AS-i Safety
The AS-i system is distinguished by its special yellow profile cable. The cable connects all sensors, transducers and actuators on the network to a master system. The component parts of a system can include both non-safe and safe products. This means that both operational and safety related products can be mixed in a network. The bus system drives a Master-Slave (node) configuration where each I/O module corresponds to a common master. Communication takes place through the yellow cable which also provides the nodes with supply voltage.
The AS-i system provides benefits both when the system is planned and installed. A single network can, for example, be divided into monitoring and control of different work zones. The zones can be dependent on each other or not, even though they are controlled and are connected to the same general process.
Connection is simple as all units are connected to the same AS-i cable/bus. The risk of incorrect wiring is thereby minimised. Each safety node, i.e. safety product, has its own address on the AS-i bus along with a unique safety code. The advantage of safety within AS-i is that it is easy to introduce changes without significant costs compared to traditional safety systems that require new cable running from the electrical cabinet for each new protection.
The AS-i cable can be connected to the safety products separately or through the adaptation device Urax. Some components have an integrated AS-i node and are connected via an M12 connection directly to the yellow AS-I cable. Traditional products without an integrated AS-i node need to be connected via the safety node Urax. In both cases, the highest level of safety is maintained.
Pluto AS-i is a safety PLC designed for the AS-i Safety concept. 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. As a standard Pluto, Pluto AS-i is an All-Master system with its own safety bus and is designed for dynamic and static safety circuits where inputs and other information are shared across the bus. 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.