During normal operation, the tray ID display on each controller canister shows the controller-drive tray ID. The Diagnostic LED (lower-digit decimal point) comes on when the display is used for diagnostic codes and goes off when the display is used to show the tray ID. The category code may be followed by a dash + and a "CF" followed by one of the component location codes described in Things to know - Lock-down codes.
Category | Category Code 1 | Detail Codes 2 |
---|---|---|
Startup error | SE+3 |
|
Operational error | OE+ | Lx+ Lock-down codes. (See Things to know - Lock-down codes.) |
Operational state | OS+ |
|
Component failure | CF+ |
|
Diagnostic failure | dE+ | Lx+ = Lock-down codes (See Things to know - Lock-down codes and Things to know - Seven-segment display use cases.) |
Category delimiter | dash+ (Appears as two short dashes: "--"). . |
The separator between category-detail code pairs is used when more than one category detail code pair exists in the sequence. |
End-of-sequence delimiter | blank - 4 | The end-of-sequence delimiter is automatically inserted by the hardware at the end of a code sequence. |
Note:
1 A two-digit code that starts a dynamic display sequence. 2 A two-digit code that follows the category code with more specific information. 3 The plus (+) sign indicates that a two-digit code appears and the Diagnostic LED is turned on. 4 No codes display, and the Diagnostic LED is off. |