User guide
P/N: 021-00154, Rev. A.6 - updated for V4.7 Tools     Page | 48  
LED STATE  MEANING 
Off  There is no power applied to the module. 
On GREEN  The module is operating in a normal condition. 
Flashing GREEN  Device is in standby state. May need servicing. 
On RED  Module has an unrecoverable fault. 
Flashing RED Recoverable fault. 
Flashing RED/Green  This DVC7 was loaded with an application that was 
compiled for a DCV10 or DVC5. The DVC7 is not 
operational in this condition. Recompile the application 
as a DVC7 type and load that application. 
LED1 and LED2: Network Status 
LED STATE  MEANING 
Off  There is no J1939 device (or other DVCs) in the 
project. 
On GREEN  J1939/CAN Bus communication has been established. 
Flashing GREEN  J1939/CAN Bus device in project but communication 
has not been established. Flash 2 times in 2 seconds. 
On RED  The device has detected an error that has rendered it 
incapable of communicating on the network. 
Flashing RED  The J1939 communication is in a timed-out state.  
Flash 2 times in 2 seconds. 
Normal Operation 
Length: Until the next power cycle 
Summary: 
LED1 shows Network status 
LED2 shows max PWM 
LED3 error, System Enable or module ready 
LED4 is the error code if any set by the blinkcode or open/short detection 
LED1: Network Status (Same as Power On) 
LED STATE  MEANING 
Off  There is no J1939 device (or other DVCs) in the 
project. 
On GREEN  J1939/CAN Bus communication has been established. 
Flashing GREEN  J1939/CAN Bus device in project but communication 
has not been established. Flash 2 times in 2 seconds. 
On RED  The device has detected an error that has rendered it 
incapable of communicating on the network. 
Flashing RED  The J1939 communication is in a timed-out state.  
Flash 2 times in 2 seconds. 
LED2: PWM Status 










