Section 2 Functions
Multi-Reader/Writer Operation
There are two modes that you can use for multi-Reader/Writer operation: Field Extension Mode and
High-speed Traveling Mode.
You can link up to eight Reader/Writers to perform communications operations with RF Tags. One of
the Reader/Writers operates as the master and the other Reader/Writers operate as slaves.
The host device just has to control one Reader/Writer, the master, to easily achieve complex control
operations for all of the linked Reader/Writers.
The RF Tag communications commands that you can use during multi-Reader/Writer operation (Field
Extension Mode or High-speed Traveling Mode) are shown in the following table. If you use
unsupported RF Tag communications commands when multi-Reader/Writer operation is enabled, an
execution status error will be indicated in the response.
Field Extension Mode High-speed Traveling Mode
READ DATA Supported Supported
WRITE DATA Supported Not supported
DATA FILL Not supported Not supported
RF TAG OVERWRITE
COUNT CONTROL
Not supported Not supported
READ ID Supported Not supported
COPY Not supported Not supported
LOCK Not supported Not supported
Master Reader/WriterSlave Reader/Writer Slave Reader/Writer
Commands
Responses
PLC
Control
Control
Switching Hub