DEVICENET OPTION BOARD LAYOUT AND CONNECTIONS vacon • 724-hour support +358 (0)40 837 1150 • Email: vacon@vacon.com4.2 LED indicationsThe DeviceNet Option Board includes three LED status indicators next to the connector: Networkstatus (N), Node address (A) and Module status (M). Network status provides information on thenetwork connection status, Node address blinks the MAC ID of the unit while it is powered andModule status provides information on the DeviceNet module.Figure 6-1. LED indications on the DeviceNet boardNetwork status LED (N)LED is: Meaning:OFF The OPTC7 is not on-line- The device has not completed the Dup_MAC_ID test yet- If the Module status LED is off, the device is notpoweredGreen The OPTC7 is on-line and allocated to a MasterBlinkinggreenThe OPTC7 has passed the Dup_MAC_ID test, is on-line, but isnot allocated to a masterBlinkingredOne or more I/O connections are in the Timed-Out stateRed The OPTC7 cannot communicate on the network (DuplicateMAC ID or Bus-off)Module status LED (M)LED is: Meaning:OFF There is no power applied to the OPTC7Green The OPTC7 is operating normallyBlinkinggreenThe OPTC7 board is in Standby state or the device needscommissioning due to a missing, incomplete or incorrectconfigurationBlinkingredThe option board has detected a Recoverable FaultRed The option board has detected an Unrecoverable FaultX1NAMgreen/redgreen/redgreen/red12345