Response Of Digital Outputs To Faults Or Simatic Stop; Substitute Value For Dq 0, 1, 2, 3 Following Fault Or Simatic Stop - Siemens SIWAREX WP251 Manual

Scale parameters and functions
8.8 DR 7 Process interfaces
8.8.5

Response of digital outputs to faults or SIMATIC STOP

This parameter allows you to define the response of the digital outputs following a fault of the
SIWAREX module or SIMATIC STOP.
Function
code
0 (default)
1
2
3
8.8.6

Substitute value for DQ 0, 1, 2, 3 following fault or SIMATIC STOP

The outputs are usually reset following a module fault (operating error) or SIMATIC CPU
STOP. This response is the default setting.
If an output is to be set following a fault, this response is defined using this parameter. The
"Response of digital outputs to fault or SIMATIC STOP" parameter must also be set to
"Output substitute value".
Examples
Table 8- 6
Value of bit 0
0 (default)
1
Table 8- 7
Value of bit 2
0 (default)
1
NOTICE
Risk to the plant
If an output is set following a fault (operating error), this can pose a risk for the plant.
Ensure that the parameters are correctly set.
92
Response
Outputs are switched off
Outputs are not switched off (continue)
The relevant substitute value is activated
Outputs are switched on
Bit 0 defines digital output 0 (DQ 0)
Bit 1 defines digital output 2 (DQ 2)
Value of DQ 0 following fault
0
1
Value of DQ 2 following fault
0
1
Manual, 12/2015, A5E37203357A
SIWAREX WP251