Vervangen VAX door PLC

Description of the project:
An old VAX that drove the present conveyor installation and valves has been replaced by a PLC and PC control (Visual Basic).

4 S5 PLCs controlled by the old VAX are now integrated as profibus islands in a new S7 configuration. The control of the valves has also been taken over by the new S7 PLC.
The whole is viewed in VB. The topmost layer, communication with ERP layer, is also written in VB.

Production continues to run throughout the day and programmings are tested at night. After a few weeks of night tests the system is up and ready to start operations.

Configuration

Advantages of the system:
- Old VAX was due for replacement
- Exchangability of parts
- Reliability
- Viewing
- Logging and monitoring
- Tracking and tracing of all pallets
- Extensive diagnosis and alarm reports 

Automation Elements:
- Engineering and Monitoring 
- Electrical Diagrams 
- Electrical Panels
- Electrical Installation 
- Software PLC 
- Viewing 
- Software server PC 
- I/O tests and start-up

Technical Specifications 
- Main control PLC: Siemens S7-416-2dp 
- Bus system: Profibus 
- Network: Ethernet 
- Decentralized I/O: via 4 S5 115U PLC’s 
- Viewing PC: Visual Basic 
- MES: Visual Basic 
- Control of 6 valves via RS232 
- Read-in of 2 barcode scanners via RS232