Pluto Safety PLC

Pluto is an All-Master system for dynamic and static safety circuits where inputs and other information are shared over the bus. Multiple safety sensors can be connected to a single input and still achieve the highest level of safety. Pluto has inputs suited for every safety product on the market, and each input function is configured in the accompanying software Pluto Manager.


  • A Safety-PLC for each system part
  • Dispersed constructions of machines
  • Great flexibility
  • Up to 10 sensors in series connected to one input
  • Software Pluto Manager free of charge
  • Handles conventional switches as well as dynamical sensors
  • Custom made safety bus
  • Pluto S20
  • Pluto S46
Single-Plutos are stand alone units and therefore perfectly suited for smaller systems that do not require communication with other Pluto units or gateways.

Pluto with bus:
  • Pluto A20
  • Pluto B20
  • Pluto B22
  • Pluto B46
Pluto versions with bus have the same features as single-Pluto with the addition of a safe Pluto-bus.

Pluto with analogue inputs:
  • Pluto D20
Pluto models with analogue inputs has the same features as Pluto versions with bus, but with the added feature that some of the inputs can be used as either ordinary safe inputs or as safe analogue inputs.

Pluto with analogue inputs and counter inputs for speed monitoring:
  • Pluto D45
In addition to analogue inputs, these Pluto model also have inputs that can be configured as counter inputs for incremental encoders as well as photocells, proximity switches etc.

Pluto output module:
  • Pluto O2
Pluto O2 is a safety output module that simplifies expansion of safety systems when more safety outputs are needed. Each Pluto O2 offers two independent safety outputs with three contacts each, which eliminates the need for extra expansion relays.

Pluto with AS-i:
  • Pluto AS-i
  • Pluto B42 AS-i
Pluto AS-i is a safety PLC designed for the AS-i Safety concept where all the safety components are connected to a single cable. Pluto AS-i has the same features as a standard Pluto, but in addition to the Pluto-bus it also has an AS-i bus interface. Pluto AS-i can act as a safety monitor on the AS-i bus or as both a master and a safety monitor at the same time. Pluto As-i can also be used as an I/O controller.

Examples of accessories for Pluto
  • Pluto Manager - software for Pluto
  • Gateways - for communication between Pluto and other control systems
  • Absolute encoders - for safe position determination
  • IDFIX - identification circuit for Pluto

Pluto Manager
Pluto Manager is a software tailored for the safety PLC Pluto. Programming is done in ladder and together with the function block creates the structure of your safety functions. The software comes with predefined function blocks approved by TÜV to facilitate the work on designing the safety functions. Pluto Manager gives you a structured overview of Pluto’s, gateways and peripheral components in large and small projects.


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