HID Global Corporation 5553 Manuale Utente

1508-USM-00-0-04

HF Multi ISO RFID Reader User Manual, Firmware V1.4

2.3.1.23 Resend Last Answer

This command resends the last answer from the internal serial buffer of the reader.

Command

Data

'ra'

Resend last answer

2.3.1.24 Read block

This command reads a data block on a card. The size of the returned data depends on the tag
used. The block address range depends on the tag as well.

Command

Data

'r'

Block address (1 byte), valid range 00h – 40h

'rb'

Block address (1 byte)

Answer

Description

Data

data block (depends on tag type)

'F'

Error: read failure [bad data or address range error]

'N'

Error: No tag in field [addressed tag not present or not responding]

'O'

Error: Operation mode failure

'R'

Error: Out of range

Example

Command

Description

rb05

Reads block 05.

2.3.1.24.1 Operation mode failure 'O'

The presented tag is not ISO14443 type A, SR 176, ICode, ICode-UID and ISO 15693 compliant.

For ISO 14443 type A only MIFARE tags are supported.

This error also appears if the reader is not correctly configured.

2.3.1.24.2 Out of range failure 'R'

The block address of the 'r' command is higher than 40h.

The block address of the 'r' command conflicts with other commands, therefore the block address
has to be limited to 40h.

Use the 'rb' command instead.

Page 62 of 144

August 2010