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| Object value | Description |
|---|---|
| True | The line is working. |
| False | The line is not working. Note: Solving line failure problems depends on the line category. Each line generates the output file called line_name.log placed in the trace subdirectory of the application directory. The file contains detailed information about the error. |
The communication line value may have the Weak status bit set if a configuration change to the line parameters has occurred that is not dynamically supported (currently a change in the line category) and requires a restart of the communication process or a RELOAD command.
The definition of working of the line depends on its category:
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- closing the line (for lines of categories Serial, Serial Line Redundant, System Serial System&Line Redundant, and RFC2217 Client with the LNSTAT OPEN/CLOSE command will change the value of the line to False.
- closing the TCP/IP-TCP line in the Modbus Client protocol due to the Immediate Disconnect protocol parameter will cause the line value to change to False.
- closing the TCP/IP-TCP line in the IEC 60870-5-104 protocol due to disabling all communication stations will cause the line value to change to False.
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