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AW00118501000 Acquisition Control

Basler racer Camera Link 67

Using Basler pylon to Check the Maximum Allowed Line Rate

You can use the Basler pylon API to read the current value of the Resulting Line Rate Abs

parameter from within your application software using the Basler pylon API. The following code

snippet illustrates using the API to get the parameter value:

// Get the resulting line rate

double resultingLps = Camera.ResultingLineRateAbs.GetValue();

The Resulting Line Rate Abs parameter takes all camera settings that can influence the line rate

into account and indicates the maximum allowed line rate given the current settings.

You can also use the Basler pylon Viewer application to easily read the parameter.

For more information about the pylon API and the pylon Viewer, see Section 3.1 on page 15.

Using Direct Register Access to Check the Maximum Allowed Rate

When using direct register access, you work with the "resulting line period" rather than the line

acquisition rate. Once the resulting line period is known, the maximum allowed line acquisition rate

can be determined by:

To determine the resulting line period:

 Check the value of the Resulting Line Period Raw register.

The Resulting Line Period Raw register takes all of camera settings that can influence the line

period into account and indicates the minimum allowed line period given the current settings.

A value in a raw register is simply an integer value with no units. To determine what the actual line

period will be, you must multiply the value in the raw register by the camera’s time base. The time

base on racer cameras is 1 µs.

For example, if you read the Resulting Line Period Raw register and find that its value is 10000, the

resulting line period would be 10000 µs (10000 x 1 µs = 10000 µs).

For more information about direct register access, see Section 3.2 on page 19.

MaxLine Acquisition Rate

Resulting Line Period in Seconds

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Basler A400K Bedienungsanleitung Seite 75