Sony DFW-X700 When exposure time is over 1 frame, Operations When Frame Rate is Reduced

Page 16

DFW-SX900

DFW-X700

FUNCTIONS

When the output frame rate is reduced (3.75 fps of DFW-SX900, 7.5 fps of DFW-X700), images will be read out from the CCD for every VD. However, as every other image is used, the images read out during the isochronous output period will not be used.

VD

Inside Camera

SUB

SG

Exposure Time

B

Isochronous	A
	C

Front Panel LED

	Green
Orange	Orange

Green

Operations When Frame Rate is Reduced

Camera		A [ms]	B [ms]	C [ms]

DFW-SX900	(3.75 fps)	Approx. 8	Approx. 240	Approx. 26

DFW-X700	(7.5 fps)	Approx. 2.4	Approx. 128	Approx. 5

Time until Data is Read Out and Output Period of Data

When exposure time is over 1 frame

When exposure time over 1 frame is specified (extended exposing mode), the A period until images are output from the VDs and B period outputting images are the same as the above case. However, as no images are output during the exposure time, the actual frame rate will drop.

VD

Inside Camera SUB

SG

Isochronous

						B
Exposure Time

A

Front Panel LED

Orange

Green

Orange

Green

Operations in Extended Exposing Mode (In the Case of 2 Frames)

Camera		A [ms]	B [ms]

DFW-SX900	(7.5 fps)	Approx. 8	Approx. 120

DFW-X700	(15 fps)	Approx. 2.4	Approx. 64

Time until Data is Read Out and Output Period of Data

14

Image 16

Contents Technical Manual Table of Contents Main Features OutlineSystem Components Specifications Connection Pin assignment of camera connector Pin assignment of Trig in connector femaleNames and Functions of Parts Dimensions CCD Pixel Location Top ViewSpectral Characteristics Typical Values Functions Camera FunctionsGain ShutterAuto Exposure BrightnessColor Temperature GammaSharpness White BalanceSaturation Isochronous Start/StopOne Shot TriggerOperations in Normal Mode When exposure time is 1 frame or shorterOperations in Normal Mode Time until Data is Read Out and Output Period of DataWhen exposure time is over 1 frame Operations When Frame Rate is ReducedInside Camera SUB Isochronous Front Panel LED External Trigger Shutter Inputting trigger and pulse conditionsExternal Trigger Shutter Operations Example of Acceptable Trigger Interval Camera Exposure TimePartial Scan Mode Cutting sizeCSR F0F00000h Camera Initialize Register Write Only CSR F0F00600h Current Frame RateCSR F0F00604h Current Video Mode CSR F0F00608h Current Video FormatCSR F0F0060Ch CSR F0F00614h Isochronous Transmission Start/StopCSR F0F00618h Memory Save CSR F0F0061Ch One ShotCSR F0F00620h Memory Save Channel CSR F0F00624h Current Memory ChannelCSR F0F00804h Auto Exposure CSR F0F00800h BrightnessCSR F0F00808h Sharpness CSR F0F0080Ch White Balance One-Push Auto White BalanceCSR F0F00814h Saturation CSR F0F00810h HueCSR F0F00818h Gamma Auto exposure CCD Iris CSR F0F0081Ch ShutterShutter OFF CSR F0F00820h Gain CSR F0F00830h TriggerCSR F0F0088Ch Optical Filter Auto Gain ControlFor Format7 CSR F1000108h Image PositionWhen DFW-SX900 When DFW-X700CSR F100000Ch Image Size Minimum Unit for DFW-SX900 Minimum Unit for DFW-X700CSR F1000110h Color Coding ID CSR F1000144h Byte per PacketGeneral precautions for partial scan function Command Sending Procedure Until Images are Displayed Acquiring the camera control register base addressAcquiring the format/mode/frame rate Check available formatsCheck available video modes Check available frame rates Example Format0 Mode3Video transmission start command To set the trigger modeProcedure for Format7 Aquire the available mode for Format7Acquire the CSR offset address of Mode0 Acquire the MaxSize/UnitSize/ColorCodingIDVideo transmission start command Format7 Specify the packet sizeCommand Setting and Operation Timing Trigger Mode command and actual operation timing One Shot CMD and actual operation timingCamera List of Camera Functions SupplementsIEEE1394 Cable Recommended Specifications for Personal Computer PC FeaturesHost Adapter Card DFWA-400 Specifications Installing the Host Adapter Card Precautions Setup of the DriverPrecautions on software provided Setting up the driver Setting up the demonstration softwareFor Windows For Windows NT4.0Page DFW-SX900