Statistical Data Block Fields

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_A1R

Whether an alarm occurred for the N Point Alarm on RBAR value.

Yes or No.

A_A1X

Whether an alarm occurred for the N Point Control Limit Alarm on XBAR value.

Yes or No.

A_A3X

Whether an alarm occurred for the N Point Warning Limit Alarm on XBAR value.

Yes or No.

A_ADI

The blocks alarm areas.

N/A. This field is provided for backward compatibility.

A_ALMEXT1
A_ALMEXT2

The text entered in the blocks 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_ASD

Whether an alarm occurred for the N Point Alarm on SBAR value.

Yes or No.

A_ASP

Whether an alarm occurred for the N Point Specification Limit on XBAR alarm.

Yes or No.

A_AUTO
F_AUTO

The current automatic/manual status of the block.

Automatic (1) or Manual (0).

A_AUTOX

Whether the block recalculates XBARBAR, RBAR, and SBAR values after startup.

STARTUP, ALWAYS, or NEVER.

A_CGRP

The current number of group collected.

12 to 50.

A_CHALM

The chains most severe alarm.

N/A. This is a display only field.

A_COBS

The current number of observations.

1 to 25.

A_CPK
F_CPK

The blocks process capability index.

N/A. This is a display only field.

A_CRITX

The value of the N Point Critical Runs on XBAR alarm.

A numeric value.

A_CRX

Whether an alarm occurred for the N Point Critical Runs on XBAR alarm.

Yes or No.

A_CTLR

The value of the N Point Alarm on RBAR limit.

A numeric value.

A_CTLS

The value of the N Point Alarm on SBAR limit.

A numeric value.

A_CTLX

The value of the N Control Limit Alarm on XBAR limit.

A numeric value.

A_CUALM

The blocks current alarm.

N/A. This is a display only field.

A_CV
E_CV
F_CV

The blocks 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_DESC

The text in the blocks Description field.

Up to 256 characters.

A_EA1R

Whether the N Point Alarm on RBAR limit is enabled.

Yes or No.

A_EA1X

Whether the N Point Control Limit Alarm on XBAR limit is enabled.

Yes or No.

A_EA3X

Whether the N Point Warning Limit Alarm on XBAR limit is enabled.

Yes or No.

A_EASD

Whether the N Point Alarm on SBAR limit is enabled.

Yes or No.

A_EASP

Whether the N Point Specification Limit Alarm on XBAR limit is enabled.

Yes or No.

A_ECRX

Whether the N Point Critical Runs on XBAR alarm is enabled.

Yes or No.

A_EGUDESC

The blocks engineering units label.

Up to 33 characters.

A_EHI
F_EHI

The blocks high EGU limit.

A numeric value. The range between the low and high values value cannot exceed 3.40282300000000e+38.

A_ELO
F_ELO

The blocks low EGU limit.

A numeric value. The range between the low and high values value cannot exceed 3.40282300000000e+38.

A_ELRX

Whether the Length of Runs Alarm is enabled.

Yes or No.

A_ENAB
F_ENAB

The blocks alarm status.

Enable: Yes (1), or Disable: No (0).

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_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 blocks engineering units label.

N/A. This field is provided for backward compatibility.

A_ETRX

Whether the Trend of Run Alarm is enabled.

Yes or No.

A_EVENT

The initial event messaging status.

N/A. This is a display only field.

A_FCOMP

The forced computation of the control limits.

DONE

A_GET1

The name of the block that the Statistical Data uses as its input.

A block name.

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 block's 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_ISCAN

The initial scan status (on or off) of the block.

On or Off.

A_LAALM

The blocks most severe unacknowledged alarm. If no unacknowledged alarm exists, the current alarm is displayed.

N/A. This is a display only field.

A_LCALC

Whether the block recalculates control limit (XBAR, R, and S) values after startup.

STARTUP, ALWAYS, or NEVER.

A_LCLR
F_LCLR

The R value lower control limit.

A numeric value.

A_LCLS
F_LCLS

The S value lower control limit.

A numeric value.

A_LCLX
F_LCLX

The X value lower control limit.

A numeric value.

A_LRX

Whether an alarm occurred for the Length of Runs Alarm.

Yes or No.

A_LSLX
F_LSLX

The blocks lower specification limit.

A numeric value.

A_LWLX
F_LWLX

The blocks lower warning limit.

A numeric value.

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 blocks type, for example AI for an Analog Input block.

N/A. This is a display only field.

A_NAREA

Enters a new alarm area in the alarm area database.

 

A_NEXT

The name of the next block in the chain.

N/A. This is a display only field.

A_NGRP

The total number of groups to collect before calculating limits.

1 to 25.

A_NOBS

The total number of observations per group.

12 to 520.

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_PREV

The name of the previous block in the chain.

N/A. This is a display only field.

A_PRI

The blocks alarm priority.

Low, Medium, or High.

A_PRIM

The blocks name.

N/A. This is a display only field.

A_R
F_R

The previous groups R value.

A numeric value.

A_RBAR
F_RBAR

The blocks RBAR value.

A numeric value.

A_RUNX

The value of the Length of Runs Alarm.

A numeric value.

A_S
F_S

The previous groups S value.

A numeric value.

A_SA1
through
A_SA3

The security areas assigned to the block.

Up to three security area names.

A_SBAR
F_SBAR

The average standard deviation.

A numeric value.

A_SCAN

The on/off scan status of the block.

On or Off.

A_SCANT

The blocks scan time and phase.

E for exception-based processing, 0 for one shot processing, or time:phase for time-based processing.

A_SDEV
F_SDEV

The standard deviation.

A numeric value.

A_SPECX

The value of the N Point Specification Limit Alarm on XBAR limit.

A numeric value.

A_SQ

The name of a digital block that controls when to sample input values.

A block name.

A_TAG

The blocks name.

N/A. This is a display only field.

A_TRNDX

The value of the Trend of Runs Alarm.

A numeric value.

A_TRX

Whether an alarm occurred for the Trend of Runs Alarm.

Yes or No.

A_UCLR
F_UCLR

The R value upper control limit.

A numeric value.

A_UCLS
F_UCLS

The S value upper control limit.

A numeric value.

A_UCLX
F_UCLX

The X value upper control limit.

A numeric value.

A_USLX
F_USLX

The blocks upper specification limit.

A numeric value.

A_UWLX
F_UWLX

The blocks upper warning limit.

A numeric value.

A_WAIT

The time that the block waits between collecting data between groups.

0 to 32767 seconds.

A_WARM

Yes or No.

N/A. This is a display only field.

A_WARNX

The value of the N Point Warning Limit Alarm on XBAR limit.

A numeric value.

A_XBAR
F_XBAR

The previous groups XBAR value.

A numeric value.

A_XBB
F_XBB

The XBARBAR value.

A numeric value.

A_ALMACK
F_ALMACK

Reserved for future use.

A_ALMCHANGE
F_ALMCHANGE

Reserved for future use.

A_ALMDELETE
F_ALMDELETE

Reserved for future use.

A_ALMGEN
F_ALMGEN

Reserved for future use.

A_ALMRESET
F_ALMRESET

Reserved for future use.

A_ALMUPDATE
F_ALMUPDATE

Reserved for future use.

A_PUBLISH
F_PUBLISH

Reserved for future use.

A_WRITABLE
F_WRITABLE

Reserved for future use.