Operations/Calculations

TopView's data sources provide data values that can be monitored for abnormal values and/or behavior. 

TopView Operations allow the user to manipulate the retrieved data values through a set of built-in logic and calculations. The operation result can then be monitored in the same manner as a raw data value.

TopView Operations can be used to

• Perform calculations, logic and mathematical operations on a monitored tag’s value

• Evaluate PI Expressions using PI Performance Equation syntax (TopView PI)

• Count the number of alarms occurring for another tag/row/group over a time period

• Count the number of active alarms in a tag/row/group

Supported Operations include

• Bit masking

• Alarm counts (current) and totals (over time)

• Add, subtract, multiply, divide, and delta between current tag and a number or second tag

• Time-based average, min, max, range, rate-of-change, standard deviation

• Square root and log of the current tag

• PI Expressions

• String search (for string/character tag values)