User`s manual

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MELSEC-A
4 SETUP AND PREPARATION BEFORE OPERATION
Number
Name and
appearance
Description
Use the switches in STATION NO. "10", "20" and "40" to set the tens of the station number.
Use the switches in STATION NO. "1", "2", "4" and "8" to set the units of the station number.
The switches are all factory-set to OFF.
Always set the station number within the range 1 to 64.
Setting any other number than 1 to 64 will result in an error, flickering the "L ERR." LED.
You cannot set the same station number to two or more stations.
Tens Units
Station Number
40 20 10 8 4 2 1
1 OFF OFF OFF OFF OFF OFF ON
2 OFF OFF OFF OFF OFF ON OFF
3 OFF OFF OFF OFF OFF ON ON
4 OFF OFF OFF OFF ON OFF OFF
10 OFF OFF ON OFF OFF OFF OFF
11 OFF OFF ON OFF OFF OFF ON
64 ON ON OFF OFF ON OFF OFF
(Example) To set the station number to "32", set the switches as indicated below.
Tens Units
Station Number
40 20 10 8 4 2 1
32 OFF ON ON OFF OFF ON OFF
6)
Station number
setting switches
STATION NO.
1
2
4
810
20
40
Confirm the station number setting switch numbers on the seal located on the side face of the connector for
analog I/O.
7)
One-touch
connector for
communication
A one-touch connector for connection of the communication line
When carrying out wiring, connect two optional one-touch connector plugs for communication at top and
bottom.
8)
One-touch
connector for
power supply
and FG
A one-touch connector for connection of the module power supply line and FG.
When carrying out jumper wiring, connect two optional one-touch connector plugs for power supply/FG at top
and bottom.
9)
One-touch
connector for
analog I/O
One-touch connector for analog I/O
Connect a one-touch connector plug when wiring.
10) DIN rail hook Used to mount the module to the DIN rail.
POINT
After power-on, do not change the mode select switch setting.
If you change it midway during operation, the setting at power-on is valid.