Omron V440-F User Manual page 487

Appendices
R-1 Q & A
Question
PPE stands for Pixel Per Element.
For 2D code, it is one cell size on a captured image.
What is PPE? For 1D code (barcode), it is the minimum bar width on a captured image.
e.g. When [PPE=4.0] is displayed on WebLink at DataMatrix read, the DataMatrix cell size is four pixels on the captured
image.
In WebLink, compressed images are displayed.
When magnifying an Since such images have lower resolution than measured images, they might be blurred when magnifying them.
image on WebLink, it Important: The image will not blur if magnified at 1-to-1.
blurs. When magnifying a measured image with an actual resolution, use saved images.
For the image saving method, refer to Q&A: How to save read images.
• For Internet Exlorer, check the following settings.
Uncheck the upper right Tool icon - Compatibility View settings - Display Intranet sites in Compatibility View. Or use
Google Chrome.
• Turn off the VPN function.
Turn off the VPN function. When the VPN function is turned on, local LAN connections other than the VPN are disabled all.
How to react when being
unable to WebLink. • Check the IP address using DDU.
DDU (Discovery Device Utility) is a tool to search a reader whose IP address is lost. When the search was succeeded, its
IP address also can be changed.
Download the DDU from Omron Microscan Web site.
• Initialize V440-F if the above measures does not help.
Related Q&A: How to initialize the settings?
The merits of WebLink are that does not require the installation and is easily operated to set with a Web browser.
Use WebLink basically. Most of the functions are settable except for some functions.
The following shows a list of comparison.
WebLink
About WebLink
Merits:
• No installation software (Web browser)
• Japanese supported
• Visually easy to understand UI
Enable Advanced - I/O - Output Object Info - Output Coordinates. Following the captured string, every four vertexes of
Can the position
the code are output.
information of a code be
• Output example: When a code of 123456 was captured
output?
123456,(0032,0040)(0287,0056)(0287,0279)(0048,0271)
It is possible to adjust with a serial command <@CAL> executing the calibration.
Which parameter should be adjusted at Calibration, it is selectable with the following parameter on WebLink.
Advanced - I/O tab - Calibration Options
Can serial commands When executing the <@CAL> command, V440-F outputs numeric values indicating trial results in some rows and then
calibrate brightness or Calibration PASSED. When failed, Calibration FAILED is output.
focus? Example of a response when <@CAL> was succeeded.:
Prog| Exposure Gain Brightness
2 | 5764 33 24
100 | 6011 33 37
Calibration PASSED.
The following describes a serial command to input a trigger in default.
• Serial Trigger command
ASCII character notation< >
Hex notation3C 20 3E
How is a trigger inputted Although space is a default in the center (Hex notation: 20), it can be changed to any ASCII character from the menu
in serial below.
communications? WebLink - Gear icon - Advanced - Read Cycle - Serial Trigger - Serial Trigger Character (Delimited)
Additionally, from the menu below, any ASCII character can be set up to two characters for Start Trigger Character/Stop
Trigger Character that do not need < >.
WebLink - Gear icon - Advanced - Read Cycle - Serial Trigger - Start Trigger Character (Non-Delimited)/Stop Trigger
Character (Non-Delimted)
When Teaching (Hat icon on WebLink) was executed, judgment of code type and the detection algorithm optimization are
What kind of effect is in performed.
Teaching? When reading codes with the same conditions, the reading will be more stable just to execute Teaching.
However, Teaching is not a function that always needs be executed.
R-2
Answer
V440-F C-Mount Code Reader User Manual