• Es ist ein FB Baustein aus Tia Portal "Leistungsschutzschalter" es wird ein echter Leistungsscgutzschalter damit Simuliert es soll als Box oder CD hülle ähnlichem dargestellt da es nur als Download ja verfügbar ist Siemens LOGO Schrift weglassen gerne auf englich
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Circuit breaker

€6,90 EUR
€6,90 EUR
Sale Sold out
Description

The FB_LS_Schalter function block simulates the behavior of an electronic miniature circuit breaker with self-tripping. It monitors a current value ( #Current ) against a defined tripping threshold ( #IMax ) and trips when it is exceeded. The tripping is maintained (self-maintained) until a reset occurs. Feedback via normally closed ( #NO_14 ) and normally open ( #NC_22 ) contacts can optionally be influenced by hardware inputs, and in simulation mode, the behavior can be tested without a real load.

Note: This logic is intended as a template. It must be integrated, tested, and approved by qualified personnel before productive use. Improper use may result in unexpected behavior or false triggering.

How it works
Reset

#Reset resets the tripped state ( #tripped ) so that the circuit breaker can be switched again.

Disabled

If #Enable is not set, both outputs are inactive. No error is reported, but the block displays a disabled status.

simulation

In simulation mode, triggering is determined directly based on the current ( #Current ) against the threshold ( #IMax ). The contacts reflect the state:

  • #NO_14 is active as long as it has not been triggered.
  • #NC_22 shows the trigger.
Normal operation

In real operation, when the #IMax threshold is exceeded, the trigger state is set and maintained (self-maintaining), even if the current drops again. The contact outputs are only active if the corresponding feedback inputs are set:

  • #NO_14 (normally closed) only passes the non-triggered signal if #Input_13 is present.
  • #NC_22 (normally open) only shows the trigger if #Input_21 is set.

Errors are reset, status is OK.

Technical details
  • Inputs: #Enable , #Reset , #SimMode , #Current , #IMax , #Input_13 , #Input_21
  • Internal state: #tripped – held trip
  • Outputs: #NO_14 (normally closed), #NC_22 (normally open)
  • Feedback: Feedback via main contacts
  • Status & Diagnosis: #Error , #Status , #DiagnosticCode
  • Logic: Self-maintaining tripping when current is exceeded, reset to reset
Possible applications
  • Simulation and pre-testing of overcurrent protection mechanisms
  • Integration into control circuits with trigger monitoring
  • Visualization and diagnosis of trigger states via NO/NC feedback
  • Testing protection logic in simulation mode without real load

Note: A complete technical inspection and approval by qualified personnel is required before productive use.

compatibility
  • Can be used in PLC systems with SCL support (e.g. Siemens TIA Portal)
  • Modular integration into protection, process and diagnostic architectures
  • Simulation allows validation without real current load
  • Safe basic state when deactivated
Scope of delivery

You will receive:

  • An SCL file with the implemented function block FB_LS_Switch
  • Complete declaration of all inputs and outputs as well as internal states
  • Commented logic for quick adaptation
  • Short guide for integration into control projects

The download link will be activated after purchase.

Support

I am happy to support you with:

  • Adjustment of the trigger threshold and monitoring logic
  • Integration into higher-level protection and control systems
  • Simulation and validation before real operation
  • Analysis of trigger events and extensions

Contact is possible via shop message or email. Individual adjustments can be offered as customization.