Operation; Configuring And Connecting The Analog Inputs; Wiring The Inputs For Channels 0 To 12 When Connecting Thermocouples - Siemens SIMATIC S5 Manual

3

Operation

3.1 Configuring and Connecting the Analog Inputs

The analog signals are connected via front connector X3. There are 16 differential inputs
available with protection against overvoltage.
The input sensitivity of the analog inputs can be selected with jumpers:
0 to 51.2 mV for thermal e.m.f. (as supplied)
0 to 512 mV for general voltage input values
All the analog inputs are affected.
3.1.1 Wiring the Inputs for Channels 0 to 12 when Connecting
Thermocouples (0 to 51.2 mV = 2048 Units Resolution)
If the thermocouple is not isolated, the potential difference U
1 V .
PP
É É É É É É É É É É É É É
Fig. 3.1.1/1 Input wiring for a non-isolated thermocouple
IP244
C79000–B8576–C859–02
must not exceed a maximum of
CM
Operation
2–19