6ES7326‐1BK02‐0AB0 SIEMENS

6ES7326‐1BK02‐0AB0 SIEMENS Communication Processor

Product  Description：

A SIEMENS Communication Processor (CP) is a specialized hardware expansion module designed to offload communication tasks from the central processing unit (CPU) of SIMATIC programmable logic controllers (PLCs) and automation systems. By handling complex network protocols, data encryption, point-to-point connections, and high-volume bus communications independently, a Communication Processor ensures stable, deterministic CPU performance while expanding the networking capabilities of systems like the SIMATIC S7-1200, S7-1500, S7-300, S7-400, and ET 200 series.

Product Specifications

• Supported Network Interfaces: Industrial Ethernet, PROFINET, PROFIBUS (DP/FMS), AS-Interface, and serial point-to-point connections (RS-232, RS-422, RS-485).

• Transmission Rates: Serial communication up to 115.2 kbps; PROFIBUS up to 12 Mbps; Industrial Ethernet/PROFINET at 10/100/1000 Mbps with integrated 2-port or 4-port switches.

• Protocol Support: TCP/IP, UDP, ISO-on-TCP, S7 communication, Modbus RTU/TCP, OPC UA (Server/Client), IEC 60870-5-104, DNP3, and Sinaut ST7.

• Security Features: Integrated stateful inspection firewall, VPN IPsec tunnels, HTTPS, SNMPv3, encrypted NTP time synchronization, and certificate management.

• Operating Voltage: 24 V DC powered via backplane bus or external supply depending on the model series.

• Operating Temperature: Standard range from -25°C to +60°C; extended SIPLUS variants available for extreme environments from -40°C to +70°C.

• Form Factor and Mounting: Compact modular housing designed for standard 35 mm DIN rail or S7 profile rail mounting with IP20 enclosure protection.

Key Product Advantages

• CPU Offloading: Handles processing-heavy communication protocols independently, allowing the main CPU to dedicate its computing resources entirely to real-time control logic and cycle speed.

• Enhanced Network Connectivity: Expands a control system with additional independent IP addresses, subnet routing capabilities, and physical interfaces without needing to replace the CPU.

• Advanced Cyber Security: Provides integrated security functions such as firewalls and encrypted VPN tunnels to protect sensitive OT networks from unauthorized remote access and cyber threats.

• Telecontrol and Remote Management: Enables seamless long-distance communication over cellular networks (LTE/5G) or Internet connections to remote terminal units (RTUs) and cloud systems.

• Seamless System Integration: Fully integrated into the TIA Portal (Totally Integrated Automation) engineering framework, simplifying hardware configuration, diagnostic evaluation, and network setup.

Important Operational Considerations

• Firmware and Hardware Compatibility: Always verify that the Communication Processor's firmware version is fully supported by the specific CPU model and TIA Portal software version being used.

• Bandwidth and Traffic Management: Large volumes of data exchange across multiple network nodes should be structured carefully to prevent network congestion and packet latency.

• Proper Shielding and Grounding: Industrial Ethernet and serial communication cables must be properly shielded and grounded to prevent signal disruption caused by electromagnetic interference in harsh factory environments.

• Firewall Configuration: When using CPs with integrated security features, ensure that required ports and communication channels are explicitly allowed in the security rules to avoid unintended connection drops.

• Thermal Dissipation: Adequate ventilation space must be maintained inside the control cabinet to prevent overheating, especially when multiple communication modules are stacked together.

Industrial Applications

• Process Industry and SCADA Systems: Connects distributed field devices, remote sites, and supervisory control systems in oil and gas, chemical, and water treatment operations.

• Factory and Machine Automation: Facilitates fast, high-volume data exchange between PLCs, human-machine interfaces (HMIs), vision systems, and enterprise MES/ERP software on the shop floor.

• Telecontrol and Infrastructure Management: Used in pumping stations, power distribution networks, and traffic control systems to transmit telemetry and control commands over large geographical distances.

• IT/OT Network Bridging: Functions as a secure gateway to transfer production data directly to cloud platforms or IT networks via protocols like OPC UA and MQTT.

The structure and details of the product：

Our services：

Shipping Port:  China

Payment: Bank of Chicago, Bank of Singapore

Express cooperation: fedex, DHL, UPS and your express account

Service: Professional Sales provides 24 hours /7 days online service

Warranty: one year

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Our main products include DCS control system spare parts, PLC system spare parts, and robot system spare parts. Our advantageous brands include Allen Bradley, Bently Nevada, ABB, HIMA, Reliance, Bender, National Instruments, Emerson Ovation, Honeywell, Siemens, Allen Bradley, ICS Triplex, FOXBORO, Schneider, GE Fanuc, Motorola, HIMA, Prosoft, and other imported industrial components. Our main products serve a wide range of electronic, metallurgical, chemical, and power plants Industries such as steel mills, rubber, cement, machinery and equipment, and construction.