Why should I use the Pluto Safety PLC?
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...to simplify design and alterations of safety systems!
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Pluto is a new “All-Supervisor” Safety PLC concept that simplifies the design of safety systems and achieves the highest safety (category 4) according to EN 954-1. The key difference between Pluto and conventional safety PLCs is that there is no “supervisor-subordinate” relationship between the control units connected to the safety bus. All Plutos are “supervisor” units and can see each others’ inputs and outputs. Using this concept, each Pluto can make decisions about its own immediate safety environment.
This concept enables simple communication and easy alterations of the safety system. With the use of a “gateway” device, information from a Pluto network can be transferred to other bus systems thereby creating even larger systems. Gateway units are readily available for a number of different bus-systems - i.e. Profibus, CanOpen, Device Net.
Pluto offers an economic solution for both single machine and for large integrated machine systems. Of Pluto’s 20 I/O, 8 can be configured as both inputs and outputs (sometimes even as inputs and outputs at the same time), 4 are failsafe outputs independent of each other. 32 Plutos can be connected to a twisted pair safe bus system. This enables the amount of physical I/O connections to be expanded from 20 to 640.
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...to supervise safety devices!
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Most safety devices on the market can be connected directly to the Pluto unit. Only half the number of I/O are required when using dynamic sensors from JOKAB SAFETY. Dynamic sensors enable category 4 in a single channel system. Up to 10 sensors can be connected in series to one input. For example, Eden non-contact sensors, SPOT light beams and Tina
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adaptors (interfacing to emergency stop push buttons, safety switches, etc.) can be connected in series to one input on the Pluto. Even mechanical switches can be connected to the “dynamic safety circuit using JOKAB SAFETY’s Tina adaptors. Up to 150 safety devices can be connected to one Pluto and maintain category 4 per EN 954-1.
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