MoTeC SDL - Manual (Page 50)

48 Appendices
Filter Time Constant: 22usec
Digital Inputs
Suitable for: Switch to 0V, Logic signal & open collector device (eg Hall
Switch)
Pullup Resistor: 4700 ohms to 5V
Voltage Range: 0 to 15V
Positive Trigger Threshold: 3.5 V max
Negative Threshold: 1.0 V min
Hysteresis: 0.5 V Min
Update Rate: 100 times / second
Filter Time Constant: 22usec
Digital Input Measurement Methods
Frequency
Resolution 0.1 Hz
Maximum Frequency: 3200 Hz
Rising Edge Triggered
Period 1 usec
Measures period between rising edges
Resolution: 1 usec
Maximum: 32 msec
Period 100 usec
Measures period between rising edges
Resolution: 100 usec
Maximum: 3.2 sec
Pulse Width 1 usec
Measures pulse low time
Resolution: 1 usec