4 Technical features4.7 Status indicators/diagnostic messages gateway48 XI/ON: XNE-GWBR-2ETH-IP 09/2011 MN05002007Z-EN www.eaton.com4.7 Status indicators/diagnostic messages gatewayThe gateway sends the following diagnostic messages:• Undervoltage monitoring for system- and field supply,• Monitoring of the station status,• Monitoring of the communication via the internal module bus,• Monitoring of the communication to Ethernet• Monitoring of the gateway statusDiagnostic messages are displayed in two different ways:• Via the LEDs• Via the respective configuration software (I/O-ASSISTANT) or Modbus-Client4.7.1 Diagnostic messages via LEDsEvery XI/ON gateway displays the following statuses via LEDs:• 2 LEDs for module bus communication (module bus LEDs): GW and IOs• 1 LED for the Ethernet communication (fieldbus-LEDs): MS• 2 LEDs for the state of the Ethernet connection (at the Ethernet connectors): ETH1 andETH2Table 7:LED-displaysLED Status Meaning RemedyGW Off CPU not supplied. Check the voltage supply U SYS atthe gateway.Green Firmware active, gateway readyto operate and transmit-Greenflashing,1 HzFirmware not active. If in addition the "IOs" LED is red,a Firmware download is neces-sary.Red CPU is not ready, VCC level is notwithin the required range.→ possible reasons:– too many modules connected tothe gateway– short circuit in connectedmodule– hardware error in gateway– Check wiring at the gateway andthe voltage supply.– Dismount modules– Replace the gateway.Red/greenflashing,4 HzWINK-Command active The software I/O-ASSISTANT isexecuting a WINK command onthe device. This command isexecuted in order to find outwhich network node is accessed.