Siemens CU240S DP Instrucciones de operaciones Pagina 176

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Communication
6.5 Communication via PROFINET
Control Units CU240S
176 Operating Instructions, 10/2007, A5E00766042B AC
6.5.4.1 Read Parameters
Requirements
The PROFInet IO controller and supervisor have been commissioned and are fully
operational.
Communication between supervisor, controller and device is operational.
The supervisor can read and write data sets in conformance with Base mode parameter
access.
Read/write request
For the acyclic communication a read/write request must be send to the drive with RD_REC
(SFB52) and WR_REC (SFB53)
Figure 6-14 Acyclic communication for request and response data block.
The request is to be handled using a request and response data block.
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