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IAE in 928B

4/1/2010 4:32 AM	Rate (0)
lambertws Posts: 58 Rating: (0)	I read in the 135U list of operation that IAE only operable in CPU948. However, it is used a lot in the CPU 928B that I am handling. Does it work actually? I only got the program, so I cannot make an experiment with it. If it works, how does it work, I cannot find enough information about it. Does it disable the addressing errors until meet the RAE, or disable them locally (only in one block or only in one network)? I am going to convert it to S7 and is it okay if I convert it to SFC40 and 41? Thanks, Lambert
lambertws Posts: 58 Rating: (0)	Last edited by: lambertws at: 4/1/2010 8:25 AM Last edited by: lambertws at: 4/1/2010 4:36 AM
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4/1/2010 2:11 PM	Rate (0)
fritz Diamond Expert Joined: 10/7/2005 Last visit: 9/14/2025 Posts: 3049 Rating: (1062)	Hello lambertws you are correct, the CPU928(B) does NOT support the IAE command. I can't unfortunately tell youhow it behaves if it tries to execute a Block that has the IAE command init (I never tried this for somewhat obvious reasons). I would expect that it will cause a so called Operation code error and call OB29, butwith IAE being a system command it may perhaps also simplyignore it (e.g. treat it as a NULL operation). Perhaps other forum users have tried this and know for sure and cantell you. Just in caseyour program is actually from a 948 CPU, the IAEcommand will disable addressing errors (and OB25 calls)until such time that an RAE command is executed. 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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4/6/2010 11:54 AM	Rate (0)
lambertws Posts: 58 Rating: (0)	Thanks for the reply Fritz. I will make the conversion in case the IAEs work and make them as comments for a while until I can do some trial.
lambertws Posts: 58 Rating: (0)
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