Boot Sequence
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-
The controller may be booted with or without an Ethernet cable attached.
These are the controller boot sequences:
When the controller is booted with a cable attached, the configured IP address (depending upon the current position of the rotary switch) appears in the 7-segment display.
- See View the Controller IP Address for more information.
- If the controller is started without a network connection then the IP address is not displayed.
- After the boot sequence is successful, the controller is in one of two modes:
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Normal operation. |
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Recovery Mode (if firmware download is permitted). |
PCMM2G Boot Sequence
These are the boot sequences of the PCMM2G:
Internal Flash
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- If the controller is stuck in Stages 1 to 4, then recovery could be made by using the B3 button to boot off of the inactive partition.
- See Boot from Inactive Partition Image - PCMM2G.
|
State |
Display |
Description |
|---|---|---|
|
Hardware Power ON |
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PCMM2G has power. |
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Stage 1 |
|
Bootloader completed. Starting U-Boot. |
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Stage 2 |
|
U-Boot succeeded. Starting Linux Kernel. |
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Stage 3 |
|
Linux Kernel is up. PCMM2G processes Initializing. |
|
Stage 4 |
|
Starting:
|
|
Final Stage |
|
Runtime started. |
Recovery USB Drive
See PCMM2G Web server Recovery Mode.
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-
- If the controller is stuck in Stages 1 to 4, then recovery could be made by using the B2 button to boot off of the recovery USB drive.
- See Boot from Recovery Image (B2 Button).
|
State |
Display |
Description |
|---|---|---|
|
Hardware Power ON |
|
PCMM2G has power. |
|
Stage 1 |
|
Starting U-Boot from recovery USB drive. |
|
Stage 2 |
|
U-Boot succeeded. Starting Linux Kernel. |
|
Stage 3 |
|
Linux Kernel is up. PCMM2G processes Initializing. |
|
Stage 4 |
|
Starting:
|
|
Final Stage |
|
Recovery runtime started. |
