Hello, I have a old mill that I want to use with linuxcnc.
I have prepared a pc with a 7i43+7i33+custom pcb to interface the mill. That pc with the interface I have both tested with the latency test and also with 7i43+7i33+pcb and the output for EstopWrite connected to the input of EstopSense in the lab for over *two weeks*, not days, with no latencies at all to speak of. Max. latency with huge load of IO was in the order of a few tens of microsecs, so I expected no problems. I use a servo loop of one millisecond. 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. I am a bit out of ideas of what could be the cause for the watchdog biting. The lab setup runs fine with latency test, the pc+7i43+7i33 on the lab bench with the servo calculations running also makes no problems. I am getting no message of "unexpected realtime delays" in axis or in dmesg when the watchdog bites - which I would also expect when the watchdog is not pet for 0.5 seconds. Finally is there an IO pin in the motion module to which I can connect the 7i43 watchdog's has-bit pin ? Both to use the message to generate an estop and to be able to reset it ? I looked at the pins of motion at http://linuxcnc.org/docs/html/man/man9/motion.9.html, but could not see something suiteable. Because right now I have to manually halcmd setp hm2_7i43.0.watchdog.has_bit 0 in a terminal, and I would like to be able to reset that when I get out of estop. BR Max. ------------------------------------------------------------------------------ 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
