On 05/17/2013 03:43 PM, Peter C. Wallace wrote: > On Fri, 17 May 2013, Andrew wrote: > >> Date: Fri, 17 May 2013 22:27:03 +0300 >> From: Andrew <[email protected]> >> Reply-To: "Enhanced Machine Controller (EMC)" >> <[email protected]> >> To: "Enhanced Machine Controller (EMC)" <[email protected]> >> Subject: Re: [Emc-users] 7i43 watchdog has bitten, looking for the cause ? >> >> 2013/5/17 Maximilian H <[email protected]> >> >>> I use a >>> servo loop of one millisecond. >>> >> >> I'd say 1ms is too short for 7i43, at least it never worked for me. Try >> increasing it to 4ms to eliminate the possible cause. >> >> Andrew > > > A 1 ms watchdog timeout will always be marginal for a 1 ms thread (0 margin > for jitter) so minimum watchdog time has to be somewhat longer (thread time + > maximum jitter)
1ms is his servo thread loop, not his watchdog timeout. Maximilian has tried watchdog timeouts of 5 ms (the default in 2.5) and 500 ms, both fail for him: > Now when I connect the setup to the mill I get bitten by the 7i43's > watchdog within maybe an hour, often much earlier, and I have already > increased the watchdog timeout from 5 milliseconds to 0.5 seconds, i.e. > 500 milliseconds. -- Sebastian Kuzminsky ------------------------------------------------------------------------------ AlienVault Unified Security Management (USM) platform delivers complete security visibility with the essential security capabilities. Easily and efficiently configure, manage, and operate all of your security controls from a single console and one unified framework. Download a free trial. http://p.sf.net/sfu/alienvault_d2d _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
