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11. Troubleshooting

If any malfunctions occur, check if the power is supplied to the PLC, CIT-200 and C series. If the power is
supplied to them, a green power indicator (POWER) lights up.

Check the following and C series “12. Troubleshooting” when they do not work even if the indicator lights up.

Warning

Turn the power supplied to the instrument OFF before wiring or checking.

Working with the power switched ON may result in severe injury or death due to
Electric Shock.

Problem: Communication is impossible.

Presumed cause

Solution

• The disconnection of communication cable or

imperfect contact between the cable and terminal

Change the cable, or fasten the screw of
the terminal securely.

• Setup of the CIT-200 is mistaken.

Refer to pages 9 and 10.

• Setup of the CPT-20A is mistaken.

Refer to pages 9 and 10.

• The wiring of communication cable is not correct.

Wire it properly. (pp.13 to 17)

• Setup of the PLC is not correct.

Setup of Mitsubishi PLC: pp. 17 to 19
Setup of Omron PLC : pp. 34
Setup of Fuji PLC

: pp. 41

• Initial setting of the PLC is not correct.

Initial setting of Mitsubishi PLC : pp. 20
Initial setting of Omron PLC

: pp. 34 to 40

Initial setting of Fuji PLC

: pp. 42 to 47

• When using the communication line RS-422A,

terminators are not connected at the end of the
PLC unit.

Connect terminators, referring to the instruction
manual for each PLC.

If any unexplained malfunctions occur other than the above mentioned, make inquiries at our agency or
the shop where you purchased the unit.

Summary of Contents for CIT-200

Page 1: ...PLC INTERFACE UNIT CIT 200 INSTRUCTION MANUAL ...

Page 2: ...contents of this instruction manual are subject to change without notice Care has been taken to assure that the contents of this instruction manual are correct but if there are any doubts mistakes or questions please inform us or the shop you purchased the unit Any unauthorized transfer or copying of this document in part or in whole is prohibited Shinko Technos Co Ltd is not liable for any damage...

Page 3: ...rrosive gases 2 No flammable explosive gases 3 No mechanical vibrations or shocks 4 No exposure to direct sunlight an ambient temperature of 0 to 50 32 to122 that does not change rapidly 5 An ambient non condensing humidity of 35 to 85 RH 6 No large capacity electromagnetic switches or cables through which large current is flowing 7 No water oil or chemicals or where the vapors of these substances...

Page 4: ...inal block of the CIT 200 is designed to be wired from the left side The lead wire must be inserted from the left side of the terminal and fastened with the terminal screw Tighten the terminal screw with the specified torque If excessive force is applied to the screw when tightening the screw or case may be damaged 3 Running and maintenance precautions Warning Do not touch live terminals It may ca...

Page 5: ...Interface module 16 7 Communication between the CIT 200 and Mitsubishi PLC 7 1 Setup 7 1 1 Setup of Calculator link unit AJ71UC24 17 7 1 2 Setup of Calculator link unit A1SJ71UC24 R4 18 7 1 3 Setup of Micro PLC FX2N XXMR 18 7 1 4 Setup of Serial communication unit QJ71C24 19 7 2 Initial setting 7 2 1 Initial setting of Calculator link unit AJ71UC24 A1SJ71UC24 R4 20 7 2 2 Initial setting of Micro P...

Page 6: ...h temperature control unit CCT 235 2 2 Ch temperature control unit Two channels should have the same input and same output 3 Heating Cooling temperature control unit CCT 235 D Temperature control unit Heating Cooling control is possible with 1 Ch input 4 Power source host link unit CPT 20A Link unit to supply the power to the CCT 235 and to communicate with the host unit 5 Base unit CBT 210 Base u...

Page 7: ...om the CPT 20A and sends it to the data memory in the PLC The CPT 20A receives the sending data from the CIT 200 and CPT 20A sends the data to the CCT 235 The CPT 20A receives the response data from the CCT 235 and sends it to the CIT 200 The CCT 235 receives the sending data from the CPT 20A and CCT 235 performs the control The CCT 235 sends the control data to the CPT 20A RS 422A Link unit CPT 2...

