Festo VMPA...-FB-EPL Series, Electronic Manual

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6. Multi I/O modules
6−13
Festo P.BE−CPX−EA−EN en 0705f
Module parameters: Signal extension time
Function no. 4828 + m * 64 + 1 m = module number (0...47)
Description Determines the signal extension time for the relevant input module. Signal
states accepted 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.
Bit Bits 6, 7
Values
Bit 7 6
0 0
0 1
1 0
1 1
Signal extension time
Description
0.5 ms
15 ms (presetting)
50 ms
100 ms [Signal extension]
Remark There is a danger that short signals are not recognized" due to long cycle times
of the higher−order controller. In order that such signals are also taken into
consideration in the control sequence, a signal extension time can be specified
(see section CPX system description). The signal extension time can be activated
channel−by−channel (see channel−specific module parameters).
Tab.6/8: Signal extension time
Module parameters: Signal extension channel x
Function no. 4828 + m * 64 + 6 m = module number (0...47)
Description Determines whether the signal extension for the relevant input channel is to be
enabled or blocked.
Bit Bit 0...7 (channel 0...7)
Values Signal extension input channel ...
0 = blocked (presetting)
1 = enabled [Signal extension Inp Ch ...]
[Disabled]
[Enabled]
Remark The signal extension time can be specified separately for each module
(see function no. 4828 + n; n = m * 64 + 1).
Tab.6/9: Signal extension channel x (channel−specific)