32 Interface module XN-322-2SSI32.2 Pin assignmentXN300 slice modules 06/16 MN050002 EN www.eaton.com 27132.2 Pin assignmentFigure 146: Pin assignment XN-322-2SSIa X1– C+ encoder 1– C- encoder 1– D+ encoder 1– D- encoder 1b X2– C+ encoder 2– C- encoder 2– D+ encoder 2– D- encoder 232.3 WiringSSI encoders can be run in two different modes:• Binary Mode• Gray Decoder Mode32.3.1 Binary ModeWhen using binary mode, Gray code decoding must be turned off (it is turnedoff by default). This mode can also be used when the encoder delivers Graycode data that includes unencoded extra bits, i.e., as using automatic decod-ing in this case would yield an incorrect final result. In this latter case, decod-ing must be carried out in the PLC program. The encoder's deserialized datastream will be mapped to the channel's relevant data register as a 32-bitvalue.X1C+C-D+D-SUX2C+C-D+D-2SS1①②

Eaton XN300 Manual