Page 8: ...d functions of the sections Fig 3 1 1 TX RX Communication indicator When communicating between the CIT 200 and PLC a yellow LED blinks 2 POWER Instrument power indicator When the power supply to the instrument is turned ON a green LED lights 3 Modular jack Connects the CIT 200 to CPT 20A 4 Rotary switch for selecting a PLC type Selects a PLC type to communicate with the CIT 200 5 DIP switch for co...

Page 9: ...ecimal figures Do not set the Rotary switch number 6 to F even if its setting range is from 0 to F Rotary SW No PLC and its manufacturer Communication command Communication protocol Using memory 0 Mitsubishi MELSEC ACPU common command WR WW compatible Host link unit protocol Protocol 4 R register 1 Mitsubishi MELSEC ACPU common command WR WW compatible Host link unit protocol Protocol 4 D register...

Page 10: ...2C The above switch setup items 1 2 and 3 will be effective when the power supply is turned on If any items are changed after the power is turned on they will not be effective Setup of the CPT 20A Set the DIP switch to as shown below except for No 2 DIP SW No Contents ON OFF 1 Communication speed 19 200bps 9 600bps 2 Terminator Terminator Connected Terminator Not connected 3 to 6 Communication pro...

Page 11: ... direct sunlight an ambient temperature of 0 to 50 32 to122 that does not change rapidly 5 An ambient non condensing humidity of 35 to 85 RH 6 No large capacity electromagnetic switches or cables through which large current is flowing 7 No water oil or chemicals or where the vapors of these substances can come into direct contact with the unit 5 2 External dimensions Fig 5 2 1 5 3 DIN rail mountin...

Page 12: ... signal or common return cable COM 7 Cable length Maximum 10m 2 RS 422A Signal name Code Signal direction Terminal No Terminator TXA 8 Sending data TXB Output 9 RXA 10 Receiving data RXB Input 11 Built in Ground for the signal or common return cable COM 12 Cable length Maximum 1km 50 60Hz TX RX POWER 10 9 8 7 6 5 1 4 3 2 11 12 13 14 RXA TXB TXA COM RX TX RS 232C COM RXB RS 422A TX RX POWER 10 9 8 ...

Page 13: ...u Terminal Industries CO LTD 1 25 Y3 Y type Japan Solderless Terminal MFG CO LTD VD1 25 B3A Nichifu Terminal Industries CO LTD 1 25 3 Round type Japan Solderless Terminal MFG CO LTD V1 25 3 0 6N m Max 1 0N m Recommended cable Name Manufacturer Communication line OTSC 2PVB 7 0 32TA ONAMBA CO LTD RS 232C OTSC 3PVB 7 0 32TA ONAMBA CO LTD RS 422A Recommended D sub connector Model Manufacturer Name DE ...

Page 14: ...32C FX2N XXMR Cable length Maximum 10m Fig 6 3 2 1 FX2N XXMR CIT 200 TX RX COM 2 3 5 RD SD SG D sub 9 pin 凸 GND Twisted shield wire Micro PLC 5 6 7 4 Calculator link unit RDA RDB SG SDA SDB CIT 200 TXA TXB RXA RXB COM GND 8 9 10 11 12 4 Twisted shield wire D sub 25 pin 凸 Calculator link unit AJ71UC24 CIT 200 TX RX COM 2 3 7 SD RD SG GND A1SJ71UC24 R2 CIT 200 TX RX COM 2 3 5 RD SD SG D sub 9 pin 凸 ...

Page 15: ... V1 Cable length Maximum 1km Fig 6 3 3 2 Twisted shield wire SDA SDB SG RDA RDB CIT 200 TXA TXB RXA RXB COM GND FX2N XXMR Micro PLC 8 9 11 4 10 12 Twisted shield wire C200H LK202 V1 1 3 9 D sub 9 pin 凸 5 6 SDA SDB SG RDA RDB CIT 200 TXA TXB RXA RXB COM GND 8 9 11 4 10 12 Host link unit D sub 25 pin 凸 C200H LK201 V1 CIT 200 TX RX COM 2 3 7 SD RD SG GND 5 6 7 4 Host link unit Twisted shield wire ...

