I have managed pretty well converting 3 machines to EMC2 - two using the parallel port and one using Mesa 5i20 and 7i29 cards. However, now I am looking at using a 5i20+7i33 setup to drive analogue servo drivers that need two inputs, AN+ and AN- 10V (and GND?). It is not clear to me how this is to be done.
The 7i33 card has one AOUTn pin for each of 4 channels (called AOUT0 to AOUT4), and a lot of GND pins. How do I connect my servo driver to these pins?. Should the voltage on the AOUTn pin swing from -10V to +10V? The HAL configuration talks about PWM and PID, etc. With PWM you have PWM and DIR signals and with PID you have UP and DOWN. Which of these are to be used and what do they mean? I think PWM can be swung from -1 to +1 to create >From -10V to +10V - how does DIR fit in. What does UP and DOWN do? (UP 0 to 10V and down 0 to -10V?). As you can see I am totally confused and need some expert advice. I think the difficulty is the two separated interfaces: from EMC2 to Mesa 5i20 and from Mesa 5i20 to 7i33. Hostmot2 deals with the first interface, the second interface is not clear. I have problems with both interfaces. Thanks for any advice. Rudy __________ Information from ESET Smart Security, version of virus signature database 4980 (20100328) __________ The message was checked by ESET Smart Security. http://www.eset.com ------------------------------------------------------------------------------ Download Intel® Parallel Studio Eval Try the new software tools for yourself. Speed compiling, find bugs proactively, and fine-tune applications for parallel performance. See why Intel Parallel Studio got high marks during beta. http://p.sf.net/sfu/intel-sw-dev _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
