On 4/20/2015 3:27 AM, andy pugh wrote: > On 20 April 2015 at 04:24, Gregg Eshelman <g_ala...@yahoo.com> wrote: >> I need a DOS COM port logger that will write to the log file as it >> monitors and that can handle being cut off by a shut down or reboot. > > It might be easiest to log on separate hardware. Simplest might be an > Arduino, logging to eeprom in one mode and outputting to serial for > logging in another mode. > This assumes that you can't free up another PC to display the COM-port > traffic live.
How would I connect another computer to snoop and save the com traffic without interfering with the 2-way communication with the mill? Another PC isn't a problem, I literally have a stack (as in they really are stacked atop one another) of Dell Optiplex GX-520 boxes plus several others and some laptops. Com back from the mill is 6 limit switches, e-stop, cycle start and cycle stop, which appears to be (going by the manual) just a momentary switch wired in series with e-stop. The limit switches are all separate, the software displays their status and the e-stop status. Detecting which limit is hit is not a matter of watching which way things are moving when a switch is hit. I can manually trip them without the mill moving and the display shows each one. Data from the encoders on the motors is also communicated back over the serial connection. They're incremental only, zeroes when the mill is turned on or when the software is run. I have managed to dig up more information on the software Purdue University's CAD-LAB wrote for this mill. (found the doc files through archive.org and someone who saved most of the site had a large file of docs on the TWIN 3D modeling software, but apparently not the GRAFIC or QTC projects) QTC wasn't done to directly control the mill, it was a 3D graphical CAD program to directly produce G-Code tailored to the PLM2000 - to be run through Ye Olde DOS program. :P I still want copies of it for Windows, Mac and Linux. Was most likely a JAVA program like TWIN. Running it with LCNC would be much nicer because I could switch between CAD and creating G-code and running the mill without needing to do it on two different computers or having to reboot between DOS and another OS. Current project in preliminary designing is adapting an Ondrives 30:1 right angle drive from eBay to a tool turret for my 9x20 and a 4th axis for the PLM2000. Ondrives must have dumped these for nothing when they dropped the Rino name and changed all the model numbers. The Ondrives branded version retails for $687! I got a pair for less than $70 each. The mill will be very handy for both projects, as it has been for the 9x20 conversion. --- This email has been checked for viruses by Avast antivirus software. http://www.avast.com ------------------------------------------------------------------------------ BPM Camp - Free Virtual Workshop May 6th at 10am PDT/1PM EDT Develop your own process in accordance with the BPMN 2 standard Learn Process modeling best practices with Bonita BPM through live exercises http://www.bonitasoft.com/be-part-of-it/events/bpm-camp-virtual- event?utm_ source=Sourceforge_BPM_Camp_5_6_15&utm_medium=email&utm_campaign=VA_SF _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
