Cognex DM7550 Handheld Reader for Industrial ID User Manual Part 2

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Document ID	626587
Application ID	iWJeKxvkeQkt8xy6RPcwSQ==
Document Description	Users Manual Part 2
Short Term Confidential	No
Permanent Confidential	No
Supercede	No
Document Type	User Manual
Display Format	Adobe Acrobat PDF - pdf
Filesize	20.92kB (261462 bits)
Date Submitted	2006-02-07 00:00:00
Date Available	2006-02-07 00:00:00
Creation Date	2006-01-25 14:29:05
Producing Software	Adobe Acrobat 6.0 Paper Capture
Document Lastmod	2006-01-25 14:44:18
Document Title	Users Manual Part 2
Document Creator	hp LaserJet 3030 TWAIN

Connecting
7 Why does the setup tool fail to connect to my reader?
if you cannot connect, verify the following:
0 Make sure that the reader Is not In sleep mode (squeeze the trigger to wake it up).
0 Make sure that you have scanned the configuration code (USB serial or its-231 Serial) that matches the type of physical
connection.
a Make sure that the Port: popup menu Is set to the port to which your reader is connected.
Click Scan Ports to determine which ports have readers connected to them. Scan Fons automatically selects the first port
upon which a reader is detected.
Note: Clicking the Scan Ports sends a query string on all COM ports The reader must be awake In order to respond to the
query. You can squeeze the trigger to wake up the reader.
0 Make sure that you are not using the keyboard wedge: you must use USB Serial or its-232 Serial to connect the setup tool
to the reader.
0 Make sure that your handset Is linked to the base station connected to your PC. To make sure, scan the Unllnk configuration
code printed in the Quick Reference Guide, unplug both the power and communication cables from the base station, reconnect
the cables, then replace the handset In the base station. Wait until the handset indicates that It Is linked (with an audible
slgnal) before attempting to connect again.
Vou can use a terminal emulation program such as HyperTerminaI to determine whether the reader is sending any data.
v What port do 1 Use for a USB Connection?
If you connect the reader or base station using the USB port, make sure to sari the USB Serial configuration code from the
Quick Reference guided Then click Scan Ports and select the port that Is Identified as connected to the reader.
Nose: Clicking the Scan Ports sends a query string on all COM ports. The reader mUSt be awake in order to respond to the
query. You can squeeze the trigger to wake up the reader.
V How do i select a different baud rate?
When you connect to a reader using the setup tool, the base statlon serial port is automatically set to match the setup tool
(115,200 Baud, 8 data bits, 1 stop bit, and no parity).
ii you need to connect the reader or base statlon to a device with a specific band rate or other serial port settings, scan the
appropriate codes from the Configuration Codes document (available through the Windows Start menu),
The serial port settings that you scan from the Conflgnraflon Codes are stored in non»volatlle memory on the base station.
when connect using the setup tool, the new serIaI port settings are stored in volatile (temporary) memory on the base station. You
can retum to the serial port settings stored in non-volatile memory by power—cycling the base station, or you can resmn the
specific codes.
v How can I associate a handset with a different base station?
ll the base station with which you wish to associate the handset is already associated with another handset, you must break that
link by scanning the Unlink base station code. To link the handset to a new base station, slmply place the new reader in the
base station. This automatically creates the link.
7 How can I reset the USB connection to the base station?
If you have difficulty establlshlng or maintaining a USB connection between a base station and your PC, follow these steps to reset
the USB oohnectlon:
1. Disconnect both the USB cable andthe power cable from the base station.
1 Reconnect both the USB cable and the power cable to the base station.
3. Place the reader In the handset
4. Remove the reader from the handset and scan the USB Serial configuration code.
v Can lconnect a wireless reader using my own Bluetooth transceiver?
No.
Results Display
V l'm having trouble reading codes on my pans. What should I do?
a Make sure that you press and ho/dthe trigger. When you release the trigger before the read ls complete, the reader abandons
its read attempt.
0 Make sure that the reader Is within the working distance specified for the code size and type. as listed in the Quick Reference
guide.
a Make sure that you have the code centered within the reader's image area', make sure the code Iscentered wlthln the green
aiming light before you pull the trigger.
0 Click on Ultralight Settings, then adjust the lighting settings.
. Click on Symbology settings and make sure that the symbology type you are using ls enabled.
v How can 1 speed up image transfer?
