4 Start up
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Recapitulatory the serial commands have the following fixed scheme:
>
B=wxyz[CR]
B
Command or parameter letter (observe upper and lower case printing!)
=
Sign of equality (0x3D)
wxyz
1-4 digits long value in hexadecimal number representation (capital letters)
[CR]
Carriage Return (0x0D)
[LF]
Line Feed (0x0A)
Example (set Baudrate to 115200 Baud using only RS232 at 15-pin D-SUB jack):
1.
The user sends the four characters
s=A[CR]
2.
The camera answers with seven characters
s=A[CR][CR][LF]>
3.
A terminal program without local echo displays
s=A
>
After successful execution of the command, the command input character ">" is output. If any error
occurred, somewhere previous to the prompt a question mark character "?" is displayed.
To query a parameter value, send the corresponding command letter followed by the equality sign and
a question mark character:
>
s=?[CR]
If the intended action does not need any parameter, it is also sufficient in most cases - as a shortcut - to
send the command letter only, directly followed by [CR].
At the beginning of a command sequence it is good practice to check the serial communication by
sending just a [CR] to the camera and verify that the command prompt ">" is returned. There is an
input buffer holding a few characters but no hardware handshake. Thus a sequence of commands
should not be send to the camera without awaiting the intermediate input prompts. Otherwise the
camera’s serial input buffer may overflow.
4.3
Adjust the Image Processing
Subsequently the important commands for quick starting the image correction of the IRC-320 are
mentioned. All further parameters and a description of the correction modules can be found in chapter
7.
The camera is configured ex-factory with parameter settings which ensure a basic image correction. In
the case that the IRC-320 is equipped with multiple correction data sets for different operation
conditions, the image quality can be improved by activating another correction data set if the
conditions of the camera have changed. In addition the IRC-320 models feature an electromechanical
shutter that can further enhance the quality of the corrected image. The selection of a good data set can
be done automatically by use of the serial command
k=0
. This command also controls the shutter.
Example:
Start an automatic calibration process.
>
k=0[CR]
S=0A
M=87C8
>
The calibration process needs a few seconds to finish. Please note that during this time no image data
is output. Avoid triggering the camera via CC1 or opto coupler input while the calibration is in
VDS Vosskühler GmbH
IRC-320
