• Es soll ein weisen hintergund sein und eine Box form wie eine DVD software box für einen FB Baustein "Zwei Hand Steuerung"! für Tia Portal "Siemens logo oder name darf nicht verwendet werden" an der seite dan www.plc-code.com kein DVD zeichen oder so auch keine SOftware als wort
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Two-hand start

€9,90 EUR
€9,90 EUR
Sale Sold out
Description

The FB_TwoHandStart function block ensures that an output is only activated when both buttons are pressed simultaneously within a defined time window. This reliably prevents unintentional or one-handed starting.

Note: All modules are designed exclusively as a learning and optimization basis and are not approved for live operation. System modules, in particular, must be finally tested and commissioned by qualified personnel before productive use.

How it works
First key press

If one of the two buttons is pressed and StartErkannt is not yet active, a TON timer starts with the set ZeitFenster duration and sets StartErkannt .

Both buttons pressed

If the user presses both buttons within the running timer and Freigabe is TRUE, AusgangAktiv is switched on.

Termination conditions

If one of the buttons is released or the timer runs out without both being pressed at the same time, AusgangAktiv is deactivated, the timer is stopped and StartErkannt is reset.

Technical details
  • XOR operation of the button inputs detects first key press
  • TON timer monitors the time window ( ZeitFenster )
  • AusgangAktiv only when:
    • both buttons pressed
    • Timer is running
    • Freigabe = TRUE
  • Automatic reset when timer expires or button is released
Mission
  • Simple two-hand controls in machines or systems
  • Meeting security requirements
  • Avoiding unintentional launches
compatibility
  • Siemens S7‑1200 & S7‑1500 controllers
  • TIA Portal from version V13
  • Simulation with PLCSIM possible from V16
Scope of delivery

You will receive an .scl file with:

  • Declaration of all inputs and outputs
  • Timer instance
  • Variable structure
Support

I am happy to support you with:

  • Adjusting the ZeitFenster
  • Change of release conditions
  • Integration into existing HMI layouts

Contact via shop message or email is possible at any time.