7/25/2015 12:21 PM | |
Joined: 12/22/2006 Last visit: 1/25/2022 Posts: 1742 Rating: (308) |
Hello, Here an FAQ "What is multicomputing mode and what are the differences to operating in the segmented subrack?" with some points already. 1) You could of course use 4 CPUs in different racks. But when the CPUs are running in multicomputing they are more "linked" to each other than truely separated CPUs. - The CPUs involved automatically change their modes synchronously. In other words, they start up together and change to STOP mode together. - there is a specific OB60 for multicomputing interrupt. - you can configure an S7 connection between CPUs that uses the PLC Internal bus. 2) The user program runs on each CPU irrespective of the user programs in the other CPUs. This makes it possible to execute controller tasks in parallel. If a certain part of your system is supposed to be processed quickly, separate the relevant program section from the overall program and have it processed by a dedicated, “fast” CPU. My answer is just an indication of some major differences. |
Last edited by: jklm at: 7/25/2015 12:23:29 PMBest regards |
|
This contribution was helpful to1 thankful Users |
7/26/2015 8:48 PM | |
Posts: 303 Rating: (3) |
ok. i understood, let me ask you one more question In the section 8.1.2 "If part of your system must be processed quickly, take these program sections out of the main program and run them on a separate fast CPU." i did not understand this sentence, kindly explain this one too Here i attached section 8 part from the main manual AttachmentConfiguring Hardware and Communication Connections With Step 7.pdf (578 Downloads) |
7/27/2015 12:19 PM | |
Posts: 303 Rating: (3) |
Thank You. |