User's Manual

ACG HF Multi ISO RFID Reader V1.0
ACG Identification Technologies GmbH 61
12.4.3 Common commands
12.4.3.1 Test Continuous Read / Check KTT Upload Status
This command tests the state of the continuous read command and the state of the
Prepare for KTT 'ut' command.
The test continuous read command is only valid in ASCII mode.
Command
Command Data
'!' None
Answer
Answer Description
'!' Continuous read mode is active.
00h Keys from KTT successfully uploaded
01h Error during key upload detected, upload aborted
02h No KTT found, other tag was detected
FFh Prepare for KTT is in awareness mode
'F' Continuous read and Prepare for KTT is not active.
no response Key uploading is in progress
12.4.3.2 Continuous Read
The reader device reads and displays serial numbers continuously while one or more
tags remain in the field. This command stops if any character is sent to the reader
module. The reader module returns the character ‘S’ (53h).
The reader supports different tag types at the same time. To increase the reading
performance switch to a single tag mode. If more than one tag of the same type
should be detected at the same time, the Multitag flag must be activated. The
response data length depends on the tag type.
Command
Command Data
'c' None