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Master Modbus Ladder Routine With Broadcast Management Improved.


Introduction
The standard routine for the management of Modbus has a well-known problem in the management of broadcast messages. Every time you send a message to 0 (broadcast), there is a timeout. Here is a modified version of the routine that eliminates the problem of broadcast messages.
The routine has been changed to properly handle the sending of broadcast messages. The routine, unlike the old version, uses a new timer T14 and two new data memorys d5727 and d5726, respectively of the storage node.
The manual was updated by changing all the items which related to the C200H and correcting images.
 



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CS1_m_3B.cxp - Size: 11713


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Created 2009-05-18
Modified 2009-07-23
Views 3333

 

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