HID Global Corporation 5553 Manuale Utente

 

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

 

1508-USM-00-0-04 

After 2ms Guard Time the answer should be received on the User Port otherwise an error is 
returned. 

Low Start 

bit 

Error Bit 

If set, an error was detected. 

Data Bit 6 

State of the User Port Bit 6 

Data Bit 5 

State of the User Port Bit 5 

Data Bit 4 

State of the User Port Bit 4 

Data Bit 3 

State of the User Port Bit 3 

Data Bit 2 

State of the User Port Bit 2 

Data Bit 1 

State of the User Port Bit 1 

Data Bit 0 

State of the User Port Bit 0 

Parity Bit 

Even Parity Bit 

High Stop 

Bit 

If the Error bit is set or the Parity Bit is not correct, the Write User Port command returns an error 
code. 

This command sets a selected tag into halt state. Only ISO14443 A+B and SR176 tags are 
supported. 

'q' None 

'Q' 

Halt state successfully set. 

'N' 

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

2.3.1.22.1  ISO 14443 Type A 

With ISO14443-3 Type A tags, the Quiet command always answers with 'Q' because the halt 
command does not send any acknowledge.  

In Part 4 a 'Deselect' command will be performed. 

2.3.1.22.2  ISO 14443 Type B 

Some ISO14443 Type B tags do not support this command or do not respond. ‘Quiet’ is an ISO 
14443-4 command, so it will work only if the ‘Deselect’ command is supported by the 
corresponding transponder. 

2.3.1.22.3  SR176 

With SR176 tags the Quiet command always answer with 'Q' because the completion command 
does not send any acknowledge.  

August 2010 

 

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