Siemens SIMATIC ET 200SP Product Information page 60

Supplements to ET 200SP documentation
2.5 I/O module manuals
Manual AI 4xTC HS (6ES7134-6JD00-0DA1)
New section in Appendix B: "Measured values for wire break and reference channel
mode"
Table 2- 10
Wire break
check
Enable
Enable
Disable
* Parameter assignment not relevant
Table 2- 11 Measured values for a wire break in a TC measurement with enabled reference junction (reference channel)
depending on enabled diagnostic information and parameters
Cas
e
Reference channel
Diagnos- Diagnos-
tics tics un-
derflow
Wire break
1 Enable *
3
2 Disable *
3
3 *
4 *
5 *
* Parameter assignment not relevant
Diagnostics is suppressed in the event of a reference channel error.
1
Measured value taken from the reference channel
2
Channel with line break
3
60
Measured values for a wire break depending on enabled diagnostics and parameters in TC
operating mode
Parameters
Diagnostics
wire break nostics
Enable
Disable
Disable
Parameters
TC channel
Wire break Diagnostics
check wire break
*
3
*
3
* Enable
3
* Enable Disable
3
* Disable Disable
3
Measured value Explanation
Diag-
under-
flow
* 32767 7FFF
H
* 32767 7FFF
H
* Undefined
Diagnostics
underflow
* *
1
* *
1
Enable *
3 3
*
3 3
3 *3
Product information on the documentation of the ET 200SP distributed I/O system
The "wire break" diagnostics is reported.
No diagnostics reported.
A wire break check is carried out (i.e. test
current flows).
No "wire break" diagnostics is reported. No
wire break check is carried out (i.e. no test
current flows). This is required to calibrate
thermocouples, since the test current neces-
sary for a wire break check leads to meas-
urement errors during calibration.
Measured value
Reference channel
32767 7FFF 32767
3 H 3
32767 7FFF 32767
3 H 3
Valid Valid 32767
Valid Valid 32767
Valid Valid
Product Information, 02/2021, A5E03799595-BG
TC channel
7FFF
2 H 2
7FFF
2 H 2
7FFF
3 H 3
7FFF
3 H 3
Undefined
3