Technical data

Evaluation of the GP station list (HDB RECEIVE with ANR 201)
Each CP 5430 TF/CP 5431 FMS which receives global I/Os manages an
internal GP station list. This has a length of 32 bytes.
Each of these 32 bytes provide information about the operating statuses of
all active L2 stations (maximum 32 stations) connected via global objects to
the stations which evaluate the station list.
Table 9.1 illustrates the structure of the GP station list, Fig. 9.10 the
structure of a status byte. You can read the GP station list with the HDB
RECEIVE (ANR 201).
You can only evaluate the station list when HDB RECEIVE (with ANR 201)
was executed without an error.
If no GP input byte was defined, the value "A
H
" is entered in the status bit
of the status word for this job.
Byte no Status byte from stations
0 status byte station 1 (L2 station address 1)
1 status byte station 2 (L2 station address 2)
...
31 status byte station 32 (L2 station address 32)
Table 9.1: Structure of the GP Station List
Communication with Global I/Os B8976060/01
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