Structure Of The Data Record For Dynamic Reference Temperature - Siemens simatic s7-1500 User Manual

Parameter data records
B.2 Structure of the data record for dynamic reference temperature
Table B- 14
Thermal resistor
°C
17999
-5999
B.2

Structure of the data record for dynamic reference temperature

The WRREC instruction is used to transfer the reference junction temperature via data
record 192 to data record 200 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 9-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
● Data record 196 for channel 4
● Data record 197 for channel 5
● Data record 198 for channel 6
● Data record 199 for channel 7
● Data record 200 for channel 8
If nine submodules (9 x 1-channel) are configured for the module, each submodule has only
one channel. The parameters of the channel are in data record 192.
Background: Each submodule you address for the data record transfer has only one
channel.
66
Limits for resistance thermometer Cu xxx Climatic
Cu xxx Climatic
(0.00426, 0.00427,
0.00428)
°F K
32765 --- High limit
-7599 --- Low limit
Analog Input Module AI 8xU/R/RTD/TC HF (6ES7531-7PF00-0AB0)
Manual, 09/2016, A5E36647959-AB