| ??? 11/26/10 16:09 Read: times |
#179665 - a bit off the topic, but Responding to: ???'s previous message |
If you are studying the highest in reliable systems you would be best to focus on building the whole system in triplicate and then coordinate their code execution through some type of interactive 3-way polling and monitoring system.
a bit off the topic, but I have never gotten a satisfactory answer to "how do you mske it impossible that "the interactive 3-way polling and monitoring system" could fail with "status OK""? Erik |
| Topic | Author | Date |
| dual watchdog timer | 01/01/70 00:00 | |
| Scope | 01/01/70 00:00 | |
| maybe wrong site for the question but !!!!!!!!!!!!!!! | 01/01/70 00:00 | |
| You still haven't said... | 01/01/70 00:00 | |
| WDT failure | 01/01/70 00:00 | |
| Dual oscillator | 01/01/70 00:00 | |
| Do you need high reliability? | 01/01/70 00:00 | |
| IEC61508 | 01/01/70 00:00 | |
| Supervisor with WDT | 01/01/70 00:00 | |
| Since you are considering an 805x ... | 01/01/70 00:00 | |
| If one watchdog fails... | 01/01/70 00:00 | |
| the 1232 is external ... remember? | 01/01/70 00:00 | |
| Yes; that was my point - I was agreeing with you! | 01/01/70 00:00 | |
| Sorry! I didn't follow. | 01/01/70 00:00 | |
| Highly Redundant Systems | 01/01/70 00:00 | |
| a bit off the topic, but | 01/01/70 00:00 | |
| it's a matter of statistical probability | 01/01/70 00:00 | |
| Not required for 61508 | 01/01/70 00:00 | |
taken care | 01/01/70 00:00 |