Each input to the system is connected to each processor, each having their own memory and executing their own program. The processors continuously compare the results with each other to ensure integrity of data.
It is very easy to program as it is an “all master” system. Up to 32 Pluto devices can utilise each others inputs and individually control their own outputs via their own internal program. Each Pluto has 20 I/O, of which 4 are independent safety outputs. It is also possible to connect dynamic safety circuits to the inputs of Pluto.