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Size & number of DBs

9/26/2009 9:50 PM	Rate (0)
Tomy Master Platinum Member Joined: 5/4/2009 Last visit: 12/21/2025 Posts: 916 Rating: (40)	Dear experts... How can I know how many DBs I can create & the size of it for a given CPU? Warm regards. Tomy the Master.
	Aim Higher
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9/27/2009 3:18 AM	Rate (1)
fritz Diamond Expert Joined: 10/7/2005 Last visit: 12/29/2025 Posts: 3052 Rating: (1062)	Hello Tomy Master Catalogue ST70 has this info as well as the "CPU Technical Specification manual" (seelinksbelow): SIMATIC S7-300 CPU 31xC and CPU 31x: Technical specifications SIMATIC S7-400 S7-400 Automation System, CPU Specifications P.S: You may also find Aret's answer in thethread"DB Size" useful. I hope this helps.
	Cheers fritz The advice and opinion given in this thread is that of the author and does not necessarily reflect the views of I S Systems Pty Limited. To find out how I S Systems can help you with your automation needs please visit www.issystems.com.au.
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9/29/2009 2:33 PM	Rate (1)
mechatronics85 Posts: 6 Rating: (1)	you can know all tis information and more by using C01 cataloge enter parts number and go to technical specifications then you can take all this information
mechatronics85 Posts: 6 Rating: (1)
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This contribution was helpful to 1 thankful Users Tomy Master

9/30/2009 3:17 PM	Rate (3)
Saravana kumar Platinum Member Joined: 2/6/2009 Last visit: 9/26/2025 Posts: 940 Rating: (119)	HI, It is very simple to get the details about the address areas supported (including the DB's) by a PLC. Just open your program -> go online with PLC or Simulator -> Right click the station (SIMATIC 300) -> goto PLC -> Module Diagnostics (or press CNTRL+D). Select the perfomance data menu for the New Module information Window and you can get the details about the OB, DB, M,FB,FC everything.Use the print option to get the detail spec of that CPU. The above point are given as print screens in the below attachment. Attachment data's.zip (385 Downloads)
	_______________________________________________________________ Best Regards T.Saravana Kumar "All for the Best"
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This contribution was helpful to 1 thankful Users Tomy Master