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Chapter 5
Installation and Turning power supply on
5.2
Mountable slots for remote module
(1) Master module (EH-TRMME)
Maximum 4 master modules (EH-TRMME) can be mounted on slots that's slot number are 0 to 7 as shown as
Figure 4.2 in the case of setting I/O assignment of master module "REMOTE 2".
There is no limit in the number of mountable master modules when I/O assignment of master module is "Word
4W/4W", and master module can be mountable on any slots on basic base and expansion bases.
Please note that the master module cannot mount on old model base (EH-BS3, EH-BS5, EH-BS8).
Figure 5.3 Mountable slots for master module with I/O assignment "REMOTE 2"
(2) Slave module (EH-TRMLE)
Slave module is mountable on only slot for CPU (right side of power supply module).
5.3
Connection of twisted pair cables
(1) Description of Communication connector
Terminal configuration
A
1]
B
2]
SHD
3]
A
4]
B
5]
SHD
6]
(Note 1) 2 pairs of A, B, and SHD terminals are internally-connected. Therefore, even if a slave module is powered off, it is possible
to continue connection between the master module and other slave modules while operating. However, cables connected to the
connector are disconnected (a disconnected state) because of connection inside module if the connector is unplugged. If the slave
module is replaced while operating when the slave module breaks down, connect 2 cables to the connector beforehand, following the
connection method 2 shown below.
Slot No.
0
1
2
Slot No.
0
1
2
Figure 5.4 Mountable slot for slave module
No.
Signal
Signal name
Transmitted and
1]
A *
received data A
Transmitted and
2]
B *
received data B
Grounding for
3]
SHD *
cable
Transmitted and
A *
4]
received data A
Transmitted and
5]
B *
received data B
SHD * Grounding for
6]
cable
3
4
5
6
7
8
9
3
4
5
6
7
(100/150Ω selectable)
Pulse trans
EH-TRMME,
EH-TRMLE
5 – 2
A
Internal circuit
Terminator
communication
connector
1] A
2] B
TERM
3] SHD
4] A
5] B
6] SHD
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