User Manual

Functions
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Alarm 1…4: Select the alarms that are to be linked to the logic gate. You can use the checkbox to invert
the signal.
Logic gate An operator has to be defined for the function of the logic gate.
Select a logic operator from the drop-down menu:
– AND
–OR
– XOR
– NAND
– NOR
– NXOR
The alarms themselves are configured via “Settings, Alarms”.
Function description of the logic gate
The logic gate links configured statuses of the respective alarms with an assigned logic
function. Various application-specific statuses can be monitored, depending on how the
connections are combined.
Below, you can find explanations on how the logic operators work:
AND operator
Figure 10-26 Logic gate with AND operator
When all alarms are active at the same time, this signal output is set.
If one of the alarms is no longer active, the signal output is reset.
NAND operator
Figure 10-27 Logic gate with NAND operator
When none of the alarms are active, this signal output is set.