Panasonic KT7 Instruction Manual

Text of Panasonic KT7 User Guide:

• Panasonic KT7, 1 COMMUNICATION INSTRUCTION MANUAL TEMPERATURE CONTROLLER KT7 No. KTC2E8 2013.05 To prevent accidents arising from the misuse of this controller, please ensure the operator receives this manual. For this product to which communication function has been added, “1” is entered after the heater burnout alarm indication in the model number. (For the model number and basic operation, refer to the instruction manual for KT7.) Warning Turn the power supply to the instrument off before wiring or checking it. Working or touching the terminal with the power switched on may result in severe injury or death due to Electric Shock. 1. S

• Panasonic KT7, 2 3. System configuration RS-485 multi-drop connection communication (Fig. 3-1) (Fig. 3-2) (Fig. 3-3) 4. Wiring When using communication converter RS-232C • Connector: D-sub 25-pin Connection: RS-232C RS-485 (Communication speed: 2400, 4800, 9600, 19200bps) Connect Terminals 1 and 6 to COM. Connect Terminal 3 to YB (+). Connect Terminal 4 to YA (-). (Fig. 4-1) Host computer RS-485 No.0 No.1 No.2 No.30 KT7 KT7 KT7 KT7 RS-485 Host computer RS-232C Communication converter 232C 485 No.0 No.1 No.30 KT7 KT7 KT7 PLC RS-485 No.0 No.1 No.2 No.30 KT7 KT7 KT7 KT7 Use a RJ-11 type modular plug when connecting to the cable. KT7 Host compute

• Panasonic KT7, 3 • Connector: D-sub 9-pin Connection: RS-232C RS-485 (Communication speed: 2400, 4800, 9600, 19200bps) Connect Terminals 1 and 6 to COM. Connect Terminal 3 to YB (+). (Fig. 4-2) Connect Terminal 4 to YA (-). • When connecting with PLC (RS-485) Connection: RS-485 RS-485 (Communication speed: 2400, 4800, 9600, 19200bps) Connect terminal 3 to YB (+) (Fig. 4-3) Connect terminal 4 to YA (-) Shielded wire Connect only one side of the shielded wire to the FG or GND terminal so that current cannot flow to the shielded wire. (If both sides of the shielded wire are connected to the FG or GND terminal, the circu

• Panasonic KT7, 4 When Lock 1 or Lock 2 is used, every time the set value is changed by the communication function, the changed value is written in the non-volatile memory. If the value changed by the communication function is the same as previous one, it is not written in the non-volatile memory. When Lock 3 is used and if the set value is changed, the changed value is not written in the non-volatile memory until the power to the controller is turned off. This has no relation to the limit for changes in set value. Therefore, be sure to use Lock 3 when changing the set value frequently via communication. 5. Communication procedure Communication starts with command transmission from the host compute

• Panasonic KT7, 5 (2) Slave address Slave address is an individual instrument number on the slave side and is set within the range 00H to 5FH (0 to 95). The master identifies slaves by the slave address of the requested message. The slave informs the master which slave is responding to the master by placing its own address in the response message. [Slave address 00H (broadcast address) can identify all the slaves. However slaves do not respond.] (3) Function code The function code is the command code for the slave to undertake the following action types (Table 6.3-1). (Table 6.3-1) Function code Contents 03 (03H) Reading the set value and information from slaves 06

• Panasonic KT7, 6 • Response message from the slave in exception (error) status (When non-existent data item is sent) (Fig. 6.3-4) The function code MSB is set to 1 for the response message in exception (error) status (83H). The exception code (02H: Non-existent data address) is returned. 2 Setting (Instrument number 1, SV=100 ) • A request message from the master (Fig. 6.3-5) • Response message from the slave in normal status (Fig. 6.3-6) • Response message from the slave in exception (error) status (When a value ou

• Panasonic KT7, 7 Function code is used to discern whether the response is normal (acknowledgement) or if any error (negative acknowledgement) is occurred when the slave returns the response message to the master. When acknowledgement is returned, the slave simply returns the original function code. When negative acknowledgement is returned, the MSB of the original function code is set as 1 for the response. (For example, when the master sends request message setting 10H to function code by mistake, slave returns 90H by setting the MSB to 1, because the former is an illegal function.) For negative acknowledgement, exception code (Table 6.4-2)

• Panasonic KT7, 8 • Response message from the slave in exception (error) status (When non-existent data item is sent) (Fig. 6.4-4) The function code MSB is set to 1 for the response message in exception (error) status (83H). The exception code (02H: Non-existent data address) is returned. 2 Setting (Instrument number 1, SV=100 ) • A request message from the master (Fig. 6.4-5) • Response message from the slave in normal status (Fig. 6.4-6) • Response message from the slave in exception (error) status (When a value out of the setting range is set) (Fig. 6.4-7) The f

• 9 03H/06H 0018H: Scaling high limit Set value 03H/06H 0019H: Scaling low limit Set value 03H/06H 001AH: Decimal point place 0000H: XXXX (No decimal point) 0001H: XXX.X (1 digit after decimal point) 0002H: XX.XX (2 digits after decimal point) 0003H: X.XXX (3 digits after decimal point) 03H/06H 001BH: PV filter time constant Set value 03H/06H 001CH: OUT high limit Set value 03H/06H 001

• Panasonic KT7, 10 0016H: T [–199.9 to 750.0 ] 0017H: N [–320 to 2300 ] 0018H: PL- [0 to 2500 ] 0019H: C (W/Re5-26) [0 to 4200 ] 001AH: Pt100 [–199.9 to 999.9 ] 001BH: JPt100 [–199.9 to 900.0 ] 001CH: Pt100 [–300 to 1500 ] 001DH: JPt100 [–300 to 900 ] 001EH: 4 to 20mA DC [–1999 to 9999] 001FH: 0 to 20mA DC [–1999 to 9999] 0020H: 0 to 1V DC [–1999 to 9999] 0021H: 0 to 5V DC [–1999 to 9999] 0022H: 1 to 5V DC [–1999 to 9999] 0023H: 0 to 10V DC [–1999 to 9999] 03H/06H 0045H: Direct/Reverse action 0000H: Heating (Reverse action) 0001H: Cooling (Direct action) 03H/06H 0046H: Not used 03H/06H 0047H: AT bias Set value 03H/06H 0048H: ARW (anti-reset windup) Set value 03H/06H 00

• Panasonic KT7, 11 03H 00A1H: Instrument information reading 0000 0000 0000 0000 2 15 to 2 0 2 0 digit: Not used (Always 0) 2 1 digit: Not used (Always 0) 2 2 digit: Alarm function 0: Not applied 1: Applied 2 3 digit: Not used (Always 0) 2 4 digit: Not used (Always 0) 2 5 digit: Not used (Always 0) 2 6 digit: HB (Heater burnout alarm) 0: Not applied 1: Applied 2 7 digit: LA (Loop break alarm) 0: Not applied 1: Applied 2 8 to 2 15 digit: Not used (Always 0) (*1) When Lock 3 is designated, the set data is not saved in the memory. This is why the set value reverts to the one b

• 12 9. Troubleshooting If any malfunctions occur, refer to the following items after checking the power supply to the master and the slave. • Problem: Communication failure Check the following The connection or wiring of communication is not secure. Burnout or imperfect contact on the communication cable and the connector. Communication speed of the slave does not coincide with that of the ma

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