9/17/2008 10:51 AM | |
Posts: 2 Rating: (0) |
hi friends, what are the major difference between s7300 and s7400 |
9/17/2008 11:39 AM | |
Joined: 9/27/2006 Last visit: 9/22/2024 Posts: 12282 Rating: (2685) |
Wow! Quite a question there, mani. Where to begin: size, power, speed, memory, backplane, communication connections, redundancy, price,...? too many variables . Both are modular PLCs, but the S7-300 is considered a mid-range unit, and the S7-400 is high-end: more powerful in all areas (although the most powerful S7-300s are quite nearthe performance levels ofthe lowest S7-400s). Both are programmed with Step 7, both have the same program structure, the same networks, the same available function modules. Only the S7-400 offer true hotbackup redundancy. So giving a simple answer will be difficult. Start by looking at the following Siemens Controllers portal; there are links to all the S7 families (S7-200, S7-300, S7-400 and C7) that you can study and have a first perception of the full differences. https://www.automation.siemens.com/simatic/portal/html_76/product-navigation-controller.htm Hope this helps, Daniel Chartier |
9/17/2008 2:13 PM | |
Joined: 9/28/2005 Last visit: 8/27/2024 Posts: 2957 Rating: (242) |
What do you mean ? |
Best regards, |
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9/17/2008 2:16 PM | |
Posts: 487 Rating: (45) |
Darius, I could not find any document from Siemens stating communication speed comarison from S7-300 to S7400. I have heared people talk about K-bus. |
9/18/2008 10:43 AM | |
Posts: 13 Rating: (0) |
hi friends, thanks for your replyyyyyyyyyyyy |
9/18/2008 10:44 AM | |
Posts: 13 Rating: (0) |
hi friends, which plc is most suitable in process industry S7 300 or S7400 |
9/18/2008 11:59 AM | |
Joined: 9/27/2006 Last visit: 9/22/2024 Posts: 12282 Rating: (2685) |
Hello Krishna; That will depend on your process, basically the number of I/Os, the number of loops, the expected response time of the controller.... For a very small plant or uncomplicated process a network of S&-300 CPUs could do the job. But basically in Siemens Process Control System (PCS 7) only the S7-400 CPUs can be used as controllers. That would give you an idea of what Siemens would thionk on that subject. You can have a look at the Siemens Process control Portal for more detailed descriptions: https://pcs.khe.siemens.com/index.aspx?nr=2122 Hope this helps, Daniel Chartier |
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