FB Function Block: BLINK - Simulating Blinking Signals in Automation

The 'BLINK' Function Block (FB) is designed to simulate a blinking signal by switching the output value between 'TRUE' and 'FALSE' for specific durations. This block is commonly used in automation systems for visual indication or signaling purposes.

Inputs:

• 'ENABLE' (BOOL): Controls the blinking functionality. When 'TRUE', the blinking starts. When 'FALSE', the blinking stops, and the 'OUT' value retains its current state.
• 'TIMELOW' (TIME): Defines the duration for which the 'OUT' value will be 'FALSE'.
• 'TIMEHIGH' (TIME): Defines the duration for which the 'OUT' value will be 'TRUE'.

Output:

• 'OUT' (BOOL): Represents the current output value. The 'OUT' value starts at 'FALSE' and cycles between 'TRUE' and 'FALSE' according to the specified 'TIMELOW' and 'TIMEHIGH' durations.