ABB Pluto B22 2TLA020070R4800 is a compact 24 V DC programmable safety controller with Pluto safety bus, 14 dedicated failsafe inputs and 8 configurable non-failsafe outputs/failsafe inputs for distributed industrial machine-safety systems.
The ABB ABB pluto b22 abb safety controller 2TLA020070R4800 is a compact and powerful programmable safety controller (Safety PLC) designed for machine-safety applications. Part of the ABB Pluto range, the Pluto B22 combines programmable safety logic, extensive failsafe input capacity and Pluto safety bus communication in a space-saving 45 mm-wide module.
The Pluto B22 provides 22 total I/O, comprising 14 dedicated failsafe inputs and 8 configurable non-failsafe outputs/failsafe inputs. All eight configurable channels can therefore be used as additional failsafe inputs when required, providing a maximum of 22 failsafe inputs. The B22 has no onboard failsafe outputs, making it particularly useful as an input-focused controller within a distributed Pluto safety-bus system.
Operating from a 24 V DC supply, the Pluto B22 supports the Pluto safety bus, MODBUS ASCII and StatusBus and is programmed using ABB Pluto Manager software. Its distributed safety architecture allows multiple Pluto units to exchange safety-related information, providing machine builders with a flexible platform for implementing complex safety functions across industrial machinery and automated systems.
Key Advantages
Compact programmable Safety PLC with 22 total I/O.
14 dedicated failsafe inputs for direct connection of machine-safety devices.
8 configurable non-failsafe outputs/failsafe inputs provide flexible system configuration.
Supports up to 22 failsafe inputs when all configurable channels are used as inputs.
Integrated Pluto safety bus enables distributed safety communication between compatible Pluto controllers.
Only 45 mm wide, conserving valuable DIN-rail and control-panel space.
Supports MODBUS ASCII, Pluto Safety Bus and StatusBus.
24 V DC supply voltage.
Programmable using ABB Pluto Manager.
Safety performance capability up to PL e / Category 4 / SIL 3.
Reliable Distributed Safety Control for Industrial Machinery
The ABB Pluto platform provides a programmable approach to machine safety in which emergency stops, guard switches, non-contact sensors, light curtains and other compatible safety devices can be incorporated into a coordinated safety-control system. Pluto controllers can exchange safety-related information through the Pluto safety bus, reducing the need for extensive conventional interlocking wiring between different sections of a machine.
The Pluto B22 is particularly well suited to applications requiring a large number of local safety inputs without local failsafe outputs. Its 14 dedicated failsafe inputs and eight configurable channels provide up to 22 failsafe inputs, while the Pluto safety bus allows the resulting safety information to be shared with other compatible Pluto units elsewhere in the machine or production system.
Typical Applications
Industrial machine safety control systems.
Multi-zone emergency-stop monitoring.
Machine guard and safety-door monitoring.
Robotic manufacturing and assembly cells.
Packaging and processing machinery.
Conveyor and material-handling systems.
Distributed safety systems using multiple ABB Pluto controllers.
Technical Specifications
Manufacturer
ABB
Series / Category
Pluto
Product Name
Pluto B22
SKU / Product ID
2TLA020070R4800
Product type
Programmable safety controller / Safety PLC
Supply voltage
24 V DC ±15%
Total I/O
22
Dedicated failsafe inputs
14
Configurable I/O
8 non-failsafe outputs / failsafe inputs
Maximum failsafe inputs
22
Maximum non-failsafe outputs
8
Failsafe outputs
None
Maximum analogue inputs
1
Maximum StatusBus inputs
4
Pluto safety bus
Yes
Supported protocols
MODBUS ASCII, Pluto Safety Bus, StatusBus
Programming software
ABB Pluto Manager
Performance level
Up to PL e
Safety category
Category 4
Safety integrity level
SIL 3
Diagnostic coverage
High
Protection rating
IP20 terminals / IP40 enclosure
Connection type
Screw connection
Conductor cross-section
0.34–4 mm²
Mounting
DIN rail
Height
84 mm
Width
45 mm
Depth
120 mm
Weight
0.39 kg
GTIN / EAN
7320500410561
HS Code
85371091
Country of Manufacture
Sweden
Frequently Asked Questions
What is the ABB Pluto B22 2TLA020070R4800?
The Pluto B22 is a compact programmable safety controller or Safety PLC with Pluto safety bus communication, designed for monitoring safety devices and implementing programmable machine-safety functions.
How many inputs and outputs does the Pluto B22 provide?
The Pluto B22 provides 22 total I/O, consisting of 14 dedicated failsafe inputs and 8 configurable channels that can operate as non-failsafe outputs or additional failsafe inputs.
Does ABB 2TLA020070R4800 have failsafe outputs?
No. The Pluto B22 has no onboard failsafe outputs. It is an input-focused Pluto controller and can exchange safety information with other compatible controllers through the Pluto safety bus.
Does the Pluto B22 include the Pluto safety bus?
Yes. The Pluto B22 includes the Pluto safety bus, allowing safety-related information to be exchanged with compatible Pluto controllers in a distributed machine-safety system.
What are the dimensions of the ABB Pluto B22?
The Pluto B22 measures 84 mm high, 45 mm wide and 120 mm deep and has a net weight of approximately 0.39 kg.
Trusted by Machine Builders Worldwide
ABB Pluto programmable safety controllers provide machine builders, automation engineers and system integrators with compact, flexible and distributed safety-control technology for protecting industrial machinery, automated production equipment and personnel.
Manufacturer
ABB
Series / Category
Pluto
Product Name
Pluto B22
SKU / Product ID
2TLA020070R4800
Product type
Programmable safety controller / Safety PLC
Supply voltage
24 V DC ±15%
Total I/O
22
Dedicated failsafe inputs
14
Configurable I/O
8 non-failsafe outputs / failsafe inputs
Maximum failsafe inputs
22
Maximum non-failsafe outputs
8
Failsafe outputs
None
Maximum analogue inputs
1
Maximum StatusBus inputs
4
Pluto safety bus
Yes
Supported protocols
MODBUS ASCII, Pluto Safety Bus, StatusBus
Programming software
ABB Pluto Manager
Performance level
Up to PL e
Safety category
Category 4
Safety integrity level
SIL 3
Diagnostic coverage
High
Protection rating
IP20 terminals / IP40 enclosure
Connection type
Screw connection
Conductor cross-section
0.34–4 mm²
Mounting
DIN rail
Height
84 mm
Width
45 mm
Depth
120 mm
Weight
0.39 kg
GTIN / EAN
7320500410561
HS Code
85371091
Country of Manufacture
Sweden
No documents available for this product.
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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...