• Es ist ein FB Baustein aus Tia Portal "Zeitrelais AUS-verzögerung" es wird ein echter Zeitrelais AUS-verzögerung damit Simuliert es soll als Box oder CD hülle ähnlichem dargestellt da es nur als Download ja verfügbar ist Siemens LOGO Schrift weglassen
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Time relay OFF-delay

€3,95 EUR
€3,95 EUR
Sale Sold out
Description

The FB_OffDelayRelayTOF function block combines a turn-off delay (TOF) with NO/NC contacts for main and auxiliary circuits. It offers reset, deactivation, and simulation modes, as well as simple fault detection. The outputs are switched depending on the input signal and the delay logic, taking into account turn-off delays.

Note: This module is intended as a template. Before productive use, it must be integrated into the respective control system, tested, and released by qualified personnel. Improper integration may lead to unexpected behavior.

How it works
Reset

Resets all outputs, clears the elapsed time, and deactivates the timer. Errors are cleared.

Disabled

If #Enable is not set, all outputs remain off, the time is reset and an error is signaled.

simulation

The logic is running in a simulated mode: It is assumed that the delay has completely expired without affecting real outputs. The status and diagnostic code indicate simulation operation.

Normal operation

The TOF timer processes the input signal. After shutdown, the NO/NC contacts are switched with a delay according to the logic. The current elapsed time is displayed, and errors are reset.

Technical details
  • Inputs: #Enable , #Reset , #SimMode , #Coil_A1 , #PT
  • Timer: #tofInst (TOF, switch-off delay)
  • Contacts: Main and auxiliary contacts #Klemme13/14 , #Klemme21/22 , #Klemme31/32 , #Klemme41/42
  • Feedback: #ET (past time)
  • Status & Diagnosis: #Error , #Status , #DiagnosticCode
  • Diagnosis codes (selection):
    • 0 – OK
    • 1002 – Disabled
    • 1004 – Simulation mode active
Possible applications
  • Integration into time-dependent switching sequences for delayed shutdown after prior testing
  • Pre-validation of shutdown sequences in simulation mode
  • Support in detecting state deviations through delayed feedback
  • Linking of main and auxiliary contacts for traceable shutdown states

Note: Before use in productive operation, a complete technical acceptance and release by qualified specialist personnel is required.

compatibility
  • Siemens S7-1200 & S7-1500 controllers
  • Suitable for TIA Portal with SCL support
  • Integration into higher-level control architectures possible
  • Testable in simulation mode without real actuators
Scope of delivery

You receive:

  • An SCL file with implemented function block
  • Complete declaration of all inputs and outputs as well as timer instance
  • Annotated structure for quick adaptation
  • Quick guide for integration into a TIA project

The download link will be provided after purchase.

Support

I am happy to support you with:

  • Adjustment of delay time and operating logic
  • Integration into higher-level control processes or HMI
  • Interpretation of status and diagnostic information
  • Special adaptations for specific applications

Contact is possible via shop message or email. Customized adjustments are available as an option.