4.9.2 [96] Acknowledging an error
Type Function Type Function
I1 b Input error reset + O1 b "Message can be acknowl-
edged".
I2 b Input error reset - O2 b inverted output = O1
I3 - - P1 - -
I4 - - P2 - -
Description:
Output 1 becomes TRUE if an acknowledgeable error message is present.
With each positive edge at input 1 or negative edge at input 2 an attempt is made to acknowl-
edge an present error message. If the message cannot be acknowledged (yet), there is no
reaction.
O1 I1 I2 Function
1
0Æ1
x
Acknowl-edge fault.
0 None
1
x
1Æ0
Acknowl-edge fault.
0 None
I1
x x
Automatic Error Acknowledg-
ment
Note:
If output 1 is connected with input 1, faults are acknowledged automatically.
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