The Safety Handbook ABB Jokab - Automation Systems and Controls

Pluto with a safety busPluto models with a safety bus controls and monitors safety for dispersed systems– large aswell as small systems.Profibus DPDeviceNetCANopenProfinetEthernet/IPModbus TCP20/46 I/OGatewayfor twoway bus communicationbetweenPluto and othercontrolsystems.HMIA HMI-terminal iseasy to connect toone or more Plutosthrough the Modbuscontact.Absolutgivare8 single- or multiturnabsolute encoders can beconnected.Pluto ManagerA free of charge softwareis available on our website.Pluto versions with bus have the same properties as single-Pluto unlike bus communication. With the help of the Plutobusnetworks can be created with multiple Plutos in interaction.Gateways can be connected to the Pluto bus forcommunication with other systems. The gateway modelsGATE D2 and C2 can also be used as an extension of thebus cable to extend the Pluto network. The fact that Pluto isan All-master system means that each Pluto device controlsits outputs locally, while it is just as easy to read the inputsof other Pluto-units as it is to read its own. It is also easy toboth read and write to global memory locations availableacross the Pluto bus. The PLC program is created usingthe Pluto Manager freeware and is distributed to all Plutounits. You can also connect speed and position sensorsvia the Pluto bus.Current monitoring (Pluto A20 only)Pluto A20 can monitor the current through the IQ16 andIQ17 outputs. The function is designed for, but not limitedto, ensuring that the muting lamps are working. Thehardware for current monitoring is not designed with individualredundancy, which means that the function must beused dynamically if it is to be used in a safety function. Thismeans that the current must be read and evaluated bothwhen the output is enabled and disabled.2:12ABB