27.4 Connection
1 I/O bus
2 Allocation between terminal number and signal name
3 4 yellow LEDs to display the signal states of the analog inputs I0 to I3
4 8 yellow LEDs to display the signal states of the outputs M0 to M3
5 1 green LED to display the state of the process supply voltage UP
6 2 green LEDs to display the states of the motor supply voltages UP3 and UP4
7 4 red LEDs to display errors CH-ERR1 to CH-ERR4
8 Label
9 Terminal unit TU542
All I/O channels (digital and analog) are protected against reverse polarity,
reverse supply and continuous overvoltage up to 30 VDC.
2019/11/15 3ADR024117M02xx, 11, en_US 213
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