When troubleshooting the Schneider Electric 140CPU11302 Module, it’s important to know the number of times the Run LED blinks for each type of error, along with the crash codes possible for that group. All the crash codes are in hexadecimal form for this particular module. The list of possible LED Descriptions and Error Codes are as follows:
| LED Descriptions | ||
|---|---|---|
| LEDs | Color | Indication when On |
| Ready | Green | The CPU has passed powerup diagnostics |
| Run | Green | The CPU has been started and is solving logic (See the following table for Run LED error codes). |
| Modbus | Green | Communications are active on the Modbus port. |
| Modbus + | Green | Communications are active on the Modbus Plus port. |
| Mem Prt | Amber | Memory is write protected (the memory protect switch is on). |
| Bat Low | Red | The battery needs replacing. |
| Error A | Red | Indicates a communications error on the Modbus Plus network. |
| LED Error Codes | ||
|---|---|---|
| Number of Blinks | Code | Error |
| Countinuous | 0000 | requested kernel mode |
| 2 | 80B | ram error during sizing |
| 80C | run output active failed | |
| 82E | MB command handler stack error | |
| 3 | 769 | bus grant received |
| 72A | not master asic on cpu | |
| 72B | master config write bad | |
| 72C | quantum bus DPM write failure | |
| 72F | plc asic loopback test | |
| 730 | plc asic BAD_DATA | |
| 4 | 604 | UPI timeout error |
| 605 | bad UPI response opcode | |
| 606 | UPI bus diagnostic error | |
| 607 | modbus cmd-buffer overflow | |
| 608 | modbus cmd-length is zero | |
| 609 | modbus abort command error | |
| 614 | mbp bus interface error | |
| 615 | bad mbp response opcode | |
| 616 | timeout waiting for mbp | |
| 617 | mbp out of synchronization | |
| 618 | mbp invalid path | |
| 619 | page 0 not paragraph aligned | |
| 61E | bad external uart hardware | |
| 61F | bad external uart interrupt | |
| 620 | bad receive comm state | |
| 621 | bad transmit comm state | |
| 622 | bad comm state trn_asc | |
| 623 | bad comm state trn_rtu | |
| 624 | bad comm state rcv_rtu | |
| 625 | bad comm state rcv_asc | |
| 626 | bad modbus state tmr0_evt | |
| 627 | bad modbus state trn-int | |
| 628 | bad modbus state rcv-int | |
| 631 | bad interrupt | |
| 5 | 503 | ram address test error |
| 52D | P.O.S.T BAD MPU ERROR | |
| 6 | 402 | ram data test error |
| 7 | 300 | EXEC not loaded |
| 301 | EXEC Checksum | |
| 8 | 8001 | Kernal prom checksum error |
| 8002 | flash prog / erase error | |
| 8003 | unexpected executive return | |
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