Analog Input Block Fields | Proficy iFIX 2024 Documentation

The following table lists the fields available for this block, what each field displays, as well as the valid entries for each field in the list.

The field...	Displays...	Valid Entry
A_ADI	The block's alarm areas.	N/A. This field is provided for backward compatibility.
A_ALMEXT1 A_ALMEXT2	The text entered in the block's alarm extension fields.	Up to 79 characters.
A_ALMINTIME	The time and date at which the block generated the alarm.	N/A. This is a display only field.
A_ALMLASTTIME	The time and date at which the block last generated an alarm.	N/A. This is a display only field.
A_ALMOCCUR F_ALMOCCUR	The number of times a block goes in and out of alarm before it is acknowledged.	N/A. This is a display only field.
A_ALMSHELFREMTIME F_ALMSHELFREMTIME	The remaining time left for a shelved alarm.	N/A. This is a display only field.
A_ALMSHELVED F_ALMSHELVED	Indicates whether a specified alarm is shelved (YES/NO).	N/A. This is a display only field.
A_ALMSHELVEPOLICY	The name of alarm shelving policy.	N/A. This is a display only field.
A_ALMSHLVENAB F_ALMSHLVENAB	Defines whether alarm shelving is enabled (YES/NO) for a block.	N/A. This is a display only field.
A_IALMSHLVENAB F_IALMSHLVENAB	The initial alarm shelving status (ENABLE/DISABLE) for a block.	N/A. This is a display only field.
A_ALMSN	The serial number of the alarm area database.	N/A. This is a display only field.
A_AREA1 through A_AREA15	The alarm areas assigned to the block.	ALL or an alarm area name.
A_AUTO F_AUTO	The current automatic/manual status of the block.	Automatic (1) or Manual (0).
A_CHALM	The chain's most severe alarm.	N/A. This is a display only field.
A_CUALM	The block's current alarm.	N/A. This is a display only field.
A_CV E_CV F_CV	The block's current value.	A numeric value within the EGU range.
A_DALM F_DALM	Whether to delete alarm from summary queue after acknowledgment.	0 (false) or 1 (true).
A_DBAND E_DBAND F_DBAND	The maximum fluctuation the block accepts without re-issuing an alarm.	A numeric value within the EGU range.
A_DESC	The text in the block's Description field.	Up to 256 characters.
A_EGUDESC	The block's engineering units label.	Up to 33 characters.
A_EHI E_EHI F_EHI	The block's high EGU limit.	A numeric value. The range between the low and high values value cannot exceed 3.40282300000000e+38.
A_ELO E_ELO F_ELO	The block's low EGU limit.	A numeric value. The range between the low and high values value cannot exceed 3.40282300000000e+38.
A_ENAB F_ENAB	The block's alarm status.	Enable: Yes (1), or Disable: No (0).
A_EOUT	Yes, if the block writes data to the process hardware, or No, if the block does not.	Yes or No.
A_ESIGACK F_ESIGACK	Whether operators are allowed to acknowledge alarms for this tag without entering a signature, even if this tag requires electronic signatures for data entry.	Yes or No.
A_ESIGCONT F_ESIGCONT	If allow continuous use is enabled for this tag.	Yes or No.
A_ESIG_COMMENT F_ESIG_COMMENT	A comment is required when using an electronic signature.	Enable: Yes (1), or Disable: No (0).
A_ESIGREQ_COMMENT F_ESIGREQ_COMMENT	A comment is required when using an electronic signature.	Enable: Yes (1), or Disable: No (0).
A_ESIGTRAP F_ESIGTRAP	Whether unsigned writes are accepted or rejected by this tag or accepted and logged.	ACCEPT, LOG, REJECT.
A_ESIGTYPE F_ESIGTYPE	The signing requirements for this tag.	None, PERFONLY, or PERFVERI.
A_ETAG	The first four characters of the block's engineering units label.	N/A. This field is provided for backward compatibility.
A_EVENT	The initial event messaging status.	N/A. This is a display only field.
A_HI E_HI F_HI	The block's High alarm limit.	A numeric value within the EGU range.
A_HIHI E_HIHI F_HIHI	The block's High High alarm limit.	A numeric value within the EGU range.
A_HIST_COLLECT F_HIST_COLLECT	Sets whether or not this block is under collection.	Yes (1) or No (0).
A_HIST_COMPRESS F_HIST_COMPRESS	Sets whether or not compression is used by the Collector.	Enable (1) or Disable (0).
A_HIST_COMPTIME F_HIST_COMPTIME	The Collector compression time out.	A positive numeric value (0 or greater), in milliseconds.
A_HIST_COMPTYPE F_HIST_COMPTYPE	The type of Collector deadband setting.	Absolute (0) or Percentage (1).
A_HIST_DEADBAND F_HIST_DEADBAND	The Collector deadband setting.	A positive numeric value (0 or greater).
A_HIST_DESC	The Proficy Historian description.	String; maximum of 128 characters.
A_HIST_INTERVAL F_HIST_INTERVAL	The collection interval for this block.The value of this field must be greater than the value of the A_HIST_OFFSET and F_HIST_OFFSET fields. Use the following formula to determine if the entered value is acceptable for this field. A_/F_HIST_INTERVAL > A_/F_HIST_OFFSET * 1000 NOTE: The values for the A_HIST_OFFSET and F_HIST_OFFSET fields are in seconds.	A float value, in milliseconds. Values must be entered in increments of 100. Minimum value: 100 ms.
