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6. HOW TO COMMUNICATE WITH ID TAGS
6.6.2. Attention and limitation using the RFID module at MELSECNET/H remote I/O station
(1) Attention in the sequence programming
The interlock circuit which operates the RFID module only when a MELSECNET/H
remote I/O network system works normally is necessary as show in section 6.6.1 (8)
(b).
(2) The limitation on executing reading or writing of the buffer memory of the RFID
module
GX Configurator for RFID modules is not prepared for. Therefore, the update of
periodical data by the automatic refreshment setting of the intelligent functional unit
parameter is not possible.
When read/write of the buffer memory of the RFID module, please use the buffer
memory read/write command (an REMFR command / REMTO command) of the
intelligent function module of remote I/O station that is a command for exclusive use
of the link.
(3) The limitation of the data storage device
Can not use the local device of the CPU module for a device used in the buffer
memory read/write (an REMFR command / REMTO command) of the intelligent
function module of remote I/O station those are a command for exclusive use of the
link.
In addition, please do not choose the parameter to "Use a file name same as a
program name" for when use a file register device.
(4) The limitation of the data size that read/write is possible at the same time
The read/write size when execute the read/write (an REMFR command and an
REMTO command) of the buffer memory of the intelligent function module of
remote I/O station that is a command for exclusive use of the link is 960 words.
(The read/write size when attached an RFID module to a base same as a CPU
module is 1024 words.)
Besides the above, some instructions and restrictions are applied to use a
MELSECNET/H remote I/O network system. Please refer to the following manual
published from Mitsubishi Electric Corporation about these.
Manual Name
Document Number
Q Corresponding MELSECNET/H Network System Reference Manual (Remote I/O Network)
SH-080124
