32
12 Module description
The following functions are available:
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Detection if an RFID tag is in front of the read/write head .
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Control of read/write head to switch on or off the RFID antenna field .
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Read of the Unique Identifier number (UID) of the RFID tag .
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Read of the User data of the RFID tag .
Reading started via control bit “RD” . Maximum read length with one command is 16 bytes . (1)
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Write to the User data of the RFID tag .
Writing started via control bit “WR” . Maximum write length with one command is 16 bytes . (1)
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Write verified to the User data of the RFID tag .
Writing verified started via control bit “WR” and "RD" . Maximum write length with one command is
16 bytes . (1)
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Simple diagnostics of the IO-x channels of the evaluation unit .
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Simple notification of evaluation unit diagnostics .
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Remote restart of the evaluation unit
(1) If more data than 16 bytes had to be read or written, the user must repeat the command with changed
offset parameter .
Module name
Description
Remark
Inactive ( 20 Byte In/Out )
Cyclic transmission
High impedance
Input ( 20 Byte In/Out )
Cyclic transmission
IEC61131 Input
Output ( 20 Byte In/Out )
Cyclic transmission
IEC61131 Output
RWH_RW (20 Byte In/Out)
Cyclic command channel
Command channel
The PLC input data image and output data image has a size of 4 x 20 bytes = 80 bytes .
