Profibus DP Interface Cards

In DeltaV v12 and later, the number of DSTs per connected

Profibus DP device will be 1 DST in most cases. The DST

type counted will be the most valuable type used to

reference a signal for each device. If references are made

to more than 16 signals from a device, additional signal

references beyond the 16th reference will each count

as a DST. A motor starter, for example, with 4 to 5 signal

references, will consume 1 DST (typical an AI or DO DST).

A remote I/O island will consume 1 DST for the first 16

signal references, and 1 DST for each additional signal

reference beyond the 16th signal reference.