Analog Input Mode

Configures the analog input mode for the given resource.

Block ID

Analog Input Mode

Library

MotoHawk_lib/Analog I/O Blocks

Description

This block enables configuration of the selected analog channel. When an input circuit has configurable hardware, selecting the mode will cause the hardware circuit to be controlled to operate in that mode.

If calibration of the mode is enabled, the mode may be altered at runtime.

The data can be obtained in scaled engineering units using Analog Input Engineering Units block. Alternatively the raw analog conversion may be recovered using the Analog Input Raw block.

The actively selected operating mode of the selected analog input can be read by Analog Input Mode State block.

If the selected mode is not supported by given resource, an error during the application build will result.

The Analog Input Mode drop-down list shows complete list of all possible modes for all of the resources. However, some hardware will not be capable of operating in all possible modes.

The following modes are supported:.

Analog Input Mode	Comments/Description	Units
(Mode 1) 0-5V	Voltage measurement.	V
(Mode 2) 0-1.25V	Voltage measurement.	V
(Mode 3) +-1V	Differential voltage measurement.	V
(Mode 4) +-2.5V	Differential voltage measurement.	V
(Mode 5) 4-20mA	Current measurement.	mA
(Mode 6) RTD Low Impedance	Low impedance thermistor (typically PT100).	Ohms
(Mode 7) RTD Medium Impedance	Medium impedance thermistor (typically PT200).	Ohms
(Mode 8) RTD High Impedance	High impedance thermistor (typically PT1000).	Ohms
(Mode 9) Thermocouple	Thermocouple temperature measurement.	mV

Block Parameters

Parameter Field	Values	Comments/Description
Name	Alpha-numeric text, single-quote enclosed	This parameter defines unique identifier which is used as a reference for Analog Input Mode State and Analog Input Engineering Units blocks. The name should be unique and C-legal (no special characters, such as spaces, dashes or commas (underscore allowed).
Resource	Drop-down list	Module resource.
Analog Input Mode	Drop-down list	Input configuration mode for given resource.
Allow parameter marked with* to be calibrated	Checkbox	Allow user to control input configuration mode through calibration.
Read Access Level	0-8	Sets security level 0 lowest, 8 highest, for user access to read value.
Write Access Level	0-8	Sets security level 0 lowest, 8 highest, for user access to write value.
Instrumentation Group	Alpha-numeric text, single-quote enclosed	Determines Folder name and hierarchy. Use "|" character between folder names to delineate subgroup structure.