ABB Pluto B42 AS-i 2TLA020070R1400 is a 24 V DC programmable safety controller with AS-i and Pluto Safety Bus connectivity, 42 total I/O, 20 failsafe inputs, 16 configurable I/O, four failsafe relay outputs and two failsafe transistor outputs for industrial machine safety applications.
Why Choose the ABB Pluto B42 AS-i 2TLA020070R1400 Safety Controller?
The ABB Pluto B42 AS-i 2TLA020070R1400 is a compact and powerful programmable safety controller / safety PLC designed for machine safety applications requiring flexible I/O, networked safety communication and AS-Interface integration. Part of the ABB Jokab Safety Pluto family, it combines an AS-i bus with the Pluto Safety Bus for efficient integration of safety devices across automated machinery and production systems.
The Pluto B42 AS-i provides a total of 42 I/O, comprising 20 failsafe inputs, 16 configurable non-failsafe outputs/failsafe inputs, 4 individually failsafe relay outputs and 2 individually failsafe transistor outputs. This flexible architecture allows numerous safety functions to be handled by a single programmable controller while reducing the amount of dedicated safety hardware required.
Operating from a 24 V DC supply and supporting AS-i, Pluto Safety Bus, MODBUS ASCII and StatusBus communication, the controller is suitable for distributed and networked machine safety systems. Its compact 90 × 84 × 120 mm enclosure is designed for DIN-rail installation inside control panels, while safety functions can achieve performance levels up to PL e when correctly engineered and validated.
Key Advantages
42 total I/O provides substantial capacity for complex machine safety applications.
Combines AS-i bus and Pluto Safety Bus communication within one safety PLC.
20 dedicated failsafe inputs support direct connection of numerous safety devices.
16 configurable I/O points can operate as non-failsafe outputs or failsafe inputs.
Provides 4 failsafe relay outputs plus 2 failsafe transistor outputs.
Programmable using ABB Pluto Manager software for flexible safety logic configuration.
Compact 90 mm-wide DIN-rail format helps conserve control-panel space.
Key Features
ABB Jokab Safety Pluto series.
Programmable safety controller / safety PLC.
Integrated AS-Interface safety bus.
Integrated Pluto Safety Bus.
42 total I/O.
20 failsafe inputs.
16 non-failsafe outputs / failsafe inputs.
4 individually failsafe relay outputs.
2 individually failsafe transistor outputs.
Supports MODBUS ASCII, Pluto Safety Bus, AS-i and StatusBus.
24 V DC control supply.
DIN-rail mounting with screw-terminal connections.
Programmable through ABB Pluto Manager.
Flexible Programmable Control for Machine Safety Systems
ABB Pluto safety PLCs are designed to allow safety devices such as emergency stops, safety switches, non-contact sensors, light curtains and other protective equipment to be incorporated into programmable machine safety functions. The Pluto B42 AS-i extends this capability with AS-Interface connectivity, allowing compatible AS-i safety devices and distributed I/O to be integrated alongside conventional safety circuits.
The combination of 20 failsafe inputs, 16 configurable I/O points and six individually failsafe outputs provides substantial flexibility for machinery with multiple safety zones and functions. Pluto Safety Bus communication also enables multiple Pluto controllers to exchange safety-related information, supporting scalable architectures for larger machines and interconnected production equipment.
Typical Applications
Automated production and assembly machinery.
AS-i Safety at Work installations.
Robotic cells and automated manufacturing systems.
Conveyors and material-handling equipment.
Packaging and processing machinery.
Multi-zone machine safety control systems.
Technical Specifications
Manufacturer
ABB
Product family
Jokab Safety
Series
Pluto
Model
Pluto B42 AS-i
Part number
2TLA020070R1400
Product type
Programmable safety controller / safety PLC
Total I/O
42
Failsafe inputs
20
Configurable I/O
16 non-failsafe outputs / failsafe inputs
Failsafe relay outputs
4 individually failsafe outputs
Failsafe transistor outputs
2 individually failsafe outputs
Rated control supply voltage
24 V DC
Communication protocols
MODBUS ASCII, Pluto Safety Bus, AS-i, StatusBus
Safety bus
Yes
Programming software
ABB Pluto Manager
Connection
Screw terminals
Mounting
DIN rail
Degree of protection
IP20 terminals / IP40 enclosure
Performance level
Up to PL e
Product height
84 mm
Product width
90 mm
Product depth
120 mm
Product net weight
0.65 kg
EAN / UPC
7320500410608
HS Code
85371091
Country of Manufacture
Sweden
Frequently Asked Questions
What is the ABB Pluto B42 AS-i 2TLA020070R1400?
