ProSoft Technology MVI69-103M - Manual (Page 73)

Reference MVI69-103M ♦ CompactLogix or MicroLogix Platform
IEC 60870-5-103 Master Communication Module
ProSoft Technology, Inc. Page 73 of 131
November 3, 2008
5.2 Functional Overview
This section provides an overview of how the MVI69-103M module transfers data
using the 103M protocol. You should understand the important concepts in this
chapter before you begin installing and configuring the module.
The standards used to build the module are listed in the following table.
Publication Title
IEC 60870-5-103 Companion Standard for the informative interface of protection equipment.
IEC 60870-5-103
Annex A Generic functions --Examples of constructing a directory
IEC 60870-5-1 Transmission Frame Formats
IEC 60870-5-2 Link Transmission Procedures
IEC 60870-5-3 General Structure of Application Data
IEC 60870-5-4 Definition and Coding of Application Information Elements
IEC 60870-5-5 Basic Application Functions
These documents should be obtained, reviewed, and understood in order to fully
appreciate the protocol implementation. Most of the complexity of the protocol is
hidden from the user and simplified in the application of the module. Detailed
questions of about the protocol can be answered by reading these documents. In
addition to calling our technical support group, there is also help available for the
protocol using the following mail list Web Site:
www.TriangleMicroWorks.com/iec870-5
(http://www.trianglemicroworks.com/iec870-5). Go to this site to join the mail list
and to review questions and answers from mail list users.
5.2.1 General Concepts
The following discussion explains several concepts that are important for
understanding the operation of the MVI69-103M module.
Module Power Up
On power up the module begins performing the following logical functions:
1 Initialize hardware components
o Initialize CompactLogix or MicroLogix backplane driver
o Test and clear all RAM
o
Initialize the serial communication ports
2 Read configuration for module from IEC103M.CFG file on Compact Flash
Disk
3 Initialize the databases and ports
4 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 serial networks.