A_HIST_OFFSET F_HIST_OFFSET	The collection offset time. The value of this field must be less than or equal to the value of the A_HIST_INTERVAL and F_HIST_INTERVAL fields. Use the following formula to determine if the entered value is acceptable for this field. A_/F_HIST_OFFSET ≤ A_/F_HIST_INTERVAL / 1000 NOTE: The values for the A_HIST_INTERVAL and F_HIST_INTERVAL fields are in milliseconds.	A numeric value, in seconds. Must use whole numbers.
A_HIST_TIMERES F_HIST_TIMERES	The collection time resolution.	Milliseconds (0) or Seconds (1).
A_IAM	The initial Automatic/Manual status of the block.	Automatic or Manual.
A_IENAB	The initial alarm status.	N/A. This is a display only field.
A_IOAD	The block's I/O address.	Depends on your driver. Refer to your driver manual for more information.
A_IODV	The name of the block's I/O driver.	Depends on your driver. Refer to your driver manual for more information.
A_IOHT	The I/O driver's hardware options.	Depends on your driver. Refer to your driver manual for more information.
A_IOSC	The type of signal conditioning used by the block.	Depends on your driver. Refer to your driver manual for more information.
A_ISCAN	The initial scan status (on or off) of the block.	On or Off.
A_LAALM	The block's most severe unacknowledged alarm. If no unacknowledged alarm exists, the current alarm is displayed.	N/A. This is a display only field.
A_LO E_LO F_LO	The block's Low alarm limit.	A numeric value within the EGU range.
A_LOLO E_LOLO F_LOLO	The block's Low Low alarm limit.	A numeric value within the EGU range.
A_NALM F_NALM	Yes or 1, if the block has unacknowledged alarms or No or 0, if the block has no unacknowledged alarms.	N/A. This is a display only field.
A_NAME	The block's type, for example AI for an Analog Input block.	N/A. This is a display only field.
A_NEXT	The name of the next block in the chain.	N/A. This is a display only field.
A_OPCLIMIT	The hardware options of the OPC server.	N/A. This is a display only field.
A_OPCQLTY	The quality status of the OPC server.	N/A. This is a display only field.
A_OPCSUBSTAT	The quality substatus of the OPC server.	N/A. This is a display only field.
A_OPCTIME	The time and date from the OPC server.	N/A. This is a display only field.
A_PDR_ACCESSTIME F_PDR_ACCESSTIME	Reserved.	N/A.
A_PDR_ARRAYLENGTH F_PDR_ARRAYLENGTH	Reserved.	N/A.
A_PDR_DEADBAND F_PDR_DEADBAND	Reserved.	N/A.
A_PDR_DISABLEOUT F_PDR_DISABLEOUT	Reserved.	N/A.
A_PDR_LATCHDATA F_PDR_LATCHDATA	Reserved.	N/A.
A_PDR_UPDATERATE F_PDR_UPDATERATE	Reserved.	N/A.
A_PREV	The name of the previous block in the chain.	N/A. This is a display only field.
A_PRI	The block's alarm priority.	Low, Medium, or High.
A_PRIM	The block's name.	N/A. This is a display only field.
A_ROC E_ROC F_ROC	The maximum acceptable change in the block's value that can occur between scan periods.	A numeric value within the EGU range.
A_SA1 through A_SA3	The security areas assigned to the block.	Up to three security area names.
A_SCALE_CLAMP F_SCALE_CLAMP	Whether the data received or sent will be limited to the ranges specified in the following fields: A_/E_/F_SCALE_HIGH A_/E_/F_SCALE_LOW A_/E_/F_SCALE_RAWHIGH A_/E_/F_SCALE_RAWLOW	Yes (1) or No (0).
A_SCALE_ENABLED F_SCALE_ENABLED	Whether linear scaling is enabled.	Yes (1) or No (0).
A_SCALE_HIGH E_SCALE_HIGH F_SCALE_HIGH	The high limit of the sent values.	A numeric value.
A_SCALE_LOW E_SCALE_LOW F_SCALE_LOW	The low limit of the sent values.	A numeric value.
A_SCALE_RAWHIGH E_SCALE_RAWHIGH F_SCALE_RAWHIGH	The high limit of the received values.	A numeric value.
A_SCALE_RAWLOW E_SCALE_RAWLOW F_SCALE_RAWLOW	The low limit of the received values.	A numeric value.
A_SCALE_USEEGU F_SCALE_USEEGU	Whether Engineering Units are used for scaling block output.	Yes (1) or No (0).
A_SCAN	The on/off scan status of the block.	On or Off.
A_SCANT	The block's scan time and phase.	E for exception-based processing, 0 for one shot processing, or time:phase for time-based processing.
A_SMOTH	The smoothing value.	0 to 15.
A_TAG	The block's name.	N/A. This is a display only field.
A_WARM	Yes or No.	N/A. This is a display only field.
A_ALMACK F_ALMACK	Reserved.	N/A.
A_ALMCHANGE F_ALMCHANGE	Reserved.	N/A.
A_ALMDELETE F_ALMDELETE	Reserved.	N/A.
A_ALMGEN F_ALMGEN	Reserved.	N/A.
A_ALMRESET F_ALMRESET	Reserved.	N/A.
A_ALMUPDATE F_ALMUPDATE	Reserved.	N/A.
A_PUBLISH F_PUBLISH	Reserved.	N/A.
A_WRITABLE F_WRITABLE	Reserved.	N/A.