GPI - General purpose inputs

The GPI block (or its C++ routines) is responsible for reading the the logic states of the General Purpose Inputs (GPI) pins. This function allows the controller to read external digital signals efficiently.

Voltage logic levels, location and input counts are summarized in the reference table below, while detailed hardware specifications can be found within the associated product datasheet.

A comprehensive technical comparison of imperix’s programmable controllers is also provided in PN250.

Simulink block

Signal specification

The output signal returns the value of one GPI pin.

Parameters

• Device ID selects which B-Box/B-Board to address when used in a multi-device configuration.
• GPI pin(s) (vectorizable) a selection of GPI pin(s) to read. It can be a single value or a vector.
• Show simulation input port defines if the simulation input is displayed or not.

PLECS block

Signal specification

The output signal returns the value of one GPI pin.

Parameters

• Device ID selects which B-Box/B-Board to address when used in a multi-device configuration.
• GPI pin(s) (vectorizable) a selection of GPI pin(s) to read. It can be a single value or a vector.
• Simulation input port defines if the target inport is displayed or not. This parameter is only used in simulation.

C++ functions

int Gpi_GetBit(unsigned int bit, unsigned int device=0);Code language: C++ (cpp)

int Gpi_Get(unsigned int device=0);Code language: C++ (cpp)