Appendix 6 Universal Serial Communications
App6-9
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>
- When TC485 is used:
- When TC485 is not used:
Install jumpers bRD/+SD and
−
RD/
−
SD.
<4-wire system>
•
Twist-shielded Cables
- Use twist-shielded cables provided by the following manufacturers.
FG
+SD
−
SD
+RD
−
RD
FG
RDA
RDB
SDA
SDB
FG
+SD
−
SD
+RD
−
RD
FG
+SD
−
SD
+RD
−
RD
SG
SG
SG
SG
V+TC485 (SW: Lower)
Terminating resistance
(ON)
* Use twist-shielded cables.
V+TC485 (SW: Lower)
V+TC485 (SW: Lower)
General-purpose
computer
Signal
Name
Signal
Name
Signal
Name
Signal
Name
Terminating resistance
(OFF)
Terminating resistance
(OFF)
FG
+SD
−
SD
+RD
−
RD
FG
RDA
RDB
SDA
SDB
FG
+SD
−
SD
+RD
−
RD
FG
+SD
−
SD
+RD
−
RD
SG
SG
SG
SG
V+TC485 (SW: Upper)
Terminating resistance
(ON)
* Use twist-shielded cables.
V+TC485 (SW: Upper)
V+TC485 (SW: Upper)
General-purpose
computer
Signal
Name
Signal
Name
Signal
Name
Signal
Name
Terminating resistance
(OFF)
Terminating resistance
(OFF)
Manufacturer
Type
Hitachi Cable
CO-SPEV-SB(A)
3P
×
.3SQ
Mitsubishi Cable
SPEV-SB-MPC
3P
×
.3SQ
Содержание V Series
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