Parameters Of The Potential Group - Siemens SIMATIC ET 200SP HA Equipment Manual

Note the following for the parameter assignment:
• If the channel is passivated, this can also be due to excessively high capacitance between the
sensor supply and input. This consists of the capacitance per unit length of the cable and the
capacitance of the employed sensor. If the connected capacitance is not discharged within
the configured time, you must adjust the "Time for short-circuit test (ms)" parameter.
• Dependencies:
– The values available for the input delay depend on the "Time for short-circuit test (ms)" of
– The value "Time for short-circuit test (ms)" must be more than twice as large as the
Startup time of sensor after short-circuit test (ms)
Requirement:
The short-circuit test is enabled.
Function:
In addition to the switch-off time "Time for short-circuit test (ms)", a startup time must also be
specified for performing the short-circuit test. You use this parameter to notify the module how
long the utilized sensor needs to start up after the sensor supply is switched on again. This
prevents an undefined input state due to transient reactions in the sensor.
Note the following for the parameter assignment:
• This parameter must be greater than the transient recovery time of the employed sensor.
• Because the configured time affects the response time of the module, we recommend that
you set the time as short as possible but long enough for reliable transient recovery of your
sensor.
See also
Cross-channel parameters (Page 25)
5.2.6

Parameters of the potential group

Potential group
Specifies whether the I/O module is located on a terminal block with supply voltage infeed
Function:
A potential group consists of a group of directly adjacent I/O modules within an ET 200SP HA
station that are supplied via a common supply voltage.
F-DI 16x24VDC HA
Equipment Manual, 08/2021, A5E45647528-AD
the configured sensor supply.
configured "Input delay (ms)".
Parameters/address space
5.2 Description of parameters
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