Digital guide
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Siemens 505-CP2572
Product Name: SIMATIC 505 / TI505 Ethernet Communication Coprocessor Module
Introduction: This module provides dedicated TCP/IP, UDP and CAMP Ethernet communication for Siemens/TI 505 programmable controllers. It offloads networking from the PLC CPU and connects HMI, SCADA and peer controllers.
Detailed content
Technical Specifications:
- Catalog number: 505-CP2572
- System: SIMATIC 505 / TI 505 racks
- Protocols: TCP/IP, UDP/IP, CAMP
- Ports: 10/100Base-T RJ45 and AUI/10Base2 depending variant; some versions 10 Mbps AUI only
- Backplane power: 5 V DC from 505 rack
- Command slots: multiple independent message blocks in V-memory
- Status indicators: module, link, activity, fault and collision
- Operating temperature: 0 to 60 °C
Functional Features: Independent communication processor, socket-based messaging, ladder-accessible send/receive control through WX/WY words, multi-client Ethernet polling, reduced PLC scan loading.
Material Composition: FR-4 PCB, metal/plastic faceplate, RJ45 and AUI connectors, onboard microprocessor and Ethernet transceiver, gold-plated backplane contacts.
Structural Features: Rack-plugged coprocessor, DIP or software IP configuration, LED diagnostics, CAMP and standard TCP/UDP stacks, compatible with 545/555/575 CPU platforms in defined firmware combinations.
Working Principle: The module receives message instructions from the PLC through the backplane, builds Ethernet frames, manages TCP/UDP sockets, exchanges data with SCADA or peer devices, and returns status to the ladder program through mapped memory.
Application Scenarios: Legacy process plants, factory SCADA integration, HMI data exchange, TI505 peer networking, retrofitted Ethernet reporting without overloading the CPU.
Installation Requirements: Install in a free 505 rack slot, set IP address and DIP configuration to match the existing network, connect RJ45 or AUI to a compatible switch/hub, verify firmware compatibility with the CPU, and download message configuration before run mode.
Usage Precautions: Do not hot-swap in non-hot-swap racks, confirm AUI links use 10 Mbps half-duplex where required, back up V-memory command configuration, avoid IP conflicts, and verify firmware before replacing an existing CP2572.
