Page 254 - PLC Automation
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252              MAIN CATALOG PLC AUTOMATION



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          Application descriptions


          Safe communication between safety CPUs


          using PROFINET/PROFIsafe over 5G





          —                Real-time exchange of high volume process and   Now hybrid interconnected PLC control systems
          01 A modern distribution   safety data                       can extend traditional centralized or distributed
          center comprises several
          independent systems    ABB has moved from using just one central PLC   control. As such, each controlled machine can
          including conveyor and   controller to multiple controllers capable of    deliver high volumes of process and safety data
          lift systems, robotic
          sorting and palletizing   communicating with many machines in real-time.   in real-time, simultaneously, to several central
          processes, together   Now each machine controller can exchange big   control systems.
          with autonomous
          guided vehicles, or AGVs,   volumes of process and safety data in real-time to
          and automated stacker   more than one central control system simultane-  This solution replaces gateways which are expen-
          cranes that lift pallets
          to and from the high   ously. 5G networks can also be used to wirelessly   sive, take valuable control cabinet space and
          bay storage systems.   deliver time-critical data using PROFINET/   because they are limited to only 12 bytes of safety
          Each system needs to
          exchange its control and   PROFIsafe.                        data per gateway, cannot communicate in real-
          safety data via a central                                    time with large safety data volumes. With the new
          control system or
          distributed control    Safety CPU modules SM560-S-FD-1 (-XC) and   solution, a maximum of 1440 bytes of process
          system in an efficient   SM560-S-FD-4 (-XC) can function as both a safety   data including up to 384 bytes of functional
          and reliable manner
          so as to maintain   controller and a safety device. The modules, when   safety data can be allocated for up to four PLC
          productivity and   used with ABB’s AC500/AC500-S Programmable   controller systems, thereby providing faster
          minimize downtime.
                           Logic Controller (PLC), feature the ability to ex-  reaction to optimize the production and improve
                           change process and safety data, not only from   the predictive maintenance that leads to less
                           one controller to multiple devices but also from   downtime.
                           one device to multiple controllers, using PROFI-
                           NET/PROFIsafe shared device functionality.

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