Scott,
I figure from what you say the ONLY way to get an anaolgue value into mach is via the modbus?? No chance of it via the pp or serial port at the moment?? Obviously if it could be done by either the pp or sp that would make it much easier.
I agree i call bs on 10hz not being fast enough for the z axis, the system was accused of hunting because it was too slow, i think if it hunts its not because its too slow, its because the idea of a simple threshold and no proportional response in terms of a control system is junk, its bound to hunt really. So if you can do us for a pid loop that would be first class.
Personally im very interested in what jp is doing and i do realise trying to do everything in mach has its own limitations but to me its the whole beauty of it so id be keen to keep the processing element in mach, especially if we could improve the quality of the control loop. Im sure a plc could do a better job but for the money i could buy a thc system out of the box, its probably what i should do but a combination of stubborness and interest keeps me at this.
I could sort you out with a screen set, it would probably be a simple mach screenset with an additional tab or two, before i got right down to it id need to spend some time thinking about exactly what i want it to do for me....
I will have a think about itand let you know what i come up with, this would be a great time for anybody else to give some input as to what they want.
Matt