GE Industrial Solutions AF-650 GP DeviceNet - Manual (Page 50)

8 Troubleshooting
8.1 Troubleshooting
8.1.1 LED Status
First, check the LEDs.
The DeviceNet control card contains two bi-colour (green/red) LEDs to indicate the state of the device and the network respectively.
The upper LED indicates module status (MS). The lower LED indicates network
status (NS).
State Bi-colour LED Status
No Power Off There is no power applied to the option
Device operational Green The DeviceNet option is operating in normal condition.
Standby Green The DeviceNet option needs commissioning due to con-
figuration missing, incomplete or incorrect.
Minor fault Red Recoverable fault.
Unrecoverable fault Red Unrecoverable fault, may need replacing.
Self test Green The DeviceNet option is in Self-test mode.
Red
Table 8.1: LED: Module Status (MS)
State Bi-colour LED Status
No Power/Not on-
line Off The option has not completed “Duplicate MAC ID” test yet
or may not be powered.
On-line, not connec-
ted Green The option is on-line, but not allocated to a master.
On-line and connec-
ted Green The DeviceNet option is on-line and connected to a mas-
ter.
Connection time-out Red One or more I/O connections are in time-out state.
Critical link failure Red
Table 8.2: LED: Network Status (NS)
AF-600FP /650 GP DeviceNet Operating Instructions
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