IFM Electronic ecosysasi AC2250 Notice De Montage page 6

Addressing
At the factory the address is set to 0.
Addressing with the addressing unit AC1143 or AC1144
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 address between 1A and 31B can be selected by means of the
addressing unit AC1143 or AC1144.
If a slave with the ID code "A" (extended addressing mode pos-
sible) 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 pos-
sible) is used with a master of the first generation (version 2.0),
an address between 1A and 31A must be assigned to this slave.
* default setting