Re: [CAD_CAM_EDM_DRO] Re: EMC Parallel port config, please help

Lance Hopper wrote:

>Thanks for the links. I have read the users/integrators manuals. I
>took your info and compared it to EMC's "IO show" and now I understand
>what all the views show. I picked up a par port inline jumper board
>to change my pinout, I got my step/dir swapped as needed, and I've got
>the limits working.
> What's throwing me off now is an "enable" or
>"init" output, which (in Mach2) sends power to the motors, when E-stop
>is off, or maybe in EMC, when e-stop is off and machine is "ON". I see
>no mention of such an output, or any what to configure it in the .ini.
> Furthermore, my Super-tech controller comes up in "lopwr" mode, for
>allowing the motors to not get hot when idle. I need an EMC output to
>toggle "lopwr" and "hipwr". If I can get these to outputs working, I'll
>be ready to go
>
>

ESTOP_SENSE_INDEX = n sets the pin that is used to sense the estop
condition. ESTOP_WRITE_INDEX = n sets the pin that EMC uses to command
an E-stop. There is a polarity associated with each of these signals,
so you
can make it go high or low as needed. These are at the very end of the
.ini file. I don't know the exact mapping of pin numbers to index numbers,
as I use different hardware here.

The hi/low power setting will have to be done outside, with a "one-shot"
chip. Or all the step lines together (assuming they go high for a step)
and feed the or to the one-shot, which should be set for a 1 second delay.
As long as steps are being generated, the one-shot will stay in the
high-power
setting, when there have been no steps for one second, it will go to low
power.

Jon