Feig Electronic OBID i-scan ID ISC PRHD102 Manual page 19

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OBID i-scan
4. Configuration Parameters (CFG)
The configuration memory of the Reader is organized in configuration blocks of 16 byte each.
These are divided into 14 byte configuration parameters and a 2 byte CRC16 checksum. Each of
these configuration blocks takes a number (CFG 0...CFG n).
Structure of a configuration blocks in Reader configuration memory and Reader EEPROM (CFG):
Byte
Contents
The parameters are stored in two different configuration memory locations:
•
Reader RAM
•
Backup EEPROM (used for storing parameter over power down)
Multiple configuration memory locations can be addressed by the value of the parameter CFG-
ADR used in chapter
CFG-ADR:
CFGn: memory-address of the required configuration block
LOC: specifies the location of the configuration block (RAM / EEPROM)
MODE: specifies one or all configuration blocks
Bit:
Function
The EEPROM configuration blocks are protected by a 16 bit CRC-checksum. The examination of
these checksums is executed after each reset of the Reader. If an checksum is found, the Reader
goes into an error status "EE-Init-Mode" and sets the configuration block which is faulty to the de-
fault-values.
While the EE-Init-Mode is active, the LED blinks alternately red and green and the Reader answers
external commands with the status "0x10 EEPROM Failure". The "EE-Init-Mode" can be termi-
nated now by a new reset (cold start or 6.3. [0x63] RF Controller Reset command). If after this
the checksums of all data records are correct, the Reader shifts to the configured operation mode.
Notes:
•
Malfunctions may occur if parameters are configured without their described range or if
unspecified parameters have been changed!
•
A firmware update resets the EEPROM to default settings and the Reader goes into the
error status "EE-Init-mode".
FEIG ELECTRONIC GmbH
0 1 2 3 4
5. Protocols for Reader Configuration
7 6 5
LOC MODE
Manual
5 6 7 8 9 10
PARAMETER
4 3
CFGn: address of configuration block
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CRC16
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