Festo CPX DE Series Manual page 169

6. Multi I/O modules
Module parameters: Signal extension time
Function no. 4828 + m * 64 + 1
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 Signal extension time
Bit 7 6 Description
0 0 0.5 ms
0 1 15 ms (presetting)
1 0 50 ms
1 1 100 ms
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
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
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)
Festo P.BE−CPX−EA−EN en 05602d
m = module number (0...47)
m = module number (0...47)
[Signal extension Inp Ch ...]
[Disabled]
[Enabled]
[Signal extension]
6−13