SEW-Eurodrive DFE32B PROFINET IO, Руководство пользователя

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Manual – DFE32B Fieldbus Interface PROFINET IO
7
Structure of the PROFINET parameter channel
Parameterization via PROFIdrive Data Set 47
7.2.1 Parameterization via PROFIdrive data set 47 – procedure
Parameters are accessed with the combination of the WRITE RECORD and READ RE-
CORD PROFINET services. The parameterization request is transferred to the IO de-
vice using the WRITE.req , Then it is processed internally.
The controller now sends a READ.req to pick up the parameterization response. The de-
vice sends a positive response READ.res . The user data now contain the parameteriza-
tion response of the parameterization request that was previously sent with WRITE.req
(see the following figure). This mechanism applies to a PROFINET controller.
62208AXX
Figure 4: Telegram sequence for parameter access via Read/Write Record
Controller
PROFINET
SEW-Device
WRITE.req DS47
with data (parameter request)
READ.req DS47
without data
WRITE.res
without data
READ.res(+)
with data (parameter response)
Parameter
Request
Parameter
Processing
Parameter
Response
Parameter
Request
Parameter
Response
0 0
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