AlarmNextTagRec

Searches for the next occurrence of an alarm tag, name, and description, starting with the alarm record identifier (returned from the previous search through the AlarmFirstTagRec() function). 

This function returns an alarm record identifier that you can use in other alarm functions, for example, to acknowledge, disable, or enable the alarm, or to get field data on that alarm.

This is a blocking function. If the function is called from a foreground task that is unable to block, the return value will be -1 and a hardware alarm set. Use IsError() to retrieve the error code.

For complex filtering operations it is more efficient to use the alarm tag browse functions AlmBrowseOpen and AlmBrowseNext.

Syntax

LONG AlarmNextTagRec(LONG Record, STRING Tag, STRING Name, VDescription [,STRING ClusterName] )

Record:

The alarm record number, returned from any of the following alarm functions:

• AlarmFirstCatRec() or AlarmNextCatRec() - used to search for a record by alarm category, area, and type (acknowledged, disabled, etc.).
• AlarmFirstPriRec() or AlarmNextPriRec() - used to search for a record by alarm priority, area, and type (acknowledged, disabled, etc.).
• AlarmFirstTagRec() or AlarmNextTagRec() - used to search for a record by alarm tag, name, and description.
• AlarmGetDsp() - used to find the record that is displayed at a specified AN, for either an alarm list or alarm summary entry. Set the sField argument in AlarmGetDsp() to "RecNo".

To store this value, use data type Int in Cicode or Long for variable tags (Long needs 4 bytes).

Tag:

A string that identifies the tag to be matched. It can be one of the following:

• An alarm tag — for example, "Fire1"
• An alarm equipment item — for example, "Motor1.AlarmFire"

Specify an empty string (" ") to match all alarm tags.

Name:

The alarm name to be matched. Specify an empty string (" ") to match all alarm names.

Description:

The alarm description to be matched. Specify an empty string (" ") to match all alarm descriptions.

ClusterName:

Specifies the name of the cluster in which the Alarm Server resides. This is optional if you have one cluster or are resolving the alarm server via the current cluster context. The argument is enclosed in quotation marks "".

Return Value

The alarm record identifier or -1 if no match is found.

Related Functions

AlarmFirstTagRec, AlarmGetFieldRec, AlarmAckRec, AlarmDisableRec, AlarmEnableRec, AlarmGetDelayRec, AlarmGetThresholdRec, AlarmSetThresholdRec, AlmBrowseOpen, AlmBrowseNext

Example

See AlarmDisableRec.

See Also

Alarm Functions

Published June 2018