Page 16: ...aximum 10m Fig 6 3 4 1 RS 422A NC1L RS4 Cable length Maximum 1km Fig 6 3 4 2 5 6 7 4 Twisted shield wire CIT 200 TX RX COM 2 3 7 SD RD SG GND NC1L RS2 D sub 25 pin 凸 Interface module NC1L RS4 SDA SDB SG RDA RDB CIT 200 TXA TXB RXA RXB COM GND 8 Interface module 10 11 12 4 Twisted shield wire 9 ...

Page 17: ... for the baud rate to Fig 7 1 1 1 Table 7 1 1 1 Setting switch Setting item Setting switch ON Setting switch OFF SW11 Main channel setting RS 422A RS 232C SW12 Data bit setting 8 bits 7 bits Baud rate 9600bps 19200bps SW13 ON OFF SW14 OFF ON SW15 Transmission speed setting ON ON SW16 Parity setting Yes No SW17 Even Odd parity setting Even Odd SW18 Stop bit setting 2 bits 1 bit SW21 Checksum settin...

Page 18: ... bits SW09 Parity setting Yes No SW10 Even Odd parity setting Even Odd SW11 Stop bit setting 2 bits 1 bit SW12 Checksum setting Yes No 7 1 3 Setup of Micro PLC FX2N XXMR In the program set up communication of no procedure communication of calculator link communication format D8120 which uses designated protocol and the station number 0 Specification of communication format D8120 Set the items to e...

Page 19: ...m to the special data memory D8121 of the PLC as follows Fig 7 1 3 3 7 1 4 Setup of Serial communication unit QJ71C24 Install the GX Developer to a host computer perform settings such as communication speed transmission specification and communication protocol then set up the unit with PC writing function Setting from the GX Developer 1 I O allocation setting Set the following items Type Intellige...

Page 20: ... 1 To the R0000 address set the top address R1000 in the memory which is used for the communication with the CIT 200 2 To the address R1000 set the number of CPT 20A 10 units connected to the CIT 200 3 To the address R1001 to R1004 set the number of CCT 235 10 units connected to the CPT 20A 4 To the address R1005 set the communication item Used Not used selection flag See page 24 for the communica...

Page 21: ...e address D1000 set the number of CPT 20A 10 units connected to the CIT 200 3 To the address D1001 to D1004 set the number of CCT 235 10 units connected to the CPT 20A 4 To the address D1005 set the communication item Used Not used selection flag See page 29 for the communication item 5 To the address D1006 set the communication item Used Not used selection flag See page 29 for the communication i...

Page 22: ... D0000 address set the top address D1000 in the memory area which is used for the communication with the CIT 200 2 To the address D1000 set the number of CPT 20A 10 units connected to the CIT 200 3 To the address D1001 to D1004 set the number of CCT 235 10 units connected to the CPT 20A 4 To the address D1005 set the communication item Used Not used selection flag See page 29 for the communication...

Page 23: ...er item Communication protocol is Format 4 word unit command W PLC data memory configuration Mitsubishi Calculator link unit AJ71UC24 A1SJ71UC24 R4 and Serial communication unit QJ71C24 e g Top address in the memory R1000 The number of CPT 20A units connected to the CIT 200 5 The number of CCT 235 units connected to the CPT 20A 10 All communication items Used To the address R1000 160 lower 4 bit s...

Page 24: ...ing range 1 to AH R1004 Sets the number of CCT 235 units connected to the CPT 20A to every 4 bit of word data 0 is regarded as 1 unit e g CPT 20A is not connected 0000H 160 Instrument No 12 CPT 20A 161 Instrument No 13 CPT 20A 162 Instrument No 14 CPT 20A 163 Instrument No 15 CPT 20A Setting range 1 to AH R1005 Designates Communication item Used Not used selection flag for every 1 bit of word data...

