Eclipse EC-11-xxx40, Руководство пользователя

Страница: 47 / 56

EC-11 User’s Manual
47
DALSA Corp. 03-32-00418-05
A
P P E N D I X
D :
Communications Protocol
D1 Protocol Overview
This protocol defines the method used to control the camera via an RS232 serial interface.
The communication protocol defines the command format used and error messages
provided.
Note:
This document is preliminary. Additional commands and functionality will
continue to be implemented. Backward compatibility is planned for future cameras.
D2 Protocol Features
•
ASCII-based
Camera Serial Port Defaults
•
8 data bits
•
1 stop bit
•
No parity
•
No flow control
•
9.6Kbps
•
Camera does not echo characters
D3 Command Format
There are two methods for entering the commands: In long form each command is
written in its entirety. In short form, only a predefined abbreviation is required.
Table 4: Command Format
Short Form
command_short_form [parameters...] CR
Long Form
command_long_form [parameters...] CR
When entering commands, remember that:
•
Carriage return (CR) Ends each command. The linefeed character is ignored.
•
All values are assumed to be in decimal.
•
Values in square brackets are optional.
•
Command terms uniquely specify each command
•
The camera will answer each command with either "OK >" or "Error x: Error Message
>". The ">" is always the last character sent by the camera.