User Manual

B. Parametrizing via field bus
B−17
Festo GDCP−SFC−LACI−DN−EN en 0812NH
B.2.2 Task identifiers, response identifiers and error numbers
Task identifiers:
ReqID
Description Reply identifier
Positive Negative
0 No job 0 
1 Request parameter
1)
1, 2 7
2 Modify parameter value (word)
1)
1 7
3 Modify parameter value (double word)
1)
2 7
6 Request parameter (array) 4, 5 7
7 Modify parameter value (array, word) 4 7
8 Modify parameter value (array, double word) 5 7
11 Modify parameter value (byte)
1)
11 7
12 Modify parameter value (array, byte) 12 7
1)
When using task numbers for simple variables to access parameters implemented as an array, the
subindex is ignored or set to 0. This means that the first element of an array is always addressed.
2)
Jobs with non−supported job numbers (ReqID) will be answered with Response identifier 7 and
error number 22.
Tab.B/5: Task identifiers