Status LEDs

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SmartStruxure Server Device Status LED

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I/O Module Status LED

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The Status LED on the front of the SmartStruxure devices changes color and flashes to indicate the status of the device.

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图： Location of the Status LED on different SmartStruxure device models

The remaining LEDs on the front differ in number and meaning for the different devices and are explained in the sections about the specific device.

SmartStruxure Server Device Status LED

The SmartStruxure server device Status LED indicates the condition of the device according to the following table.

表格： SmartStruxure Server Device Status LED Patterns

LED Patterns	Condition
Green, constant	Normal operation, status OK
Green, flashing (~1 Hz)	Device restarting, wait
Red, constant	Fatal error - attention required
Red, flashing (~1 Hz)	Device operates, but a problem needs attention
Red/green, flashing (~1 Hz)	Firmware being downloaded, wait
Red/green, vague	Device firmware upgrade mode, wait
No light	No input power

The I/O module Status LED indicates the condition of the device according to the following table.

表格： I/O Module Status LED Patterns

LED Patterns	Condition
Green, constant	Online and configured (at least one channel/point downloaded successfully)
Green, flashing (200 ms ON, 200 ms OFF)	Online and unconfigured (physical module that either matches/mismatches logical module)
Green, slow flashing (approximately every 3 s)	Low power mode (saves energy)
Red, constant	Error requiring attention (for example, the input voltage is too low)
Red, flashing (100 ms ON, 100 ms OFF)	Offline with respect to the SmartStruxure server device (both configured and unconfigured modules)
Red/Green, flashing (green 100 ms, red 100 ms)	Bootloader mode (downloading data)
No light	No input power

The PS-24V power supply Status LED indicates the condition of the device according to the following table.

表格： Power Supply Status LED Patterns