Prosoft-technology MVI56E-MCMR Manuel d'utilisateur Page 208

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Reference MVI56E-MCMR ControlLogix Platform
User Manual Modbus Communication Module with Reduced Data Block
Page 208 of 225 ProSoft Technology, Inc.
May 13, 2014
6.8.6 Ladder Logic - RSLogix Version 15 and Lower
MSG_BLKS
The MSG_BLKS routine passes data between the module and the ControlLogix
processor using MSG instructions. Data transferred using these blocks is of low-
priority and completely under control of the ladder logic.
The first rung requests the module’s error/status data:
The following illustration shows the format of the MSG block.
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