Notes 1 Available only if AL3 is configured 2 Ifthe alarm is programmed as band or deviation alarm this function masks the alarm condition after a set point change or at the instrument start up until the process variable reaches the alarm threshold plus or minus hysteresis If the alarm is programmed as a process alarm this function masks the alarm condition at instrument start up until process variable reaches the alarm threshold plus or minus hysteresis R Ww A RIR n eaa G A T E E D E C OC C TB1 1 LF LF TB2 1 OC C TB1 0
55. th an input impedance fore time higher than a standard one For this reason it is possible to connect 120 RFS units to the same master instead of 30 1 The cable length must not exceed 1 5 km at 19200 BAUD 2 This serial interface is isolated 3 The following report describes the signal sense of the voltage appearing across the interconnection cable as defined by EIA for RS 485 a The A terminal of the generator shall be negative with respect to the B terminal for a binary 1 MARK or OFF state b The A terminal of the generator shall be positive with respect to the B terminal for a binary O SPACE or ON 4 The EIA standard establishes that by RS 485 interface it is possible to connect up to 30 devices with one remote master unit The serial interface of these instruments is based on High input impedance transceivers this solution allows you to connect up to 120 devices based on the same transceiver type with one remote master unit eS ERO ELECTRONIC TITLE RFS User Manual POWER LINE WIRING POWER LINE 24 V A C DC Fig 13 POWER LINE WIRING NOTES 1 Before connecting the instrument to the power line make sure that line voltage corresponds to the description on the identification label 2 Use copper conductors only 3 Don t run input wires together with power cables 4 The power supply input is NOT fuse protected Please provide it externally For one unit o
56. the slave does not send any reply to the master If other errors are detected in the request or command frame or the slave cannot reply with the requested values or it cannot accept the requested sets because it is in error condition the slave replies by forcing at 1 the bit 7 of the received Function code byte followed by an error code Error reply from slave to master RANGE BYTE Slave address Function code 80h Error code Error check CRC 16 low byte Error check CRC 16 high byte List of error codes ERROR CODE DESCRIPTION 2 Illegal data address 3 Illegal data value 9 Illegal number of data required 10 The parameter indicated cannot be modified or command cannot be executed Error 2 is issued only when the whole addresses involved in a read or write operation are not implemented on the device ce ERO ELECTRONIC Page GB 25 51 TITLE RFS User Manual 170 IUO RFS 000 DEVICE IDENTIFICATION GROUP 120 Ww RR riga DESCRIPTION E I D ress A T E DIEJC Manufactured trade mark OC 50 32h St Device identification code Note OC Number of software revision x 100 identification L F code 54 36h En 3 DUE OC Serial firmware identification code LE ce ERO ELECTRONIC Page GB 26 51 TITLE RFS User Manual 170 IUO RFS 000 OPERATIVE GROUP 900 Note On this group are repeated some information present in other groups The purpose of this is to have these informati
57. ty bit optional 1 stop bit The communication speed is selectable among 600 1200 2400 4800 9600 and 19200 baud NOTE If CPI Configuration Port Interface is used the transmission format is fixed 19200 8 bits No parity and the address is fixed at 255 The broadcast address 0 is not admitted COMMUNICATION PROCEDURE The communication can be initiated only by the master unit the slave units can transmit only after a query has been received from the master The general format for the transmission from master to slave is the following Slave address E IU a MET TRI The slave detects the start of a query frame when the delay time between two characters is greater than 3 5 T U Time Unit Time necessary to transmit one character ce ERO ELECTRONIC Page GB 14 51 TITLE RFS User Manual 170 IUO RFS 000 ERROR CHECK CRC 16 Cyclical Redundancy Check The CRC 16 value is calculated by the transmitting device This value is appended to the message The receiving device recalculates a CRC 16 and compares the calculated value to the received value The two values must be equal The CRC 16 is started by first pre loading a 16 bit register to all 1 s Then a process begins of applying successive the bytes of the message to the current contents of the register Only the eight bits of data in each character are used for generating the CRC 16 Start and stop bits and the parity bit if one is used do not apply to the CRC 16
58. ut wires together with power cables The relay contacts are protected by varistor against inductive load with inductive component up to 0 5 A CONNECTOR KIT The unit can be supplyed with or without the connector kit The quantity of each connector is related with the specific options selected 10 16 gt 18 2 gt guess tl es Fig 21 2 wires connector Phoenix model MSTB 2 5 2 ST 5 08 Page GB 10 51 170 1U0 RFS 000 i i 2 54 ALL 5 08 83 Fig 22 3 wires connector Phoenix model MSTB 2 5 3 ST 5 08 e 2 18 2 2 54 EB 5 08 lt 8 3 Fig 23 4 wires connector NOTE this connector is a gold plated connector and it is shipped with the instrument and it is not included in the connector kit Phoenix model MSTB 2 5 4 ST 5 08 18 2 _ gt b dos r il Bd nd if 20 32 Fig 24 5 wires connector Phoenix model MSTB 2 5 5 ST 5 08 40 64 18 2 uu NN i i i i i i f 2 54 ALL 5 08 L 83 35 56 Fig 25 8 wires connector Phoenix model MSTB 2 5 8 ST 5 08 eS ERO ELECTRONIC TITLE RFS User Manual FUNCTIONALITY Oper
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