Led Indicators - GE Mark VIe System Manual

8.10 LED Indicators

Controller status LED indicators are located on the front panel of the controller. Refer to the LED section for the specific
controller platform in the Mark VIe and Mark VIeS Control Systems Volume II: System Guide for General-purpose
Applications (GEH-6721_Vol_II), the chapter Controllers.
The Boot LED is continuously lit during the boot process unless an error is detected. If an error is detected, the LED flashes at
a 1-Hz frequency. The LED, when flashing, is on for 500 ms and off for 500 ms. The number of flashes indicates the failed
state. After the flash section, the LED turns off for three seconds. Boot LED flash codes are as follows:
• 1: Failed Serial Presence Detect (SPD) EEPROM
• 2: Failed to initialize DRAM or DRAM tests failed
• 3: Failed NOR flash file system verification
• 4: Failed to load FPGA or PCI failed
• 5: CompactFlash device not found
• 6: Failed to start IDE driver
• 7: CompactFlash image not valid
If the CompactFlash image is valid but the runtime firmware has not been loaded, the Boot LED flashes continuously at a
1-Hz frequency. When the firmware is loaded, the Boot LED turns off.
I/O pack and Processor status LEDs are as follows:
• Green LED labeled PWR indicates the presence of control power.
• Green LED labeled LINK is provided for each Ethernet port to indicate that a valid Ethernet connection is present.
• Yellow LED labeled TxRx is provided for each Ethernet port to indicate when the pack is transmitting or receiving data
over the port.
• Red LED labeled ATTN indicates pack status, with the following conditions.
− LED off - no detectable problems with the pack
− LED solid on - a critical fault is present that prevents the pack from operating. Critical faults include detected
hardware failures on the processor or acquisition boards, or no application code is loaded.
− LED flashing quickly (¼ cycle) - an alarm condition is present in the pack (for example, the wrong pack on the
terminal board), or there is no terminal board, or there were errors loading the application code.
− LED flashing at medium speed (¾ cycle) - the I/O pack is not online.
− LED flashing slowly (2 cycle) - the I/O pack has received a request to flash the LED indicating that the pack is used
during factory test, or as an aid to confirm the physical location against the ToolboxST application settings.
For further details on BPPx Processor LEDs, refer to the Mark VIe and Mark VIeS Control Systems Volume II: System Guide
for General-purpose Applications (GEH-6721_Vol_II), the Common I/O Module Functionality section BPPx Processor
LEDs.
194 GEH-6721_Vol_I_BP GEH-6721_Vol_I Mark VIe and Mark VIeS Control Systems Volume I
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