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Conversion of S7400 Program to S7300 Program

Created by: Lucky123 at: 7/25/2009 11:43 PM (5 Replies)

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7/25/2009 11:43 PM	Rate (0)
Lucky123 Gold Member Joined: 12/20/2008 Last visit: 9/3/2025 Posts: 556 Rating: (237)	I am trying toreuse the Program (OB, FC, FB Blocks) from S7400 to S7300, however while downloading those blocks in the PLC memory, I am getting the error the program can't be loaded to the PLC memory, but its not showing me where is the problem in the program or whats the reason its unable to download. When I click on the option detail, it does not provide me sufficient information to track the problem, is there any way to find out whats causing the problem in conversion or downloading?

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7/25/2009 11:46 PM	Rate (0)
IBN-Service Posts: 8946 Rating: (1000)	lalit I am trying toreuse the Program (OB, FC, FB Blocks) from S7400 to S7300, however while downloading those blocks in the PLC memory, I am getting the error the program can't be loaded to the PLC memory, but its not showing me where is the problem in the program or whats the reason its unable to download. When I click on the option detail, it does not provide me sufficient information to track the problem, is there any way to find out whats causing the problem in conversion or downloading? Try block by block to find out. Read also answer in first thread...
IBN-Service Posts: 8946 Rating: (1000)
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7/26/2009 9:28 PM	Rate (0)
umencho Grandmaster Joined: 3/21/2006 Last visit: 1/10/2026 Posts: 10247 Rating: (1183)	Hello, And also put S7-300 PLC into STOP mode. Regards, Hristo Mihalev

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7/27/2009 9:21 AM	Rate (0)
Wizard Diamond Member Joined: 4/24/2006 Last visit: 1/9/2026 Posts: 9104 Rating: (1202)	Dear lalit, Please check properties of S7-300 CPU. Perhaps the programm of S7-400 uses too high addresses for Memory flags or I/O Best regards, Wizard

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7/27/2009 10:11 AM	Rate (0)
Aret Posts: 2348 Rating: (265)	Also some standart blocks are different for 300 and 400 - some maybe you should recreate standart FC/FB.
Aret Posts: 2348 Rating: (265)
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7/29/2009 8:18 AM	Rate (0)
Jazz_M Posts: 1121 Rating: (86)	Dear Lalit Please check the module information ----> Performance data Tab for the cpu that u are using There is a limitation on the FB and FC number that uhave used like FB 1024 or FC1024 is the limit for S7300 315-2dp May be that the size of the program is not suffcient for the given memory card that u have used in the S7300 cpu Please go for higher MMC card capacity. Best regards Tagolover
Jazz_M Posts: 1121 Rating: (86)
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