Siemens SIMATIC NET IE/AS-INTERFACE LINK PN IO, Manual

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120
IE/AS − INTERFACE LINK PN IO
as of hardware version 1, as of firmware version V2.0
Release 08/2018
C79000 − G8976 − C216 − 03
8 Using the Data Record Interface
This chapter...
This chapter contains the information you require to access the data record
interface of the IE/AS-i LINK from the PROFINET IO controller.
8.1 Data Record Interface of the IE/AS-i LINK
Significance and Functionality
Using the data record interface, you can control the response of the AS-i master
completely from your user program.
AS-i calls are read and written using the acyclic services of PROFINET IO. You
can do this in the user program of the PROFINET IO controllers with the
“RecordDataRead” (read data record) and “RecordDataWrite” (write data record)
services.
PROFINET IO controller
AS-i
slave 2
AS-i
slave 1
AS-i
slave n
ÍÍÍÍ
ÍÍÍÍ
ÍÍÍÍ
ÎÎÎÎ
ÎÎÎÎ
ÎÎÎÎ
AS-i slaves
ÍÍÍ
ÍÍÍ
ÎÎÎ
ÍÍÍ
ÍÍÍ ÎÎÎ
ÎÎÎ
ÍÍÍ
ÍÍÍ ÎÎÎ
ÎÎÎ
PROFINET
AS-Interface
IE/AS-i LINK
Write data record
S
Job
Acyclic services
Send buffer
for job data
Receive buffer
for response
data
Read data record
S
Response
Data record
Data record
Figure 8-1