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Controlling Regulators using TVD Connectors (SWMM)

TSD functionality is only available if the TSD option is enabled on your licence.

TVD Connectors can be used to provide a link between data streams in a Scalar time series data (TSD) object and a Regulator. The data stream profiles are used as an input to a regulator object to control the regulator.

To use TVD connectors to control the status of a regulator:

  • Ensure that the TVD connector ID is the same as the name of the time series in the SWMM Control Rule.
  • Set the Input A units type to FRAC. The Input B units type, Input C units type and Output units fields will automatically be set to FRAC.
  • Set Input A to the ID of a data stream in the applicable scalar TSD or to another TVD connector. Set the Input B and Input C if required.
  • Set Connection object type to the applicable regulator object - pump, orifice, outlet or weir.

The values provided by the TSD data streams will then be used to control the regulator.

Regulator output units

The output units required for different regulator types are listed below:

Regulator type

Regulated variable

Unit type
Pump On/off status, and pump speed Frac - Fraction
Orifice Opening size Frac - Fraction
Weir Crest level Frac - Fraction
Outlet Flow Frac - Fraction

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