FB: Enable/Disable Button - v2.0

This function block manages an enable/disable toggle state driven by a physical button, HMI button, or internal IT signals.

Use Cases

• Physical pushbutton that toggles an output (e.g., conveyor enable).
• Allowing both panel button and HMI screen to enable/disable a function.
• IT-triggered forced enable or disable from program logic.

Dependencies

Type	Name	Version
data type	escOutput	v2.2

Parameters

Function

Parameter	Declaration	Type	Init. value	Description
DI_button	Input	Bool	—	IR: Physical button — toggles enabled on positive edge
IT_enable	Input	Bool	—	IR: Positive edge sets enabled := 1
IT_disable	Input	Bool	—	IR: Positive edge sets enabled := 0
HMI_button	Input	Bool	—	IR: HMI button — toggles enabled on positive edge
DO_enableLamp	Output	Bool	—	OR: 1= Enable lamp on
DO_disableLamp	Output	Bool	—	OR: 1= Disable lamp on
enabledPulseOn	Output	Bool	—	OR: Positive edge pulse when enabled transitions to 1
disabledPulseOn	Output	Bool	—	OR: Positive edge pulse when enabled transitions to 0
enabled	In/Out	Bool	—	IOX: Current enable/disable state: 0= Disabled; 1= Enabled
esc	In/Out	escOutput	—	IOX: Emergency Stop Circuit output data
clock	In/Out	Byte	—	IOX: System clock byte