Page 25: ...al for C series 11 2 Temperature control unit CCT 235 R1120 to R1219 Main proportional band setting Main proportional band from Ch1 to Ch100 Setting range 0 0 to 100 0 R1220 to R1319 Integral time setting Integral time from Ch1 to Ch100 Setting range 0 to 3600 seconds R1320 to R1419 Derivative time setting Derivative time from Ch1 to Ch100 Setting range 0 to 3600 seconds R1420 to R1519 Alarm 1 hig...

Page 26: ... 0 seconds R2620 to R2719 Temperature unit setting Temperature unit from Ch1 to Ch100 0 1 R2720 to R2819 Control action setting Control action from Ch1 to Ch100 0 Heating action 1 Cooling action R2820 to R2919 Alarm 1 action selection Alarm 1 action from Ch1 to Ch100 0 No alarm action 1 High limit alarm 2 High limit alarm with standby 3 Low limit alarm 4 Low limit alarm with standby 5 H L limits a...

Page 27: ...etting range Heating proportional band converted value R4020 to R4119 Cooling action mode selection Cooling action mode from Ch1 to Ch100 0 Air cooling Linear characteristic 1 Oil cooling 1 5th power of the linear characteristic 2 Water cooling 2nd power of the linear characteristic R4120 to R4219 Cooling output ON OFF action hysteresis setting Cooling output ON OFF action hysteresis from Ch1 to C...

Page 28: ...dress Contents Setting range information D1000 Sets the number of CPT 20A units connected to the CIT 200 to every 4 bit of word data 0 is regarded as 1 unit e g 5 CPT 20A units are connected 0005H 160 The number of the CPT 20A 161 Ignored 162 Ignored 163 Ignored Setting range 1 to 10H D1001 Sets the number of CCT 235 units connected to the CPT 20A to every 4 bit of word data 0 is regarded as 1 uni...

Page 29: ...tion 29 Loop break alarm 2 action span 210 Loop break alarm 2 action time 211 Cooling proportional band 212 Cooling proportional cycle 213 Overlap band Dead band 214 Cooling action mode 215 Cooling output ON OFF action hysteresis D1007 Designates Communication item Used Not used selection flag for every 1 bit of word data 1 Used 0 Not used 20 PV input reading 21 MV reading 22 Heater current A valu...

Page 30: ...Heater burnout alarm value from Ch1 to Ch100 Setting range 0 0 to 20 0A W 20A 0 0 to 50 0A W 50A D1820 to D1919 Control action Perform Stop Control action Perform stop from Ch1 to Ch100 0 Control stop 1 Control Perform D1920 to D2019 Auto tuning Perform Cancel Auto tuning Perform Cancel from Ch1 to Ch100 0 AT Cancel 1 AT Perform D2020 to D2119 Alarm 1 high limit hysteresis setting Alarm 1 high lim...

Page 31: ...on time setting Loop break alarm 1 action time from Ch1 to Ch100 Setting range 200 minutes D3220 to D3319 Anti reset windup setting Anti reset windup from Ch1 to Ch100 Setting range 0 to 100 D3320 to D3419 PD Manual reset setting PD Manual reset value from Ch1 to Ch100 Setting range Proportional band converted value however within the range of 199 9 to 999 9 D3420 to D3519 Sensor correction settin...

Page 32: ...4220 to D4319 PV input reading Reading of PV from Ch1 to Ch100 D4320 to D4419 MV Manipulated variable reading Reading of MV from Ch1 to Ch100 D4420 to D4519 Heater current ampere value reading Reading of Heater current value from Ch1 to Ch100 D4520 to D4619 Current status 1 reading Reading of Current status 1 from Ch1 to Ch100 D4620 to D4719 Current status 2 reading Reading of Current status 2 fro...

Page 33: ...a in the data memory should be set within the setting range of CCT 235 since the CIT 200 does not check the allowable setting range of the data Fig 7 3 1 PV reading After the CIT 200 reads PV from the CCT 235 the CIT 200 writes the PV to the PLC memory area where PV input reading is assigned Notice The CIT 200 can monitor the temperature of up to 16 blocks 320 points However if the CIT 200 reads o...

Page 34: ... 1 N procedure OFF 8 2 Initial setting of Host link unit C200H LK202 V1 When communicating with the C series set the addresses from the PLC to store the setting item data of the C series after the power supply to the PLC is turned on Communication is impossible if the addresses for storing the setting item data of the C series are not set Set the program referring to the sample program Fig 8 2 1 a...

