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Hello everyone,
I have a query regarding selection of Analog IO cards for our plant DCS system. We are in the process of ordering our DCS system and considering it as a one time investment. It is the best time to decide whether to go for HART compatible Analog IO cards or not.
To be honest, I haven't yet worked on HART compatible Analog IOs yet in my 9 years of experience. Rather I have worked on conventional 4-20mA signal. I have gone through the internet, and there are a lot of advantages mentioned of HART compatible cards, for example detailed device diagnostic information etc.
Is it preferred to go for HART compatible Analog IO cards (rather than normal Analog IO cards) at the expense of extra cost? Does the benefits outweigh the additional costs? And shall we go only for Analog Inputs like transmitters or shall we go for Analog outputs as well like Control valves positioners and VFDs?
Any help in this regard would be highly appreciated.
I have a query regarding selection of Analog IO cards for our plant DCS system. We are in the process of ordering our DCS system and considering it as a one time investment. It is the best time to decide whether to go for HART compatible Analog IO cards or not.
To be honest, I haven't yet worked on HART compatible Analog IOs yet in my 9 years of experience. Rather I have worked on conventional 4-20mA signal. I have gone through the internet, and there are a lot of advantages mentioned of HART compatible cards, for example detailed device diagnostic information etc.
Is it preferred to go for HART compatible Analog IO cards (rather than normal Analog IO cards) at the expense of extra cost? Does the benefits outweigh the additional costs? And shall we go only for Analog Inputs like transmitters or shall we go for Analog outputs as well like Control valves positioners and VFDs?
Any help in this regard would be highly appreciated.