The redundant configuration communication method of PROFINET bus can also improve the availability of the equipment. When one of the CPU modules fails in the redundant configuration, the standby CPU module will automatically take over the control function, which can achieve fast switching to prevent data loss and control failure. Of course, the price is not cheap.Īmong the three models, CPU1513R and CPU1515R are generally suitable for small and medium-sized projects. Among them, CPU1513R and CPU1515R are suitable for small and medium-sized projects, and CPU1517H is suitable for large-scale projects. The newly added product models are: CPU1513R, CPU1515R and CPU1517H. Now we finally say goodbye to the past and start to enjoy the convenience brought by Portal programming. How many redundant systems have been signed with the owners can only be completed with the S7-400 series in tears, how much I hope to use the Portal TIA to complete the task of design and configuration, but can only silently work overtime at night to rewrite Step 7 program block. What a celebratory and cheering news this is.
For the first time, redundant configuration has been added. Several models were added to expand its product line. Siemens began to further improve the functions of the S7-1500. The situation began to change in the second half of 2018. In the previous version of S7-1500, redundant configuration was not supported, which led to many projects that needed redundancy had to use S7-400 PLC.
The task of replacing the S7-400 series cannot be completed at once, because Siemens has too many S7-400 PLC stocks, so Siemens can only use the method of limiting the functions of the S7-1500 to gradually complete the replacement of the S7-400 PLC.
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