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Festo Контроллер позиционирования CPX-CMPX User Manual

Page 173

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B. Parameters and data of the CPX terminal

B−19

Festo P.BE−CPX−SYS−EN en 0902e

Module parameter: Signal extension time

Modules

For modules with digital inputs (see manual for the module)

Function no.

4828 + m * 64 + 1

m = module number (0 ... 47)

Description

Determines the signal extension time for the relevant 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

Typical values

Bit 7 6

0 0
0 1
1 0
1 1

Signal extension time
Description
0.5 ms
15 ms (typical presetting)
50 ms
100 ms

[Signal extension]

Note

There is a danger that short signals are not recognised" due to long cycle times
of the higher−order controller. In order that such signals are taken into consideĆ
ration in the control sequence, a signal extension time can be specified (see
section C.2). The signal extension time can be activated channel−by−channel (see
channel−specific module parameters).

Tab. B/15: Signal extension time

Module parameter: Data format for analogue value of inputs

Modules

For modules with analogue inputs (see manual for the module)

Function no.

4828 + m * 64 + 3

m = module number (0 ... 47)

Description

Determines the data format with which the relevant analogue values are proĆ
cessed internally.

Bit

Bits 0, 1

Values

Data format for analogue value of inputs
See manual for the relevant analogue module

[Input format]

Note

The choice of data format depends on the fieldbus or fieldbus master used and
simplifies evaluation of the analogue values.

Tab. B/16: Data format for analogue value of inputs