Hi,
The polling frequency should be set at 100Hz or higher
Firstly the 'Polling Frequency' is a new one to me. I know the Ethernet SmoothSteper has a 'Refresh Rate' set at
40Hz (default). That is the rate at which the controller and Mach swap data packets.
Each outgoing Mach data packet will contain as many as 50 PVT (Position Velocity Time) data lines. Each time slice is
1 millisecond wide. These time slices get stacked up in the controller buffer. Any given time slice will contain position
data for ALL axes of the machine and ALL axes will move simultaneously. There should be none of this 'one axis moves
a bit and then the next axis moves a bit'
Quite frankly I think the Refresh Rate (I'm assuming its synonymous Polling Frequency) is a red herring. It has no bearing
on the granularity of the PVT time slices.
The Ethernet SmoothStepper has a buffer of 180 ms (default) of motion. I've never seen it drop below 150ms. If the buffer
runs out Mach crashes. May I suggest you find the comparable spec data for your controller and monitor the buffer. The ESS
plugin has a live diagnostic to monitor the buffer and would guess your controller has a similar feature.
Craig