Slwagner73
Lifetime Supporting Member
So, gentlemen, I am going to ask if there is any set length that should be followed for a analog signal.
We are installing a system for a plant, and the engineering firm we are working with has not had a very stellar record.
And after discussing with them, (the engineering team), and explaining that the conduit runs, and wire length will be over four hundred feet, would it not make more sense to place a remote IO a lot closer to the end devices, rather than try to push that signal that far? (They are telling the owner I am just being a worry-wart)
To me, a power supply, some Ethernet cabling, and a remote IO would make more sense than the ongoing issues I foresee with the current design.
So, long story short, is there any set limits for 4-20mA cabling.
For the record, they have also spec. 18-2, (shielded). Which, again, seems small for the distance.
We are installing a system for a plant, and the engineering firm we are working with has not had a very stellar record.
And after discussing with them, (the engineering team), and explaining that the conduit runs, and wire length will be over four hundred feet, would it not make more sense to place a remote IO a lot closer to the end devices, rather than try to push that signal that far? (They are telling the owner I am just being a worry-wart)
To me, a power supply, some Ethernet cabling, and a remote IO would make more sense than the ongoing issues I foresee with the current design.
So, long story short, is there any set limits for 4-20mA cabling.
For the record, they have also spec. 18-2, (shielded). Which, again, seems small for the distance.