357
K3T
#
Intelligent Signal Processor Protocol
Appendix I
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
PC PS
Serial Communica-
tions Unit/Board
Shield
Intelligent Signal
Processor
MAX232C or
equivalent
Signal
Name
Pin
No.
Signal
Name
Termi-
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
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