SIEMENS SIMATIC S7 PC Adapter USB

Purpose: Connection PC or Laptop (via USB) directly to the PLC via MPI, PROFIBUS, PPI PLC: S7-200, S7-300, S7-400, C7 Order no.: 6ES7972-0CB20-0XA0 Limitation: Need Power Supply 24V DC via PLC interface (can be fixed) Limitation: The PC Adapter USB supports transmission rates only up to 1.5 Mbps Package: USB cable (5 m), MPI cable (0.3 m), CD "SIMATIC Software PC Adapter USB" Price: 330 €

Table — Transmission rates and network types supported by the PC Adapter USB

SIEMENS SIMATIC NET CP 5711 Communications Processor (PROFIBUS interface via USB 2.0)

Purpose: Connection PC or Laptop (via USB) directly to MPI, PROFIBUS, PPI Purpose: Connection to Step 7 PLC, OP/TP/MP Order no.: 6GK1571-1AA00, 6GK1571-1AM00 (with MPI cable 5 m) Advantage: The CP 5711 supports all transmission rates up to 12 Mbps. Advantage: Not need external power supply, recives power from the USB port. Package: USB cable (2 m), 2-pin plug-in terminal strip for external 24 V power supply, (MPI cable 5 m for 6GK1571-1AM00) Price: 730 €

IBH Link S7++ (PROFIBUS interface via Ethernet)

Purpose: Connection PC or Laptop (via Ethernet) directly to MPI, DP, PPI Purpose: Connection to Step 7 PLC, OP/TP/MP Order no.: 20266 (IBHsoftec) Advantage: The IBH Link S7++ supports all transmission rates up to 12 Mbps. Advantage: The IBHNet driver enables you to gain direct variable access via standard programming languages like Visual Basic or Delphi Limitation: Needs Power Supply 24V DC via PLC interface or external power supply Limitation: Don't work with SIRIUS 3RK3 Modular Safety System via Profibus interface Package: 2-pin plug-in terminal strip for external 24 V power supply Price: 399 €