User`s guide

CAN Unpack
14-41
• Standard: The signal is unpacked at each timestep.
• Multiplexor: The Multiplexor signal, or the mode signal is unpacked. You can
specify only one Multiplexor signal per message.
• Multiplexed: The signal is unpacked if the value of the Multiplexor signal
(mode signal) at run time matches the configured Multiplex value of this signal.
For example, a message has four signals with the following values.
Signal Name Multiplex Type Multiplex Value
Signal-A Standard N/A
Signal-B Multiplexed 1
Signal-C Multiplexed 0
Signal-D Multiplexor N/A
In this example:
• The block unpacks Signal-A (Standard signal) and Signal-D (Multiplexor signal)
in every timestep.
• If the value of Signal-D is 1 at a particular timestep, then the block unpacks
Signal-B along with Signal-A and Signal-D in that timestep.
• If the value of Signal-D is 0 at a particular timestep, then the block unpacks
Signal-C along with Signal-A and Signal-D in that timestep.
• If the value of Signal-D is not 1 or 0, the block does not unpack either of the
Multiplexed signals in that timestep.
Multiplex value
This option is available only if you have selected the Multiplex type to be
Multiplexed. The value you provide here must match the Multiplexor signal
value at run time for the block to unpack the Multiplexed signal. The Multiplex
value must be a positive integer or zero.
Factor
Specify the Factor value applied to convert the unpacked raw value to the physical
value (signal value). See “Conversion Formula” on page 14-43 to understand how
unpacked raw values are converted to physical values.
Offset