Setting
RFID channels — overview of commands
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8.8.7 Command: Continuous Mode
NOTE
In HF applications, Continuous mode is only available for single-tag applications.
Automatic tag detection cannot be used in Continuous Mode. A specific tag type
must be selected in the parameters.
In Continuous Mode, a user-defined command is sent to the read/write device and saved in the
read/write device. The command is executed continuously if a tag enters the detection field of
the read/write device (self-triggered). In HF bus mode, all activated bus-capable read/write
heads continuously execute the command simultaneously. With HF, the following commands
can be set in the parameters: Write, Read, Inventory, Tag info. With UHF, the Write, Read and
Inventory commands can be executed in Continuous Mode. For UHF applications, the para-
meters for Continuous Mode must be set via the DTM directly in the UHF reader.
The command is executed continuously until the user stops Continuous Mode. Continuous
Mode can be stopped with a reset command.
NOTE
The reset command resets all read data. After Continuous Mode is restarted, all data
from the Continuous Mode already running is deleted.
Read/write devices in Continuous Mode send all command-related data to the interface. The
data is stored in the FIFO memory of the interface and can be queried by the controller via the
Read buffer (Cont. mode) command.
Commands in Continuous Mode are triggered if the read/write device detects a tag. If there is a
tag in the detection range of the read/write device when Continuous Mode is started, the com-
mand sent in Continuous Mode will not be executed until the next tag is present.
In Continuous Mode, the Tag in detection range signal is updated in the following cases:
n In Continuous Mode (HF), if 3 is set as the start address
n In HF Continuous bus mode, if 0 or 1 is set as the start address
The Tag in detection range signal is not updated in Continuous Mode for UHF readers.
NOTE
The HF parameters: Address in Continuous Mode (ACM) and HF: Length in Continu-
ous Mode (LCM) cannot be changed while Continuous Mode is running.
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