Basler A202k Guide de configuration

USER’S MANUAL SUPPLEMENT

Document Number: DA00073602

Release Date: 4 April 2006

For customers in the U.S.A.

This equipment has been tested and found to comply with the limits for a Class A digital device,

pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection

against harmful interference when the equipment is operated in a commercial environment. This

equipment generates, uses, and can radiate radio frequency energy and, if not installed and used

in accordance with the instruction manual, may cause harmful interference to radio communica-

tions. Operation of this equipment in a residential area is likely to cause harmful interference in

which case the user will be required to correct the interference at his own expense.

You are cautioned that any changes or modifications not expressly approved in this manual could

void your authority to operate this equipment.

The shielded interface cable recommended in this manual must be used with this equipment in

order to comply with the limits for a computing device pursuant to Subpart J of Part 15 of FCC

Rules.

For customers in Canada

This apparatus complies with the Class A limits for radio noise emissions set out in Radio Inter-

ference Regulations.

Pour utilisateurs au Canada

Cet appareil est conforme aux normes Classe A pour bruits radioélectriques, spécifiées dans le

Règlement sur le brouillage radioélectrique.

Life Support Applications

These products are not designed for use in life support appliances, devices, or systems where

malfunction of these products can reasonably be expected to result in personal injury. Basler cus-

tomers using or selling these products for use in such applications do so at their own risk and

agree to fully indemnify Basler for any damages resulting from such improper use or sale.

Warranty Note

Do not open the housing of the camera. The warranty becomes void if the housing is opened.

All material in this publication is subject to change without notice and is copyright Basler

Vision Technologies.

Contacting Basler Support Worldwide

Europe:

Basler AG

Ander Strusbek 60 - 62

22926 Ahrensburg

Germany

Tel.: +49-4102-463-500

Fax.: +49-4102-463-599

vc.support.europe@baslerweb.com

Americas:

Basler, Inc.

740 Springdale Drive, Suite 100

Exton, PA 19341

U.S.A.

Tel.: +1-877-934-8472

Fax.: +1-877-934-7608

vc.support.usa@baslerweb.com

Asia:

Basler Asia Pte. Ltd

8 Boon Lay Way

# 03 - 03 Tradehub 21

Singapore 609964

Tel.: +65-6425-0472

Fax.: +65-6425-0473

vc.support.asia@baslerweb.com

www.basler-vc.com

Contents

Basler A202k High Gain I

DRAFT

Table of Contents

1 Purpose of This Document . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1

2 Gain Changes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2

2.1 Larger Gain Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2

2.2 Left Side Gain and Right Side Gain Binary Commands . . . . . . . . . . . . . . . . . . . . . . .3

3 Digital Shift Changes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4

3.1 Additional Digital Shift Setting Available . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4

3.1.1 Digital Shift With 10 Bit Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4

3.1.2 Digital Shift With 8 Bit Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6

3.1.3 Precautions When Using Digital Shift . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8

3.2 Digital Shift Binary Command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9

4 Pixel Clock, Timing Chart, and Frame Rate Formula Changes . . . . . . .10

4.1 Calculating the Maximum Allowed Frame Rate Based on the AOI Size . . . . . . . . .13

4.2 Calculating the Maximum Allowed Frame Rate Based on Binning . . . . . . . . . . . . .13

5 Timer 1 and Timer 2 Binary Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14

5.1 Timer 1 Binary Command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14

5.2 Timer 2 Binary Command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15

6 Exposure Control Recommendation Changes . . . . . . . . . . . . . . . . . . . . . . .16

Revision History . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . i

Feedback . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ii

Contents

II Basler A202k High Gain

DRAFT

Supplement

Basler A202k High Gain 1

DRAFT

1 Purpose of This Document

The Basler A202k High Gain camera is a variant of the standard Basler A202k camera. The

purpose of this document is to describe the unique aspects of A202k High Gain cameras.

The unique aspects of A202k High Gain camera are listed below.

• As the name implies, A202k High Gain cameras have a higher available gain range than

standard A202k cameras. The gain range and the gain related binary commands for high

gain cameras are detailed in Section 3.

• A202k High Gain cameras have more digital shift settings than standard A202k cameras.

The digital shift settings and digital shift binary commands for high gain cameras are detailed

in Section 4.

• A202k High Gain cameras use a 36 MHz pixel clock rather than the 40 MHz pixel clock used

on standard A202k cameras. This change means that:

- The timing charts for the A202k High Gain are different from standard cameras.

- The camera’s maximum frame rate at full resolution is 43 frames per second rather than 48

frames per second as on standard cameras.

