Technical data

➣
At the point when the HDB is executed, the CP 5430 TF transmits all
the output bytes assigned to the ZP. In contrast to the FREE mode, you
determine this point in time in the control program by means of an HDB
SEND call with job number 210.
Procedure with the CYCLE-SYNCHRONIZED mode: master receives
from slave
Explanation of Fig. 10.5:
➣
The byte received by ZP is transferred to the I/O area of the DPR at the
point determined by the execution of the HDB.
PLC
program
execution
area in
CP-DPR
PY0
from BUS
0
10
10
10
9
9
9
The byte
received
by ZP
10
10
9
HDB
execution
HDB
execution
10
t
t
t
Bus
cycle
?
7
PLC
cycle
0
? undefined status
I/O
Fig. 10.5: CYCLE-SYNCHRONIZED Mode: Master Receives from Slave
B8976060/02 Communication with Cyclic I/Os
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