Description
Unboxing & Hardware Overview
- Manufacturer & Architecture: Siemens AG (SIMATIC S7-400 Industrial Automation Platform)
- Part Number / Model: 6GK7443-5DX04-0XE0 (Catalog Designation: CP 443-5 Extended)
- Product Type: PROFIBUS DP and FMS Communications Processor Module
- Physical Dimensions: Standard single-slot SIMATIC S7-400 module format
- Estimated Shipping Weight: ~1.1 lbs (0.5 kg) enclosed in industrial anti-static ESD packaging and protective structural cushioning
- Primary Condition Status: Factory New / New Surplus / Certified Refurbished options available (verify specific firmware version and hardware release tier with provider prior to dispatch)
Product Introduction
The Siemens SIMATIC NET CP 443-5 Extended (6GK7443-5DX04-0XE0) is a high-performance communications processor engineered specifically to connect the SIMATIC S7-400 programmable logic controller (PLC) to PROFIBUS DP and PROFIBUS FMS networks.
Acting as an autonomous communication coprocessor, the CP 443-5 Ext unburdens the S7-400 CPU from complex network protocol management. It supports PROFIBUS DP-V1 master/slave communication, handling up to 125 DP slaves, S5-compatible communication, PG/OP routing across networks, and open data communication (SEND/RECEIVE).
Core Technical Specifications
| Parameter | Value |
| Product Model | 6GK7443-5DX04-0XE0 (CP 443-5 Extended) |
| System Compatibility | SIMATIC S7-400 Programmable Controller Systems |
| Network Interface | 1 x 9-pin Sub-D socket for PROFIBUS DP (up to 12 Mbps transmission rate) |
| PROFIBUS Functionality | DP-V0 / DP-V1 Master or Slave, FMS, and S5-compatible communication |
| Slave Capacity | Supports up to 125 PROFIBUS DP slaves per module |
| Routing & Diagnostic | PG/OP routing across subnetworks, comprehensive diagnostic and status LEDs |
| Power Requirements | Powered directly from the S7-400 rack backplane 5V supply bus |
| Operating Temperature | 0°C to +60°C (32°F to 140°F) standard panel mount range |
| Storage Temperature | -40°C to +85°C (-40°F to 185°F) |
| Relative Humidity | Up to 95% non-condensing |
Compliance & Standards Alignment
- Manufactured in accordance with international CE, UL, cUL, and PROFIBUS user organization (PNO) profile guidelines.
- Built with high electromagnetic immunity to ensure stable, noise-resistant data communication in heavy industrial and high-interference switchgear environments.
Technical Note: The PROFIBUS DP node address is typically stored directly within the CPU hardware configuration (STEP 7 or TIA Portal) rather than set via physical hardware switches on the module. When replacing a module, ensure the hardware configuration is correctly downloaded to the S7-400 CPU.
Storage & Asset Preservation Guidelines
- Store the communication module inside its original factory antistatic ESD shielding bag to protect internal microprocessors and communication transceivers from electrostatic discharge.
- Maintain clean, dry, climate-controlled warehouse storage environments where ambient relative humidity is kept strictly below 60%.
- Avoid mechanical shocks, drops, or heavy surface pressure to protect the 9-pin Sub-D connector and backplane interface pins.
Physical Installation Prerequisites
- Ensure that the S7-400 rack power supply and connected PROFIBUS line segments are completely de-energized and locked out (LOTO) prior to module insertion or removal.
- Guide the CP module carefully along the S7-400 housing slot rails, ensuring parallel entry before pressing firmly to engage the rear backplane bus connectors.
- Tighten the top and bottom mounting screws securely to ensure correct module grounding and mechanical stability.
Buyer’s FAQ & Logistics
Q: What Harmonized System (HS) code applies to this Siemens communication processor?
A: Industrial network adapters, data transmission cards, and programmable controller communication modules typically classify under HS code 8517.62 (Machines for reception, conversion and transmission or regeneration of data) or 8538.90. Confirm final codes with your customs broker.
Q: Is the 6GK7443-5DX04-0XE0 a direct replacement for older 6GK7443-5DX03-0XE0 versions?
A: Yes, the -0XE0 revision is designed for form-fit-function compatibility, though software/firmware project updates in STEP 7 may be required depending on the original baseline configuration.
Q: Is the listed online price final for procurement?
A: Note: Price is subject to market availability, inventory conditions, and module lifecycle status; contact our technical sales desk for a formal, time-sensitive quotation.




