Mitsubishi Electric SW0DNC-MNETH-B User Manual page 89

Melsecnet/hnetwork interface board
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6 PROCEDURE AND SETTINGS UP TO THE POINT OF OPERATION
6 - 33
(4)
Click the Board Set button in the "Board Information" screen of the MNETH
utility to run the station to station test, checking the LED status in the "Board
Information" screen to confirm the execution state.
If T. PASS blinks 20 times and ERROR LED does not blink, the test is completed
normally.
Also, if the test ends abnormally, the following ERROR LED or L. ERR. LED will
blink as shown below to indicate the relevant error information.
(a)
Optical Loop System
(Q80BD-J71LP21-25, Q81BD-J71LP21-25, Q80BD-J71LP21S-25, Q80BD-
J71LP21G, Q80BD-J71LP21GE)
1)
"TIME" LED lights up
• The forward loop cable is broken.
• The forward loop's transmission side and reception side cables are
not connected.
2)
"DATA" LED lights up
• The reverse loop cable is broken.
• The reverse loop's transmission side and reception side cables are
not connected.
3)
The "CRC", "OVER" and "AB.IF" LEDs light up on the F.LOOP and
R.LOOP sides
• The cable is defective.
4)
"UNDER" LED lights up
• Hardware error.
• The cable was disconnected during the test.
• The cable was broken during the test.
(b)
Coaxial Bus System (Q80BD-J71BR11)
1)
"TIME" LED lights up
• The connector is disconnected.
2)
The "CRC", "OVER" and "AB.IF" LEDs light up on the F.LOOP and
R.LOOP sides
• The connector is defective.
3)
"DATA" and "UNDER" LED lights up
• Hardware error.
• The connector was disconnected during the test.
(5)
Corrective action when the test completes abnormally
Check if the cable failure is not occurred, the connector is not disconnected, and
the wiring is appropriate. If there is any error, correct the connection.
When the cable has been disconnected, replace the cable.
When the hardware error has occurred, replace the board.
For the error occurred in the other station, check the other station.
MELSEC
6 - 33

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