Page 35: ...d sets the number of CPT 20A units connected to the CIT 200 the number of the CCT 235 units connected to the CPT 20A and communication items to the preset addresses top address to top address 19 After that The PLC sets address 1 to 4660 decimal and address 2 to 22136 decimal After the power to the CIT 200 is turned on the CIT 200 continues to read the PLC address 0 to 2 After confirming that addre...

Page 36: ...dress Contents Setting range information DM1000 Sets the number of CPT 20A units connected to the CIT 200 to every 4 bit of word data 0 is regarded as 1 unit e g 5 CPT 20A units are connected 0005H 160 The number of the CPT 20A 161 Ignored 162 Ignored 163 Ignored Setting range 1 to 10H DM1001 Sets the number of CCT 235 units connected to the CPT 20A to every 4 bit of word data 0 is regarded as 1 u...

Page 37: ...tion 29 Loop break alarm 2 action span 210 Loop break alarm 2 action time 211 Cooling proportional band 212 Cooling proportional cycle 213 Overlap band Dead band 214 Cooling action mode 215 Cooling output ON OFF action hysteresis DM1007 Designates Communication item Used Not used selection flag for every 1 bit of word data 1 Used 0 Not used 20 PV input reading 21 MV reading 22 Heater current A val...

Page 38: ...120 seconds DM1720 to DM1819 Heater burnout alarm setting Heater burnout alarm value from Ch1 to Ch100 Setting range 0 0 to 20 0A W 20A 0 0 to 50 0A W 50A DM1820 to DM1919 Control action Perform Stop Control action Perform Stop from Ch1 to Ch100 0 Control Stop 1 Control Perform DM1920 to DM2019 Auto tuning Perform Cancel Auto tuning Perform Cancel from Ch1 to Ch100 0 AT Cancel 1 AT Perform DM2020 ...

Page 39: ...o Ch100 Setting range 0 0 to 100 0 Thermocouple RTD 1 to 1000 DC current voltage DM3120 to DM3219 Loop break alarm 1 action time setting Loop break alarm 1 action time from Ch1 to Ch100 Setting range 200 minutes DM3220 to DM3319 Anti reset windup setting Anti reset windup from Ch1 to Ch100 Setting range 0 to 100 DM3320 to DM3419 PD Manual reset setting PD Manual reset value from Ch1 to Ch100 Setti...

Page 40: ...o 1000 DC current voltage DM4220 to DM4319 PV input reading Reading of PV from Ch1 to Ch100 DM4320 to DM4419 MV Manipulated variable reading Reading of MV from Ch1 to Ch100 DM4420 to DM4519 Heater current ampere value reading Reading of Heater current value from Ch1 to Ch100 DM4520 to DM4619 Current status 1 reading Reading of Current status 1 from Ch1 to Ch100 DM4620 to DM4719 Current status 2 re...

Page 41: ... No 3 5 Sets the terminator Connected or Not connected Set the terminator to Connected ON Table 9 1 1 B rate SW No 300bps 600bps 1 200bps 2 400bps 4 800bps 9 600bps 19 200bps Not used 1 OFF ON OFF ON OFF ON OFF ON 2 OFF OFF ON ON OFF OFF ON ON 3 OFF OFF OFF OFF ON ON ON ON SW No Setting item Setting switch ON Setting switch OFF 4 Stop bit 1 bit 2 bits 5 Data length 7 bits 8 bits 6 Even parity Odd ...

Page 42: ... to top address for use of the communication with the CIT 200 The PLC sets the preset addresses top address to top address 19 to the number of CPT 20A units connected to the CIT 200 the number of CCT 235 units connected to the CPT 20A and communication items After that the PLC sets address 1 to 4660 decimal and address 2 to 22136 decimal After the power to the CIT 200 is turned on the CIT 200 cont...

