Regex

You can use regular expressions (regex) to define mappings for each destination in a route. A common use case is mapping multiple signal names from an OPC UA or ADS namespace.

For example, suppose we want to map the ADS signals GVL.Weight1 and GVL.Consumption2 to Extruder-Weight-1 and Extruder-Consumption-2, respectively. This can be achieved using a single regular expression with two capturing groups: one to match the signal name (Weight or Consumption) and another to match the trailing number.

The regular expression for this case is /GVL\.(.*)(\d)/. Capturing groups can be referenced using the ${N} syntax, where N is the index of the group starting from 1.

In our example, the mapping value is defined as Extruder-${1}-${2}, where:

• ${1} captures the signal type (Weight or Consumption)
• ${2} captures the trailing number (1 or 2)

A helpful tool for testing and creating regular expressions is regexr.com.