ProSoft Technology ControlLogix MVI56E-SMGC User Manual page 76

MVI56E-SMGC ♦ ControlLogix™ Platform
Enhanced FMC722 TPU General Communication Module
5.2.1.5 Network Client Driver
In order for data to be transferred between the module and another device, a TCP/IP
connection must be made between the remote server and the client in the module.
When no TCP/IP connection is established between the client and the remote server,
the module will constantly attempt to make the connection. After the connection is
established, either device can send and receive data.
The IP and service port set in the connection request must be valid for the connection
process to succeed and are configured in the SMGC.CFG file developed by the user. If
either of these two values is set incorrectly, the module will not be able to communicate.
The client has a state value in the status data area. This value is utilized by the ladder
logic to determine if a connection is present on the client. The following table defines the
state status values used by each client:
State Value
-1
0
1
10
11
20
21
30
31
40
41
50
1000
1001
1002
2000
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Description
Client is preparing to open a connection with the server.
The client is waiting to establish the connection with the server.
The client has established a connection with the server and can send and receive
data.
The client is sending the AI tagdata to the server.
The client is waiting for the response to the tag index set request.
The client is sending the AO tag data to the server
The client is waiting for the response to the tag index set request.
The client is sending the DI tagdata to the server.
The client is waiting for the response to the tag index set request.
The client is sending the DO tag data to the server.
The client is waiting for the response to the tag index set request.
The client is performing the configuration data request of the server to obtain all
the configuration data.
The client has initiated a close operation on the connection.
The client is waiting for the close on the connection to complete.
The client is issuing an abort socket is forced closed. (reset) on the connection.
The Delay state after a failure. In this state, the module will delay for 10 seconds
before trying to connect to the server.
Reference
User Manual
Page 76 of 98