Analog electronic modules
15.9 Dynamic reference temperature for the 4 AI TC High Feature electronic module
ET 200pro distributed I/O system
Operating Instructions, 03/2013, A5E00335544-08
435
Note
The flexibility of the data record DS2 structure enables you to use a separate reference
junction for each channel. The channels can also be combined via the user program in such
a way that they use the same reference junction. This is only possible if you specify the
same temperature value in DS2 for all the channels operating at the same reference junction
temperature.
User program
The following user program shows an example of the "Dynamic ref. temp." compensation
type for channels 0 to 3 of an RTD module's 4 AI TC High Feature electronic module. The
reference junction temperature of the RTD module applies to all the channels of the 4 AI TC
High Feature electronic module.