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Comment: Notes added on OPA0 rotating log file

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CHARON-AXP console lines COM1 and COM2 have the following parameters:

(info) All the values in the following tables are case insensitive.

alias

Parameteralias
TypeIdentifier
Value

This parameter is used to set an useful name for COM1 or COM2 ports.  It can be any name, for example "Console1", but usually it is "OPA0" for COM1 and "TTA0" for COM2.

This name is logged in CHARON log file, it can also be used for parametrization in CHARON configuration file along with "COM1" and "COM2" identifiers.

The main purpose of this parameter is migration from old CHARON systems (which do not have the described implementation of consoles) to the current design, since it allows retaining the original name used for parametrization, since the rest of the parameters stay the same in both implementations. 

Note

If the "alias" parameter is not specified CHARON log file will miss the name for the given console, for example " : Connected. Remote 127.0.0.1:63516" will be displayed instead of "OPA0 : Connected. Remote 127.0.0.1:63516". So it is always recommended to specify the "alias" parameter.

Example:

set COM2 alias=TTA0



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communication

Parametercommunication
Type

Text string

Value

  • "ascii" - for connection to terminals  (default)

  • "binary" - for binary (packet) protocols, which are used mainly for communicating with PLCs


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Parameterlog
TypeText string
Value

A string specifying a file name to store the content of the console sessions or a directory where the log files for each individual session will be stored.

If an existing directory is specified, CHARON VM automatically enables creation of individual log files, one for each session using the same scheme as used for the generation of the rotating log files. If the "log" parameter is omitted, CHARON VM does not create a console log.

Examples:

set OPA0 log="log.txt"


set OPA0 log="C:\Charon\Logs"


Only existing directory can be used as a value of the "log" parameter.
Note
titleRotating logs notes
  • Specify only an existing directory
  • If you want to store the OPA0 log file in the Charon virtual machine home directory (default for virtual machine log file), use: set OPA0 log=".\."



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log_file_size

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