7-12 7. KOYO ELECTRONICS
SZ-4/SZ-4M
Programmer Communication Port (PORT1) / Universal Communication Port (PORT2)
No particular setting is necessary on the PLC. The PLC performs communication functions using the following parameters. Set
the following parameters under [Communication Setting] of V9.
Available Device Memory
The available setting range of device memory varies depending on the PLC model. Be sure to set within the range available for
the PLC to be used. Use [TYPE] when assigning indirect device memory for macro programs.
Item Setting Remarks
Baud Rate 9600 bps
For PORT2:
19200 bps can be set in the special register.
Parity Odd
Data Length 8
Stop Bit 1
Data Type HEX
Device Memory TYPE Remarks
R(data register) 00H
I(input) 01H
Q(output) 02H
M(internal relay) 03H
S(stage) 04H
GI (link input) 05H
GQ (link output) 06H
T(timer/contact) 07H
C (counter/contact) 08H
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