FB_BA_BO_IO

The FB_BA_BO_IO function block represents a binary output object within the base framework. The variables for linking the switching output to the terminal are declared within the function block. The feedback control of the binary output is automatically activated if the bRawValFeedback variable is linked to the process image of a terminal.

Inheritance hierarchy

FB_BA_Base

Syntax

FUNCTION_BLOCK FB_BA_BO_IO EXTENDS FB_BA_BaseBO IMPLEMENTS I_BA_RawBO
VAR_INPUT CONSTANT PERSISTENT
  {region 'Variable Parameters'}
    {attribute 'parameterCategory':='Config'}
    ePolarity                  : E_BA_Polarity := E_BA_Polarity.eNormal;
    {attribute 'parameterCategory':='Config'}
    eFeedbackPolarity          : E_BA_Polarity := E_BA_Polarity.eNormal;
    {attribute 'parameterCategory':='Config'}
    eOverriddenPolarity        : E_BA_Polarity := E_BA_Polarity.eNormal;
  {endregion}
END_VAR
VAR
  {region 'Raw I/O'}
    bRawOverridden    AT %I*   : BOOL
    bRawValFeedback   AT %I*   : BOOL
    bRawVal           AT %Q*   : BOOL;
  {endregion}
END_VAR

Inputs Constant Persistent

Name	Type	Description
ePolarity	E_BA_Polarity	The polarity of the sensor must be set at this input. The setting is made by selecting the type in the enumeration.
eFeedbackPolarity	E_BA_Polarity	Variable for parameterizing the polarity of the binary operating feedback of an output.
eOverriddenPolarity	E_BA_Polarity	Output terminals with mechanical priority operation report the state of their switches back to the controller. With this enumeration the polarity of the switch feedback can be parameterized.

Name

Type

Description

ePolarity

E_BA_Polarity

The polarity of the sensor must be set at this input. The setting is made by selecting the type in the enumeration.

eFeedbackPolarity

E_BA_Polarity

Variable for parameterizing the polarity of the binary operating feedback of an output.

eOverriddenPolarity

E_BA_Polarity

Output terminals with mechanical priority operation report the state of their switches back to the controller.

With this enumeration the polarity of the switch feedback can be parameterized.

VAR

Name	Type	Description
bRawOverridden	BOOL	Variable for detecting an override from the outside.
bRawValFeedback	BOOL	Activation of feedback control after linking with the bus terminal.
bRawVal	BOOL	Variable for linking the output value to the terminal.

Requirements

Development environment	Required PLC library
TwinCAT from v3.1.4024.35	Tc3_XBA from v5.3.0.0