Technical data

The RTW TLC Function Library
3-23
they generate different results depending on whether RTW is in a loop-rolling
state, or a non loop-rolling state, respectively.
Loop rolling is fully described later in this chapter. In short, however, this
function looks at
ucv, lcv, and sigIdx, and the RTW state to determine the
return value. The variable
ucv has highest precedence, lcv has the next
highest precedence, and
sigIdx has the lowest precedence. That is, if ucv is
specified, it will be used. If
ucv is not specified and lcv and sigIdx are
specified, the returned value depends on whether or not RTW is currently
rolling. If RTW is currently in a loop rolling state,
lcv is used, otherwise sigIdx
is used. If neither
ucv or lcv are not specified, sigIdx is used. For an example
of this function, see
gain.tlc.
LibBlockInputSignal(portIdx, ucv, lcv, sigIdx)
The behavior of this function is similar to LibBlockOutputSignal, except it
returns the appropriate reference to a block’s input signal. For example,
For an example of this function, see
gain.tlc.
LibBlockParameter(param, ucv, lcv, sigIdx)
The behavior of this function is similar to LibBlockOutputSignal, except it
returns the appropriate reference to a block’s parameter. The function can only
be used for parameters of type
Scalar or Vector. For example,
Function May Produce
LibBlockInputSignal(0, "i", "", sigIdx) rtB.blockname[i]
LibBlockInputSignal(0, "", lcv, sigIdx) u0[i1]
LibBlockInputSignal(0, "", lcv, sigIdx) rtB.blockname[0]
Function May Produce
LibBlockParameter(Gain, "i", "", sigIdx) rtP.Gain[i]
LibBlockParameter(Gain, "", lcv, sigIdx) p_Gain[i1]
LibBlockParameter(Gain, "", lcv, sigIdx) rtP.Gain[0]
LibBlockParameter(Gain, "", lcv, sigIdx) 2.5