Honeywell VRX180 user manual Counter Prompts, Preset, Count Down

Programming Function Blocks and Features

Counter

Counts the number of OFF(0)-to-ON(1) transitions of the input. This number is output as CVn OV. When this number reaches the Preset value, a discrete output parameter CVn OS goes ON(1) until Reset occurs.

Table 4-21 describes the Counter prompts. See Table 4-2 for additional prompts.

Table 4-21 Counter Prompts

Prompt		Range/Selections	Definition
RANGE LOW		OFF or number	Enter the output's trend display limits. Output is not clamped
			or flashed when it exceeds these limits.
RANGE HIGH
INPUT		OFF, discrete parameter, 0,	Input source.
	1
RESET		OFF, discrete parameter, 0,	When Reset is level high, output state (OS) is ON and the
	1		counter resets to zero if counting up or to the Preset value if
			counting down from it. When Reset is level low, counter
			resumes counting.
PRESET		OFF, analog parameter,	The number of input transitions after which the CVn OS
		number	output will go ON(1). To count forever, set to OFF. If OFF,
			CVn OS will not be triggered.
COUNT DOWN		YES or NO	Select NO to count up from zero to the Preset value; YES to
			count down from the Preset value to zero. If Preset is OFF,
			Count Down must be NO.

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