Chapter 9
209
Logic programming – Function blocks
When an override input is configured, test pulse outputs may not be used for the
configuration of the safety inputs.
Separate lines have to be used for the sensor signals A1 and A2 (B1 and B2).
A line that is independent of other input signals has to be used for the signals for
Reset and Reset required in order to exclude unintentional resetting of the system.
The line must furthermore be laid protected.
The total muting time cannot be set to indefinite (inactive) without additional
precautions being taken. If the total muting time is set to indefinite, additional
measures have to be taken to ensure that no one can access the hazardous area
while muting is activated.
9.10.2 Parameters of the function blocks
The following table lists the possible configuration parameters of the muting function
blocks.
Parameter Possible values
Direction detection Disabled
Only with Parallel muting and Sequential muting:
Forward (A1/A2 first)
Backward (B1/B2 first)
Sequence monitoring Not selectable. Defined by selection of the muting function block:
Enabled: With Sequential muting
Disabled: With Parallel muting or Cross muting
Condition of other sensor
pair for muting start
Both inputs are clear
Only with Parallel muting and Sequential muting:
If last muting sensor is active
Muting end condition With muting sensor pair
With ESPE
Muting total time 0 = disabled, 5 s to 3600 s, resolution 1 s
Add. muting time when
ESPE is clear
0 ms, 200 ms, 500 ms, 1000 ms
Sensor signal gap
monitoring
0 = disabled, 10 to 1000 ms, resolution 10 ms. If enabled, the
value has to be greater than the logic execution time.
Concurrency monitoring
time
0 = disabled, 10 to 3000 ms, resolution 10 ms. If enabled, the
value has to be greater than the logic execution time.
C1 input With
Without
Conveyor input With
Without
Override input With
Without
Min. override pulse time 100 ms
350 ms
Table 92:
Parameters of the muting
function blocks
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