The function block LightControl is the control for the on and off interval of the light. The user can set the interval for how long the light should be on and off, and see how much time is left of the current interval. Here comes the input for the light override as well. The function block also gives out the status of the light. So, if the light is overridden off or on, or if the light is auto off or on.

Override light

Light states

With everything explained the Inputs and Outputs are the following,

INPUT

• Start → BOOL
• lightOnTime → TIME
• lightOffTime → TIME
• override → INT

OUTPUT

• OUT → BOOL
• CDPout→ INT
• TimeRemainingOn → TIME
• TimeRemaningOff → TIME

Intern Variables

• TimerLightOff → TON
• TimerLightOn → TOF
• Light → LIGHT

CODED SOLUTION

Variable Decleration:

CODE: