Command Character Set And Syntax - DataKinetics DSC110 User Manual

Signalling converter
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The system maintains two timers during the log on session, a "auto log off
warning" timer and a "auto log off " timer. Both are restarted each time a new
command is input. When the auto log off warning time out expires an auto log off
warning message is output to the terminal and any partially entered command
discarded. The system will then output a command prompt to the terminal. If no
command is input before the auto log off time out expires, the log on session is
ended. The duration of both these timers is user-configurable and can even be
disabled completely.
When log off is initiated, a message consisting of the system identity followed by
<calendar date> <time of day>
logged off at
is output to the operator's terminal. The converter will then initiate the appropriate
procedure to end the connection to the operator's terminal.

7.3 Command Character Set and Syntax

The only characters used for commands and parameters are:
The letters A to Z and a to z, referred to as <letter>. The case of characters in
command names and parameter names is not significant.
The digits 0 to 9, referred to as <digit>
- (hyphen), CR (FE5), SP (space), $(dollar), & (ampersand), * (asterisk),
: (colon), ; (semicolon) / (solidus), . (full stop/period) and = (equals sign)
The DEL (Delete) character or the BS (Backspace) character is used to delete
characters on the current line.
The CAN character (control X) is used as an abort character.
It is possible to indicate several simple values for the same parameter by grouping
parameter arguments using the operators & or &&. For example 3&6 indicates
the simple parameter arguments 3 and 6. A sequence of consecutive simple
parameter arguments is indicated by writing the lower and upper simple parameter
arguments separated by &&, hence 4&&8 indicates the simple parameter
arguments 4, 5, 6, 7 and 8.
Comments are allowed in command input, and may appear in any position on the
command line. A comment is defined as a character string enclosed between the
separators /* (solidus asterisk) and */ (asterisk solidus), where the character string
may contain any characters except the format effector characters (HT – Horizontal
Tab, LF – Line Feed, VT – Vertical Tab, FF – Form Feed and CR – Carriage
Return) and the sequence */.
DataKinetics DSC110 / DSC210 User Manual Issue 12
Page 37

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