22.4 Connection
1 I/O bus
2 Allocation between terminal number and signal name
3 32 yellow LEDs to display the signal states at the digital outputs (O0 to O31)
4 1 green LEDs to display the state of the process supply voltage UP
5 4 red LEDs to display errors
6 Label
7 Terminal unit
Sign for XC version
All I/O channels (digital and analog) are protected against reverse polarity,
reverse supply and continuous overvoltage up to 30 VDC.
2019/11/153ADR024117M02xx, 11, en_US176