Lenze 2141, Operating Instructions Manual, Page: 53 / 90

Parameter setting
6-31
L
BA2141 EN 1.0
6.5.1.2 Input variable
network input SNVT_count nviAIFStw;
network input SNVT_count nviAIFIn1;
network input SNVT_count nviAIFIn2;
network input SNVT_count nviAIFIn3;
The input network variable
nviAIFStw
is directly accepted by the AIF control word.
The input network variables
nviAIFIn1
to
nviAIFIn3
are directly accepted by the corresponding
AIF input data words.
1Input range
The possible bandwidth for the output variable is between 0 and 65535.
Standard value
The standard value after a reset is 0 for all four variables.
The standard value for
nviAIFStw
is determined by the configuration properties
nciAIFDefStw
and
nciAIFRecHrtBt
.
nciAIFDefStw
indicates the function to be executed in the event of a
Receive Heartbeat Timeout and
nciAIFRecHrtBt
indicates the variables monitored by a Receive
Heartbeat .
nciAIFRecHrtBt.bit0
= 1 – Timeout monitoring for
nviAIFStw
nciAIFRecHrtBt.bit1
= 1 – Timeout monitoring for
nviAIFIn1
nciAIFRecHrtBt.bit2
= 1 – Timeout monitoring for
nviAIFIn2
nciAIFRecHrtBt.bit3
= 1 – Timeout monitoring for
nviAIFIn3
nciAIFStw
= 0 – No reaction
nciAIFStw
= 1 – Quick stop
nciAIFStw
= 2 – Controller inhibit
If one of the monitored variables gets a Receive Heartbeat Timeout , the function selected in
nciAIFDefStw
will be carried out.
The quick stop functions sets bit 3 in the AIF control word, the controller inhibit function sets bit 9 in
the AIF control word. The functions quick stop and controller inhibit will only be reset after all
monitored variables have been updated within the Receive Timeouts.
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