产品介绍
The ABB TB820 3BSE008555R1 is a Module Bus Cluster Modem, designed as a communication interface for ABB’s Advant Controller 800xA or AC 800M automation systems. It plays a crucial role in managing and isolating communication between different clusters / I/O modules in complex distributed control environments.
TB820 enables communication between separate I/O clusters using the ModuleBus, which allows for extended I/O segment configurations over longer distances without signal degradation. It connects to another TB820 via twisted pair cables and supports long-distance communication using RS-485 transmission. One module operates as a master and the other as a slave, ensuring safe and reliable bidirectional data exchange.
This device is indispensable in automation systems where I/O modularity, flexibility, and long-distance data communication are necessary, especially in geographically distributed installations such as oil platforms, large manufacturing plants, or utility substations.
产品规格
| Parameter | Details |
|---|---|
| 型号 Number | TB820 |
| ABB Order Code | 3BSE008555R1 |
| Function | ModuleBus Cluster Modem |
| Communication Type | RS-485, twisted pair (1 master and 1 slave) |
| Baud Rate | 375 kbps |
| Max Cable Length | Up to 200 meters (shielded twisted pair cable) |
| Connection Type | Two 9-pin DSUB male connectors (ModuleBus In/Out) |
| Operating Voltage | Supplied via ModuleBus (24VDC nominal) |
| Power Consumption | Approx. 1.5 W |
| Isolation | Galvanic isolation between master/slave communication paths |
| LED Indicators | Status, Communication (Tx/Rx) |
| Mounting | DIN rail mount |
| Protection Class | IP20 |
| Operating Temperature | –25°C to +70°C |
| Storage Temperature | –40°C to +85°C |
| Relative Humidity | 5% to 95% (non-condensing) |
| Dimensions (W×H×D) | 50 x 6 x 25 mm |
| 重量 | 0.34 kg |
| Certifications | CE, RoHS, ATEX Zone 2 (with conditions), UL |
Product Applications
The ABB TB820 is specifically designed for use in distributed industrial automation systems that require segmented I/O clusters. Applications include:
-
Distributed Control Systems (DCS)
Forms part / the ABB 800xA platform for I/O segment extension across large facilities. -
Oil & Gas Installations
Extends I/O connectivity across platforms or remote rigs where distance is critical. -
Chemical and Petrochemical Plants
Links remote I/O enclosures in explosion-prone zones while maintaining system integrity. -
Water Treatment Facilities
Facilitates communication between remote field panels and control rooms. -
Power Generation & Distribution
Connects modular systems over substations and generator 件s. -
Manufacturing Automation Lines
Allows flexible placement / control hardware across production areas.
Product Advantages
-
Extended Communication Range
支持s up to 200 meters / I/O distribution using RS-485, perfect for large plants. -
Modular and Scalable
Enables segmentation / ModuleBus networks without compromising system integrity. -
Reliable and Safe
Galvanic isolation protects critical control signals and improves safety. -
Compact Design
Slim footprint ensures minimal space usage on DIN rail installations. -
Plug-and-Play Integration
Seamlessly connects with other ABB AC 800M modules and controllers. -
LED Diagnostics
Easy status monitoring through onboard LED indicators. -
Low Power Consumption
Efficient design draws minimal power from the ModuleBus. -
Industrial Grade Durability
Designed to withstand harsh environments and fluctuating conditions. -
Certified for Hazardous Areas
Suitable for installation in ATEX Zone 2 with the appropriate enclosure. -
ABB 800xA Ecosystem Compatible
Fully supported by ABB’s engineering tools and DCS s/tware.
常见问题 (FAQ)
-
What is the function / the TB820 module?
It serves as a modem for connecting and isolating separate ModuleBus segments. -
Can TB820 be used over long distances?
Yes, it supports RS-485 communication over up to 200 meters with twisted pair cabling. -
Does the module require an external power supply?
No, it receives power directly from the ModuleBus. -
What is the difference between the master and slave TB820?
One acts as the master (initiator), and the other as the slave (responder) in a pair. -
Can TB820 be installed in hazardous areas?
Yes, with suitable protection and enclosures, it complies with ATEX Zone 2. -
How is the module mounted?
It is DIN rail mounted inside control panels or field enclosures. -
Is the communication galvanically isolated?
Yes, it provides galvanic isolation between communication paths for safety. -
Does the TB820 have diagnostics features?
Yes, it has LED indicators for communication and module status. -
Can this module be used in non-ABB systems?
It is specifically designed for ABB AC 800M and 800xA systems and may not function properly outside these environments. -
What happens if the TB820 fails?
The loss / communication between I/O clusters would trigger diagnostics; redundancy or quick replacement is recommended.
Related 型号s (Same Series or Functionally Linked)
| 型号 | Function | System Compatibility | Notes |
|---|---|---|---|
| TB810 | ModuleBus Extender | AC 800M / 800xA | Used for local extension within ModuleBus |
| TB821 | ModuleBus Cluster Modem (Redundant) | AC 800M / 800xA | Redundant version for high availability systems |
| CI854AK01 | PROFIBUS-DP Interface | AC 800M | Connects PROFIBUS networks to ABB controllers |
| CI840A | Communication Interface Module | AC 800M | Required for connecting I/O to CPU |
| TU830V1 | Base Terminal 单位 | AC 800M | Mounting base for I/O modules |
| AI810 | Analog Input Module | AC 800M | 8-channel 4–20 mA input module |
Popular ABB Automation Modules (Same 品牌)
| 型号 | Function | System | Features |
|---|---|---|---|
| AC800M PM861AK01 | Controller Module | 800xA | Dual CPU, hot-swappable |
| CI854AK01 | PROFIBUS Interface Module | 800xA | Dual-channel master/slave interface |
| DO810 | Digital Output Module | 800xA | 16 channel, 24 VDC output |
| DI810 | Digital Input Module | 800xA | 16 channel, 24 VDC input |
| AO810V2 | Analog Output Module | 800xA | 8-channel 4–20 mA output |
| AI830A | Analog Input Module | 800xA | 8-channel with HART communication support |
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