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ASI modules - Automatic adressing on replacement

Created by: Navnag at: 12/17/2007 4:16 AM (3 Replies)

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12/17/2007 4:16 AM	Rate (0)
Navnag Platinum Expert Joined: 11/21/2007 Last visit: 12/23/2024 Posts: 2325 Rating: (309)	Hello I understand that if you replace ASI modules in a network, the new module automatically takes the old address. How does this work ? Does this mean that if I have to replace more than one module I must replace one by one ? Regards Navnag
	There is no such thing as the last bug in a program There are no stubborn bugs, There are only stubborn Debuggers.
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12/17/2007 5:08 AM	Rate (1)
dchartier Grandmaster-Expert Joined: 9/27/2006 Last visit: 1/25/2025 Posts: 12330 Rating: (2702)	Hello navnang; It depends on the master, it depends also on the slave compliance. I have worked with As-i slave modules that refused to be asddressed by anything except the As-i programmer, even though the master supported automatic address replacement. Both CP343-2 and CP243-2 from Siemens support the function "automatic address programming", under specific confditions. You will find the manual link to trhe CP343-2 here: http://support.automation.siemens.com/WW/view/en/5581657 Attached is a view of the requirements for the master to re-address a defective slave replacement node while the bus is active. Hope this helps, Daniel Chartier Attachment As-i_address_replacement.jpg (258 Downloads)

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12/17/2007 9:05 AM	Rate (0)
Navnag Platinum Expert Joined: 11/21/2007 Last visit: 12/23/2024 Posts: 2325 Rating: (309)	Dear Daniel Thanks for the details. I am using DP - AS Convertor 20E and Siemens S22.5 & S45 Panel mounted AS Interface modules. I understand from AS 20E manual that it supports automatic addressing so I guess it should work. Thanks Navnag
	There is no such thing as the last bug in a program There are no stubborn bugs, There are only stubborn Debuggers.
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10/31/2016 1:29 PM	Rate (0)
Min_Moderator Platinum Member Joined: 9/3/2014 Last visit: 3/13/2019 Posts: 4766 Rating: (122)	New question published by AutoGen_65510 is split to a separate thread with the subject Read the error status byte of the Asi Module. Best regards Min_Moderator

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