Page 43: ...l Address Contents Setting range information W30 1000 Sets the number of CPT 20A units connected to the CIT 200 to every 4 bit of word data 0 is regarded as 1 unit e g 5 CPT 20A units are connected 0005H 160 The number of the CPT 20A 161 Ignored 162 Ignored 163 Ignored Setting range 1 to 10H W30 1001 Sets the number of CCT 235 units connected to the CPT 20A to every 4 bit of word data 0 is regarde...

Page 44: ...tion 29 Loop break alarm 2 action span 210 Loop break alarm 2 action time 211 Cooling proportional band 212 Cooling proportional cycle 213 Overlap band Dead band 214 Cooling action mode 215 Cooling output ON OFF action hysteresis W30 1007 Designates Communication item Used Not used selection flag for every 1 bit of word data 1 Used 0 Not used 20 PV input reading 21 MV reading 22 Heater current A v...

Page 45: ...ng Heater burnout alarm value from Ch1 to Ch100 Setting range 0 0 to 20 0A W 20A 0 0 to 50 0A W 50A W30 1820 to W30 1919 Control action Perform Stop Control action Perform Stop from Ch1 to Ch100 0 Control Stop 1 Control Perform W30 1920 to W30 2019 Auto tuning Perform Cancel Auto tuning Perform Cancel from Ch1 to Ch100 0 AT Cancel 1 AT Perform W30 2020 to W30 2119 Alarm 1 high limit hysteresis set...

Page 46: ...time setting Loop break alarm 1 action time from Ch1 to Ch100 Setting range 200 minutes W30 3220 to W30 3319 Anti reset windup setting Anti reset windup from Ch1 to Ch100 Setting range 0 to 100 W30 3320 to W30 3419 PD Manual reset setting PD Manual reset value from Ch1 to Ch100 Setting range Proportional band converted value however within the range of 199 9 to 999 9 W30 3420 to W30 3519 Sensor co...

Page 47: ... PV from Ch1 to Ch100 W30 4320 to W30 4419 MV Manipulated variable reading Reading of MV from Ch1 to Ch100 W30 4420 to W30 4519 Heater current ampere value reading Reading of Heater current value from Ch1 to Ch100 W30 4520 to W30 4619 Current status 1 reading Reading of Current status 1 from Ch1 to Ch100 W30 4620 to W30 4719 Current status 2 reading Reading of Current status 2 from Ch1 to Ch100 W3...

Page 48: ...ith the Rotary switch pp 9 10 Communication between the PLC and CIT 200 Set with the DIP switch pp 9 10 Communication line between the PLC and CIT 200 Set with the DIP switch pp 9 10 Function Communication function between the PLC and CIT 200 Communication line Based on RS 232C RS 422A RS 485 Based on RS 422A 120 terminator built in between RXA and RXB Communication system Half duplex communicatio...

Page 49: ...mption Approx 5VA Ambient temperature 0 to 50 Ambient humidity 35 to 85 RH Non condensing Weight Approx 300g Accessories Instruction manual 1 copy Terminal cover when option TC is added 2 pieces 10 2 Optional specifications Terminal cover TC Electric shock protection terminal cover Isolated CPU PWM power Isolated Isolated Isolated Isolated Power supply Power 5V DC Power 12V DC Communication with C...

Page 50: ... cable or fasten the screw of the terminal securely Setup of the CIT 200 is mistaken Refer to pages 9 and 10 Setup of the CPT 20A is mistaken Refer to pages 9 and 10 The wiring of communication cable is not correct Wire it properly pp 13 to 17 Setup of the PLC is not correct Setup of Mitsubishi PLC pp 17 to 19 Setup of Omron PLC pp 34 Setup of Fuji PLC pp 41 Initial setting of the PLC is not corre...

Page 51: ...51 ...

Page 52: ...er No XXXXXX In addition to the above please let us know the details of malfunction if any and the operating conditions No CIT21E2 2004 01 SHINKO TECHNOS CO LTD OVERSEAS DIVISION Reg Office Mail Address URL E mail 2 48 1 Chome Ina Minoo Osaka Japan P O Box 17 Minoo Osaka Japan http www shinko technos co jp overseas shinko technos co jp Tel Fax 81 72 721 2781 81 72 724 1760 ...

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