Measurement Specialties USB-1616HS-2 Criteria input signal is equal to Action driven by condition

USB-1616HS-2 User's Guide					Functional Details
	Criteria – input signal is equal to X			Action - driven by condition
	Compare		Setpoint definition	Update conditions:
	X to:		(choose one)
				True only:
		ƒ	Equal to A (X = A)	ƒ	If True, then output value 1
	Limit A or			ƒ	If False, then perform no action
		ƒ	Below A (X < A)
	Limit B			True and False:
		ƒ	Above B (X > B)
				ƒ	If True, then output value 1
				ƒ	If False, then output value 2
				True only
	Window*			ƒ	If True, then output value 1
	(non-hyste	ƒ	Inside (B < X < A)	ƒ	If False, then perform no action
	resis	ƒ	Outside ( B > X; or, X > A)	True and False
	mode)			ƒ	If True, then output value 1
				ƒ	If False, then output value 2
				Hysteresis mode (forced update)
				ƒ	If X > A is True, then output value 2 until X < B is True, then
					output value 1.
		ƒ	Above A (X > A)	ƒ	If X < B is True, then output value 1 until X > A is True, then
	Window*				output value 2.
		ƒ	Below (A < X < B) (Both
	(hysteresis			This is saying:
			conditions are checked when
	mode)			(a) If the input signal is outside the window high, output value 2 until
			in hysteresis mode
				the signal goes outside the window low, and
				(b) if the signal is outside the window low, output value 1 until the
				signal goes outside the window high. There is no change to the detect
				signal while within the window.

The detect signal has the timing resolution of the scan period as seen in the diagram below. The detect signal can change no faster than the scan frequency (1/scan period.)

Figure 25. Example diagram of detection signals for channels 1, 2, and 3

Each channel in the scan group can have one detection setpoint. There can be no more than 16 total setpoints total applied to channels within a scan group.

Detection setpoints act on 16-bit data only. Since the USB-1616HS-2 has 32-bit counters, data is returned

16-bits at a time. The lower word, the higher word, or both lower and higher words can be part of the scan group. Each counter input channel can have one detection setpoint for the counter's lower 16-bit value and one detection setpoint for the counter's higher 16-bit value.

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