Siemens SIMATIC ET 200SP Equipment Manual page 43

Parameter assignment
Assign the following parameters for the corresponding channel:
Table 5- 4
Parameter
Sensor evaluation
Sensor supply
Short-circuit test
*) Otherwise a diagnostic message will be generated when short-circuit test is activated.
Fault detection
The following table presents fault detection according to the sensor supply and the
parameter assignment for the short-circuit test:
Table 5- 5
Fault
Short-circuit within the channel
pair
Short-circuit with other channels
or other sensor supplies
Short-circuit with L+ to DI
Short-circuit with M to DI
Discrepancy error
Short-circuit with L+ to VS
Short-circuit with M to VS
defective
*) Fault detection only if signals are corrupted. That is, the read signal differs from the sensor signal
(discrepancy error). If there is no signal corruption with respect to the sensor signal, fault detection
is not possible and is not required from a safety standpoint.
Digital input module F-DI 8x24VDC HF (6ES7136-6BA01-0CA0)
Equipment Manual, 10/2021, A5E50578307-AA
Parameter assignment
Channel with internal sensor
supply
1oo2 evaluation, equivalent
Sensor supply n
• Disable
• Enable
Fault detection
Internal sensor supply and
short-circuit test deactivated
n
n
n
or
n
Applications of the F-I/O module
5.3 Application 2: Safety mode SIL3/Cat.3/PLe
Channel with external sensor
supply
External sensor supply*
Disable
Fault detection
External sensor supply
No
Yes*
Yes*
Yes*
Yes
No
Yes
No
Yes*
Yes*
Yes*
Yes
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