Analog Input/Output Modules

9.5.9Connecting Resistance Thermometers to the 465 Analog Input Module

The relevant resistance thermometer is fed with a current of 2.5 mA (IC+/IC-) by a constant current generator via a 6ES5 498-1AA11 card. 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 coding key. If you use the Pt 100 for measurement, you cannot utilize channels 12 to 15.

Channels 8 to 11 supply the resistance thermometers which are connected at inputs 0 to 3.

Note that the mode of the module is set to the 500 mV voltage range.

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System Manual

C79000-G8576-C199-06

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Image 446
Siemens S5-135U/155U appendix Analog Input/Output Modules