Description
Technical Specifications
- Product Model: TU508-ETH (Order code: 1SAP214000R0001)
- Brand: ABB
- Series: AC500 PLC / S500 Distributed I/O System
- Warranty: One Year
- Input Voltage: 24 VDC ±10% auxiliary supply
- Operating Temperature: -20 °C to +60 °C
- Storage Temperature: -40 °C to +85 °C
- Response Time: Dependent on plugged communication module
- Protection Class: IP20, DIN rail cabinet mounting
- Accuracy Class: Not applicable (terminal base unit)
- Output Frequency: Not applicable
- Rated Current Range: Max 100 mA power consumption
- Communication Interface: Dual 10/100 Base-T RJ45 Ethernet ports with status LED; 30 spring-cage terminal points
- Supported Modules: Compatible with CI501-PNIO and other S500 RT-Ethernet communication modules
- Overload Capacity: Reverse polarity protection, ESD suppression on power and signal terminals
- Dimensions: 67.5 mm × 135 mm × 40 mm
Product Overview
The TU508-ETH is a spring-cage wired Ethernet terminal base unit developed for the ABB AC500 PLC and S500 distributed I/O platform. This terminal base accepts plug-in Ethernet communication modules and provides physical termination for process power supply and field wiring. The separated design allows hot swapping of communication interface modules without disconnecting field cables, drastically simplifying maintenance. Dual RJ45 ports support linear or ring industrial Ethernet topologies for PROFINET and other Ethernet-based fieldbus protocols. Front-panel LED indicators display network link activity for fast on-site fault diagnosis. Automation maintenance teams stock this spare terminal unit to restore distributed remote I/O communication links, avoiding extended production shutdowns during hardware replacement.
Application Scenarios
- Automotive Assembly Production Lines: Installed for distributed S500 remote I/O stations connected to AC500 controllers. Ring network capability enhances communication reliability for safety-critical assembly equipment.
- Water & Wastewater Unmanned Pumping Sites: Enables remote I/O connection for valve actuators, flow sensors and level transmitters. Spring terminals deliver stable wiring in high-humidity field control cabinets.
- Mining Bulk Material Conveying Systems: Supports distributed I/O deployed along long conveyor routes. Modular design simplifies expansion of sensor and interlock signal points.
- Petrochemical Process Skids: Forms remote I/O interfaces for process transmitters and motor interlocks. Compatible with PROFINET communication to exchange data with central plant DCS systems.
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