ProSoft Technology MVI69-GEC User Manual page 57

Generic ascii ethernet communication module
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MVI69-GEC ♦ CompactLogix or MicroLogix Platform
Module status
o
o
Port error status word (bitmapped)
o
Port receive state
Port receive character count
o
Port receive block count
o
Port transmit state
o
o
Port transmit character count
o
Port transmit block count
All data related to the module is contained in a single controller tag with defined objects
to simplify configuration, monitoring, and interfacing with the module
Module configuration and communication configuration data is transferred to the MVI69-
GEC via a pre-defined user data type in the processor
6.2
Functional Overview
6.2.1 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
2
Initialize processor backplane driver
3
Test and clear all RAM
4
Initialize the serial communication ports
5
Initialize the TCP/IP stack and Ethernet interface
6
Initialize servers and clients
7
Set up the serial communication interface for the debug/configuration port
After the module has received the configuration, the module will begin receiving and
transmitting messages with devices on the Ethernet network.
ProSoft Technology, Inc.
February 18, 2014
Contents
User Manual
Page 57 of 86

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