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- ABB
- TB851
- CEX Bus Terminator
- Switzerland
- 55 x 16 x 45mm
- 0.04 kg
- 3BSC950194R1
- Xiamen, China
- New & In Stock
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ABB TB851 3BSC950194R1 CEX Bus Terminator
Product Introduction
The ABB TB851 3BSC950194R1 is a CEX bus terminator module designed for use within ABB’s AC 800M control system. As an essential component in the extended communication architecture of the system, the TB851 provides proper signal termination for the CEX-Bus—a high-speed serial communication bus used to connect various I/O modules and communication interfaces.
Without proper termination, communication reliability and system stability can be significantly compromised. The TB851 ensures signal integrity and minimizes the possibility of data transmission errors by eliminating reflections on the bus lines. This passive component is critical for the performance of distributed control systems, particularly in environments that demand uninterrupted communication across modular system components.
Product Parameters
| Parameter | Specification |
|---|---|
| Model | TB851 3BSC950194R1 |
| Dimensions | 55 x 16 x 45 mm |
| Weight | 0.04 kg |
| Function | CEX-Bus Termination Module |
| Communication Type | CEX Serial Bus |
| Installation | DIN-rail mount |
| Application | AC 800M System |
| Compatibility | S800 I/O, CI modules |
| Operating Temperature | 0°C to 55°C |
| Storage Temperature | -40°C to 70°C |
Product Applications
The TB851 terminator module is a vital part of ABB’s distributed control system architecture and is used in:
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AC 800M Controllers – Installed at the end of the CEX bus to ensure signal termination and data integrity.
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Process Automation Systems – Enables reliable communication among I/O modules and interface units.
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Modular Control Systems – Facilitates stable data exchange in flexible and distributed installations.
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Industrial Plants – Ensures uninterrupted data flow in power generation, oil and gas, chemical processing, and more.
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Factory Automation – Used in high-reliability applications requiring robust field communication between modular devices.
Product Advantages
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Ensures Signal Integrity: Prevents reflection and loss of signal on the CEX communication bus.
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Compact Form Factor: With a small footprint of 55 x 16 x 45 mm and a weight of only 0.04 kg, it integrates easily into space-constrained panels.
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Seamless Integration: Fully compatible with ABB’s AC 800M and S800 I/O modules.
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Reliable Communication: Helps maintain data accuracy and transmission stability in harsh industrial environments.
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Passive and Maintenance-Free: No power supply or software configuration needed, reducing setup complexity.
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Durable and Industrial-Grade: Built to operate in challenging industrial conditions with a wide temperature range.
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Essential Component: Critical for ensuring end-of-line bus stability in distributed control networks.
Brand and Series Information
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Brand: ABB
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Series: S800 I/O and AC 800M Series
The TB851 is part of ABB’s modular control architecture, which includes the AC 800M controller platform and S800 I/O system. Together, these components form a scalable, high-performance automation system ideal for process industries.
Recommended Models from the Same Series or Related
| Model | Function | Dimensions (mm) | Weight (kg) | Application |
|---|---|---|---|---|
| TB806 | ModuleBus Terminator | 55 × 16 × 45 | 0.04 | S800 I/O systems |
| CI854A | Profibus-DP Interface Module | 115 × 35 × 120 | 0.2 | AC 800M communication |
| TU830 | Extended I/O Terminal Unit | 126 × 76 × 46 | 0.15 | S800 I/O field termination |
| AI810 | Analog Input Module (4ch, HART) | 186 × 59 × 107 | 0.18 | Process signal acquisition |
| AO810V2 | Analog Output Module (4ch) | 186 × 59 × 107 | 0.18 | Process control output |
Recommended Popular ABB Modules
| Model | Function | Dimensions (mm) | Weight (kg) | Series |
|---|---|---|---|---|
| CI854A | Profibus-DP Interface Module | 115 × 35 × 120 | 0.2 | AC 800M |
| AI810 | 4-ch Analog Input Module | 186 × 59 × 107 | 0.18 | S800 I/O |
| DO810 | 16-ch Digital Output Module | 186 × 59 × 107 | 0.2 | S800 I/O |
| PM861AK01 | CPU Module (AC 800M) | 200 × 140 × 125 | 1.3 | AC 800M |
| TU849 | Compact I/O Terminal Unit | 126 × 76 × 46 | 0.13 | S800 I/O |
FAQ (QA Format)
Q1: What is the function of the TB851 module?
A1: It provides signal termination for the CEX bus in ABB control systems to ensure communication integrity.
Q2: Is TB851 compatible with all ABB systems?
A2: It is specifically designed for use with ABB’s AC 800M and S800 I/O systems.
Q3: Does the TB851 require power?
A3: No, it is a passive device and does not require any power supply.
Q4: How is TB851 installed?
A4: It is DIN-rail mountable for easy and secure installation.
Q5: What are the physical dimensions of the TB851?
A5: The module measures 55 x 16 x 45 mm.
Q6: What is the weight of the TB851?
A6: It weighs approximately 0.04 kg.
Q7: What environment can the TB851 operate in?
A7: It can operate in temperatures from 0°C to 55°C and be stored from -40°C to 70°C.
Q8: Is software configuration required for TB851?
A8: No, it works as a plug-and-play termination device.
Q9: Can I use TB851 in field applications?
A9: Yes, it is suitable for industrial field installations requiring bus termination.
Q10: What happens if a CEX bus lacks termination like TB851?
A10: Lack of termination can lead to signal reflections, communication errors, or data loss.
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All product specifications are original and authentic imported products. We have an annual sales volume of 300 million yuan, and we only produce original and authentic products. All customers who cooperate with us directly online can enjoy low discounts.
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We have a complete range of product models, 80% of conventional models are in stock, and we have established channels in Asia, Africa, North America, South America, and Europe, effectively shortening the order processing time and satisfying customers in a timely manner.
Technical Team
Fast delivery. Spot goods can be shipped on the same day, and the delivery time transaction is 20% faster than that of peers on average, with a delivery time accuracy rate of 99%.
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24-hour after-sales service guarantee team, professional and standardized management service system.