6 - 27 6 - 27
MELSEC
6 PROCEDURE AND SETTINGS UP TO THE POINT OF OPERATION
(3) Click the Board Set button in the "Board Information" screen of the MNETH
utility to run the self-loopback test, checking the LED status in the "Board
Information" screen to confirm the execution state.
T. PASS blinks during the test.
If T. PASS blinks 20 times and ERROR LED does not blink, the test is completed
normally.
Also, if the test ends abnormally, the ERROR 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.
(4) 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.
Summary of Contents for Q80BD-J71BR11
Page 2: ......
Page 24: ...A 22 A 22 MEMO ...
Page 50: ...4 6 4 6 MELSEC 4 FUNCTION MEMO ...
Page 92: ...6 36 6 36 MELSEC 6 PROCEDURE AND SETTINGS UP TO THE POINT OF OPERATION MEMO ...
Page 132: ...10 2 10 2 MELSEC 10 MELSEC DATA LINK LIBRARY MEMO 10 ...
Page 138: ...11 6 11 6 MELSEC 11 PROGRAMMING MEMO ...
Page 164: ...12 26 12 26 MELSEC 12 APPLICATION FUNCTIONS MEMO ...
Page 166: ...13 2 13 2 MELSEC 13 ERROR CODE MEMO 13 ...
Page 223: ......
