1 General Overview
05.91
1.5.3 PLC/PLC communication
PLC/PLC interface: request-controlled data transfer (in this case data transfer to PLC II)
a a a a a a a a a a a a
a a a a a a a a a a a a
a a a a a a a a a a a a
a a a a a a a a a a a a
a a a a a a a a a a a a
a a a a a a a a a a a a
a a a a a a a a a a a a
Call and
parameters
a a a a a a a a
a a a a a a a a
a a a a a a a a
a a a a a a a a
a a a a a a a a
DW 25
a a a a a a a a
a a a a a a a a
a a a a a a a a
a a a a a a a a
a a a a a a a a
DW 40
a a a a a a a a
a a a a a a a a
a a a a a a a a
a a a a a a a a
DB 53
a a a a a a a a
a a a a a a a a
a a a a a a a a
a a a a a a a a
a a a a a a a a
DW 25
a a a a a a a a
a a a a a a a a
a a a a a a a a
a a a a a a a a
a a a a a a a a
DW 29
a a a a a a a
a a a a a a a
a a a a a a a
a a a a a a a
DB 50
Transfer data
to partner PLC
PLC II
operating
system
a a a a a a a a a a a a a a
a a a a a a a a a a a a a a
a a a a a a a a a a a a a a
a a a a a a a a a a a a a a
a a a a a a a a a a a a a a
a a a a a a a a a a a a a a
a a a a a a a a a a a a a a
a a a a a a a a a a a a a a
Link RAM
a a a a a a a a a a a a a a
a a a a a a a a a a a a a a
a a a a a a a a a a a a a a
a a a a a a a a a a a a a a
a a a a a a a a a a a a a a
a a a a a a a a a a a a a a
a a a a a a a a a a a a a a
Max. 16
DWs per
PLC cycle
a a a a a a a
a a a a a a a
a a a a a a a
a a a a a a a
a a a a a a a
FB 64
PLC I
user program
a a a a a a a a a a a a
a a a a a a a a a a a a
a a a a a a a a a a a a
a a a a a a a a a a a a
a a a a a a a a a a a a
a a a a a a a a a a a a
a a a a a a a a a a a a
a a a a a a a a a a a a
a a a a a a a a a a a a
a a a a a a a a a a a a
a a a a a a a a a a a a
PLC I
data
a a a a a a a a a a a a
a a a a a a a a a a a a
a a a a a a a a a a a a
a a a a a a a a a a a a
a a a a a a a a a a a a
a a a a a a a a a a a a
a a a a a a a a a a a a
a a a a a a a a a a a a
a a a a a a a a a a a a
a a a a a a a a a a a a
a a a a a a a a a a a a
Note:
data
received
a a a a a a a a a a a a
a a a a a a a a a a a a
a a a a a a a a a a a a
a a a a a a a a a a a a
a a a a a a a a a a a a
a a a a a a a a a a a a
a a a a a a a a a a a a
a a a a a a a a a a a a
a a a a a a a a a a a a
a a a a a a a a a a a a
a a a a a a a a a a a a
PLC II
data
a a a a a a a a a a
a a a a a a a a a a
a a a a a a a a a a
a a a a a a a a a a
PLC I
a a a a a a a a a a a
a a a a a a a a a a a
a a a a a a a a a a a
a a a a a a a a a a a
a a a a a a a a a a a
PLC II
a a a a a a a a a a a a
a a a a a a a a a a a a
a a a a a a a a a a a a
a a a a a a a a a a a a
a a a a a a a a a a a a
a a a a a a a a a a a a
a a a a a a a a a a a a
a a a a a a a a a a a a
a a a a a a a a a a a a
a a a a a a a a a a a a
a a a a a a a a a a a a
Status of
requests
PLC/PLC interface: communication via DB 59 in jointly used memory
a a a a a a a a a a
a a a a a a a a a a
a a a a a a a a a a
a a a a a a a a a a
PLC I
a a a a a a a a a a a a
a a a a a a a a a a a a
a a a a a a a a a a a a
a a a a a a a a a a a a
PLC II
PLC I
user program
PLC II
user program
a a a a a a a a a a a a a a a
a a a a a a a a a a a a a a a
a a a a a a a a a a a a a a a
a a a a a a a a a a a a a a a
a a a a a a a a a a a a a a a
a a a a a a a a a a a a a a a
a a a a a a a a a a a a a a a
a a a a a a a a a a a a a a a
Link RAM
a a a a a a a
a a a a a a a
a a a a a a a
a a a a a a a
DB 59
a a a a a a a a a a a a a
a a a a a a a a a a a a a
a a a a a a a a a a a a a
a a a a a a a a a a a a a
Semaphores
Access to jointly used memory (DB 59); semaphores are available if required.
1–46
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SINUMERIK 880 (PJ)