Loop Back Test (Communication Using Mc Protocol) - Mitsubishi Electric FX3U-ENET User Manual

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5
COMMUNICATION PROCEDURE

5.4.2 Loop back test (Communication using MC protocol)

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The loop back test can be performed with communication using MC protocol in order
to check the completion status of the initial processing for the target Ethernet module.
The following is an overview of the loop back test for communication using MC
protocol. See Chapter 9 for details.
(1) Loop back test for communication using MC protocol
The loop back test is a function designed to check the following:
• Whether a line has been properly connected to the test target Ethernet module.
• Whether the parameters for the Ethernet module have been correctly set.
• Whether the initial processing for the Ethernet module has been completed
normally.
• Whether the program for the external device is running correctly.
(2) It is necessary to connect lines when performing communication using MC
protocol with the user port on the Ethernet module side.
Perform the open processing for the connection to be used on the Ethernet
module side.
(3) This function can only be used for the Ethernet module of the local station. The
function cannot be used for the Ethernet module of another station via a network
system.
Ethernet
(Loop back test target station)
MELSEC-F
(Loop back test
target station)
5 - 17

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