The Pluto B42 AS-i is an ABB programmable safety controller combining AS-i and Pluto Safety Bus connectivity with 42 I/O for controlling and monitoring safety functions on industrial machinery.
How many inputs and outputs does the Pluto B42 AS-i have?
It provides 42 total I/O: 20 failsafe inputs, 16 configurable non-failsafe outputs/failsafe inputs, 4 individually failsafe relay outputs and 2 individually failsafe transistor outputs.
Does the Pluto B42 AS-i support AS-Interface?
Yes. The Pluto B42 AS-i includes an AS-i bus as well as ABB's Pluto Safety Bus, making it suitable for distributed AS-Interface machine safety applications.
What supply voltage does the ABB Pluto B42 AS-i require?
The controller operates from a rated control supply voltage of 24 V DC.
How is the ABB Pluto B42 AS-i programmed?
The controller is programmed using ABB Pluto Manager, which is used to develop and configure the safety logic for Pluto programmable safety systems.
Trusted by Machine Safety Engineers Worldwide
ABB Jokab Safety Pluto programmable safety controllers provide machine builders, system integrators and automation engineers with flexible safety logic, scalable communication and extensive I/O capabilities for sophisticated industrial machine safety systems.
Manufacturer
ABB
Product family
Jokab Safety
Series
Pluto
Model
Pluto B42 AS-i
Part number
2TLA020070R1400
Product type
Programmable safety controller / safety PLC
Total I/O
42
Failsafe inputs
20
Configurable I/O
16 non-failsafe outputs / failsafe inputs
Failsafe relay outputs
4 individually failsafe outputs
Failsafe transistor outputs
2 individually failsafe outputs
Rated control supply voltage
24 V DC
Communication protocols
MODBUS ASCII, Pluto Safety Bus, AS-i, StatusBus
Safety bus
Yes
Programming software
ABB Pluto Manager
Connection
Screw terminals
Mounting
DIN rail
Degree of protection
IP20 terminals / IP40 enclosure
Performance level
Up to PL e
Product height
84 mm
Product width
90 mm
Product depth
120 mm
Product net weight
0.65 kg
EAN / UPC
7320500410608
HS Code
85371091
Country of Manufacture
Sweden
No documents available for this product.
Delivery
We offer fast UK delivery on all stocked items. Orders placed before 3pm Monday to Friday are eligible for next-day delivery.
Standard delivery: 2–3 working days
Next-day delivery: available on in-stock items when ordered before 3pm
Express options available — contact us for details
Returns
If you need to return an item, please contact our sales team within 30 days of receipt. Items must be returned unused in their original packaging.
Our service agreements are built to support long term procurement relationships. By working closely with engineering teams and procurement departments, we help streamline purchasing processes while ensuring consistent access to critical components and sourcing support when it matters most.
Priority sourcing and supply support
Flexible payment terms for qualifying organisations
Support for engineering, maintenance, and operations
500 +
Stock lines ready to ship
1,000 +
Same day dispatches
3500 +
Customers supported
28
Trusted Manfacturers
● frequently asked questions
Common questions about our products and support
At Led Controls Ltd we help engineers source the right automation and control gear with confidence. below are quick answers to what we are asked most often.
What product ranges do you supply
We supply all leading manfacturers in our industry. we offer next day delivery on most poplour products.
Can you help specify the correct part?
Your content goes here. Edit or remove this text inline or in the module Content settings. You can also style every aspect of this content in the module Design settings and even apply custom CSS to this text in the module Advanced settings.
Do you have stock for urgent orders?
Your content goes here. Edit or remove this text inline or in the module Content settings. You can also style every aspect of this content in the module Design settings and even apply custom CSS to this text in the module Advanced settings.
What are your delivery times and costs?
Your content goes here. Edit or remove this text inline or in the module Content settings. You can also style every aspect of this content in the module Design settings and even apply custom CSS to this text in the module Advanced settings.
What about warranties, returns and faulty items?
Your content goes here. Edit or remove this text inline or in the module Content settings. You can also style every aspect of this content in the module Design settings and even apply custom CSS to this text in the module Advanced settings.
LED Controls is a specialist distributor of factory automation and industrial controls, supplying OEMs, machine builders, panel builders and end users throughout the UK and worldwide. As a trusted UK distributor for many of the world’s leading automation manufacturers, we provide industrial control products, technical expertise and bespoke automation solutions backed by outstanding customer service.
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...