Ignoramus7608 wrote:

If, when using one of your programs, you suddenly hit an emergency
stop button, does your program stop, also? Then are you able to go
back to the operation that stopped and continue on? Something to
consider.


I am not sure, I will check it out.

If his E-stop chain breaks the PPMC estop circuit, then EMC will be
notified of the condition, and it stops, showing the current block of
G-code. EMC continues reading the encoder position all the time, so you
don't have to re-home or reset the part coordinates. Unfortunately,
EMC doesn't handle restarts perfectly seamlessly. You have to click on
the line (or a different program line that is a better/safer start
place) and then select the "start from line" menu. This causes EMC2 to
scan through the program and find the coordinates at the beginning of
the selected move and go there first before resuming. Most of this
works pretty well. One problem is it won't start the spindle and
coolant, etc. So, you have to manually set that first before clicking
the start from line. (There's an option that disables the ability to
start the spindle and go to manual, but this seems to work by default.)
You have to leave the machine in such a position that the restart move
is clear of crashes.

Jon