Quantum Composers Jewel Laser Operating Manual - Device Commands
Jewel Manual v1.6 | Quantum Composers
Page 23
Device Command Format
All commands use ASCII characters and are composed of the following fields:
Device Addresses
Address
Device
LA
Laser
COMMAND TYPES
There are two types of commands -- those that set a value or initiate an action (control
commands), and those that request information (query commands). Each device must respond in
the proper manner to each type of command.
Control Commands
A device must always parse a control command and return a response immediately.
If the command is a recognized command and the parameter is valid, then the device
returns an "OK
If the command is not recognized, then the device responds with a "?1
If the command is recognized, but the parameter value is missing or invalid, then the device
responds with a "?
4” or “?5”.
7.
DEVICE COMMANDS
Field
Description
Prefix
Single semicolon character ";", must precede all commands. All
devices will reset their command input buffer when the prefix is
received.
Address
2 ASCII characters. Each device has a unique address which is
programmed into its firmware. See the table below for a list of
addresses.
Delimiter
Single colon character “:”, must follow device address.
Command
String
Commands are specific to each device -- see the following
sections for the commands that each device supports.
Parameters (optional field) Some commands may not require a parameter.
For Query commands immediately follow the command string with
the question mark character ”?”. For non-query commands
immediately follow the command string with a single space
character ” “ followed by the parameter. Multiple commands are
separated by commas.
Terminator
ASCII carriage return character (ODh). The receiving device does
not process any commands until the terminator is received.