Siemens SINAMICS S Series List Manual page 1143

2.7 CX32 input/output terminals
Function diagrams
2220 – Digital inputs, electrically isolated (DI 0 ... DI 3)
2230 – Digital inputs/outputs, bidirectional (DI/DO 8 ... DI/DO 9)
2231 – Digital inputs/outputs, bidirectional (DI/DO 10 ... DI/DO 11)
© Siemens AG 2007 All Rights Reserved
SINAMICS S List Manual (LH1), 07/2007
Function Diagrams
CX32 input/output terminals
2-1143
2-1144
2-1145
2-1146