RS422 connection diagram 11)
External cable
GT11H-C-37P side
RDA
6
RDB
7
SDA
2
SDB
3
RSA
4
RSB
5
CSA
8
CSB
9
SG
10
FG(Shield)
1
*1
Connect FG grounding to the appropriate part of a cable shield
line.
*2
Connect a terminating resistor (approximately 100 to 500Ω)
to the PLC to be a terminal.
RS422 connection diagram 13)
Connector conversion
box side
RDA
2
RDB
7
SDA
1
SDB
6
RSA
3
RSB
8
CSA
4
CSB
9
SG
5
FG
-
*1
Connect FG grounding to the appropriate part of a cable shield line.
*2
Connect a terminating resistor (approximately 150Ω) to the PLC at a terminal station.
When the number of links exceeds 30, use a transmission line conversion unit D-01CV per 30 links.
For details, refer to the following manual.
36 - 22
36. CONNECTION TO KOYO EI PLC
36.3 Connection Diagram
KOYO EI PLC side
+TXD3
9
-TXD3
10
+RXD3
13
-RXD3
6
-
1
* 2
-
2 to 5
-
8
SG
7
+RTS
11
-RTS
12
+CTS
14
* 1
-CTS
15
KOYO EI PLC side
+TXD
14
-TXD
16
+RXD
9
-RXD
10
-
1 to 6
-
8
-
12
-
13
SG
7
-
15
-
17
-RTS
18
+RTS
19
-
20 to 22
-CTS
23
+CTS
11
-
* 1
24, 25
KOYO EI PLC user's Manual
RS422 connection diagram 12)
External cable
GT11H-C side
RDA
O/R (A)
RDB
O/BK (A)
SDA
W/R (A)
SDB
W/BK (A)
RSA
GY/R (A)
RSB
GY/BK (A)
CSA
Y/R (A)
CSB
Y/BK (A)
SG
PK/R (A)
FG(Shield)
Shield
*1
Connect FG grounding to the appropriate part of a cable shield
line.
*2
Connect a terminating resistor (approximately 100 to 500Ω)
to the PLC to be a terminal.
KOYO EI PLC side
+TXD
-TXD
+RXD
-RXD
-
1 to 6
* 2
-
-
-
SG
-
-
-RTS
+RTS
-
20 to 22
-CTS
+CTS
-
* 1
24, 25
KOYO EI PLC side
+TXD3
9
-TXD3
10
+RXD3
13
-RXD3
6
-
1
* 2
-
2 to 5
-
8
SG
7
+RTS
11
-RTS
12
+CTS
14
* 1
-CTS
15
14
16
9
10
8
12
13
7
15
17
18
19
23
11