Opto22 Ultimate I/O and NI Lookout with Modbus tcp/ip

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Farzad Hemati

I have to develop an application in National Instruments' HMI (Lookout) communication with Opto 22's controller (Ultimate I/O modbus tcp/ip).

How would we define the addresses for data members in Lookout for reading/writing floats and integers. For example we have a floate at address F0D8 2118 (in Opto 22 memory pad) what data member shall be defined in National Instruments' Lookout to read this data?
 
WebconfigPages from Opto have a utility(ModbusAddresConvert.htm) that converts between mem map address and modbus adrresses, it is documented in the SNAP Ultimate I/O Alternate Programming Methods Guide.
 
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