User's Manual

english

BIS L-400 Processor

Basic knowledge for the application

For applications which demand high security against incorrect data the CRC_16 procedure

can be used. Here a check code is written to the data carrier which can be used at any

time and anywhere to test for data integrity.

Advantages of CRC_16: Very high data integrity, even during the non-active phase (data

carrier outside of r/w head capture zone)

Disadvantages of CRC_16: Some user data capacity is lost. The procedure is only

compatible with BIS L-1_ _-05 data carriers which have been converted to read-only

format.

Use of the CRC_16 check can be configured by the user (see

11).

Data integrity with

CRC_16

L-400_835996_0803_E.p65

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Configuration

Before starting your programming, configure the processor unless you intend to use the

factory default settings.

Configuration is done using a PC and the Balluff Configuration Software BIS program, and

the parameters are stored in the processor. The configuration may be overwritten at any

time and can be saved in a file for easy accessibility.