GE Profibus - DP Bus Instructions Manual page 15

GEI- 1 fJO346
Operating modes:
Process data fi-om Profibus-DP f
0 1 2 3 PDC output Channel
0 1 2 3, PDC output Memory
PDC output data descriptor
WORD 0 WORD 1 WORD 2 WORD 3
PAR. 1 PAR. 2 PAR. 3 PAR: 4
DRIVE PARAMETER
PAR. 1 PAR. 2 PAR. 3 PAR. 4
WORD 0 WORD 1 WORD 2 WORD 3
0 1 2 3
I
0 1 2 3
PDC input Memory
PDC input Channel
Process data to Profibus-DP i
The "PDC input data descriptor" communication object (input data for the Master) sets the drive parameters
assigned to the Process Data Channel Words. The "PDC output data descriptor" communication object (output
data for the Master) sets the Process Data Channel Word assigned to the drive parameters.
The drive parameters assignment to the Process Data Channel Words is carried out by means of the index and
the subindex of the parameter itself.
Only drive parameters with a 16-Bit width (1 Word) may be assigned to the Process Data Channel.
q 21 -
PROCESS DATA CHANNEL CONTROL