The 170 ADM 540 80 TSX Momentum I/O base supports 6 discrete inputs and 3 discrete outputs. This section contains information about the mapping of the I/O data into input words and output words.

This module is I/O mapped as 6 input words and 3 output words. The Processor sends 3 bits of discrete output data to the 170 ADM 540 80 base as a single low byte (8-bits), and the base returns 6 input data bits in a single low byte (8-bits) to the processor. The inputs are field wired to row 2, and the outputs are field wired to row 3 of the base.

In order to correctly field wire the inputs/outputs and map the input /output data, you need to know which type of Momentum Adapter is mounted on the base.