— 48 —
GO-2401M-PGE / GO-2401C-PGE
Chunk Data Function
The Chunk Data function adds camera configuration information to the image data that is output from
the camera.
Embedding camera configuration information in the image data allows you to use the serial number of
the camera as a search key and find specific image data from among large volumes of image data. In
addition, when images are shot with a single camera in sequence under multiple setting conditions,
you can search for images by their setting conditions.
The following information can be added to image data as chunk data.
Genicam Name
Data type
Description
Chunk Image
IResister
Image data (Image data is also handled as a piece of
chunk data.)
Chunk Offset X
IInteger
Offset X value
Chunk Offset Y
IInteger
Offset Y value
Chunk Width
IInteger
Width value
Chunk Height
IInteger
Height value
Chunk Pixel Format
IEnumeration
Pixel Format value
Chunk Timestamp
IInteger
Counter value for TimeStamp
The Status value for Line is indicated in 32-bit as
follows.
[1]: Line1 - TTL Out 1
[2]: Line2 - Opt Out 1
[3]: Line3 - Opt Out 2
[4]: Line4 - TTL In 1
[5]: Line5 - Opt In 1
[6]: Line6 - Opt In 2
[7]: Line7 - CC1/CXP In
[8]: Line8 - TTL Out 2(Option)
[9]: Line9 - TTL Out 3(Option)
[10]: Line10 - TTL In 2(Option)
[11]: Line11 - LVDS In(Option)
[12]: TimeStampReset
[13]: Nand0_In_1
[14]: Nand0_In_2
[15]: Nand1_In_1
[16]: Nand1_In_2
[17]: Not used
...
Chunk Line Status All
IInteger
[32]: Not used
Chunk Exposure rtime (us)
IFloat
ExposureTime value for when Exposure Mode is set to
Timed
Chunk Gain All
IFloat
GainAll value
Chunk Gain Red
IFloat
GainRed value*
Chunk Gain Blue
IFloat
GainBlue value*
Chunk Black Level All
IFloat
BlackLevelAll value
Chunk Sequencer Set Active
IInteger
Value indicating the Sequencer status
Chunk Frame Trigger Counter
IInteger
Counter value for Frametrigger
Chunk Exposure Start Counter
IInteger
Counter value for ExposureStart
Chunk Frame Start Counter
IInteger
Counter value for FrameStart
Chunk Frame Transfer End Counter
IInteger
Counter value for FrameTransferEnd
Chunk Line Status All On FVAL Start
IInteger
The line status is added when FVAL is established. The
content of the data is identical to [Chunk Timestamp].
Chunk Device Temperature
IFloat
Device Temperature value
Chunk Device Serial Number
IString
DeviceSerialNumber value
Chunk Device User ID
IString
DeviceUserID value
* GO-2401C-PGM only