Is it advisable to connect the "+" (positive) of the 2-wire field transmitter to the +24VDC of the Bussed field power supply while the "-"(negative) to the "-" (negative) terminal of the 4-wire I/O terminal block of the AI card?
Normally, a 2-wire transmitter must use a 2-wire I/O terminal block. But what if I use a 4-wire I/O terminal block? BTW, the reason is that I have 4-wire transmitters connected to the other channels of the AI card and I don't want to replace the already existing 4-wire I/O terminal block. The 2-wire transmitter is just an additional to the card.
Alec,
Short answer no.
If you have traditional AI card with a 4-wire term block, it can also do 2-wire transmitters. Refer to Books On Line (BOL) for your version of DeltaV and IO type for additional information.
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