Operating instructions

Code reading systems

Stationary code reading systems

SIMATIC MV440

5/22

Siemens ID 10 · 2014

Optical character recognition

Text recognition is used to detect plain text (Optical Character

Recognition: OCR). This additional functionality is subject to li-

cense and is available for every SIMATIC MV440 by installing the

"Text-Genius license" or the "Text-Genius-Plus License". Text rec-

ognition with the "Text-Genius-Plus license" is able to recognize

many fonts without training immediately after installation. Partic-

ularly suitable fonts are:

•OCR-A

• Semifont M13

• and similar fonts

With training ("Text-Genius-Plus license"), text recognition is able

to recognize just about all fonts even with distortion and other in-

fluences resulting in varied representation. By contrast, this ver-

sion requires training overhead but offers almost unlimited po-

tential in expanding the characters to be recognized. For more

detailed information, refer to the chapter "Text recognition".

Object recognition

Object recognition is used for finding and recognizing trained

patterns in the picture. This functionality can be used in stand-

along mode or in combination with all the other named functions,

and therefore has different application areas. Shape recognition

offers the following functionality:

• Object recognition (classification)

• Position detection (position, orientation, scaling)

• Presence check (object recognition and position check with

setpoint specification)

• Completeness check (multiple presence check with setpoint

specification)

• Text recognition (based on the contour of any character or

symbol. However, shape recognition can also be used in com-

bination with text recognition, for example. In this case, the

text recognition read area can track the current position of an

object or label.

For more detailed information, refer to the section on "Object rec-

ognition", page 5/49.

Note: In demo mode, the full functionality of the devices is avail-

able. Testing of a licensed function is therefore possible at any

time. However, the output result is unusable, because one or

more characters of the result will be randomly replaced by the

character '?'. Binary results are completely suppressed.

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