Reduced installation time and expense: The DeltaV system’s

S-series I/O interfaces are designed for quick assembly and

error proof maintenance. All carriers snap onto T-DIN rails and

interfaces snap into the I/O slots without the use of any tools.

Each I/O interface has a separate wiring terminal block,

which connects field wiring to the interface. The I/O card can

easily be removed without touching the I/O wiring on the

terminal block. Some I/O cards can also use the fused terminal

block, which is equipped with in-line fuses that can be pulled

to isolate power to the field circuit.

Traditional I/O interfaces have I/O function keys that allow

the terminal block to be set to receive a specific I/O card.

These keys ensure that the correct I/O card is always plugged

into the corresponding terminal block. The keys provide a

safety measure by preventing the wrong I/O card being

installed. It’s incredibly easy to use and gives you time to do more.

The I/O carriers provide integrated bussed field power

distribution to the I/O interfaces.