ProSoft Technology MVI56-103M - Manual (Page 60)

Ladder Logic MVI56-103M ♦ ControlLogix Platform
User Manual IEC 60870-5-103 Master Communication Module
Page 60 of 152 ProSoft Technology, Inc.
February 22, 2013
3.2 Command Control Data Object
In order to support the command control option of the module, a controller tag
array, I103Cmds[ ] and two Boolean tags, I103CmdExecute1 and
I103CmdExecute2. The bits in the I103CmdExecute tags trigger ladder logic that
moves the command parameters contained in the I103Cmds[ ] array out to the
module for execution on the networks. The I103Cmds[ ] are created using the
User-defined Data Type, I103Cmd, that contains the data necessary to build a
user command. The following table describes the structure of this object.
Name Data Type Description
DBIndex INT
Session INT
Sector INT
DataType INT
Func INT
Pnt INT
OvrFlg INT
OvrVal INT
Res1 INT
Res2 INT
Refer to the Command List section of this document for the definition of each of
the parameters. This option permits execution of user-generated commands from
the ladder logic directly to controlled devices. This feature is especially important
in generating general commands, ASDU 20 object requests.
Example ladder logic to use this feature is shown in the following rung: