
App6-12 Appendix 6 Universal Serial Communications
1 : n Connection
* When you go to [Comm. Parameters] under the [System Setting], to [Main2], and check [Execute 4
Wire Control], 1 : n connection is not available.
• Wiring
Perform wiring as shown below.
<2-wire system>
+SD
-SD
+RD
-RD
5
1
2
7
8
SG
+SD
-SD
+RD
-RD
SG
+SD
-SD
+RD
-RD
5
1
2
7
8
SG
+SD
-SD
+RD
-RD
SG
+SD
-SD
+RD
-RD
5
1
2
7
8
SG
+SD
-SD
+RD
-RD
SG
FG
RDA
RDB
SDA
SDB
SG
Terminating resistance
(ON)
General-purpose
computer
Signal
Name
Terminating resistance
(OFF)
Terminating resistance
(OFF)
Pin No.
Signal
Name
Signal
Name
Pin No.
Signal
Name
Pin No.
V706 (MJ2)
V706 (MJ2)
V706 (MJ2)
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