Specifications

5 - 4
2) Link dedicated instructions can be used to directly read/write from/to the
buffer memory of the intelligent module.
• REMFR instruction: Reads data from the buffer memory of the remote
I/O station intelligent function module.
• REMTO instruction: Writes data to the buffer memory of the remote I/O
station intelligent function module.
QCPU
Remote master station
Remote I/O station
Intelligent function module
REMTO
Network
module
Intelligent function
module
Buffer
memory
REMTO
QCPU Network module
Z.REMTO
3) By refreshing the intelligent function module data into the remote I/O
module's data register D by the automatic refresh setting of the intelligent
function module parameters, the remote master station can read/write
data from/to the data register D with the READ or WRITE instruction.
QCPU
Remote master station
Remote I/O station
Intelligent function module
GX
Configurator
Intelligent function
module parameter
Initial setting
Automatic refresh setting
Remote I/O
module
Intelligent function
module
Data
register D
Buffer
memory
Refresh
QCPU Master module
WRITE
JP . WRITE
W
R
I
T
E
4) The automatic refresh setting of the intelligent function parameters
enables the intelligent function module data to be refreshed into the
remote I/O module's data register D. By refreshing the data register D to
the link register W with the parameter of the remote I/O module, the
remote master station can read/write the intelligent function module data
by the cyclic transmission.
QCPU
Remote master station
Remote I/O station
Intelligent function module
LW
GX
Configurator
Intelligent function
module parameter
Initial setting
Automatic refresh setting
Remote I/O
module
Intelligent function
module
Link
register W
Refresh
QCPU Master module
Link
register W
Link
register LW
Refresh
Data
register D
Buffer
memory
Refresh