General procedure – Festo Контроллер позиционирования CPX-CMAX User Manual
Page 306
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