teiriz Posted September 22, 2010 Report Share Posted September 22, 2010 Hi..I'm in the process of identification on process pressure rig 38-714 using Modbus on process controller 38-300 from feedback . I want to know is how the setting and addressing the process control and process variables on the process controller 38-300. I previously had tried to use the NI OPC server and I get a value of 64 537 for Process variable and the value is not changed even though I have changed the parameters of the plant. any suggestions? Quote Link to comment
ShaunR Posted September 22, 2010 Report Share Posted September 22, 2010 Hi..I'm in the process of identification on process pressure rig 38-714 using Modbus on process controller 38-300 from feedback . I want to know is how the setting and addressing the process control and process variables on the process controller 38-300. I previously had tried to use the NI OPC server and I get a value of 64 537 for Process variable and the value is not changed even though I have changed the parameters of the plant. any suggestions? All devices have different address maps for the PV. You will need to read the manual. Quote Link to comment
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