Settings - Siemens SITRANS T Series Operating Instructions Manual

● The configuration level of the firmware is blocked against unauthorized operation.
● The function requires SIL of less than 4.
The device fulfills these conditions.
See also
General functional safety (http://www.siemens.com/safety)
Functional safety in process instrumentation (http://www.siemens.com/SIL)
7.5

Settings

Safety-relevant parameters
This table offers you an overview of which safety-relevant parameters must be set.
These parameters depend on which type of sensor you have activated in SIMATIC PDM
Select a type of sensor
Broken wire monitoring
Short-circuit monitoring
Current Output Scaling
Fault Current
1) SIMATIC PDM parameter names could differ from those parameter names in SIPROM T. There-
fore, in case of using SIPROM T, please consult the SIPROM T Operating Instructions.
2) Short circuit threshold shall be ≤ 5 Ohm
Current sensor function and simulation function (only available in SITRANS TH300 via SIMATIC
PDM)
The use of the current sensor function and the simulation in safety-related operations can
result in undesirable operating states.
The use of both functions is not permitted during safety-related operations.
See also
Functions (Page 43)
SITRANS TH200/TH300
Operating Instructions, 08/2015, A5E00393069-04
RTD or Ohm input
ON (by default)
ON
2)
TC or mV input
ON
Not available
Lower Limit: 3.8 mA
Upper Limit: 20.5 mA
22.8 mA or 3.6 mA
Functional safety
7.5 Settings
:
1)
37