Unfortunately, the CSMIO/IP-M does not support spindle RPM measurement. This feature is available only on the IP-S and IP-A models.
With the older firmware (v2.x) used with Mach3, spindle speed can be measured using either the INDEX signal or a spindle encoder. However, with the newer firmware (v3.x) used with simCNC and Mach4, only a spindle encoder is supported for RPM measurement.
Unfortunately, the CSMIO/IP-M does not support spindle RPM measurement. This feature is available only on the IP-S and IP-A models.
With the older firmware (v2.x) used with Mach3, spindle speed can be measured using either the INDEX signal or a spindle encoder. However, with the newer firmware (v3.x) used with simCNC and Mach4, only a spindle encoder is supported for RPM measurement.