©Contrinex 2013 - JDCPPT_HF_RWMTAGCommands

HF RWM and TAG Commands

J.-D. Chatelain

HF RWM CommandsHF TAG Commands

Allows to activate or to deactivate the magnetic field of the RWM

Returns the status of the magnetic field of the RWM

Stores two bytes at a specified address of the memory of the RWM

Reads the block (two bytes) at the specified address of the memory

Returns information on the firmware and the type of the RWM

Each RWM stops to scan the transponders in front of it. RWMs come out from this mode as soon as a command is sent on the fieldbus.

Restarts the RWM

Defines the logical address of the RWM.

Returns the address of the RWM in decimal.

Defines the mode (physical or logical) of addressing the RWM.

Returns the addressing mode of the RWM

Activates or deactivates the protection mode of the RWM.

Returns the status of the protection mode of the RWM

HF RWM and TAG Commands

J.-D. Chatelain

HF RWM CommandsHF TAG CommandsExit

Reads the specified number of blocks (and protection code of each block if option flag = 1) starting from the specified address

Writes the specified number of blocks of data starting from the specified address in the transponder(s) concerned.

Protects definitively against writing the selected blocks

Set the concerned transponder in the "Quiet state".

Set the concerned transponder in the “Selected state".

Set the concerned transponder(s) in the "Ready" state.

Writes AFI (Application Family Identifier) code in the transponder(s) concerned.

Protect definitively against writing the AFI code in the concerned transponder(s).

Writes DSFID (Data Storage Format IDentifier) code in the transponder(s) concerned.

Protect definitively against writing the DSFID code in the concerned transponder(s).

Returns the specific characteristics of the transponder

Commands to the transponder to return a random number

Sends the encrypted password to the transponder in order to unlock it.

Modification of the passwordA login (“Get Random Number” followed by “Set Password”) is mandatory before this command

Locks, in an irreversible way, the specified passwordA login (“Get Random Number” followed by “Set Password”) is mandatory before this command

Activates definitively a password of 64 bits made up of the read and write passwordsA login (“Get Random Number” followed by “Set Password”) is mandatory before this command

Protects the specified pages in accordance with the desired protection statusA login (“Get Random Number” followed by “Set Password”) is mandatory before this command

Locks, in an irreversible way, the protection conditions of the page concernedA login (“Get Random Number” followed by “Set Password”) is mandatory before this command

Returns the protection state of the specified blocks

Deactivates, in an irreversible way, the transponder which will not answer any command any moreA login (“Get Random Number” followed by “Set Password”) is mandatory before this command

©Contrinex 2013 - JDCPPT_HF_RWMTAGCommands

HF RWM and TAG Commands

J.-D. Chatelain

End of this chapter