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55.3.2 RS-422 cable
Connection diagram
RS422 connection diagram 1)
Connector conversion
box
side
SDA
1
SDB
6
RDA
2
RDB
7
SG
5
RSA
3
CSA
4
RSB
8
CSB
9
*1
Connect FG grounding to the appropriate part of a cable shield line.
*2
A terminating resistor should be connected to communication module at a terminal station.
RS422 connection diagram 2)
Connector conversion
box
side
SDA
1
SDB
6
RDA
2
RDB
7
SG
5
RSA
3
CSA
4
RSB
8
CSB
9
*1
Connect FG grounding to the appropriate part of a cable shield line.
*2
Terminating resistor should be provided for a PLC which will be a terminal.
55 - 8
55. CONNECTION TO GE PLC
55.3 Connection Diagram
Communication
Module
TERM
24
RD(B')
25
RD(A')
13
SD(B)
21
SD(A)
9
0V
7
RTS(A)
10
CTS(A')
11
RTS(B)
22
CTS(B')
23
SHLD
* 1
1
PLC
RT
9
RD(B')
11
RD(A')
10
SD(B)
13
SD(A)
12
SG
7
RTS(A)
6
CTS(A')
15
RTS(B)
14
CTS(B')
8
* 1
* 2
Terminating resistor120Ω
* 1
* 2
Terminating resistor120Ω
* 1
Communication
Module
TERM
24
RD(B')
25
RD(A')
13
SD(B)
21
SD(A)
9
0V
7
RTS(A)
10
CTS(A')
11
RTS(B)
22
CTS(B')
23
SHLD
1
PLC
RT
9
RD(B')
11
RD(A')
10
SD(B)
13
SD(A)
12
SG
7
RTS(A)
6
CTS(A')
15
RTS(B)
14
CTS(B')
8
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