ABB REL 551-C1*2.5 Technical Reference Manual page 9

I/O module (IOM) ............................................................................. 143
Application .................................................................................. 143
Design......................................................................................... 143
Function block............................................................................. 143
Input and output signals.............................................................. 144
Power supply module (PSM) ........................................................... 145
Application .................................................................................. 145
Design......................................................................................... 145
Function block............................................................................. 145
Input and output signals.............................................................. 145
Technical data ............................................................................ 146
Local LCD human machine interface (LCD-HMI) ............................ 147
Application .................................................................................. 147
Design......................................................................................... 147
Serial communication modules (SCM)............................................. 149
SPA/IEC...................................................................................... 149
LON ............................................................................................ 149
Data communication modules (DCM) .............................................. 150
Chapter 11 Diagrams ...................................................................... 151
Terminal diagrams ........................................................................... 152
Terminal diagram, Rex5xx.......................................................... 152
Terminal diagram, REL 551-C1 .................................................. 153
Chapter 12 Configuration ............................................................... 159
Configuration ................................................................................... 160
Contents