ABB AC500 V3 Hardware Manual page 736

Device specifications
Communication interface modules (S500) > Modbus
Fig. 137: Connection of the digital inputs to the module CI521-MODTCP
The meaning of the LEDs is described in Displays
on page 760.
Connection of the digital outputs
The following figure shows the connection of the digital output DO0. Proceed with the digital
outputs DO1 - DO7 in the same way.
736
Ä Chapter 1.7.4.1.8.2 "State LEDs"
3ADR010278, 3, en_US 2022/01/31