Product Introduction and Purpose – Pluto B20 v2 Safety PLC
The Pluto B20 v2 Safety PLC, model 2TLA020070R4600, is a robust and flexible programmable logic controller developed by ABB Jokab Safety for machine safety and automation systems. It is designed to control safety functions in small to medium-sized machines and distributed safety networks, ensuring the highest levels of functional safety.
This controller simplifies the implementation of complex safety functions by providing a mix of configurable I/O and integrated safe communication protocols, enabling it to serve as both a standalone safety controller or part of a network of Pluto units.
Industry Context – Why Pluto B20 v2 Safety PLC Stands Out
Modern automation systems demand both functional efficiency and safety. The Pluto B20 v2 Safety PLC offers a unique architecture that supports distributed control logic, where multiple PLCs can safely exchange data over the Pluto SafetyBus. This decentralization allows for simplified wiring and scalable system expansion, making it especially valuable in modular machine designs or production lines with multiple safety zones.
It is fully compliant with SIL3 (IEC 61508) and PLe (ISO 13849-1), ensuring it meets the toughest safety requirements for industrial applications.
Performance and Quality
This safety PLC is engineered to handle demanding safety functions with rapid response times and deterministic behavior. The Pluto B20 v2 includes built-in diagnostics, status LEDs, and USB-based programming for rapid setup and troubleshooting. Its rugged design and industrial-grade components allow reliable operation in harsh environments.
Key Features and Design Benefits – Pluto B20 v2 Safety PLC
20 Digital I/Os, with multiple configurable as inputs or outputs
Supports SafetyBus for peer-to-peer communication between Pluto units
High-level safety compliance (SIL3 / PLe)
USB programming interface and free Pluto Manager software
Compact DIN rail mounting for easy panel integration
Integrated LEDs for status monitoring and diagnostics
Compatible with ABB’s Jokab range of safety devices (Eden sensors, Smile relays, etc.)
Flexible architecture for standalone or networked use
Certifications, Compliance, and Compatibility
The Pluto B20 v2 Safety PLC is certified by leading international bodies for use in functional safety systems:
IEC 61508 SIL3
ISO 13849-1 PLe
EN 62061
CE, UL, TÜV certified
Fully compatible with ABB Jokab safety components and CANopen Safety devices
📊 Technical Specifications
| Parameter | Specification |
|---|---|
| Model Number | 2TLA020070R4600 |
| I/O Count | 20 Digital I/Os (configurable) |
| Voltage | 24V DC |
| Communication | Pluto SafetyBus, CANopen Safety |
| Safety Level | SIL3 (IEC 61508), PLe (ISO 13849-1) |
| Programming Interface | USB |
| Operating Temperature Range | -10°C to +55°C |
| Mounting | DIN Rail |
| Dimensions | 110 x 105 x 22 mm (approx.) |
| Enclosure Protection | IP20 |
| Certification | TÜV, CE, UL |
| Country of Origin | Sweden |
🔧 Product Attributes
Brand: ABB Jokab Safety
Model Number: 2TLA020070R4600
Voltage: 24V DC
Capacity: 20 I/Os
Technology Type: Safety PLC
Programming: USB Interface
Mounting: DIN Rail
Warranty Period: 1 Year
Country of Origin: Sweden
Compliance: SIL3, PLe, CE, UL, TÜV




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