| ??? 11/26/10 08:11 Read: times |
#179637 - WDT failure Responding to: ???'s previous message |
What happens if the internal watchdog timer does not operate properly in a system, if it gets corrupted, or goes faulty. what should i do to prevent tis. I want to build a redundant system where i need to take care of WDT failure.
Luminary 5000 series have 2 WDT in the architecture, I want to implement it in a highly redundant double or triple modular system, but first i want to solve WDT problem. Changing controller may not be solution. This is a very rare case, may or maynot happen n life time of controller but my requirement needs it |
| 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 |