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MELSEC
6 PROCEDURE AND SETTINGS UP TO THE POINT OF OPERATION
(1) Indicator LED
Display the operating status of the MELSECNET/H board status.
RUN
L
ERR.
SD
RD
(a) When the RUN LED is ON or OFF
The same LED display as a network module.
Name Status
Description
ON
Operating normally
RUN
OFF
One of the following error has occurred.
• Board WDT error (Hardware failure)
• Board resetting (The driver is not started.)
ON
Communication error
One of the following error has occurred. Confirm the error with LED
status displayed on "Board information" screen of MELSECNET/H utility.
CRC: An error has occurred by a fault such as a cable fault and noise.
OVER: This error occurs when the next data is received before the last
received data is loaded into the module, and the previous data is
lost. It is caused by hardware failure in the receive area of the
network module.
AB.IF: This error occurs when the number of receive bit data indicating
"1" in the frame is more than or equal to the specified number of
data, or when the receive data is shorter than the specified data
length.
TIME: This error occurs when a baton pass was not handed to the host
station within the monitoring time.
DATA: This error occurs when abnormal code data is received.
UNDER: This error occurs when the internal processing of the send data
was not executed at a fixed interval.
LOOP: This error occurs when the forward loop line or reverse loop line
is faulty and the power to the adjacent station, which sends data
to the host station, is turned off or the hardware of the sending
station part in the loop is faulty.
L.ERR.
OFF
Operating normally
ON
Sending data
SD
OFF
Not sending data
ON
Receiving data
RD
OFF
Not receiving data
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: ......
