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Using the Serial Terminals
1. Basic Format
Transmission from the computer begins with STX, then the ID, command, parameter, and ETX are sent in this
order. Add parameters according to the details of control.
Basic control command (without parameter)
Start
(STX)
ID
Separator
(semicolon)
Command
End
(ETX)
1 byte
4 bytes
1 byte
3 bytes
1 byte
Basic control command (with parameters)
Start
(STX)
ID
Separator
(semicolon)
Command
Separator
(colon)
Parameters
End
(ETX)
1 byte
4 bytes
1 byte
3 bytes
1 byte
Undefined length
1 byte
Basic control command (with subcommand)
Start
(STX)
ID
Separator
(semicolon)
Command
Separator
(colon)
1 byte
4 bytes
1 byte
3 bytes
1 byte
Subcommand
Operation
Sign
Parameters
End
(ETX)
5 bytes
1 byte
1 byte
5 bytes
1 byte
Operation
Specifies the method of processing the value specified by parameters.
Code
Description
=
Sets the value specified by the parameter.
_ (underbar)
Adds the value specified by the parameter to the current value.
Sign
Specifies positive or negative of the value specified by parameters.
Code
Description
+
The value specified by the parameter is a positive value or 0 (zero).
The value specified by the parameter is a negative value.
Parameters
Specify the setting or adjustment value by right justification (0 is not suppressed).
For example, when the setting value is "1", set it as "00001".