Quantum Modbus Port Communication

tabrez

Member
T
Join Date
Sep 2004
Location
aurangabad
Posts
27
Hi there,
I would like to use Quantum Processors's Modbus RS232 port to fetch data from several Modbus Slave instruments. While help tells me that I need to use XMIT or XXMIT block, I have no clue as how to use them. Does single block fetch data from several devices or each Modbus Slave requires one block.? Pls help SOS
 
You need to use one communication block for each Modbus address. You may only have 4 active blocks per port at any one time. XMIT is ussually used with 984 Ladder logic programs and XXMIT is only available for use with IEC programs.
 

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