- The formulas for calculating the maximum allowed frame rate are different from standard

cameras.

- The meaning of the binary commands used to set Timer 1 and Timer 2 have changed.

- The recommendations for controlling exposure in ExSync programmable mode and in Free-

run programmable mode have changed.

Section 5shows the timing charts and the frame rate formulas for high gain cameras.

Section 6explains the change to the meaning of the Timer 1 and Timer 2 binary commands.

Section 7lists the exposure control recommendations for high gain cameras.

In all other respects, the operation and features of A202k High Gain cameras are identical to the

operation and features on standard A202k cameras. For a full description of an A202k High Gain

camera and its capabilities, this document must be used together with the A202k User’s Manual

(document number DA04400x).

Supplement

2Basler A202k High Gain

DRAFT

2 Document Applicability

This user’s manual supplement applies to A202k High Gain cameras with a camera version ID

number of 02.

High gain cameras with a lower or a higher ID number may have fewer features or have more

features than described in this supplement. Features on cameras with a lower or a higher ID

number may not operate exactly as described in this supplement.

An easy way to see the camera version ID number for an A202k High Gain camera is by using the

CCT+. To see the camera version ID number:

1. Double click the CCT+ icon on your desktop or click Start ⇒All Programs ⇒Basler Vision

Technologies ⇒CCT+ ⇒CCT+. The CCT+ window will open and the software will connect

to your camera.

2. Scroll down until you find the

“Camera Information” group

heading. If there is a plus sign

beside the Camera

Information group heading,

click on the plus sign to show

the list of parameters in the

group.

3. Find the parameter called

“Camera Version.” As shown

in Figure 1, the last two

numbers of this parameter are

the camera version ID

number.

This is the

camera

version

ID Number.

Figure 1: CCT+ Window

Supplement

Basler A202k High Gain 3

DRAFT

3 Gain Changes

3.1 Larger Gain Range

The major difference between the standard camera and the high gain version is the gain range.

On standard cameras, the gain can be programmed on a decimal scale that ranges from 288 to

569 (0x0120 to 0x0239). At the highest gain setting on a standard camera, the gain will be 12 dB.

On the high gain version, gain can be programmed on a decimal scale that ranges from 288 to

1023 (0x0120 to 0x03FF). The settings result in the following amplifications:

If you know the decimal number (DN) setting for the gain on a high gain camera, the equivalent

decibel value can be calculated using the following equations:

Decimal Number (DN) Hexadecimal dB Factor

288 0x0120 0 x1

1023 0x03FF 28.06 x25

Table 1: Gain Settings on a High Gain Camera

LIn normal operation, a gain setting lower than 288 (0x0120) should not be used.

When the gain setting is lower than 288, the sensor output signal that is mapped to

the input of the ADCs will not be linear.

Gain in dB 20 log10 658 DN+

658 DN–

----------------------------

⎝⎠

⎛⎞

8.15–=

When DN setting = 288 ... 511

Gain in dB .0354 (DN) 8.15–=When DN setting = 512 ... 1023

Supplement

4Basler A202k High Gain

DRAFT

3.2 Left Side Gain and Right Side Gain Binary

Commands

On high gain cameras, the data range for the left side gain and the right side gain binary

commands is larger than on standard cameras. The larger range is shown in the tables below.

Left Side Gain

Right Side Gain

Purpose: To set the gain for the left side of the CCD array or to read the current left side gain setting.

Type: This is a read or write command.

Read Command: Cmd-ID R/W-Flag Data Length Data

0x80 1 2 -

Response: Cmd-ID R/W-Flag Data Length Data

0x80 0 2 2 Bytes

Write Command: Cmd-ID R/W-Flag Data Length Data

0x80 0 2 2 Bytes

Response: None

Data Format: Byte 1 Low byte of left side gain setting

Byte 2 High byte of left side gain setting

Data Range: Left side gain settings can range from 288 to 1023 (0x0120 to 0x03FF).

Purpose: To set the gain for the right side of the CCD array or to read the current right side gain

setting.

Type: This is a read or write command.

Read Command: Cmd-ID R/W-Flag Data Length Data

0x82 1 2 -

Response: Cmd-ID R/W-Flag Data Length Data

0x82 0 2 2 Bytes

Write Command: Cmd-ID R/W-Flag Data Length Data

0x82 0 2 2 Bytes

Response: None

Data Format: Byte 1 Low byte of right side gain setting

Byte 2 High byte of right side gain setting

Data Range: Right side gain settings can range from 288 to 1023 (0x0120 to 0x03FF).

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