Ii the Transfer and display Image checkbox is checked, the setup tool transfers the acquired image each time a read succeeds,
or when you release the trigger if the read fails. If you press the trigger again while the previous Image is transferring, the reader
will dEcard the partially transferred Image and start transferring the new Image.
The Image download speed depends on the amount of Image oompreslon perfumed by the reader. You can control the image
compression value by entering Advanced mode and selecting the Displayed Image Quality sub-node. Lowering the quality
speeds the transfer.
v why cant i see all of my decoded data?
If the decoded data does not fit in the display area in the Seleched Read result area, it is annealed and three dots ('...') are
dvalayed, and the entire string shown In a tool tip when the mouse is placed over the data. You can also copy and paste the
decoded string horn the setup tool to another application to view it.
V I checked Transfer and display Image'. Why don‘t I see an Image?
If you Inherrupt the Image tranfier by clicking the trigger, then no image Is transferred, Also, older images in the Read History
grid may not include Images.
v Can I save an acquired image to a file?
Yes. Select Flle->save Image or click the Save Image button In the tool bar.
Ultralight Settings
V What is the Ultranght?
The Ultralight system provides two independently controllable lighting sources:
o Four individually controllable ouadranx ol shallow-angle off-axis LEDs that provide dark field lighting, which can help image
scribed or etched marks on reflective surfaces.
a A single, highly diffuse on~axis light source that provides bright field lighting, which is appropriate for reading low and high
contrast codes on many types of surfaces.
v which UitraLight settings does the reader use?
You can mnfigure four different lighting setups using the four tabs in this control. When you attempt to read a code, the reader
uses each enabledsetup in rum to tryta read the code. To enable a setup, dick on that sebup's tab and check the Enabled
checkbox. Enabled setups have green rJleck marks next to their names.
When you start a new scan, the reader always starts with the most recently used setup, if multiple setups are enabled.
7 Why isn't the top quadrant of the Ultralight turned on?
In mostcases, operators tend to hold the reader at an angle to the surface being read. By disabling the top lightlng quadrant,
reflections and glare are minimized.
The reader is shipped with default valua for each of the four semps, but only the first setup, General Purpose is enabled The
General Purpose setup enables the West, South, and East law-angle lights only. You can modify this setup to enable all of the olf-
axls light segments.
v What setup should i use for peened marks?
it your peened marks are on a highly reflective surface, use the Mirrored Surface setup. Otherwise, the General Purpose
setup should read most peened codes.
v which setup should i use?
The General Purpose setup will read most codes The additional setups can handle specific, hard-to—read types of marked codes.
0 Curved Sur'ue ls appropriate for marks on convex, reflective and partially reflective objects.
0 Under Marked can help read peened codeswhere the peen marks are small or poorly formed.
0 Mirrored surface is appropriate for highly reflective surfaces where non-diffuse lighting can cause reflections.
7 Is it OK to enable all the setups?
You should enable only the setups that are appropriate for your part and marks. Keep in mind that the reader cycles through all
the enabled setups when you attempt to read a code. The more setups that are enabled, the longer the reader may take to read a
code.
v an i change which setup is enabled without running the setup tool?
Yes. The printed Quick Reference manual Includes four codes that you can scan at any time to enable a single setup (and disable
the other 3). When you sun these code while running the setup tool, the setup tool will not reflect the change automatically, Quit
the setup tool and restart it to see die effect of the code.
7 Can i change the number of decode attempts?
Enter Advanced mode, then use the Decode tries control. You can set the number of decode tries for each setup separately.
7 Can I adjust the image exposure?
Enter Advanced mode then click on Camera Control. You can specify a target Image brightnus and the reader will automatically
adjust its exposure to obtain that image brightness, or you can manually specify the exposure settings.
v Can i change the size or location of the image?
Enter Advanced mode, then dick on Image size (Region of Interest). You can specify the exact region of the image to specify
for acquisition and demdlng.
Symbology Settings
7 Does the reauer auto-dlscrlmlnate different symbology types?
Yes, The reader automatically detects, Identifies, and decodes symbols encoded using any of the symbologlu enabled in the setup
tool.
v Can I speed up the reader by reducing the number of enabled symbologles?
