Example 2 — Create a new sequence

This example demonstrates how to create a new sequence by copying an existing one.

Sequences are defined in the sequences folder of the AVEVA Real-Time System (RTS) installation. Each sequence has its own subfolder in the sequences folder. See Sequence folder structure for more information.

Create a new sequence

1. Open File Explorer and browse to the sequences folder of the RTS installation.

2. Copy the sequence_basicsample subfolder and give it another name, such as sequence_mysequence.

3. In the sequence_mysequence folder, open the cycle_script.csx file in a text editor.

   Consider the structure of this file:

   bool Init()

   {

   Log.Information($"From Init event for sequence: {SequenceName}, HistTimestamp: {HistTimestamp}");

   return true;

   }

   bool Run()

   {

   Log.Information($"From Run event for sequence: {SequenceName}, HistTimestamp: {HistTimestamp}");

   return true;

   }

   bool Shutdown()

   {

   Log.Information($"From Shutdown event for sequence: {SequenceName}, HistTimestamp: {HistTimestamp}");

   return true;

   }

   The Init, Run, and Shutdown functions are Events that the ScriptRunner invokes, in that order. The contents of the functions support most C# syntax. See Cycle script files for details.

4. Edit the cycle_script.csx file in the sequence_mysequence folder.

   For example, add the following line in the Run() Event:

   Log.Information($"I made this change.");

5. Open the RTS shell.

   See Open the AVEVA Real-Time System shell to run commands for more information.

6. Enter the following command:

   rts run mysequence

   You should see the updated text in the shell and log files.

   You don't need to restart RTS after you update sequence scripts or create new sequences.