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GuardPLC 2000 Safety Controller
Communication
GuardPLC safety controllers communicate on a Safe Ethernet communications network called GuardPLC Ethernet. The network is TÜV-certified for use in safety applications up to EN954 Category 4 and SIL 3, and can be used for distributed safety I/O and peer-to-peer communications between GuardPLC controllers, as well as programming using RSLogix Guard PLUS! software. And because it’s Ethernet, you use standard category 5 cables, switches and routers.
Using GuardPLC distributed I/O, you can place your safety I/O where your safety field devices are located, reducing wiring costs. Peer-to-peer communications allow GuardPLC controllers running their own programs to interlock with each other for applications that need to link one manufacturing cell to others.
In addition, the GuardPLC 1200 and GuardPLC 2000 controllers have an RS-232 ASCII port that lets a standard PLC read safety system status out of the GuardPLC controller. GuardPLC 1600 and 1800 controllers have an RS-485 ASCII port and are available with either Modbus RTU slave or PROFIBUS DP slave communications. Using RSLogix Guard PLUS! programming software, select the tags you wish to read from the GuardPLC controller, and the data is sent every time the connected device asks for it.
NetLinx Integration
The ever-increasing demand for both enhanced plant productivity and improved workplace safety has fueled a trend toward integrated safety control and standard control systems. Control system users now expect their safety systems to possess all of the efficiencies and conveniences of their standard controls. Today's modern manufacturing plants will not accept safety systems that compromise productivity. Both machine builders and end users expect that the cost of implementing and maintaining a safety system will continue to drop without reducing the level of protection to the user.
The first level of integrating your GuardPLC controller into your standard control system is at the information network level. The GuardPLC 1600 and 1800 controllers let you to accomplish this easily with embedded EtherNet/IP protocol. Able to run EtherNet/IP protocol at the same time as safety-rated GuardPLC Ethernet protocol, the GuardPLC controller uses EtherNet/IP protocol to communicate status about the safety control system to other standard devices such as PLCs (ControlLogix®, FlexLogix™, CompactLogix™, SLC™ 500 or PLC-5®), HMIs (PanelView™ and VersaView®) and others. The GuardPLC controller can even control standard I/O, like Flex I/O and Point I/O, on an EtherNet/IP network. This capability lets you integrate your GuardPLC on the EtherNet/IP network already running in your plant.
The GuardPLC 1600 and GuardPLC 1800 controllers can also communicate with devices on the DeviceNet™ safety network via the DeviceNet Safety Scanner. The scanner communicates with CompactBlock™ and ArmorBlock® Guard I/O™, providing safety I/O data and status information to the GuardPLC controllers. The safety scanner also allows for standard DeviceNet communication to devices such as standard PLCs, HMIs, and standard I/O.
GuardPLC Typical Configuration
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