Basler A400K User Manual

Contents

Basler A400K User Manual Manual pdf 99 page image

Basic Operation and FeaturesBasler A400k 3-47DRAFT3.16 Parameter ValidationBefore a modification to a parameter setting becomes active, the microcontroller inside thecamera automatically verifies that the setting causes no conflict. If the camera detects a parametererror, 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 invalidvalue, 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 seea parameter error situation when you set parameters with the CCT+. When you set parametersusing binary commands, you may see parameter error situations if you inadvertently setparameters to values that are not allowed or are in conflict. If you suspect that the camera is in aparameter error situation, you can read the value in the Camera Status field of the Camera Statusinquiry register (see page 4-9). If the parameter error bit is set, then a parameter error situation ispresent.A simple way to recover from a parameter error situation is to activate the camera’s factoryconfiguration set (see Section 3.14.3). Activating the factory set will load a set of factorydetermined optimal parameters into the camera.If you are setting the camera’s parameters by using binary commands to write to registers, makesure you check the min, max and increment fields of each register before you set the parametervalues. Setting the values within the min and max and using the specified increments will avoidparameter errors.3.17 Checking the Camera StatusA400k series cameras monitor their status by performing a regular series of self checks. You canview the current camera status in several ways:• by using the Camera Configuration Tool Plus (see Section 4.1). Check the Camera Statusparameter 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 inthe Camera Status field of the Camera Status inquiry register (see page 4-9).See Section 4.2.1 for an explanation of inquiry registers. See Section 4.3.1 for an explanationof using read/write commands.• by checking the LED on the back of the camera. If certain error conditions are present, theLED will blink (see Section 6.1).3.18 Status LEDThe A400k has a status LED on the back of the camera. The LED is used to indicate that poweris present and to indicate an error condition if one is detected. See Section 6.1 for details.