Chapter 9 Mc Protocol Communications; Applications - Mitsubishi Melsec-L Series User Manual

CHAPTER 9
Using MC protocol communications, connected devices that can send and receive data in accordance with the MC
protocol can access a CPU module. Because an E71 processes and sends/receives data based on commands from
connected devices, no programs for data communications are required on the programmable controller side.
For MC protocol communications, refer to the following.
MELSEC-Q/L MELSEC Communication Protocol Reference Manual
9.1

Applications

Applications of MC protocol communications are as follows.
(1) Data read/write
Data can be read/written from/to a CPU module device and intelligent function module buffer memory. This
allows a connected device to monitor the CPU module operation, perform data analysis, and manage production
control.
(2) File read/ write
Files such as a program and parameter stored in a CPU module can be read/written. This allows a connected
device to manage CPU module files and switch execution programs.
(3) Remote control of a CPU module
The remote operation allows a connected device to remotely operate a CPU module.
(4) Turning off the COM.ERR. LED
The COM.ERR. LED on an E71 can be turned off from a connected device.
(5) Remote password lock/unlock
A remote password can be locked/unlocked from a connected device.
(6) Access to a programmable controller in other stations over other networks
In a system containing CC-Link IE Controller Network, CC-Link IE Field Network, MELSECNET/H,
MELSECNET/10, and Ethernet, access to a programmable controller in other stations can be performed over
each network from a connected device.
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MC PROTOCOL COMMUNICATIONS