Communications With I/O Modules - Mitsubishi Electric MELSEC Q Series Reference Manual

6 PROGRAMMING

6.3 Communications with I/O Modules

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This section describes the setting and programming that are required for a CPU to
communicate with I/O modules on a remote I/O station by cyclic transmission.
(1) System configuration example
Remote master station
Power QCPU QJ71
supply BR11
(2) Program conditions
The following processing is performed in the program.
• An input from X0 of the remote I/O station turns ON M1000.
• When M2000 is turned ON, a signal is output to Y0 of the remote I/O station.
(a) Devices used by the user
• Input flag from X0 of remote I/O station ········· M1000
• Output flag to Y10 of remote I/O station ········ M2000
(3) Parameter setting example
(a) Setting for the CPU module of the remote master station
Set network parameters in GX Developer.
• Network type
• Starting I/O No.
• Network No.
• Total stations
• Mode
• Network range assignment:
• Refresh parameters:
(b) Setting for the remote I/O module
Use the default settings. (Refer to Section 5.2.1.)
(4) Program example
Remote I/O station (station No. 1)
QJ72 QX40 QY40P
Power
BR15
supply
: MNET/H (Remote master)
: 0000
H
: 1
: 1
: Online
Input from remote I/O station X0.
Output to remote I/O station Y10.
MELSEC-Q
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