3/27/2019 8:51 AM | |
Joined: 1/31/2019 Last visit: 3/10/2023 Posts: 5 Rating:
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Hi, I have a question regarding uploading PLC user program to S7-400 system. The system consists of a two S7-400 CPU (CPU A and CPU B). CPU A is a master and CPU B is a backup. The CPUs communicate with each other via an optolink. The idea behind two CPUs is that if the CPU A goes into a stop then the CPU B should take over and continue without stopping in the operating site. All program blocks are located in the CPU A. I wonder how to upload the program. Do I have to upload the program on both CPUs or it is enough to upload only in CPU A? Regard Sena ------------------------------------------------------------------------------------------ |
Last edited by: Jen_Moderator at: 3/27/2019 10:38:34 AMNew subject after splitting |
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3/30/2019 5:58 AM | |
Joined: 12/9/2010 Last visit: 10/8/2022 Posts: 623 Rating:
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Hi, The process you are calling upload is download. As per description, it appears that The CPU is H system. Please refer H system manual 'Fault tolerant system' available in installation documentation.
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