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Description
Application Scenarios
A regional beverage bottling plant was running a 15-year-old SIMATIC S7-400 line controlled by CPUs with only MPI and Profibus DP ports. Corporate IT mandated that all process assets be accessible via the plant-wide Ethernet MES network for OEE tracking and remote diagnostics. Retrofitting the entire control system was cost-prohibitive. By installing the 700-443-0TP01 into the S7-400 rack and connecting it to the existing CAT5e infrastructure, the maintenance team enabled PG/OP communication over TCP/IP, established S7 PUT/GET data links to a new S7-1500 gateway, and gave the SCADA server direct access—all without modifying the existing control logic. The pain point of “MPI-only legacy CPUs blocking digitalization” was solved with a single-slot, plug-and-play Ethernet interface that preserved the original automation investment.Every time the model is referenced: 700-443-0TP01
Parameter
| Main Parameters | Value/Description |
|---|---|
| Product Model | 700-443-0TP01 (Alternate: S7-TCP/IP 200-8000-01) |
| Manufacturer | Siemens-compatible / INAT-type Industrial Ethernet Interface (OEM Partner Grade) |
| Product Category | Ethernet Communication Processor / Interface Module |
| Compatible PLC Systems | SIMATIC S7-300, S7-400 (backplane slot); S7-200 via MPI-gateway variants |
| Network Interface | 1 × RJ45 (10/100 Mbps auto-negotiation, some versions 2× RJ45 with switch function) |
| Supported Protocols | S7 Communication (RFC1006 ISO-on-TCP), TCP/IP, UDP, Fetch/Write, Send/Receive, Modbus TCP (selected fw) |
| ISO-on-TCP Connections | Up to 16–64 simultaneous connections depending on firmware revision |
| Backplane / Supply Voltage | 5 V DC from S7 rack backplane + 24 V DC ext. (typical 19.2–28.8 V DC for standalone types) |
| Power Consumption | Typ. 1.8 W (5 V); ≤ 3 W total |
| Operating Temperature | 0 °C to +60 °C (some versions -20 °C to +60 °C) |
| Installation Method | 35 mm DIN rail (external unit) or S7-300/400 rack slot mount (CP version) |
| Indicators | PWR, RUN, Link/Act, Error LEDs for diagnostics |
| Protection Class | IP20 (cabinet installation) |
| Dimensions (approx.) | 120 × 100 × 30 mm (external type) / Standard S7-300 module width (rack type) |
Technical Principles and Innovative Values
Innovation Point 1 — CPU-offloaded protocol stack: The 700-443-0TP01 contains a dedicated microprocessor that manages the full TCP/IP stack, ISO-on-TCP encapsulation, and S7 communication handshake independently of the PLC CPU. This prevents communication traffic from extending the PLC scan time, which is critical in high-speed process loops.Innovation Point 2 — Native S7 RFC1006 over TCP/IP: Unlike generic serial-to-Ethernet converters, the 700-443-0TP01 speaks the Siemens S7 protocol natively over ISO-on-TCP (Port 102). This means no middleware, no protocol translation layer, and full compatibility with STEP 7 PG access, WinCC channels, and S7-1500 cross-communication using BSEND/BRCV or PUT/GET—configured entirely in the HW Config.Innovation Point 3 — Multi-connection parallel session management: The module sustains multiple simultaneous sessions—programming devices, HMIs, SCADA, and peer PLCs—without session drop or reconnection delays. This allows one 700-443-0TP01 to serve an entire engineering workstation, an HMI panel, and a higher-level MES link concurrently.Innovation Point 4 — S7 Routing and cross-network diagnostics: When configured as an S7 router, the 700-443-0TP01 permits a PG connected to the plant Ethernet to reach CPUs on remote MPI or Profibus subnetworks, dramatically simplifying multi-segment troubleshooting without on-site visits.
Application Cases and Industry Value
In a mid-size German automotive stamping plant, three S7-400 press-line controllers originally communicated only via MPI to a local panel PC. After corporate IT introduced a segmented Industrial Ethernet backbone, the plant retrofitted each S7-400 rack with a 700-443-0TP01. Within one shift, all three presses were online to the central WinCC SCADA, and the engineering team could perform remote firmware uploads and online monitoring from the office network. Downtime previously caused by traveling to the press line for diagnostics dropped by an estimated 40 %. The plant extended the useful life of its proven S7-400 control architecture while meeting modern connectivity KPIs—at a fraction of the cost of a full PLC migration.In a water/wastewater treatment facility in Southeast Asia, several S7-300 stations needed to push flow-rate and pump-status data to a cloud-based IoT dashboard via a local edge gateway. The site installed the 700-443-0TP01 on each CPU rack, opened S7 Fetch/Write ports to the edge gateway, and achieved real-time data publishing without altering the validated control programs. Operations staff reported zero scan-time impact and simplified cabling compared to adding separate serial gateways.
