Observe the Status LEDs on the front of the controller and see the following table to troubleshoot the controller.
|
LED Label |
LED Color |
Normal LED State |
Description of LED States |
|---|---|---|---|
|
POWER |
Green |
On steady |
Off steady = No supply power. Check the output wiring for short circuits and cycle power to the controller. On steady = power connected |
|
FAULT |
Red |
Off steady |
Off steady = no faults On steady = device fault: no application loaded; main code download required if controller is in boot mode, or a firmware mismatch exists between the Verasys controllers and the ZRF1811 Wireless Field Bus Router. Blink - 2 Hz = download or startup is in progress, not ready for normal operation. |
|
Sensor BUS |
Green |
Blink - 2 Hz |
Blink - 2 Hz = data transmission (normal communication) Off steady = no data transmission (auto baud in progress) On steady = communication lost, waiting to join |
|
System BUS |
Green |
Blink - 2 Hz |
Blink - 2 Hz = data transmission (normal communication) Off steady = no data transmission (auto baud in progress) On steady = communication lost, waiting to join |
|
MODBUS |
Green |
Blink - 2 Hz |
Blink - 2 Hz = data transmission (normal communication) Off steady = no data transmission (auto baud in progress) On steady = communication lost, waiting to join |