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Connection (Wiring) Method
6-4
6
6-2 Wiring to the general-purpose communication terminal block
Connect the communication cable for general-purpose communications to the general-purpose
communication terminal block on the JW-32CUM1, as shown below, using a two-wire system. For
general-purpose communications, select one of the four master station functions: Remote I/O, data link
DL1/DL9, and M-net.
L1
L2
SHIELD
FG
JW-34KBM
General-purpose
communication
terminal block
JW-32CUM1
Insulation tape
Communication cable
(general-purpose communications)
To the GND terminal
on the power
supply module
Class 3 ground
Twisted-pair wire
(30 mm max.)
Ground line (200 mm max.)
*1
*1: The SHIELD terminal and FG (frame ground) are connected to
each other internally.
Slave station connection diagram
L1
L2
SHIELD
FG
L1
L2
SHIELD
FG
L1
L2
SHIELD
FG
L1
L2
SHIELD
FG
L1
L2
SHIELD
FG
Class 3 ground Class 3 ground Class 3 ground Class 3 ground Class 3 ground
Master station
00
Slave station
01
Slave station
02
Slave station
03
Slave station
n
M-net
master station
Remote I/O
master station
Data link DL1
master station
Data link DL9
master station
Total length of cable 500 m max.
4
1 km max.
15
1 km max.
15
1 km max. *2
7
Max. number of
slave stations that
can be connected
*2: When connecting modules from other manufacturers, create a system within the shortest
total cable length specified by any of the modules.
- Use shielded, twisted-pair cable as the communication cable you connect to the L1, L2, and SHIELD
terminals.
- Make sure to use one of the following communication cables.
Hitachi Cable: S-IREV-SW2*0.5, S-IREV-SB2*0.5
Fujikura: RG-22B/U
- Make sure to provide a class 3 ground for the FG (GND) terminals of the master and slave stations.
Without a class 3 ground, a communication error may occur due to electrical nose.
- Connect separate wires between each terminal. Do not use one wire for two or more lines, or for links
to one point.
- Do not lay the communication cables parallel to or too close to high voltage or power lines.