ProSoft Technology ControlLogix MVI56E-SMGC User Manual page 77

MVI56E-SMGC ♦ ControlLogix™ Platform
Enhanced FMC722 TPU General Communication Module
Ladder logic should only direct messages to the client when it has a state status value of
1. The module will ignore all messages sent to the client with any other state value.
Ladder logic can request the client to close or abort a connection at any time. This is
done by setting the client control word (26) in the output image to a specified value. The
following table describes the values recognized by the module:
Code
0
1
2
In addition to the state value, the module contains a connection value that is also
returned in the status data area. The table following lists the definition of each value:
State Value
-3
-2
-1
0
1
2
3
ProSoft Technology, Inc.
Description
No operation to perform
Close the client socket
Abor the client socket
Description
Server closed connection for client or server is not available.
Unable to open connection with specified server (check IP and service port
values).
Unable to open connection with specified server because of an invalid IP address.
The client is idle and not connected.
The client is set to connect to the server and waiting for the connection to
establish.
The client is connected to the server and can transfer data
The connection is being closed by the client.
Reference
User Manual
Page 77 of 98