3. Setting Communication Parameters
Set communication parameters in Engineering mode.
To enter Engineeringmode, press and hold the and keys (in that order) for approx. 3 seconds in RUN mode.
Use the or key for settings (or selections).
To register the set data, use the key.
The following outlines the procedure for communication parameter setting.
RUN mode
PV/SV Display
+ (3 sec)
Engineering mode
Set value lock
(Several times)
Communication protocol
Characters,
Factory Default
Setting Item, Function, Setting Range
Communication protocol
• Selects the communication protocol.
• Selection item:
MEWTOCOL
Modbus ASCII
Modbus RTU
Modbus ASCII (KT4 command allocation)
Modbus RTU (KT4 command allocation)
Instrument number
• Sets the instrument number.
The instrument numbers should be set one by one when multiple instruments are
connected in Serial communication, otherwise communication is not possible.
• Setting range: 1 to 95 [Do not use 0 (zero) – 0 cannot be used as an instrument number.]
Communication speed
• Selects a communication speed equal to that of the host computer.
• Selection item:
9600 bps
19200 bps
38400 bps
Data bit/Parity
• Selects the data bit and parity.
• Selection item:
8 bits/No parity
7 bits/No parity
8 bits/Even
7 bits/Even
8 bits/Odd
7 bits/Odd
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