I/O controller

The USB I/O controller is an elegant and affordable solution for adding robust digital I/O to a PC based computer.

Features

No additional power necessary. powers through USB port
easy connection through detachable screw terminals per 4 inputs / ouputs
status indicators for all channels
status indicators for USB and controller status
fully galvanical separated inputs support 5V, 12V and 24V logic
fully galvanical separated outputs are current limited
average response time <5ms
demo software for easy testing
hardware pulse counters
programmable events for pin change and counter value compare
special set of timing features

Programmable events

for each input the user can select whether he wants to be notified about a change in level.
If the user selects to not be notified he can still retreive the values by a retreive command.

Counters

The I/O controller features two 16 bit hardware counter inputs. The user can either request the count values, or request to be notified at specific counter values. Also the user can be notified of the fact that the counter received a preset number of pulses

Timing features

As the timing of USB is controlled by the computer (usually Windows), the data latency cannot be guaranteed.
To compensate for this, the I/O controller has a set of special features.