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Dear Members,
I need some advice regarding HART Mux problem. I tried to retrieve HART data from our 4-wire pH transmitter using P+F KFD2-HMM-16. But I also need to split the signal into two outputs, going back to PLC and DCS. I use MTL5544D to split the signal. I put the splitter after HART mux. The problem is, after I installed the splitter, I could not retrieve the HART data. 4-20 mA signal was perfectly split into two signals. I still got HART data before I added the splitter. Below is the order of our circuit :
4-wire transmitter --> P+F KFD2-HMM-16 through Hart Termination Block P+F FI-PFH-NS0137 --> MTL554D splitter (terminal 1 and 3) --> PLC and DCS
Does different grounding on transmitter, hart mux, and splitter affect the HART signal?
Appreciate your opinion or any idea on this issue.
thanks.
I need some advice regarding HART Mux problem. I tried to retrieve HART data from our 4-wire pH transmitter using P+F KFD2-HMM-16. But I also need to split the signal into two outputs, going back to PLC and DCS. I use MTL5544D to split the signal. I put the splitter after HART mux. The problem is, after I installed the splitter, I could not retrieve the HART data. 4-20 mA signal was perfectly split into two signals. I still got HART data before I added the splitter. Below is the order of our circuit :
4-wire transmitter --> P+F KFD2-HMM-16 through Hart Termination Block P+F FI-PFH-NS0137 --> MTL554D splitter (terminal 1 and 3) --> PLC and DCS
Does different grounding on transmitter, hart mux, and splitter affect the HART signal?
Appreciate your opinion or any idea on this issue.
thanks.