Werner Turck GmbH & Co. KG TNM30 User Manual

Page of 202
BL ident System – Planning
2 – 4
D101583 0207
BL ident
Length of the transfer zone L
Sr
 and width offset 
The length of the transfer zone L
Sr
 (Fig. 1) is dependent on the 
combination of data carrier and read-write head.
The width is particularly important for the tolerance of mechanical 
tracking.
Minimum distance of the data carriers to read-write head, influence of adjacent fields
Adjacent fields are practically always available. Normally the 
adjacent fields should not be used for transfer of data, so there must 
be an minimum distance between data carriers and read-write head. 
But with the TURCK BL ident system a minimum distance must not 
be observed.
Permissible direction of movement and alignment of the data carrier
The data carrier can pass over the read-write head from any 
direction.
The data carriers can have any horizontal alignment. They should 
only be aligned in parallel to the read-write head.
Reading and writing in static operation
In static operation a data exchange is possible up to the range of the 
threshold distance H. The data carrier must be positioned exactly 
above the read-write head.
Reading and writing in dynamic operation (on the fly)
In dynamic operation the data carriers move past the read-write 
head. A data exchange is only possible within the transfer zone.
Note
An illustrative representation of this relationship can be found in the 
BL ident configurator at www.turck.com.