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General procedure – Festo Контроллер позиционирования CPX-CMAX User Manual

Page 306

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6. Parametrisation

6−16

Festo P.BE−CPX−CMA X−CONTROL−EN en 0908NH

General procedure

The module parameters byte 8 ... 11 contain a function head
that controls the handshake between PLC and CMAX.

Design of the function head

Byte

Name

Description

PCB
Byte 8

(P8.0−P8.7)

Parameter
control byte
(PCB)

Request
0 =

Do not execute request

1 =

Request request for axis 1

PSB
Byte 9

(P9.0−P9.7)

Parameter
status byte
(PSB)

Result
0 =

Request being processed

1 =

Request processed successfully

General errors:
−1 =

Request (PCB) faulty

−2 =

Faulty function number (FFB)

−3 =

system initialisation: Request cannot be executed

−4 =

A request is already being processed

Error concerning function 1 (Festo Parameter Channel)
−10 = FPC: Number of parameters (byte 12) is wrong (permissible

1...7)

PFB
Byte 10

(P10.0−P10.7)

Parameter
function byte
(PFB)

Function number
0 =

No function

1 =

Festo Parameter Channel

PLB
Byte 11

(P11.0−P11.7)

Parameter
length byte
(PLB)

reserved for future extensions
must be set to 0

Tab. 6/8: Function head