ICP DAS USA I-7530A-MR-G User Manual page 19

(2) CAN LED :
It is used to show whether the I-7530A-MR is transmitting/receiving
CAN messages. The CAN LED will blink whenever a CAN message is
sending or receiving.
(3) UART LED :
It is used to show whether the I-7530A-MR is transmitting/receiving
COM messages. The UART LED will blink whenever a COM message is
sending or receiving.
Table 2-3: LED indication of the I-7530A-MR
LED Name
Firmware Updating Mode
ALL LEDs
Module Configuration Mode
No Error
CAN Bus Transmission Fail Blink every 100 ms
PWR LED
CAN Bus-Off
Power Failure
Transmission
CAN LED
Bus Idle
Transmission
UART LED
Bus Idle
I-7530A-MR Modbus RTU to CAN Converter User's Manual (Version 1.08, 07/2019) ------------- 19
Figure 2-17: LED position of the I-7530A-MR
I-7530A-MR Status LED Status
All LED always turned on
PWR LED always be turned
on and the other LEDs blink
every 1000 ms
Always turned on
Blink every 500 ms
Off
Blink
Off
Blink
Off