Wiring Diagrams - Fuji Electric Monitouch V9 Series Connection Manual

1. Overview
1-20
Connection Method 2
Connecting the CN1 of the master to the CN1s of the slaves
Master
(= Local port 1)
MJ1/MJ2 CN1
(a)
Communication between V9 units: RS-485 (2-wire system), maximum length = 500 m
PLC
(a) Connection between master and PLC
Choose the connection port between MJ1 and MJ2.
The communication settings and connection method are the same as those for 1 : 1 connection.
(b), (c), (d) Connection between master and slave
Use the RS-485 (2-wire system) connection. It is convenient to install the optional terminal converter "TC-D9". Use
twisted-pair cables of 0.3 mm sq or greater. The maximum length of the wiring is 500 m.

Wiring diagrams

 When a TC-D9 is used:
Set the slide switch of "TC-D9" to ON (2-wire system).
Master
CN1+TC-D9
Name
FG
+SD
−SD
+RD
−RD
SG
Terminating
resistance (ON)
* As a measure against noise, connect the frame ground terminal of each V9 series at one side only.
 When no TC-D9 is used:
Install jumpers between +SD and +RD as well as -SD and -RD.
Master
CN1
No.
Name
4 +SD
−
3
1 +RD
−
2
5
Terminating
resistance (ON)
* As a measure against noise, connect the frame ground terminal of each V9 series at one side only.
Slave
(= Local port 2)
CN1
(c)
(b)
(b) (c)
Slave
CN1 + TC-D9
Name
FG
+SD
−SD
+RD
−RD
SG
Terminating
resistance (OFF)
(b)
Slave
CN1
No. Name
FG FG
4 +SD
−
SD 3 SD
1 +RD
−
RD 2 RD
SG
5 SG
Terminating
resistance (OFF)
Slave
(= Local port 3)
CN1
(d)
(d)
Slave Slave
CN1 + TC-D9 CN1 + TC-D9
Name Name
FG
+SD
+SD
−SD
−SD
+RD
+RD
−RD
−RD
SG
Terminating Terminating
resistance (OFF) resistance (ON)
(c)
Slave
CN1
No. Name
FG
4 +SD
−
3 SD
1 +RD
−
2 RD
5 SG
Terminating
resistance (OFF)
Slave
(= Local port 4)
CN1
FG
SG
(d)
Slave
CN1
No.
Name
FG
4 +SD
−
3
SD
1 +RD
−
2
RD
5 SG
Terminating
resistance (ON)