Festo CPX-P-8DE-N Series, Description

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3. Input module CPX-P-8DE-N-...
3-34
Festo P.BE-CPX-P-EA-EN en 1209NH English
Module parameter: Signal extension time channel 0 … 3 Handheld
Function no. 4828 + m * 64 + 10 m = Module number (0 ... 47)
Description Specifies the signal extension time for the respective channel. Signal states ac-
cepted as logical input signals usually remain valid at least until the specified
signal extension time (minimum signal duration) has expired. Changes of edge
within the extension time are ignored.
This parameter is only effective for inputs that are operated in the “digital input”
mode (A).
An alteration of the parameter causes an initialisation of the respective channel.
Bit Signal extension time channel 0 … 3 [Signal extension time]
Bit: 1,
3,
5,
7, 0
2
4
6 Duct 0
Duct 1
Duct 2
Duct 3 [Ch 0]
[Ch 1]
[Ch 2]
[Ch 3]
Values 0
0
1
1 0
1
0
1 deactivated (presetting)
15 ms
150 ms
1500 ms [Inactive]
[15 ms]
[150 ms]
[1500 ms]
Comment If a higher-order controller has long cycle times, there is a danger of short signals
from this controller not being “recognised”. In order for such signals to be taken
into consideration in the control sequence, a signal extension time can be spe-
cified. In this module the signal extension time can be specified individually for
each channel.
Tab. 3/24: Signal extension time channel 0 … 3 (channel-specific)
Detailed information regarding the signal extension time can
be found in the CPX system description. The parameter,
however, is module-specific for many other input modules
and influences the behaviour of the entire module. In the
CPX-P-8DE-N-... it is a channel-specific parameter that spe-
cifies the behaviour of an individual channel.