The new stationary 1D/2D code readers are characterized by their high reading reliability and speed as well as by diverse
communication and connection possibilities. A primary use of the compact Simatic MV440 code-reading systems, which feature high protection rating IP67, is for reading data matrix
codes such as direct part marks (DPMs) on objects under difficult ambient conditions in an industrial environment. Thanks to its flexible lighting options, the system can be adapted to
the respective application. Typical uses are product tracing, process control and checking the quality of marking in a variety of applications in the automotive, packaging, pharmaceutical, tobacco, cosmetics, electronics and food&beverages industries.
Several versions of the new MV440 1D/2D code reading system are available: with integrated lighting for working at a distance of up to 80 centimeters, with external lighting and a
working distance of up to three meters; with and without verification; as well as with a resolution of 640x480 or 1024x768 pixels. The MV440 reads up to 80 codes per second, reliably detecting up to fifteen types of code that have previously been stored in the device. As a result of its "multi-code reading" feature, up to 50 codes can be decoded every time an image is recorded.
This is advantageous for bulk-reading of several objects that are stacked one on top of the other, for example.
One very special function is the "auto trigger". It enables the code reader to record images permanently at maximum speed and, at the same time, to evaluate them. The reading device looks
for codes in a sequence of images of any length, without the need for any external triggering signals – from a light barrier for example. This function is particularly suitable for slow-moving
objects and in applications where precise triggering by a light barrier is difficult to implement. With the MV440 verifier versions, the quality of the code can be measured, making it possible to ensure that the quality of codes does not fall below a critical value over the entire production process and that, in spite of possible contamination, the codes are always detected reliably.
The MV440 has integrated interfaces to Profinet IO, Industrial Ethernet and RS232. For connection to the Profibus DP, a communication module is needed, whereby mixed operation with RFID (Radio Frequency Identification) systems connected to the same communication module is also possible.