Introduction: The Network That Changed the Factory Floor
In the late 1990s, factory floors began a quiet revolution. Hardwired point-to-point connections gave way to open Ethernet networks. Engineers could suddenly see production data in real time. The Modicon Momentum platform from Schneider Electric rode that wave. The 170ENT11001 communication adapter became a bridge between legacy control systems and modern TCP/IP infrastructure. Today, it remains a practical choice for plants that need dependable Ethernet connectivity without a full platform migration.

What Is the 170ENT11001?
The 170ENT11001 is a communication adapter from Schneider Electric’s Modicon Momentum series. It handles Ethernet Transmission Control Protocol/Internet Protocol traffic at 10 or 100 megabits per second. The module uses an RJ45 connector for 100BASE-TX cabling. It supports master/slave and peer-to-peer access methods. A BOOTP server assigns IP parameters during setup. The adapter also carries a unique IEEE global address and accepts a user-assigned IP address. Four LED indicators (three green, one yellow) show operational status at a glance.
Key Technical Specifications
Speed and Protocol
The 170ENT11001 delivers dual baud rates of 10 or 100 megabits per second. That flexibility lets you match network speed to existing infrastructure. The Ethernet TCP/IP protocol ensures compatibility with standard industrial networks. CRC-32 control parameters protect data integrity during transmission.
Physical and Environmental Ratings
The adapter weighs 0.15 lb (0.07 kg). It operates from 0 to 60°C in a non-condensing environment. Storage temperature ranges from -40 to 85°C. The IP20 protection class suits cabinet-mounted installations. Protective treatment TC adds another layer of durability.
Network Capacity
You can connect 0 to 32 devices per segment. The maximum cable distance between devices reaches 3,280 feet (1,000 meters). Star and multi-drop topologies are both supported. Shielded twisted pair cable is the recommended transmission medium.

Upgrade Path for Legacy Momentum Systems
Many plants still run Modicon Momentum I/O over proprietary networks. The 170ENT11001 offers a clean upgrade to Ethernet TCP/IP. You keep existing I/O modules and replace only the communication adapter. This approach cuts wiring costs and avoids a full controller swap. The adapter’s BOOTP server simplifies IP assignment across multiple nodes. For facilities planning a phased migration, this module delivers immediate network visibility without disrupting production.
Where the 170ENT11001 Fits
Discrete Manufacturing Cells
A stamping cell with multiple Momentum I/O drops can use the 170ENT11001 to aggregate data. The 32-device-per-segment limit supports typical cell architectures. Star topology keeps cable runs manageable.
Process Skids and Remote Panels
Remote pump skids often sit far from the main control room. The 1,000-meter maximum cable distance lets you place the adapter near the process. Shielded twisted pair cable resists electrical noise from motors and drives.
Building Automation Gateways
HVAC and lighting panels benefit from Ethernet TCP/IP connectivity. The 170ENT11001 links Momentum I/O to building management networks. Peer-to-peer access allows direct data exchange between controllers.
Installation and Setup Notes
Mount the adapter inside a protective enclosure rated for the environment. Use shielded twisted pair cable with RJ45 connectors for 100BASE-TX. Keep cable runs within the 3,280-foot limit between devices. Configure the BOOTP server before powering the network. Assign a unique IP address to each adapter. Verify the IEEE global address matches your network plan. Check the four LED indicators after power-up to confirm link and activity status.
Maintenance and Reliability
Inspect the RJ45 connector and cable strain relief every six months. Look for corrosion or loose contacts in humid areas. Keep the enclosure free of dust and moisture. The IP20 rating requires a clean, dry cabinet environment. Monitor the LED indicators during routine rounds. A yellow LED may signal a speed mismatch or link fault. Replace the adapter if LEDs fail to illuminate after confirming power and cabling. These simple checks extend service life and protect your network uptime.
Compatibility and Integration
The 170ENT11001 works within the Modicon Momentum automation platform. It communicates over Ethernet TCP/IP with 100BASE-TX ports. The adapter supports star and multi-drop topologies. It uses CRC-32 for error checking. BOOTP server configuration assigns IP parameters. The module carries CE marking and protective treatment TC. It integrates with controllers that accept Ethernet TCP/IP communication. Verify your controller’s protocol support before ordering.
Selection Guide
Before buying the 170ENT11001, confirm your network uses Ethernet TCP/IP. Check that your cable plant supports 100BASE-TX with shielded twisted pairs. Verify the 32-device-per-segment limit meets your node count. Ensure your enclosure provides IP20-level protection. SpareTechPLC stocks this adapter and can help you verify compatibility. Contact SpareTechPLC for current availability and lead times. Please verify current lifecycle status and availability with SpareTechPLC before ordering.
Frequently Asked Questions
What baud rates does the 170ENT11001 support?
It supports 10 or 100 megabits per second over Ethernet TCP/IP.
How many devices can I connect per segment?
You can connect 0 to 32 devices per segment.
What is the maximum cable distance between devices?
The maximum distance is 3,280 feet (1,000 meters) using shielded twisted pair cable.
What type of Ethernet port does it use?
It uses an RJ45 connector for 100BASE-TX.
What is the operating temperature range?
The adapter operates from 0 to 60°C in a non-condensing environment.