Parameter Validation; Checking The Camera Status; Status Led - Basler A400K User Manual

3.16 Parameter Validation

Before a modification to a parameter setting becomes active, the microcontroller inside the
camera automatically verifies that the setting causes no conflict. If the camera detects a parameter
error, it will automatically discard the setting and the old setting remains valid.
A parameter error occurs if the parameter is set out of range, the parameter is set to an invalid
value, or the parameters which depend on each other are set in conflict.
Since the CCT+ automatically checks that parameters are set correctly, you will not normally see
a parameter error situation when you set parameters with the CCT+. When you set parameters
using binary commands, you may see parameter error situations if you inadvertently set
parameters to values that are not allowed or are in conflict. If you suspect that the camera is in a
parameter error situation, you can read the value in the Camera Status field of the Camera Status
inquiry register (see page 4-9). If the parameter error bit is set, then a parameter error situation is
present.
A simple way to recover from a parameter error situation is to activate the camera's factory
configuration set (see Section 3.14.3). Activating the factory set will load a set of factory
determined optimal parameters into the camera.
If you are setting the camera's parameters by using binary commands to write to registers, make
sure you check the min, max and increment fields of each register before you set the parameter
values. Setting the values within the min and max and using the specified increments will avoid
parameter errors.

3.17 Checking the Camera Status

A400k series cameras monitor their status by performing a regular series of self checks. You can
view the current camera status in several ways:
• by using the Camera Configuration Tool Plus (see Section 4.1). Check the Camera Status
parameter in the Camera Information parameter group to see if any error codes are present.
• by using binary read/write commands from within your own application to read the value in
the Camera Status field of the Camera Status inquiry register (see page 4-9).
See Section
of using read/write commands.
• by checking the LED on the back of the camera. If certain error conditions are present, the
LED will blink (see Section 6.1).

3.18 Status LED

The A400k has a status LED on the back of the camera. The LED is used to indicate that power
is present and to indicate an error condition if one is detected. See Section
Basler A400k
DRAFT
4.2.1 for an explanation of inquiry registers. See Section
Basic Operation and Features
4.3.1 for an explanation
6.1 for details.
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