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Parameter data transfer

PROFIdrive parameter data channel

PROFIdrive DP−V1

EDSMF2133IB EN 5.0

8.3.1.2 Acyclic data transfer

) Note!

A parameter request refers to one or several parameter(s) (multi−parameter

request).

Master

DP−V1 Slave

Parameter request Parameter request

Parameter

processing

Parameter

response

Parameter

response

Write.req

with data (parameter request)

Write.res

without data

Read.req

without data

Read.res(−)

without data

Read.req

without data

Read.res (+)

with data (parameter

response)

Sequence:

ƒ A "Write.req" is used to pass the data set (DB47) to the slave in the form of a

parameter request.

ƒ With "Write.res" the master receives the confirmation for the receipt of the

message.

ƒ The master requests the response of the slave with "Read.req".

ƒ The slave responds with "Read.res (−)" if processing has not yet been completed.

ƒ After parameter processing, the parameter request is completed by transmitting the

parameter response to the master with "Read.res (+)".

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