GW-7228 Quick Start v1.2 2011/05
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Troubleshooting
Item Trouble state
Solution
1
CAN Bus Transmission Fail
(Power LED Blink per 100 ms)
Make sure the CAN bus wiring is connected, and
connected to the correct pin.
2
CAN Bus-Off
(Power LED Blink per 500 ms)
Make sure the CAN bus wiring does not short-circuit
3
Can not Claim Address in J1939
Network
(Power LED Blink per 1000 ms)
Please configure another J1939 network address in GW-
7228 Utility.
4
Can not transmit the output J1939
message
1. Make sure the Start/Stop sending J1939 output
message register (42009) is 0x00.
2. Make sure the Update Rate of J1939 output message
table is not zero.
5
How to restore factory default
1. Power on the GW-7228
2. Change the Dip-Switch position of the GW-7228
and to complete the following steps in 5 seconds.
Step1. From “Normal” to “Init” position.
Step2. From “Init” to “Normal” position.
Step3. From “Normal” to “Init” position.
Step4. From “Init” to “Normal” position.
3. When the correct implementation of the above
steps, the J1939/Modbus LEDs of the GW-7228
should be turn on, and that should be turn off
after 500 ms later.
4. Reset the power of the GW-7228, and the GW-
7228 would back to factory defaults.
5. Reconnect the GW-7228 by using the network
setting as 115200 baud with none parity, 1 stop
bit and 1 Net ID.
Technical Support
If you have problems about using the GW-7228, please contact
ICP DAS Product Support.
Email:
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