MultiCam Boards Documentation > GRABLINK series Documentation > GRABLINK Full XR Handbook > Functional Specification > Line-Scan Synchronization > Line Rate Modes

Line Rate Modes

This board provides five line rate modes. The line rate mode determines the origin of the downweb line rate; it is user-selectable by means of LineRateMode:

LineRateMode

Description

CAMERA

The downweb line rate originates from the camera.

PERIOD

The downweb line rate is internally generated by a periodic generator

PULSE

The downweb line rate is directly derived from trigger pulses applied to the line trigger input of the grabber.

CONVERT

The downweb line rate is derived from a train of trigger pulses applied to the line trigger input of the grabber and processed by a rate converter belonging to the grabber

EXPOSE

The downweb line rate is identical to the camera line rate are and established by the exposure time settings

The relevant, applicable and default values of LineRateMode depend on the three following prerequisite settings: Imaging, CamConfig, and LineCaptureMode.

Imaging

CamConfig

LineCaptureMode

LineRateMode

AREA

-

Irrelevant

Irrelevant

LINE

LxxxxSP
LxxxxSC

ALL

CAMERA (*)

LINE

LxxxxSP
LxxxxSC

PICK

PERIOD
PULSE
CONVERT (*)

LINE

LxxxxRP

ALL

EXPOSE (*)
PULSE (**)
CONVERT (**)

LINE

LxxxxRP

PICK

PERIOD
PULSE
CONVERT (*)

LINE

LxxxxRC
LxxxxRG
LxxxxRG2

ALL

PERIOD (*)
PULSE
CONVERT

TDI

LxxxxSP
LxxxxRP

ALL

EXPOSE (*)
PULSE (**)
CONVERT (**)

TDI

LxxxxSP
LxxxxRP

ALL

PERIOD
PULSE
CONVERT (*)

(*) Default value.

(**) These values are allowed by MultiCam but are not recommended since the sensitivity of the camera is varying with the line rate.