Honeywell VRX180 user manual Program Discrete Outputs, Discrete Output Prompts, Input

Programming Function Blocks and Features

4.11 Program Discrete Outputs

Discrete Output function blocks control the relay or open collector output hardware. The Program Discrete Outputs menu item will appear if a Discrete Outputs board is installed.

ATTENTION

If a discrete output has been assigned to a time proportioning output (DAT), it will not be programmable here. See "OUTPUT RELAY" in Table 4-13.

Select a DO to program, then program the prompts in Table 4-15. See Table 4-2 for additional prompts.

Table 4-15 Discrete Output Prompts

Prompt		Range/Selections	Definition
ACTION STATE		NORMAL, INVERT	Determines whether the relay will normally be energized or
			de-energized when the DO’s Input is ON(1). To select
			energized when ON, enter NORMAL (not inverted). To select
			energized when OFF, enter INVERT (inverted).
INPUT		OFF, discrete parameter, 0,	Source of the Discrete Output.
	1
EVENT ENABLE		NONE, RISING, FALLING,	Determines whether changes in DO’s status can be recorded
		BOTH	as events in data storage. For storage to occur, Data
			Storage must also be programmed to store Events.
			NONE - status changes are not stored
			RISING - OFF(0)-to-ON(1) changes can be stored
			FALLING - ON(1)-to-OFF(0) changes can be stored
			BOTH - Rising and falling changes can be stored

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