12
(1) Indicator LEDs
Figure 4.2 Indicator LEDs
Table 4.2 Indicator LEDs
LED
State
Description
1)
PW
ON
Power is ON
OFF
Power is OFF
RUN
ON
Operating normally
OFF
• 24V DC power failure or watchdog timer error occurred
• In MELSOFT connection mode, any of the RS-232
transmission setting switches, SW1 to SW8 is ON
• Incorrect switch setting
L RUN
ON
Communicating normally
OFF
• Communication failure or timeout error occurred
• Incorrect switch setting
SD
ON
Data being sent by data link
Flashing
Data being sent by data link
OFF
Data not sent by data link
RD
ON
Data being received by data link
Flashing
Data being received by data link
OFF
Data not received by data link
L ERR.
ON
Invalid transmission speed or station No. setting
Flashing
regularly
Transmission speed or station No. setting changed after
power-ON
Flashing
irregularly
• Terminating resistor not connected
• AJ65BT-R2N or CC-Link dedicated cable affected by
noise
OFF
Communicating normally
1)
2)
3)
Summary of Contents for AJ65BT-R2N
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