Prosoft-technology MVI69-DNPSNET Manuel d'utilisateur Page 72

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MVI69-DNPSNET CompactLogix or MicroLogix Platform Reference
Distributed Network Protocol Interface Module
Page 72 of 119 ProSoft Technology, Inc.
November 3, 2008
If Block Transfer Size = 240:
Write Block
These blocks of data transfer information from the CompactLogix or MicroLogix
processor to the module and source the input (monitored) data to be used by the
remote client. The structure of the output image used to transfer this data is
shown in the following table.
Offset Description Length
0 Write Block ID 1
1 to n Write Data n
where n = 60, 120, or 240 depending on the Block Transfer Size parameter (refer
to the configuration file).
The Write Block ID is an index value used to determine the location in the
module's database where the data will be placed.
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