6. RAS Information
6.2 Buffer memory information
Various RAS information are stored in the AS311’s buffer memory. These information can be read by READ instruction. When some abnormality has occurred, check these information.
6.2.1Module status
Address 4 of the buffer memory stores the AS311 module status.
4
F | E | D | C | B | A | 9 | 8 | 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 |
RDY | ERR | 0 | 0 | 0 | 0 | 0 | 0 |
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| Error code |
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| Bit F |
| RDY (Ready) |
| 1 = operating normally |
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| 0 = under initialization or error state |
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| Bit E |
| ERR (Error) |
| 1 = error state |
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| 0 = no error (normal) |
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| Bit |
| Error code |
| Shows the detected error item if ERR is 1. |
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| See the table below (H00 when normal) |
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| Error |
| Type of error |
| Description | Status |
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| H01 | CPU error | CPU error has been detected | Operation is stopped. |
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| during initialization. |
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| H02 | ROM error | ROM error has been detected | Operation is stopped. |
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| during initialization. |
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| H03 | RAM error | Work RAM error has been | Operation is stopped. |
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| detected during initialization. |
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| H04 | Buffer memory | Buffer memory error has been | Operation is stopped. |
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| error | detected during initialization. |
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| H05 | Switch setting | Switch setting abnormality has | Operation is stopped. |
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| abnormal | been detected during |
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| initialization. |
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| H10 | Watchdog | Watchdog timer error has | Operation is stopped. |
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| timer error | occurred during operation. | Cold reset will be |
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| effective. |
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| H11 | Trap interrupt | Trap interrupt has occurred by | Operation is stopped. |
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| error | detecting illegal instruction | Cold reset will be |
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| during operation. | effective. |
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| H12 | Buffer memory | Buffer memory | Operation is stopped. |
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| occurred during operation. | Cold reset will be |
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| effective. |
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User’s Manual 53