1
COMMUNICATION INSTRUCTION MANUAL
TEMPERATURE CONTROLLER
KT2
No. KTC3E5 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 at the end of the model number.
(For the model number and basic operation, refer to the instruction manual for KT2.)
Warning
Turn the power supply to the instrument off before wiring or checking.
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 KT2
Set the items “Communication protocol selection”, “Instrument number setting”, “Communication speed
selection” after the “Sensor correction setting” in Auxiliary function setting mode 1.
To enter Auxiliary function setting mode 1, press the
key for 3 seconds while holding down the
key.
Display
Name, Functions, Setting range
Default value
Communication protocol selection
Modbus ASCII mode
• Selects the communication protocol.
•
: Unavailable
: Modbus ASCII mode
: Modbus RTU mode
Instrument number setting
0
• Sets the instrument number individually to each instrument
when communicating by connecting plural instruments in
serial communication.
• Setting range: 0 to 95 (However, number of connectable units:
Max. 31 units)
Communication speed selection
9600bps
• Selects a communication speed to be equal to the speed
of the host computer.
•
:
2400bps
:
4800bps
:
9600bps
: 19200bps
2. Terminal arrangement
•
TC
: Thermocouple input terminals
•
RTD
: RTD input terminals
•
DC
: DC current, DC voltage input terminals
For DC current input type, connect 50
shunt resistor (sold separately) between
input terminals.
•
OUT1 : Control output or Heating output
(Heating/Cooling control option) terminals
•
POWER SUPPLY: Power terminals
•
EV1/OUT2: Event output 1 or Cooling output
(Heating/Cooling control option) terminals
•
EV2
: Event output 2 terminals
•
DI
: DI (Digital input) terminals
Three DI functions: SV1/SV2 external
(Fig. 2-1)
selection function, OUT/OFF (RUN/STOP)
external selection and Timer function
•
RS-485: Serial communication terminals
