Structure Of A Data Record For Dynamic Reference Temperature - Siemens SIMATIC S7-1500 Manual

B.2

Structure of a data record for dynamic reference temperature

The WRREC instruction is used to transfer the reference junction temperature via data
record 192 to data record 195 to the module.
The description of the WRREC instruction can be found in the online help from STEP 7.
If you have set the "Dynamic reference temperature" value for the "Reference junction"
parameter, the module expects a new data record at least every 5 minutes. If the module
does not receive a new data record within this time, it generates the "Reference channel
error" diagnostics message.
Assignment of data record and channel
The following assignment applies if no submodules (1 x 4-channel) are configured for the
module:
● Data record 192 for channel 0
● Data record 193 for channel 1
● Data record 194 for channel 2
● Data record 195 for channel 3
Structure of data record 192 for dynamic reference temperature
The following figure shows an example of the structure of data record 192 for channel 0. The
structure for data records 193 to 195 is identical.
Figure B-3
Analog Input Module AI 4xU/I/RTD/TC ST (6ES7531-7QD00-0AB0)
Manual, 09/2016, A5E32366209-AC
B.2 Structure of a data record for dynamic reference temperature
Structure of data record 192
Parameter data records
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