SL900A datasheet(29/90 Pages) AMSCO

29 / 90 page

ams Datasheet: 2014-May-06 [v1-01]

SL900A – 29

C u stom C o mm and Description

Upon receiving a valid command, the tag always transmits a

reply. If the command can not be executed, the tag replies with

the following error message:

Reply Structure (error):

The error codes are defined as:

SOF

Header

Error code

Handle

CRC

EOF

Pilot tone + preamble

1 bit [1]

8 bits

16 bits

Dummy bit [1]

Error Code

Error Name

Error Description

Condition

00000000

Other error

For error s that are not covered by

the other specified error codes

00000011

Memory overrun

The specified memory location

does not exist or the EPC length

field is not supported by the tag

The EBV address is outside the

physical address of the EEPROM

or outside the specified memory

bank.

00000100

Memory locked

The specified memory location is

locked and/or permalocked and

can not be read or written.

The lock bit for the specified

memory bank or password is

set.

00001011

Insufficient power

The tag has insufficient power to

perform the memory write

operation.

This error code can only be set in

fully passive mode when the

supply voltage is to low.

10100000

Incorrect password

The password is incorrect – tag is

not open.

The IDS custom password

protection is active.

10100010

Battery

measurement error

The battery measurement can not

be started.

The tag is fully passive and there

is no battery attached.

10100011

Command not

allowed

Command is not allowed in active

state.

Custom commands that can

modify logging and calibration

parameters are not allowed

when the tag is in active state

(RTC running).

10100110

EEPROM busy error

The memory can not be accessed

as the measurement unit or SPI is

accessing the EEPROM.

This error is reported when the

EEPROM is used by the SPI or

measurement unit.

Custom Command Description

SL900A Datasheet(PDF) 29 Page - ams AG

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