ProSoft Technology MVI56-101S - Manual (Page 132)

Reference MVI56-101S ♦ ControlLogix Platform
User Manual IEC 60870-5-101 Slave Communication Module
Page 132 of 193 ProSoft Technology, Inc.
August 2, 2011
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.
Some of the command points may be configured to be selected before executed.
The following illustration shows a typical command communication between the
Master and module operation with a SELECT operation.