Fig. 174: Connection of the digital inputs to the module CI521-MODTCP
The meaning of the LEDs is described in Displays
Ä
Chapter 1.7.4.1.8.2 “State LEDs”
on page 907.
Connection of the Digital Outputs
The following figure shows the electrical connection of the digital output DO0. Proceed with the
digital outputs DO1 - DO7 in the same way.
Communication Interface Modules (S500) > Modbus
2019/04/173ADR010121, 13, en_US884