51
CHAPTER 5 MC PROTOCOL COMMUNICATION
5
5.1 Sending a C
ommand fr
om an Ext
ernal Device to the
CPU Module
CHAPTER 5
MC PROTOCOL COMMUNICATION
The built-in Ethernet port allows MC protocol communication.
5.1
Sending a Command from an External Device to the CPU
Module
From peripherals such as a personal computer or HMI, device data of the CPU module can be read or written using
MC protocol. Monitoring of CPU module operation, data analysis, and production control are available on a personal
computer or HMI by these device data reading and writing.
Besides, the remote password function can prevent unauthorized access from outside of the system. (
From the peripherals such as a personal computer or HMI, only the CPU module connected can communicate using MC
protocol.
An access to a CPU on another station via CC-Link network is not allowed.
To start MC protocol communication, perform the following steps.
For the MC protocol communication, refer to the following manual.
MELSEC Communication Protocol Reference Manual
Remark
Access through routers is also available. When configuring the settings for it, set the subnet mask pattern and default router
IP address. (
Hub
Communication using MC protocol
GOT
CPU module
Start
Setting parameters
Configure PLC parameters by the programming tool.
( )
Connecting cables and external devices
Connect cables and devices required for MC protocol
communication.
End
Writing to the CPU module
Write the configured parameters to the CPU module.
Power it on again or reset it for the parameters
to take effect.
MC protocol communication is available.
Содержание melsec q03ud(E)cpu
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