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Door control with numeric code

€4,90 EUR
€4,90 EUR
Sale Sold out

Description
You are looking for an SCL function block for door release via numeric keypad with code verification, time-controlled release, failed attempt counting, and locking logic. It can be run directly in the Siemens TIA Portal for flexible and secure access control.

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

  1. Step 1: Emergency stop active or time release missing → Reset door release and LEDs, stop timer, RETURN
  2. Step 2: Edge detection of the OK button → only react to rising edge
  3. Step 3: Code comparison
  4. correct → release door, OK LED on, reset attempt counter, start timer
  5. wrong → error LED on, attempt counter++, trigger alarm after 3 attempts
    Reset edge after releasing the OK button
  6. Step 4: Time-controlled reset → Timer expired → Reset door release and OK LED, stop timer

Technical details
• Inputs: Emergency stop, time release, keyboard inputs, OK button (cyclic)
• Timer #TimerRelease (PT=T#5s) for release duration
• Variable #VersuchCounter counts failed attempts, from 3 → #Alarm
• Edge detection via internal Bool #AcknowledgeEdge
• RETURN in case of security breach interrupts logic immediately

Possible applications
• Access control in industrial and office buildings
• Retrofitting existing locking systems with time-controlled release
• PLC training on access concepts
• Live demos at trade fairs and in training labs

compatibility
• Siemens S7-1200 & S7-1500
• TIA Portal V13 and higher; recommended V16+ for HMI integration and PLCSIM

Scope of delivery
• .scl file with input/output declarations, internal variables and release timer
• Download link directly after purchase

Support
I'm happy to adapt the module to other keyboard layouts, additional authentication methods, network logging, or remote monitoring, and I can provide support with HMI integration. Feel free to contact me anytime via shop message or email.