I/O Mapping

Overview

The 170 ADO 730 50 TSX Momentum I/O base supports 8 discrete outputs. This section contains information about the mapping of the I/O data into output words.

I/O Map

The I/O base may be mapped as one output word, or as 8 discrete output points.

IEC vs. Ladder Logic

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

Adapters may be either IEC compliant or 984 Ladder Logic compliant.

	IEC Compliant	984 Ladder Logic Compliant
Momentum Processor Adapters	All	None
Momentum Communication Adapters	All, except 170 NEF 110 21 170 NEF 160 21 170 FNT 110 00 170 FNT 110 01	170 NEF 110 21 170 NEF 160 21 170 FNT 110 00 170 FNT 110 01

Data Mapping

The figure below shows how data is mapped on the I/O base with an IEC Compliant adapter. When the I/O is mapped as discrete points (0x), the MSB is assigned to Pin 1. When the I/O is mapped as word or register (4x), the LSB (bit 0) is assigned to Pin 1.

outputs

The figure below shows how data is mapped on the I/O base with a Ladder Logic Compliant adapter. When the I/O is mapped as discrete points (0x), the LSB is assigned to Pin 1. When the I/O is mapped as word or register (4x), the MSB (bit 15) is assigned to Pin 1.

outputs