Connections and variables - Grid automation - Engineering Manual - REC615 Grid Automation Protection and Control - RER615 Grid Automation Protection and Control - Relion 615 series - 2.0 - IEC - ANSI - 28.04.2023

REC615 and RER615 Engineering Manual

A connection is the link or "wire" between function block outputs and inputs.

There are rules and methods for making connections.

  • Drag a line between two signals
  • Link two signals by using variables
Note: It is possible to search and replace variable names in Application Configuration tool.
Note: Connect the variables to a destination, for example to a function block or a hardware output channel. The connectivity package automatically removes the orphan variables which are not connected to any destination.

Connection validation

A connection is only useful or even possible between two signals of the same base attribute type.

Figure 1. Application Configuration tool: an error message of a signal mismatch for a connection
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