Siemens SIMATIC ET 200SP Manual page 23

Parameters/address space
4.3 Address space
Table 4- 7
Setting
Reference channel of the
module
Internal reference junction
Reference channel of group 0,
1, 2, 3
Fixed reference temperature
Setting
Channel x Reference junction
activated
Diagnostics: Overflow
Enabling of the diagnostics when the measured value exceeds the overrange.
Diagnostics: Underflow
Enabling of the diagnostics if the measured value falls below the underrange.
Diagnostics: Wire break
Enabling of the diagnostics if the module has no current flow or the current is insufficient for
measurement at the correspondingly assigned input.
Type/range of measurement
See the section Measurement types and measuring ranges (Page 11).
22
TC channel
Description
The corresponding TC channel uses channel 0 of the same module
as the reference junction temperature. This must be configured as
"Thermal resistor Pt 100 climatic range Degrees Celsius" and
"No reference channel mode"; otherwise, Diagnostics: Reference
junction is triggered.
The reference junction temperature is read by an internal
temperature sensor on the BaseUnit. Diagnostics: Reference
junction is triggered if there is an incorrect BaseUnit type.
The channel acts as a receiver for the reference junction
temperature of the group.
The reference temperature of the thermocouple is set to 0 °C. As a
result, no temperature compensation is performed.
Description
Disable: Channel x is configured with the setting "Fixed
•
reference temperature".
Enable: Channel x is configured with the setting selected above.
•
Analog input module AI 8xRTD/TC 2-wire HF (6ES7134-6JF00-0CA1)
Manual, 02/2014, A5E32942580-AA