StrobeMode

Picolo Diligent

Grablink Quickpack ColorScan

Grablink Quickpack CFA

Description

Type	Enumerated
Description	Method for generating strobe pulse to illumination system
"Set" effect	Sets the strobe pulse generation method
"Get" effect	Returns the current strobe pulse generation method

Classification

Class	Channel
Category	Strobe Control
Level	Adjust

Identifiers

String	StrobeMode
C, C++	MC_StrobeMode
.NET	MC.StrobeMode
Numerical	1197

This parameter establishes the method according to which the illumination control pulse is generated.

For area-scan cameras, the StrobeMode parameter relates to the illumination during the frame exposure period.

When StrobeMode is set to NONE, the hardware line dedicated to issuing the strobe pulse is available for general-purpose usage.

Possible values

Name	Identifier	Description
NONE	MC_StrobeMode_NONE	The strobe function is disabled. No strobe line is allocated to the channel.
AUTO	MC_StrobeMode_AUTO	The strobe function is enabled with an automatic timing control feature.
MAN	MC_StrobeMode_MAN	The strobe function is enabled with a manual timing control feature.
OFF	MC_StrobeMode_OFF	The designed StrobeLine is set to the inactive level; no more strobe pulses are issued.

On Domino boards and Grablink Quickpack ColorScan, the default value is set to NONE.

On other Grablink boards, the default value is set automatically to MAN or AUTO by the exposure controller of MultiCam.

The OFF value is available only for Grablink boards. When StrobeMode is set to OFF, no strobe pulses are issued, while when StrobeMode is set to NONE, no StrobeLine is allocated to the channel.

When StrobeMode is set to MAN, StrobeDur and StrobePos are used as specified to define the strobe pulse, using the TrueExp_us duration. However, the application is requested to write the exposure duration into TrueExp_us beforehand.

When StrobeMode is set to AUTO, the camera exposure and read-out principles, as declared by Expose and Readout, are involved. Two cases are to be considered:

The grabber positively controls the camera exposure function, as reflected by Expose=WIDTH for area-scan camera. This is the grabber controlled exposure case. In the grabber controlled exposure case, the parameters StrobeDur and StrobePos are used as specified to define the strobe pulse, using the TrueExp_us duration reported by the grabber.
The exposure function depends on camera settings, as reflected by Expose=PLSTRG for area-scan camera. This is the camera controlled exposure case. In the camera controlled exposure case, the strobe pulse starts upon sending the asynchronous reset pulse to the camera, and ends upon receiving the first vertical validation pulse from the camera that indicates beginning of read-out.

Equivalent features apply to line-scan cameras.