hugojose Posted May 23, 2013 Report Share Posted May 23, 2013 Hi all. I am trying to configure VTS Trihedral Scada system with a V120 PLC configured as slave, for monitoring a lift station using Modbus protocol. I can read/write from VTS to registers MBs and MIs, however am having a hard time with the floats (MFs registers). According with Unitronics Modbus Slave Table, the Modbus register for MF 0 starts at 7700. I am trying to read MF 20 and I've tried in VTS 47721, 37721, 407721, and 307721 with no results; the VTS Modbus driver does not seem to understand this addressing and simply draws a blank. What am I missing? I've googled and tried researching this issue but have not found much on Unitronics Modbus floats. Any help would be greatly appreciated. Hugo Quote Link to comment Share on other sites More sharing options...
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