Festo 1971599, Руководство пользователя

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1. System overview CPX-FVDA-P2
1-20
Festo P.BE-CPX-FVDA-P2-EN en 1209NH English
Acknowledgment se-
quence If channel-wise passivation is used, acknowledgment
through user program must be ensured.
The following sequence description ( Tab. 1/9) shows the
relevant bits for the channel-wise passivation in the input and
output image of the module.
No
. Process Channel-
wise pas-
sivation
1)
Setpoint
status of
the
output
channel
1)
Actual
status of
the
output
channel
2)
Channel
fault
status
2)
Acknow-
ledgment
of the
channel
fault
1)
1 Module is not
passivated 1 (active) X X 0 0
Channel fault appears
2 Module detected the
fault 1 (active) X 0 1 0
F-Host detects the
fault of the module
3 F-Host passivates the
output 1 (active) 0 0 1 0
Fault is eliminated
User acknowledged
the fault (at least 1
F-I/O-cycle) 1 (active) 0 0 1 1
4 Channel is no longer
passivated 1 (active) X X 0 0
The grey-marked cells emphasise the bits relevant for the respective table line.
1)
Bit in the output image ( Tab. 1/7)
2)
Bit in the input image ( Tab. 1/8)
X = Signal irrelevant; 1 = logic 1; 0 = logic 0
Tab. 1/9: Sequence description of channel fault acknowledgment – example