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_AACK |
A block and field to use for alarm acknowledgment. |
Block.field |
A_ADI |
The blocks alarm areas. |
N/A. This field is provided for backward compatibility. |
A_ALMEXT1 |
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_ALMSN |
The serial number of the alarm area database. |
N/A. This is a display only field. |
A_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_ALM_SUSPENDMODE F_ALM_SUSPENDMODE |
Configures Event messaging (Suspend mode), which applies to the process alarm limit as an event. |
Enable: Yes (1), or Disable: No (0). |
A_AREA1 through A_AREA15 |
The alarm areas assigned to the block. |
ALL or an alarm area name. |
A_ASUSP |
A block and field that controls whether the Analog Alarm block processes alarms. |
Block.field |
A_AUTO |
The current automatic/manual status of the block. |
Automatic (1) or Manual (0). |
A_CCDEV |
The digital block to close when deviation alarms occur. |
FIX32.node.block.field |
A_CCHH |
The digital block to close when High High alarms occur. |
FIX32.node.block.field |
A_CCHI |
The digital block to close when High alarms occur. |
FIX32.node.block.field |
A_CCLL |
The digital block to close when Low Low alarms occur. |
FIX32.node.block.field |
A_CCLO |
The digital block to close when Low alarms occur. |
FIX32.node.block.field |
A_CCOTH |
The digital block to close when other alarms occur. |
FIX32.node.block.field |
A_CCROC |
The digital block to close when Rate of Change alarms occur. |
FIX32.node.block.field |
A_CHALM |
The chains most severe alarm. |
N/A. This is a display only field. |
A_COMM_SURPRESS |
Sets whether COMM alarms are suppressed for this block. When selected, this option separates the original alarm condition from the COMM alarm, and returns the block to the same state as it was prior to a COMM alarm. For example, if prior to the COMM alarm, the AA block was an active alarm but already acknowledged, that is the state it should return to after communication is restored. If disabled, AA blocks handle one alarm at a time. As a result, it is possible that acknowledgement of a COMM alarm could cause the ACK bit in the PLC to be written, and the original alarm condition, if already acknowledged, could re-alarm. |
Enable (1) or Disable (0). |
A_CTK_PERSIST |
Sets whether blocks allow write attempts to the contact(s) with every scan, even if the value being written is unchanged. When disabled, the AA block only attempts to write to the defined contact tag when a value has changed and it needs to be written to the PLC. The write is a one-time attempt, so if it fails, the write will not be retried until the block needs to write a new value. NOTE: There are four modes for the contacts - “Acknowledge”, “Return”, “All Clear”, and “Never” - that control when the contact is cleared. Since the contact mode of “Never” does not reset the contact, the Continuous Output option is not supported for this contact mode. |
Enable (1) or Disable (0). |
A_CUALM |
The blocks current alarm. |
N/A. This is a display only field. |
A_CV |
The blocks current value. |
A numeric value within the EGU range. |
A_DALM |
Whether to delete alarm from summary queue after acknowledgment. |
0 (false) or 1 (true). |
A_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 blocks Description field. |
Up to 256 characters. |
A_DEV |
The blocks deviation alarm limit. |
A numeric value within the EGU range. |
A_DTDEV |
The length of time to wait before generating deviation alarms. |
Any time from 00:00:00:00 to 03:00:00:00 (up to 3 days, in the time format of dd:hh:mm:ss). |
A_DTHH |
The length of time to wait before generating High High alarms. |
Any time from 00:00:00:00 to 03:00:00:00 (up to 3 days, in the time format of dd:hh:mm:ss). |
A_DTHI |
The length of time to wait before generating High alarms. |
Any time from 00:00:00:00 to 03:00:00:00 (up to 3 days, in the time format of dd:hh:mm:ss). |
A_DTLL |
The length of time to wait before generating Low Low alarms. |
