User Manual

Logical I/O blocks
General functions
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Prio Use
1 Prio 7…16 Assumption: The effective switch command from priority (7…16) is
Off and is set to active.
Prio 6 Assumption: Priority 6 is not active.
[PrVal] Assumption: The [PrVal] output is set to
Off .
2 Prio 7…16 The effective switch command from priority (7…16) switches from Off to Stage 2 .
Prio 6 Priority 6 adopts the (still unchanged) present value [PrVal=Off] and is set to active.
At the same time, the switch-on delay [DlyOn] starts. Throughout the delay time, priority 6 remains
active – the associated value remains
Off .
[PrVal] Since priority 6 overrides the effective switch command from priority (7…16), the [PrVal] output
remains Off .
3 Prio 7…16 n/a
Prio 6 1. After expiry of the switch-on delay [DlyOn], priority 6 is released.
2. The effective switch command
Stage 2 from priority (7…16) is transmitted to the [PrVal] output.
3. Priority 6 adopts the new value of [PrVal] and is set to active again. At the same time, the minimum
switch-on time [TiOnMin] is started. Priority 6 remains active throughout this monitoring time.
[PrVal] The [PrVal] output changes from
Off to Stage 2 .
4 Prio 7…16 n/a
Prio 6 The minimum switch-on time [TiOnMin] has expired. Priority 6 is released.
[PrVal] When priority 6 ceases to take effect, the [PrVal] output is once again determined by the effective
switch command from priority (7…16).
[PrVal] remains at
Stage 2 .
5 Prio 7…16 None of the information bits for priorities (7…16) is active.
The resulting switch command is therefore determined by the default value [DefVal].
Example: Effect of
priorities 7...16 on
[PrVal]