6.4.5 MEWTOCOL Slave Function (1:N Communication)
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The computer and the PLC communicate via commands and responses: The computer sends a
command specifying the unit number, and the PLC with that unit number sends a response back to the
computer.
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As for the FP-X0 L40MR and L60MR, connect to the COM port terminals (RS485).
Note) It is recommended to use a commercial RS232C/RS485 converter, SI-35 manufactured by
Lineeye Co., Ltd.
Setting of unit numbers
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By default, the unit number for each communication port is set to 1 in the system register settings.
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For using 1:N communication that connects multiple PLCs on the same transmission line, unit numbers
must be specified so that the destination of the command can be identified. Unit numbers are specified
by the system register.
Setting system registers
No.
Name
Set Value
No. 410
Unit number
1
No. 412
Communication mode
Computer link
No. 413
Communication format
Char. bit: ……
Parity: …..
Stop bit: …………
Terminator: ……..
Header: …………
7 bits/8 bits
None/Odd/Even
1 bit/2 bit
CR/CR+LF/None/ETX
STX not exist / STX exist
No. 415
Baud rate
Note)
19200, 115200 bps
Note1) The settings of the baud rate switches on teh side of the unit and the systerm register No. 415
should be the same.
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