Any time from 00:00:00:00 to 03:00:00:00 (up to 3 days, in the time format of dd:hh:mm:ss). |
A_DTLO |
The length of time to wait before generating Low alarms. |
Any time from 00:00:00:00 to 03:00:00:00 (up to 3 days, in the time format of dd:hh:mm:ss). |
A_DTOTH |
The length of time to wait before generating other alarms. |
Any time from 00:00:00:00 to 03:00:00:00 (up to 3 days, in the time format of dd:hh:mm:ss). |
A_DTROC |
The length of time to wait before generating rate of change alarms. |
Any time from 00:00:00:00 to 03:00:00:00 (up to 3 days, in the time format of dd:hh:mm:ss). |
A_DVALM |
The current alarm status for deviation alarms. |
N/A. This is a display only field. |
A_DVPRI |
The alarm priority of deviation alarms. |
Low, Medium, or High. |
A_EGUDESC |
The blocks engineering units label. |
Up to 33 characters. |
A_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 |
The blocks low EGU limit. |
A numeric value. The range between the low and high values value cannot exceed 3.40282300000000e+38. |
A_ENAB |
The blocks 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 |
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 |
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 |
Whether unsigned writes are accepted or rejected by this tag or accepted and logged. |
ACCEPT, LOG, REJECT. |
A_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_EVENT |
The initial event messaging status. |
N/A. This is a display only field. |
A_HHALM |
The current alarm status for High High alarms. |
N/A. This is a display only field. |
A_HHPRI |
The alarm priority of High High alarms. |
Low, Medium, or High. |
A_HI |
The blocks High alarm limit. |
A numeric value within the EGU range. |
A_HIHI |
The blocks High High alarm limit. |
A numeric value within the EGU range. |
A_HIALM |
The current alarm status for High alarms. |
N/A. This is a display only field. |
A_HIPRI |
The alarm priority of High alarms. |
Low, Medium, or High. |
A_HIST_COLLECT |
Sets whether or not this block is under collection. |
Yes (1) or No (0). |
A_HIST_COMPRESS |
Sets whether or not compression is used by the Collector. |
Enable (1) or Disable (0). |
A_HIST_COMPTIME |
The Collector compression time out. |
A positive numeric value (0 or greater), in milliseconds. |
A_HIST_COMPTYPE |
The type of Collector deadband setting. |
Absolute (0) or Percentage (1). |
A_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 |
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 |
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 |
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 blocks I/O address. |
Depends on your driver. Refer to your driver manual for more information. |
A_IODV |
The name of the blocks I/O driver. |
Depends on your driver. Refer to your driver manual for more information. |
A_IOHT |
The I/O drivers 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 blocks most severe unacknowledged alarm. If no unacknowledged alarm exists, the current alarm is displayed. |
N/A. This is a display only field. |
A_LAPRI | The block's latched priority. This priority corresponds to the block's latched alarm (A_LAALM). | N/A. This is a display only field. |
A_LLALM |
The current alarm status for Low Low alarms. |
N/A. This is a display only field. |
A_LLPRI |
The alarm priority of Low Low alarms. |
Low, Medium, or High. |
A_LO |
The blocks Low alarm limit. |
A numeric value within the EGU range. |
A_LOALM |
The current alarm status for Low alarms. |
N/A. This is a display only field. |
A_LOLO |
The blocks Low Low alarm limit. |
A numeric value within the EGU range. |
A_LOPRI |
The alarm priority of Low alarms. |
Low, Medium, or High. |
A_MDEDV |
When to open the deviation alarms contact. |
Acknowledge, Return, All Clear, or Never. |
A_MDEHH |
When to open the High High alarms contact. |
Acknowledge, Return, All Clear, or Never. |
A_MDEHI |
When to open the High alarms contact. |
Acknowledge, Return, All Clear, or Never. |
