Connecting Resistance Thermometers To The 465 Analog Input Module - Siemens S5-155U System Manual

9.5.9
Connecting Resistance
Thermometers to the 465
Analog Input Module
System Manual
C79000-B8576-C109-03
The relevant resistance thermometer is fed with a current of 2.5 mA
(I /I ) by a constant current generator via a 6ES5 498-1AA11 card.
C+ C-
The voltage at the Pt 100 is picked off at measurement inputs M+
and M-.
If only inputs 0 to 3 are assigned to resistance thermometers, you can
connect other current and voltage sensors to inputs 4 to 7 by means of
a range card. If you use the Pt 100 for measurement, you cannot utilize
channels 12 to 15.
Note that the mode of the module is set to the 500 mV voltage range.
The 465 Analog Input Module
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