NOTICE!
Risk of damaging the PLC modules!
Overvoltages and short circuits might damage the PLC modules.
– Make sure that all voltage sources (supply and process voltage) are
switched off before you begin with operations at the system.
– Never connect any voltages or signals to reserved terminals (marked with
---). Reserved terminals may carry internal voltages.
The following figure shows the electrical connection of the Ethernet bus module CI522-
MODTCP.
Fig. 187: Connection of the bus module CI522-MODTCP
Further information is provided in the System Technology chapter CI52x-MODTCP.
Connection of the Digital Inputs
The following figure shows the electrical connection of the digital input DI8. Proceed with the
digital inputs DI9 to DI15 in the same way.
Communication Interface Modules (S500) > Modbus
2019/04/173ADR010121, 13, en_US922
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