Functional Overview; General Concepts; Main Logic Loop; Module Power Up - ProSoft Technology MVI69-GSC CompactLogix User Manual

MVI69-GSC ♦ CompactLogix or MicroLogix Platform
Generic ASCII Serial Communication Module
5.2

Functional Overview

5.2.1 General Concepts

The following discussion explains several concepts that are important for understanding
module operation.

Module Power Up

On power up the module begins performing the following logical functions:
1 Initialize hardware components
Initialize CompactLogix or MicroLogix backplane driver
o
Test and Clear all RAM
o
o Initialize the serial communication ports
2 Module configuration
3 Initialize Module Register space
After this initialization procedure is complete, the module will begin communicating with
other devices on the network, depending on the configuration.

Main Logic Loop

Upon completing the power up configuration process, the module enters an infinite loop
that performs the following functions:
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