User's Manual

BL ident System – Planning
2 – 2 D101583 0207 BL ident
Selection criteria for data carriers, read-write head and interface module
The application should be judged using the following criteria in order
to make the correct selection of BL ident system components:
 Mechanical dimensions
 Distance from data carriers to read-write heads when reading
and writing
 Tolerances in the mechanical guidance
 Static and/or dynamic transfer of data
 Data quantities to be transferred
 Speed with dynamic writing and reading (on the fly)
 Metal-free areas with data carriers and read-write heads
 Ambient conditions such as humidity, temperature, chemical
influences, etc.
There are special selection criteria relating to read-write heads:
 Mechanical dimensions
 Required transfer zone
 Size of the data carrier in use
The following criteria should be considered specially for the use of
the interface modules:
 Degree of protection
 Bus type
 Number of channels