Honeywell VRX180 user manual Program Analog Inputs, Analog Input Algorithm Selection

Programming Function Blocks and Features

4.7 Program Analog Inputs

To program Analog Inputs, select PROGRAM ANALOG INPUTS on the Main Program Menu. Select an AI to program.

Table 4-5 Analog Input Algorithm Selection

Prompt	Range/Selections		Definition
INPUT ALGORITHM	Standard or Custom		This prompt appears only if “CUSTOM INPUT” is
			enabled under Enable Features in the Program
			Mode Menu (Section 0). If “CUSTOM INPUT” is
			disabled you will see the Standard prompts (Table
		4-6).
			Standard lets you choose a thermocouple, RTD,
			EMF, or pyrometer type. The Standard prompts
			are shown in Table 4-6.
			Custom lets you convert the input from a
			thermocouple or EMF to engineering units using a
			custom curve containing up to 20 points.

Standard algorithm prompts

Table 4-6 describes all the prompts associated with the standard algorithm. These are the default prompts for analog input programming. See Table 4-2 for additional prompts.

Table 4-6 Standard Algorithm Prompts

Prompt	Range/Selections	Definition
INPUT TYPE	See Table 1-3 for selections. The	Input type (thermocouple, RTD, pyrometer)
	default type is OFF.
RANGE LOW	The value must be within the limits	Low end of the input range.
	specified for the input type (see Table
	1-3). Be sure to use the correct value
	for the temperature units used (°F, °C,
	K, °R). To enter the full range for the
	temperature units selected (see
	TEMPERATURE UNITS), select TYPE
	again and press Enter without changing
	the range type.
RANGE HIGH	The value must be within the limits	High end of the input range.
	specified for the input type (see Table
	1-3). Be sure to use the correct value
	for the temperature units used (°F, °C,
	K, °R). To enter the full range for the
	temperature units selected (see
	TEMPERATURE UNITS), select TYPE
	again and press Enter without changing
	the range type.

Video Recorder – User Manual 87