Module Data Types - 1794-IF4I
The table below lists and describes module-defined data types for the 1794-IF4I analog input module. It includes information for input (as indicated by an "I") and configuration (as indicated by a "C").
TIP:
FLEX I/O is based on 16-bit INTs and not 32-bit DINTs. This may decrease performance with certain instructions.
Module-defined Data Type: AB:1794_IF4I:I:0
Member Name | Type | Default Display Style | Description |
Fault | DINT | Binary | Fault - Used for Input Data Validation 0 = Valid Data 1 = Invalid Data - if the connection to the module has been lost, or if the module has a severe hardware fault, the lower 8 members are set to 1. |
Ch0Data | INT | Decimal | Input data for channel 0. |
Ch1Data | INT | Decimal | Input data for channel 1. |
Ch2Data | INT | Decimal | Input data for channel 2. |
Ch3Data | INT | Decimal | Input data for channel 3. |
RealTimeSample | INT | Decimal | Elapsed time in 5ms increments programmed by the Real Time Sampling interval. real time sample (RTS) A programmed interval at which updated information is supplied to the processor. It is a method by which data is gathered, at precise intervals, for use by the processor. |
CalibrationDone | BOOL | Decimal | Set to 1 after calibration cycle completed. |
CalibrationBad | BOOL | Decimal | Set to 1 if channel calibration coefficients cannot be saved or read properly. |
ConfigurationMode | BOOL | Decimal | Set to 1 when configuration mode is selected. The module status indicator flashes when set. |
FieldPowerOff | BOOL | Decimal | Set to 1 when the 24V field power fails. The module status indicator flashes when set. |
PowerUp | BOOL | Decimal | This member is set when the configuration word is all zeros due to reset or a cleared configuration word. The module status indicator flashes when set. |
Ch0Underrange Ch1Underrange Ch2Underrange Ch3Underrange | BOOL | Decimal | Each member is set when its corresponding input channel is below a preset limit defined by the selected configuration. |
Ch0Overrange Ch1Overrange Ch2Overrange Ch3Overrange | BOOL | Decimal | Each member is set when its corresponding input channel is above a preset limit defined by the selected configuration. |
Module-defined Data Type: AB:1794_IF4I:C:0
Member Name | Type | Default Display Style | Description |
InputFilter | INT | Binary | Encoded input filter. Sets the filter characteristics including conversion rate and low pass filter for the selected channel. To achieve the fastest channel update rate, the low pass filter should be set to 'r;no low pass’. |
InputConfiguration | INT | Binary | Contains input configuration data. |
RTSInterval | INT | Decimal | Real Time Sample programmed interval. Range 0-30000ms in multiples of 5. |
Ch0Calibrate Ch1Calibrate Ch2Calibrate Ch3Calibrate | BOOL | Decimal | Includes a channel in calibration when selected. |
GainOffsetCalibration | BOOL | Decimal | Holds the High or Low Reference settings you selected on the Input Configuration tab from the Module Properties dialog box. |
CalibrationClock | BOOL | Decimal | If selected, calibration mode starts and calibration settings for the selected channels are accepted. If clear, the accepted current calibration coefficients are stored to selected channels, applied and calibration mode is exited. |
QuickCalibration | BOOL | Decimal | If set to 1, calibration coefficient is stored to all related configurations for selected channels. |
InterleaveInterrupts | BOOL | Decimal | When enabled, ensures exchange of time critical data when channels are configured for the fastest update times. Do not check the Interleave Module Interrupts checkbox unless you know you have a specific use for this option. The Interleave Module Interrupts feature is useful only in limited circumstances and it only applies when the module is configured for its fastest possible operation. |
Transparent | BOOL | Decimal | If set, permits configuration to be changed without using the InitiateConfiguration data type. |
InitiateConfiguration | BOOL | Decimal | If set, instructs the module to enter configuration mode. When transition to 0 occurs, configuration is applied and any subsequent configuration is ignored until this member is toggled. |
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