Ves. For best performance, only enable those symbology types that you expect to encounter.
v How do I adjust advanced symbology settings?
Enter Advanced mode, then end on the symbology you wish no nmdify In the tree control
Communication Settings
7 How do i change the reader or base station's serial port settings?
when you scan the its-232 Serial configuration code from the Quick Reference Guide, the reader and base station are
automatically configured to use me same baud late (and other serial port settings) that the setup tool 09354
if you need to connect the reader or base station to a device with a specific baud rate or other serial port settings, scan the
appropriate codes from the Configuration Codes document (available through the Windows sun menu). Note that you will
need to re~scan the its-232 Serial or USB Serial code to connect using the setup tool.
v How do I connect a wireless reader uslng my own Bluetooth transceiver?
This functlonallty Is not supported
Data Formatting
v wnat data is sent if Data Formatting is not enabled?
By default, the reader transmls the entire decoded string followed by a carriage retum/Ilne feed pair.
V How can I send iust the decoded data without a carriage return/line feed pair?
Enable formatting, add Full string to the output string, and make sure that the CR/LF check box ls not checked
v How does data formatting work?
Vou use the Data Formatting pane to construcla customized output string uslng Dre—defined building blocks:
a The output string starts with whatever text you enter in the Leading Text field.
0 Select items from the Ilst In the General tab, then click Add to add them to the output string. To add a specific range of
characters from the decoded data, click Set sub-string range, then enter the range of characters to add (such as 1-
3,5,!,1tl-), then click on Sub-string In the list and dick the Add button.
0 The output string also Includes any text that you add to the Trailing Text field.
a To terminate the entire string with a carriage retum/IIne feed pair, check the CR/LF checkbox,
v Why doesn't data formatting work when I switch to a different type of code?
You specify data formatting separately for Data Matrix codes, QR codes, and 10 codes. The symbology popup menu determines
which symbology's data formatting parameters are displayed.
V Can I specify characters using hexadecimal or octal ASCII codes?
In the Leading Text and Trailing Text fields, you can specify characters as \nnn where lmlrls the octal ASCII code. You can
specify characters in hexadecimal by enterlng \xnn where an is the hexadecimal ASCII code.
7 How can I test my data formatting?
Read a oode. The formatted result is displayed in the status bar. You can also select the Results Display pane, then read a code.
The results display shows the results of the formatting that you have specified.
v Can I perform arbitrary substitution of text?
Enter Advanced mode, then click on Peri~style Regular Expression Data Fonnauing. Click Use regular expression
formatung, then enter a Perl—style regular expression.
Once you have specified a Perl-style expression, you cannot use the basic data formatting pane until you re-enable basic data
formatting.
7 Where can lget more Information about Perl-style regular expressions?
mm.
System Settings
7 What system settings can i change?
The System Settings pane lets you control what the reader does when it reads a code, and what It does when it cannot read a
code.
0 Sound level controls the pitch of the signal tone.
0 Number of tones controls how many times the signal is sounded.
0 LED oolor sets the color displayed by the reader‘s status indicator (mounted on the back of the reader).
v How do I update reader firmware?
Select system->Update Flrlnware..., then select the firmware file
Note: Firmware files are supplied as wmprmd archives. The firmware must be uploaded in its compressed form; do not
attempt to uncompress a firmware file before uploading it.
v How can I reset my reader?
Seen the Soft Reset command printed on the back of the Quick Reference Guide to perform a soft rset. The readers nonvolatile
memory is not cleared, but the reader is shut down and restarted.
Scan the Hard Reset command to return the reader to its factory-default state.
v How can i reset the USB connection to the base station?
if you have difficulty stabllshing or maintaining a USB connection between a base station and your PC, follow these steps to raet
the USB connection:
1. Disconnect both the USB cable andthe power cable from the base station.
2. Reconnect both the USB able and the power cable to the base station.
3. Place the reader In the handset.
4. Remove the reader from the handset and sun the USB Serial configuration code.
7 How do 1 enter advanced mode?
Select View->Advanced. Advanced mode lets you configure additional reader settings To return to Basic mode, select View-
>Baslc.
v Can i replace the battery in my reader?
Yes. The battery Is located Inside the reader handle. Only replace the battery with the correct type. For Information on
obtaining a replacement battery and on disposing of a used battery, contact product support using the Information listed In the
Quick Reference guide.

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