Omron SYSMAC CS1W-SCB41-V1 - Page 630

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K3T @ Intelligent Signal Processor Protocol Appendix L
5. Ladder Interface Settings
YES: User settings are required for the 3rd and 4th operands of PMCR(260).
NO: Send word allocation: Set the constant 0000 for the 3rd operand (S).
Receive word allocation: Set the constant 0000 for the 4th operand (D).
Connections
The connections used for the K3T@ Intelligent Signal Processor Protocol are shown below.
RS-232C Connections
Note 1. The connection configuration is a one-to-one configuration and the maximum cable length is 15 m.
2. Use shielded twisted-pair cable.
Signal name Abbreviation Signal
direction
Pin No.
Protective ground or earth FG --- 1
Signal ground or common return line SG --- 7
Send data SD Output 2
Receive data RD Input 3
Request to send RS Output 4
Clear to send CS Input 5
Data set ready DR Input 6
Data terminal ready ER Output 20
RS-232C port
K3T#
Serial Communications Board
(CS Series only)
Serial Communications Unit
(CS/CJ Series)
RS-232C
RS-232C
PLC PS
Serial Communica-
tions Unit/Board
Shield
Intelligent Signal
Processor
MAX232C or
equivalent
Signal
Name
Pin
No.
Signal
Name
Te r mi -
nal
RS-232C: D-sub
9-pin female
RS-232C:
Terminal block
FG
SG
SD
RD
RTS
CTS
DSR
DTR
FG
SG
SD
RD
RTS
CTS
DSR
DTR
1
7
2
3
4
5
6
20
1
9
2
3
4
5
7
8