Connection of active-type analog sensors (Current) with galvanically isolated power supply
Fig. 56: Connection example
Current 0 mA...20 mA 1 channel used
Current 4 mA...20 mA 1 channel used
Unused input channels can be left open-circuited, because they are of low resistance.
Connection of active-type analog sensors (Voltage) with no galvanically isolated power supply
UP
ZP
1.0
I0-
1.1
I1-
1.8
UP
1.9
ZP
PTC
2.0
I0+
2.1
I1+
2.8
UP
2.9
ZP
0 ... 10 V
AGND
Fig. 57: Connection example
CAUTION!
The potential difference between AGND and ZP at the module must not be
greater than 1V, not even in case of long lines (see figure Terminal Assignment).
I/O modules > Analog I/O modules
2022/01/31 3ADR010278, 3, en_US 507