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IM308C and ET200M addressing

Created by: yac at: 8/5/2009 1:36 PM (14 Replies)

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8/10/2009 7:46 AM	Rate (0)
yac Posts: 31 Rating: (0)	fritz yac wrote: ... but I need to know , for example, IB0 corresponds to F F080H ? If not, how to find out its address? Hello again yac (memory) address F F080hex corresponds to PIB128 (IB0 is ataddress F F000hex). Not too sure how this info will help you though (using the absolute memory address to accessthe I/O'sis rarely done). Hi Fritz, Thank you for your advice. As far as I understandI need to find out the absolute empty addressesin order towritethem in the ComProfibus program for the IM308C and ET200M. Is this correct ? Regarding dip switches I will wait for the opportunity to shutdown the PLC. Best regards
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8/10/2009 10:24 AM	Rate (0)
fritz Diamond Expert Joined: 10/7/2005 Last visit: 11/11/2024 Posts: 3026 Rating: (1057)	yac Thank you for your advice. As far as I understandI need to find out the absolute empty addressesin order towritethem in the ComProfibus program for the IM308C and ET200M. Is this correct ? I start to wonder if you intend to use the FB IM308C (default number is FB 192) which would also explain why you previously asked for the "address area". Anyhow, usage of this FB192 is optional (I never had the need for it), but if you do want to employ it, the default IM308C/FB192 "DPAD parameter"address is (F)F800 and can be changed in the Master propertiesfrom your COM Profibus cofiguration. This address however has nothing to do with your ET200M I/O addresses, which are configured on the DP Slaves. Attached is an example screendump of it which shows P area I/O address assignment. Attachment COM-PB-ET200M example.jpg (374 Downloads)
	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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8/10/2009 11:20 AM	Rate (0)
Bhaskaran Posts: 107 Rating: (13)	Hi ! I pobably overlooked the fact to write as process input or output image area -- Anyway guys thanks for the points raised and dangers involved.I will keep in mind. So what is the moral of the story ??????? Switch off the system and check the address setting of each and every individual card. that's the easiest and safest way.
Bhaskaran Posts: 107 Rating: (13)
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8/10/2009 2:27 PM	Rate (0)
yac Posts: 31 Rating: (0)	fritz yac wrote: Thank you for your advice. As far as I understandI need to find out the absolute empty addressesin order towritethem in the ComProfibus program for the IM308C and ET200M. Is this correct ? I start to wonder if you intend to use the FB IM308C (default number is FB 192) which would also explain why you previously asked for the "address area". Anyhow, usage of this FB192 is optional (I never had the need for it), but if you do want to employ it, the default IM308C/FB192 "DPAD parameter"address is (F)F800 and can be changed in the Master propertiesfrom your COM Profibus cofiguration. This address however has nothing to do with your ET200M I/O addresses, which are configured on the DP Slaves. Attached is an example screendump of it which shows P area I/O address assignment. Hi fritz, Thanks a lot for your help. First of all I do not want to use FB192. Second, I investigated the actual condition of the PLC as follows: 1- By checking the dip switches, I found that the end of digital outputs is QB39 (located at central rack). End of digital inputs IB89 (located at extension rack). 2- I connected online to the PLC, and from the menu "PLC" - Output PLC Memory, I entered the starting address F F000H. I found that starting from address F F05A and till the address F F07F the value is FFFF which means that this area is empty. Refer to the attached print out from the Comprofibus program, now I am confused which address I need to enter in the reserved Iarea for the master, and which address I have to enter for the address of the DP slave? Can you help me? Best regards Attachment configuration.zip (452 Downloads)
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8/11/2009 2:12 AM	Rate (0)
fritz Diamond Expert Joined: 10/7/2005 Last visit: 11/11/2024 Posts: 3026 Rating: (1057)	yac ...now I am confused which address I need to enter in the reserved Iarea for the master "Nothing" is the short answer dear yac! All this "reserve address" does is to cause a warning if you try to use any "reserved" address areas for your DP Slaves, so leave it blank as you already know which addresses are in use in the central and expansion racks. yac ... and which address I have to enter for the address of the DP slave? The addresses that you want to use for your ET200M I/O's. Note too the inbuilt help of COM Profibus which is quite comprehensive and useful. You'll also findthe COM Profibus manual on your COM-PB CD, nonetheless, below is the link for it and also another useful one relating to IM308C which I trust will come in handy. COM PROFIBUS ET 200 Distributed I/O System with IM 308-C 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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