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COMMUNICATION INSTRUCTION MANUAL
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. Setup of the KT7
Set the items "Communication protocol selection", "Instrument number setting", "Communication speed
selection" "Parity selection" and "Stop bit selection" after the "Sensor correction setting" in the Auxiliary
function setting mode 1.
To enter Auxiliary function setting mode 1, press the
key.
Character
(PV display)
Communication protocol selection
• Selects the Communication protocol.
• Modbus ASCII mode:
Modbus RTU mode:
Instrument number setting
• Sets individual instrument number for each unit when communicating by
connecting plural controllers in serial communication.
Up to 31 units can be connected, however, the instrument number can be set
within the range 0 to 95.
• 0 to 95
Communication speed selection
• Selects a communication speed to correspond to that of host computer.
• 2400bps:
Parity selection
• Selects the parity.
• No parity:
Stop bit selection
• Selects the stop bit.
• 1 or 2
2. Terminal arrangement
Modular plug applicable to the modular jack of KT7 with communication function is RJ-11 (6-pin type).
Recommended model: TM20P-66P
For the communication cable, two twisted 2-core cables or one twisted 3-core cable is recommended.
When using one twisted 3-core cable, use either pin 1 or pin 6 for SG of the plug.
Name, Functions and Setting range
, 4800bps:
, Even parity:
(Fig. 2-1)
(Hirose Electric CO.,LTD.)
TEMPERATURE CONTROLLER
key for 3 seconds while holding down the
: Not available.
, 9600bps:
, 19200bps:
, Odd parity:
OUT
RELAY : Relay contact output
№1
SG
№2
NC
V/A
№3
YB(+)
№4
YA(-)
EVT
№5
NC
№6
SG
TC
RTD
DC
RS-485: Serial communication
(Applicable cable diameter: ø0.4 to 0.65mm)
1
KT7
No. KTC2E8 2013.05
Default
(SV display)
Modbus ASCII
0
9600bps
Even
1
: Control output
: DC voltage output /DC current
output
: Event output
[Outputs when Alarm, Loop
break alarm or Heater burnout
alarm (option) is on]
: Thermocouple
: Resistance Temperature Detector
: DC current or DC voltage

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Summary of Contents for Panasonic KT7

  • Page 1 : Resistance Temperature Detector : DC current or DC voltage (Fig. 2-1) RS-485: Serial communication Modular plug applicable to the modular jack of KT7 with communication function is RJ-11 (6-pin type). Recommended model: TM20P-66P (Hirose Electric CO.,LTD.) (Applicable cable diameter: ø0.4 to 0.65mm) For the communication cable, two twisted 2-core cables or one twisted 3-core cable is recommended.
  • Page 2: System Configuration

    3. System configuration RS-485 multi-drop connection communication Host computer RS-485 No.0 No.1 No.2 No.30 (Fig. 3-1) Communication Host computer converter RS-485 RS-232C 232C No.0 No.30 No.1 (Fig. 3-2) RS-485 No.0 No.1 No.2 No.30 (Fig. 3-3) 4. Wiring When using communication converter RS-232C •...
  • Page 3 Do not connect terminator with the communication line because each KT7 has built-in pull-up and pull-down resistors instead of a terminator. If there is a large distance between the PLC and the KT7, connect the terminator on the PLC side. (Connect a terminator of 120 or more resistance.)
  • Page 4: Communication Procedure

    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 computer (hereafter Master) and ends with the response of the KT7 (hereafter Slave). Master Slave Command •...
  • Page 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.
  • Page 6 • Response message from the slave in exception (error) status (When non-existent data item is sent) Slave Function Exception Error check Header Delimiter address code code (3AH) (30H 31H) (38H 33H) (30H 32H) (37H 41H) (0DH 0AH) Number of characters (Fig.
  • Page 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.
  • Page 8 • Response message from the slave in exception (error) status (When non-existent data item is sent) 3.5 idle Slave Function Exception Error check 3.5 idle characters address code code characters (01H) (83H) (02H) (C0F1H) Number of characters (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.
  • Page 9 03H/06H 0018H: Scaling high limit Set value 03H/06H 0019H: Scaling low limit Set value 03H/06H 001AH: Decimal point place 000H : XXXX (No decimal point) 1H: XXX.X (1 digit after decimal point) 2H: XX.XX (2 digits after decimal point) 3H: X.XXX (3 digits after decimal point) 03H/06H 001BH: PV filter time constant Set value...
  • Page 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]...
  • Page 11: Specifications

    0000 0000 0000 0000 00A1H: Instrument information reading digit: Not used (Always 0) digit: Not used (Always 0) digit: Alarm function 0: Not applied 1: Applied digit: Not used (Always 0) digit: Not used (Always 0) digit: Not used (Always 0) digit: HB (Heater burnout alarm) 0: Not applied 1: Applied...
  • Page 12: Troubleshooting

    Phone: +81-568-33-7861 FAX: +81-568-33-8591 About our sale network, please visit our website. PRINTED IN JAPAN © Panasonic Industrial Devices SUNX Co., Ltd. 2012 Pursuant to the directive 2004/108/EC, article 9(2) Panasonic Electric Works Europe AG Rudolf-Diesel-Ring 2 83607 Holzkirchen, Germany...

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