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Master
The device configured as master in a communications system passes on data to the device
configured as slave. The master is always the active partner.
MOBY-ASM
The term MOBY-ASM covers all communication modules (ASM) that use the RFID industrial
standard MOBY, for example SIMATIC RF180C or ASM 456.
N type
The load switches from 0 V to 24 V DC and the input is switched to 24 V DC.
OCR
OCR ("Ooptical Ccharacter Rrecognition") is a term from the IT sector and refers to
automatic text recognition in images.
This add-on feature enables the reader to detect and read human-readable plain text in an
image in addition to machine-readable codes.
OCV
With the OCV ("Optical Character Verification"), the reader can compare the read plain text
to target specifications and detect deviations in the reading result. The OCV function is very
different from a printing inspection, which involves comparison of the printed image with a
template. This task is not covered by the OCV function.
P type
The load switches from 24 V to 0 V DC and the input is switched to 0 V.
Persistence
Persistence is the ability to store data structures (or objects) in non-volatile memory such as
file systems or databases. In other words, data is stored and retained on the reader if there
is a power outage.
PIB
Proxy Ident Function Block from PROFIBUS INTERNATIONAL, order no. 3.142.
Pick-and-place
Loading and removal of parts.
SIMATIC MV420 / SIMATIC MV440
Operating Instructions, 04/2013, A5E02371045-06
Glossary
411
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