IFM Electronic AS-interface AC2250 Notice D'utilisation page 6

Addressing
At the factory the address is set to 0.
Addressing with the addressing unit AC1154
The mounted and wired module can be addressed with the addressing
cable (E70213) via the addressing socket.
Do not remove the addressing plug while live.
If the slave is used with a master of the new generation (version 2.1),
an addr ess between 1A and 31B can be selected by means of the
addressing unit AC1154.
If a slave with the ID code "A" (extended addressing mode possible) is
used with a master of the first generation (version 2.0), the parameter
P3 must be 1 and the output bit D3 = 0*. The output bit D3 must not
be used.
If a slave with the ID code "A" (extended addressing mode possible) is
used with a master of the first generation (version 2.0), an addr e ss bet-
ween 1A and 31A must be assigned to this slave.
* default setting
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