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I/O access error

11/4/2011 2:39 PM	Rate (0)
TerminalBuzz Gold Member Joined: 11/4/2011 Last visit: 1/12/2026 Posts: 256 Rating: (53)	Hello. What is I/O access error? Does it occur when power is shut off the DI signal module (in modules without diagnostic capability) ? And if not, how can I get informaton about SM module power loss?
	Last edited by: O_Moderator at: 11/7/2011 10:23 AM new subject after splitting from /tf/WW/en/Posts/17754#top Last edited by: Andrew6 at: 11/4/2011 2:51 PM
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11/5/2011 7:49 AM	Rate (0)
Niranjan Prasad Posts: 691 Rating: (37)	Andrew6 What is I/O access error? Does it occur when power is shut off the DI signal module (in modules without diagnostic capability) ? And if not, how can I get informaton about SM module power loss? I/O Access error is the Address assigned in the Program but physically not accessed. Proble may be incorrect Hardware Configuration / Programming. Or the Module is not accessed , because of Module being Faulty or the IM having that Module is Switched Off/ Faulty
Niranjan Prasad Posts: 691 Rating: (37)
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11/7/2011 1:20 PM	Rate (0)
AGR Posts: 43 Rating: (1)	I/O access error may also occurs for wrong addressing too... Just check your code and Specs of CPU...
AGR Posts: 43 Rating: (1)
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11/8/2011 7:57 AM	Rate (0)
TerminalBuzz Gold Member Joined: 11/4/2011 Last visit: 1/12/2026 Posts: 256 Rating: (53)	Thanks. But I haven't got a project yet, I'm just reading manuals and getting ready for making a project in PCS7. And at the moment the main question is: how can I get informaton about SM module power loss? (module without diagnostic capability)

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11/14/2011 3:18 PM	Rate (0)
reza.maher Advanced Member Joined: 11/14/2011 Last visit: 2/29/2024 Posts: 16 Rating: (0)	Hi if the CFC programmed with module drive you can easily see the status of the module in Diagnostic screen of the OS or MS . but diagnostic is not possible for loss of voltage because your module is not support this type of interrupt .

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