Control data transfer – ProSoft Technology MVI69-101S User Manual

Page 108

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MVI69-101S ♦ CompactLogix or MicroLogix Platform

Reference

IEC 60870-5-101 Slave Communication Module

Page 108 of 149

ProSoft Technology, Inc.

March 16, 2009

Monitor Point # & Monitor DB Address- You can (optionally) configure a
monitor point to be sent by the module when it receives the command for that
specific point.

Example - Monitor Point Configuration for Command Points:

# Monitor Monitor Require

# Point # DB Address Point # DB Addr Select

# ------- ---------- ------- ------- -------

START

700 3200 100 1600 0

END

So every time the module receives a command for single-command point 700 it
would send a response containing a monitored single-point (information object
address 100 with the value at bit-address 1600).

Require Select - This parameter configures the point to require a Select request
before the Operate command.

Control Data Transfer

The control communication typically occurs when the master sends a command
request to update the module's command points.

The following illustration shows a typical command communication between the
master and module during unbalanced operation.

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