Internet PLC Forum

Hi,
is it possible to change the analog input range from the 0-5V to say 0-1 Volt?

I have an application where I need to read one analog value with a 0-1 V range

if the range is corresponding the 10 bit conversion would be fine, otherwise I need at least 13 bits to get enough resolution.

So if I can not change the analog reference voltage what would your suggestion be to get a higher resolution?

thanks and have a nice day

Thanks for the replies;
The stepper motor was selected for size and cost of drive unit (unfortunately without on-board oscillator)
Also I have tha ability to switch to accurate positioning and speed control in a different mode, like killing two birds with one stone

I think I could get away with 4 days since the longest operation is likely to be 12 hours but I will have to scale back on pulses per rev, microstepping that is

is  stepper control realizd in hardware or purely in firmware?
IF hardware then my question would be if the two channels run syncrhonized or not
IF firmware then my question is why the HOME command can not reset the actual position thus creating eternal running capabilities

thanks again

Hi,

I need to jog my stepper motor at a certain speed for an "indefinite" time, that is I can not define the number of steps beforehand.

Imagine moving the system in and out of the region were normal positioning would happen.

Is there any way this can be realizied?
- merge a next move to an ongoing move?
- reset the pulses  to go?
-

please advice,

Another solution for me would be to use another output to jog BUT how do I get something like 4kHz out of any of the other outputs (since it is a variable frequency I cannot use the PWM output for this)

Thanks in advance

Martin