Create a Calculation Collector

Before you begin

  1. Deploy Proficy Historian for AWS.
  2. Install collectors. You can install them on-premises or on a VPC (which can be different from the one on which Proficy Historian for AWS is deployed).

About this task

The Calculation collector performs calculations on tag data that is stored in Data Archiver. It stores the calculation results in new tags. You can then access this data and plot a trend chart or analyze it.
Features: The Calculation collector performs calculations on the following values:
  • Current values of other Historian tags in the same archiver.
  • Previous raw samples of other tags in the same archiver.
  • Calculated values of other Historian tags in the same archiver, such as minimum, maximum, average, or standard deviation. You can specify a time range for these calculations or perform a filtered query. You can use the resulting single number in a calculation.
  • Interpolated values of other Historian tags in the same archiver.
  • Any data retrievable using a VBScript, file I/O, ADO, and so on.
Advantages of using the Calculation collector:
  • The Calculation collector can keep a history of the calculated values.
  • It can perform thousands of calculations per second. Therefore, it is generally preferred to a VB SDK program performing the same functions.
  • It can perform calculations on data stored in the following sources:
    • A SCADA database (such as iFIX)
    • A VB SDK program
    • A Historian collector (using input scaling)
    • By the Calculation collector
    • The Historian OLE DB provider
    • Reporting tools such as Crystal Reports
    • The Historian Excel Add-In

Procedure

  1. Run Command Prompt as an administrator.
  2. Run the CloudHistorianConfigurationUtility.exe file. It is provided along with the collectors installer. After you install collectors, it will be available in the C:\Program Files\GE Digital\Historian Cloud Config folder by default.
  3. Enter the number corresponding to creating a collector instance.
    A list of collectors that you can create appears.
  4. Enter the number corresponding to the collector that you want to create.
  5. Enter the following details:
    Field Description
    Interface Name Enter the name that you want to provide for the collector instance. A value is required and must be unique in the DNS.
    NLB DNS

    Enter the Amazon Network Load Balancer (NLB) DNS. A value is required.

    Tip: To find the NLB DNS:
    1. Access the EKS cluster on which you have deployed Proficy Historian for AWS.
    2. Access the EC2 instance.
    3. In the navigation pane, under Load Balancing, select Load Balancers.
    4. Select the load balancer for which you want to find the DNS.
    5. In the Description section, copy the DNS name.
    Username Enter the username to connect to Proficy Historian for AWS. A value is required.
    Password Enter the password to connect to Proficy Historian for AWS. A value is required.
    Tip: For the default user, ihCloudHistAdmin, this is the value you entered in the Password field under UAA Configuration when you created the stack.
    The Calculation collector is created and started.