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● If the mounting hook is pressed down, it is locked.
● If the mounting hook is lifted up, it is unlocked.
Press down the mounting hook to lock the PLC to the DIN rail.
When the PLC is not installed on the rail, keep the mounting hook in the locked state.
Keeping the mounting hook unlocked for a prolonged time may cause the hook to
fail.
■ Installing expansion module to the PLC
You can install an expansion module to the PLC with the help of top and bottom
guides on them, as shown below.
Mount an end plate on a side of the PLC or expansion module. To mount the end
plate, hook the bottom of it to the bottom of the DIN rail, rotate the end plate to hook
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