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"303 Plc Link Interrupt" message

Created by: obyone_2 at: 9/1/2009 9:16 PM (3 Replies)

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9/1/2009 9:16 PM	Rate (0)
obyone_2 Posts: 39 Rating: (0)	Hello everyone, I have little big problem about OP-25 HMI that communicate with 115U cpu 941B. When i am teaching a new value about the execution the machine, the message on the screen that " 303 Plc Link Interrupted". So i can not change variables:( i am looking forward for your help, thanks.
obyone_2 Posts: 39 Rating: (0)
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9/2/2009 9:26 AM	Rate (0)
Wizard Diamond Expert Joined: 4/24/2006 Last visit: 2/14/2025 Posts: 8848 Rating: (1181)	Dear obyone_2, Here is a link to communciation manual: http://support.automation.siemens.com/WW/view/en/1137086 See appendix A for system messages and possible remedie. 303 Fault in connection with PLC S5: this error may occur when transferring large data records Best regards, Wizard

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9/4/2009 8:34 AM	Rate (0)
obyone_2 Posts: 39 Rating: (0)	thanks, when i restart the coros op25, reenergized, everything is fine. But after a while the same error messageappears again. How to i fix this problem, isi need change the operating panel?
obyone_2 Posts: 39 Rating: (0)
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9/4/2009 9:22 AM	Rate (0)
Wizard Diamond Expert Joined: 4/24/2006 Last visit: 2/14/2025 Posts: 8848 Rating: (1181)	Dear obyone_2, I have no idea Perhaps anybody else have. Or you can ask Simatic Hotline, perhaps they can help and suggest what to do. Best regards, Wizard

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