Request Identifiers, Response Identifiers And Error Numbers - Festo CPX Series Manual

6. Parametrisation

6.1.1 Request identifiers, response identifiers and error numbers

Description
No request
Read parameter value
Change parameter value
Tab. 6/4: Request identifiers and response identifiers
6−4
ReqID
Request Request
0
6
8
Rules:
There are the data types integer, character (char) and
bitfield.
Each parameter value is transmitted as a 32−bit value.
A string is an array of characters that can only be trans
mitted individually via the cyclic channel. The value NUL
(=0x00) is interpreted as the string end. A PLC must al
ways transmit the zero as the last character.
Simple variables have no subindex.
The transmitted subindex can have the values 0 and 1.
The value 0 corresponds to not used". It is recommend
able to set the subindex to 1 as if the parameter were an
array with a component. Values that are > 1 are rejected
with error 3.
ResID (+)
with response with response
0
5
5
Festo P.BE−CPX−CMA X−CONTROL−EN en 0908NH
ResID ( )
in the event of in the event of
an error
0
7
7