
Product Description
ABB TB850 CEX-Bus Terminator - High-Availability Control System Component
The ABB TB850 (3BSC950193R1) is a precision-engineered CEX-Bus terminator designed for AC 800M high-integrity control architectures. This termination module ensures signal integrity and electromagnetic compatibility across redundant controller configurations, preventing reflections and maintaining data fidelity in mission-critical process environments.
Technical Specifications
- Model Number: 3BSC950193R1
- Product Series: ABB AC 800M Controller Family
- Function: CEX-Bus Signal Termination
- Application: High-Availability Controller Networks
- Compatibility: AC 800M PM8xx Controllers
- Installation: DIN Rail Mountable
- Operating Temperature: 0°C to 60°C
Application Scenarios
Deploy the TB850 terminator in redundant AC 800M configurations where dual-controller setups require proper bus termination. Ideal for pharmaceutical batch control, petrochemical safety systems, power generation turbine control, and water treatment SCADA networks. The terminator maintains signal quality across extended CEX-bus cable runs up to 100 meters between controller pairs.
Solution Benefits
Eliminates signal reflection artifacts that can cause communication errors in high-speed controller exchanges. Ensures deterministic scan times and failover reliability in redundant architectures. Reduces electromagnetic interference susceptibility, critical for installations near VFDs or high-power switching equipment. Simplifies commissioning with plug-and-play installation requiring no configuration.
Integration & Compatibility
Works seamlessly with PM8xx series controllers including PM891, PM891K01, PM893, and PM893F. Compatible with Control Builder M engineering environment for system diagnostics. Supports both simplex and redundant controller topologies without firmware dependencies.
Related Products
| Product | Description | Link |
|---|---|---|
| ABB TB852 RCU Link Terminator | 3BSC950263R1 - Terminator for RCU communication links | View Product |
| ABB TB840A Modulebus Cluster Modem | 3BSE037760R1 - Fiber optic modem for S800 I/O | View Product |
| ABB TB807 Module Termination Unit | 3BSE008538R1 - Termination unit for module configurations | View Product |
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