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Product Overview
The ABB TB511-ETH (1SAP111100R0270) is a high-performance Ethernet Terminal Base used in conjunction with ABB’s AC500 and AC500-eCo programmable logic controller (PLC) systems. It combines power distribution, signal routing, and Ethernet communication into a single compact module, enabling the connection of I/O modules to Ethernet networks in modular and scalable control system architectures.
This model (1SAP111100R0270) represents an enhanced version of the TB511-ETH series, providing robust connectivity, support for fast data exchange protocols, and flexible mounting options. It is engineered for use in demanding industrial automation environments requiring reliable Ethernet-based remote I/O communication.
Key Features
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Dual 10/100 Mbps Ethernet ports for redundant or cascaded network topologies
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Supports Modbus TCP, PROFINET, and other standard protocols
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Seamless integration with ABB AC500/AC500-eCo PLC platforms
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DIN rail mounting for fast and secure installation
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Compact modular base for hot-swappable I/O modules
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Status LEDs for power, network, and module diagnostics
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Passive backplane for signal routing and module communication
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Ideal for decentralized control system topologies
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Wide temperature and humidity operating ranges
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Certified for use in industrial and infrastructure applications
Technical Specifications
| Specification | Details |
|---|---|
| Product Name | Ethernet Terminal Base |
| Model Number | TB511-ETH |
| Ordering Code | 1SAP111100R0270 |
| System Compatibility | ABB AC500 and AC500-eCo PLC platforms |
| Ethernet Interface | 2 × RJ-45 (10/100 Mbps) |
| Communication Protocols | Modbus TCP, PROFINET, EtherNet/IP (depends on CPU config) |
| Bus Interface | Integrated backplane bus |
| Power Supply Voltage | 24 V DC |
| Power Consumption | < 3 W |
| Module Capacity | Supports up to 10 hot-swappable I/O modules |
| Operating Temperature | -25°C to +60°C |
| Storage Temperature | -40°C to +85°C |
| Relative Humidity | 5% to 95% (non-condensing) |
| Dimensions | 28 x 135 x 95.5mm |
| Weight | 0.164 kg |
| Mounting Method | DIN rail (35 mm, EN 60715 standard) |
| Protection Class | IP20 |
| Certifications | CE, UL, cULus, RoHS, EN 61131-2 compliant |
| Status Indicators | LEDs for system status, Ethernet link/activity, and errors |
| Firmware Upgradeable | Yes (through connected CPU module) |
Industry Applications
The TB511-ETH (1SAP111100R0270) is ideal for industries and infrastructure segments requiring scalable, Ethernet-based automation systems:
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Manufacturing: Distributed control for production lines, conveyors, and robotics
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Water & Wastewater: Remote monitoring and I/O control of pumping stations
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Energy & Utilities: Substation automation and energy management systems
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Building Automation: Ethernet integration for HVAC, lighting, and energy systems
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Pharmaceutical: Modular automation systems with validated network communication
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Transportation: Tunnel and railway control systems with remote diagnostics
Product Advantages
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Integrated dual Ethernet ports reduce the need for external switches
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Reliable protocol support including Modbus TCP and PROFINET
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Quick installation with hot-swappable I/O and DIN rail mountability
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Built-in diagnostics with LED indicators to reduce troubleshooting time
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Industrial-grade performance with resistance to temperature and humidity variations
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Part of ABB’s modular AC500 ecosystem for scalable automation solutions
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Compact footprint for use in space-constrained control panels
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Highly interoperable for seamless integration into third-party SCADA and DCS systems
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Low power consumption for energy-efficient operation
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Fully certified for global industrial automation compliance
Frequently Asked Questions (FAQ)
1. What is the difference between TB511-ETH 1SAP111100R0270 and 1SAP111100R0170?
The 0270 version may include firmware updates or hardware enhancements optimized for newer AC500 system requirements, offering improved compatibility and reliability.
2. Can I use this terminal base with older ABB PLCs?
Yes, it is compatible with AC500 and AC500-eCo platforms, but check specific CPU firmware requirements for protocol support.
3. What network protocols are supported?
Modbus TCP, PROFINET, and optionally EtherNet/IP depending on the connected CPU and configuration.
4. Are the I/O modules hot-swappable?
Yes, I/O modules can be replaced without powering down the system.
5. Can I cascade multiple TB511-ETH units on the same network?
Yes, using the dual Ethernet ports, you can create daisy-chained or redundant network topologies.
6. Is this base module suitable for outdoor use?
It is IP20-rated for indoor cabinet installation. For outdoor use, it must be installed in a protected enclosure.
7. How is the module diagnosed?
Built-in LED indicators provide visual feedback for Ethernet link, power, and module status.
8. What is the maximum number of I/O modules supported?
Up to 10 modules per terminal base, depending on CPU and power constraints.
9. Can this terminal base operate in harsh environments?
Yes, with operating temperatures from -25°C to +60°C and industrial humidity ratings.
10. How do I update its firmware?
Firmware is managed through the connected CPU module via ABB’s engineering tools.
Related ABB Terminal and I/O Modules
| Model | Description |
|---|---|
| TB511-ETH 1SAP111100R0170 | Standard Ethernet terminal base with Modbus TCP support |
| TU516 | Standard I/O terminal unit with 24 V supply |
| DI524 | 16-channel digital input module |
| DO524 | 16-channel digital output module (24 V, transistor) |
| AI523 | Analog input module (8 channels, voltage/current) |
| AX522 | Mixed I/O module (analog input/output) |
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