As we get access to faster microcontroller chips, we are able to incorporate new features. The latest feature is a medium speed counter implemented in firmware.
The "OnBoard Counter type B" (OBCB) is able to count at up to 1.8kHz on up to 8 inputs simultaneously. It accumulates counts in a 16-bit counter per channel. A novel timebase system lets you make frequency measurements.
This feature is in addition to the hardware based high speed counter, which goes to up to 100kHz (depending on the product), and the quadrature counter, plus of course all the ways you can count in SPLatWare.
| Type | Frequency | Channels | Use |
| OBCA | Up to 100kHz (product dependent) | 1 | High speed event and frequency |
| OBCB | 1.8kHz | Up to 8 | Medium speed event and frequency |
| OBQC | 900Hz | 1 (at present) | Up/down position counting off a quadrature encoder |
| Floating point, SPLatWare | Depends on your program, 10's of Hz | Limited by your program | Low rate event counting with large counts (up to 16 million) |
| Integer, SPLatWare | Depends on your program, 10's to 100's of Hz | Limited by your program | Low rate event counting, loop counting |
