master:tdelay parametersPSCAD Delay

Every parameter of the PSCAD Delay (master:tdelay): 8 names, with the unit, the default and the meaning PSCAD gives each one. Copy a name into parameters().

What master:tdelay is

Delay (Delay Function), a component of PSCAD's Master Library, filed under control blocks.

Definition
master:tdelay
PSCAD name
Delay
Category
Control blocks
Parameters
8, in 1 group; 1 carry a unit
Read from
PSCAD 5.0.0, 2026-11-07

Read and write master:tdelay in Python

import mhi.pscad

pscad = mhi.pscad.connect()              # the PSCAD that is open; launch() starts one
project = pscad.project("my_case")       # a case loaded in the workspace

for comp in project.find_all("master:tdelay"):   # the exact definition, namespace first
    params = comp.parameters()           # every parameter, as PSCAD holds it
    print(str(params["T"]))              # Time Delay, in s

comp = project.find_all("master:tdelay")[0]
comp.parameters(T="2 [s]")               # a value that carries a unit is written with it
  • A parameter is named exactly as in the table, letter case included: parameters() gives every one of them in a dictionary, and a name the component does not have is refused.
  • A value that carries a unit comes back as a number whose unit is only in its text, so read it as text first (str(...)) or the unit is lost. PSCAD keeps a written unit as it is given: "2500 [mohm]" stays in mohm.
  • A Choice is read and written as its symbol (the capitals in "Written as"), not as the words PSCAD shows in the dialog.
  • find_all() takes the exact definition only. A wildcard or a bare name without master: comes back empty; the Builder's px_find walks the pages for those.

The Builder's runtime does the same with the unit handled for you: px_get(comp, "T") and px_set(...), which also records the old value so the case is put back at the end. Getting started shows them.

Configuration

ParameterUnitDefaultDescription
COMText·DelayFortran CommentOptional comment line written to generated source code
DimInteger·1DimensionEnter the dimension of input/output signalsRange 1 to 2147483647
InitChoice·INPUT_AT_TIMEZEROInitialize Buffer Withvalues in the buffer at t=0, could be filled with either a specified value or the input at t=0Written as INPUT_AT_TIMEZERO (input at timezero), SPECIFIED_VALUE (specified value)
IntpChoice·NOInterpolate OutputIf the number of samples is less, output could be generated from interpolating the samples in the bufferWritten as NO (No), YES (Yes)
NInteger·100Number of Samples in Delay TRange 1 to 10000
NameText··Name for IdentificationEnter a name for identification
TReals1.0Time DelayRange 0 to 1000
X0Real·0.0Initializing ValueValue to initialize the bufferUsed when (Init==1)

Related

← master:deadband Deadband Controller · master:Zdelay Delay →