Epson V7 User Manual
3
4. n : 1 Connection (Multi-link)
3-17
Ser
Wiring
Connection with Link Unit
Use the RS-485 2-wire connection. (It is recommended that Hakko Electronics’ optional
terminal converter “TC485” be used.)
terminal converter “TC485” be used.)
• When TC485 is used:
Set “2-wire connection” at the DIP switch (SW1) on TC485. When a jumper is required
on the PLC:
on the PLC:
When no jumper is required on the PLC:
• When TC485 is not used:
Install jumpers between +RD/+SD and
−RD/−SD.
FG
+RD
-RD
+SD
-SD
SG
SG
TC485
FG
+RD
-RD
+SD
-SD
SG
TC485
FG
+RD
-RD
+SD
-SD
SG
TC485
Terminating resistance
(OFF)
Signal
Name
Shield
Shield
Shield
To the PLC’s
RS422 port of the
link unit
Send data (+)
Send data (
−)
Receive data (+)
Receive data (
−)
Terminating resistance
(ON)
Terminating resistance
(OFF)
Terminating resistance
(ON)
Signal
Name
Signal
Name
FG
+RD
-RD
+SD
-SD
SG
TC485
FG
+RD
-RD
+SD
-SD
SG
TC485
FG
+RD
-RD
+SD
-SD
SG
TC485
SG
Terminating resistance
(OFF)
Signal
Name
Shield
Shield
Shield
To the PLC’s
RS422 port of the
link unit
Send data (+)
Send data (
−)
Terminating resistance
(ON)
Terminating resistance
(OFF)
Terminating resistance
(ON)
Signal
Name
Signal
Name