A_MDELL |
When to open the Low Low alarms contact. |
Acknowledge, Return, All Clear, or Never. |
A_MDELO |
When to open the Low alarms contact. |
Acknowledge, Return, All Clear, or Never. |
A_MDEOT |
When to open the other alarms contact. |
Acknowledge, Return, All Clear, or Never. |
A_MDERC |
When to open the contact for Rate of Change alarms. |
Acknowledge, Return, All Clear, or Never. |
A_NALM |
Yes or 1, if the block has unacknowledged alarms or
|
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. |
N/A. This is a write 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_OTALM |
The current alarm status for other alarms. |
N/A. This is a display only field. |
A_OTPRI |
The alarm priority of other alarms. |
Low, Medium, or High. |
A_PDR_ACCESSTIME |
Reserved. | N/A. |
A_PDR_ARRAYLENGTH |
Reserved. | N/A. |
A_PDR_DEADBAND |
Reserved. | N/A. |
A_PDR_DISABLEOUT |
Reserved. | N/A. |
A_PDR_LATCHDATA |
Reserved. | N/A. |
A_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 blocks alarm priority. |
Low, Medium, or High. |
A_PRIM |
The blocks name. |
N/A. This is a display only field. |
A_RATDV |
The length of time to wait before re-issuing deviation alarms. |
Any time from 00:00:00:00 to 03:00:00:00 (up to 3 days, in the time format of dd:hh:mm:ss). |
A_RATHH |
The length of time to wait before re-issuing High High alarms. |
Any time from 00:00:00:00 to 03:00:00:00 (up to 3 days, in the time format of dd:hh:mm:ss). |
A_RATHI |
The length of time to wait before re-issuing High alarms. |
Any time from 00:00:00:00 to 03:00:00:00 (up to 3 days, in the time format of dd:hh:mm:ss). |
A_RATLL |
The length of time to wait before re-issuing Low Low alarms. |
Any time from 00:00:00:00 to 03:00:00:00 (up to 3 days, in the time format of dd:hh:mm:ss). |
A_RATLO |
The length of time to wait before re-issuing Low alarms. |
Any time from 00:00:00:00 to 03:00:00:00 (up to 3 days, in the time format of dd:hh:mm:ss). |
A_RATOT |
The length of time to wait before re-issuing other alarms. |
Any time from 00:00:00:00 to 03:00:00:00 (up to 3 days, in the time format of dd:hh:mm:ss). |
A_RATRC |
The length of time to wait before re-issuing Rate of Change alarms. |
Any time from 00:00:00:00 to 03:00:00:00 (up to 3 days, in the time format of dd:hh:mm:ss). |
A_RCALM |
The current alarm status for Rate of Change alarms. |
N/A. This is a display only field. |
A_RCPRI |
The alarm priority for Rate of Change alarms. |
Low, Medium, or High. |
A_ROC |
The maximum, acceptable change in the blocks value that can occur between scan periods. |
A numeric value within the EGU range. |
A_SA1 |
The security areas assigned to the block. |
Up to three security area names. |
A_SCALE_CLAMP |
Whether the data received or sent will be limited to the ranges specified in the following fields:
|
Yes (1) or No (0). |
A_SCALE_ENABLED |
Whether linear scaling is enabled. |
Yes (1) or No (0). |
A_SCALE_HIGH |
The high limit of the sent values. |
A numeric value. |
A_SCALE_LOW |
The low limit of the sent values. |
A numeric value. |
A_SCALE_RAWHIGH |
The high limit of the received values. |
A numeric value. |
A_SCALE_RAWLOW |
The low limit of the received values. |
A numeric value. |
A_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 blocks 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 blocks name. |
N/A. This is a display only field. |
A_TARG |
The blocks optimum value or block and field name followed by:
|
Block.field or a numeric value within the EGU range. |
A_TRTAG |
The blocks deviation alarm limit. |
A numeric value within the EGU range. |
A_TYP1 |
Text describing each type of alarm the block generates. |
Up to 3 characters. |
A_WARM |
Yes or No. |
N/A. This is a display only field. |
A_ALMACK |
Reserved. | N/A. |
A_ALMCHANGE |
Reserved. | N/A. |
A_ALMDELETE |
Reserved. | N/A. |
A_ALMGEN |
Reserved. | N/A. |
A_ALMRESET |
Reserved. | N/A. |
A_ALMUPDATE |
Reserved. | N/A. |
A_PUBLISH |
Reserved. | N/A. |
A_WRITABLE |
Reserved. | N/A. |