Specifications

App3-2 Appendix 3 n : 1 Connection (Multi-link)
Wiring
Connection with Link Unit
For V7 Series:
Use the RS-485 2-wire connection.
(It is recommended that Hakko Electronics’ optional 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:
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
RS-422 port of
the link unit
Receive data (+)
Receive data (−)
Send data (+)
Send 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
RS-422 port of
the link unit
Send/receive
data (+)
Send/receive
data (−)
Terminating resistance
(ON)
Terminating resistance
(OFF)
Terminating resistance
(ON)
Signal
Name
Signal
Name