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Modbus Sample Project Simatic Manager

Created by: Saravana kumar at: 6/13/2010 3:54 PM (131 Replies)

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Thanks 40

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4/20/2011 9:10 AM	Rate (0)
Saravana kumar Gold Member Joined: 2/6/2009 Last visit: 3/26/2025 Posts: 939 Rating: (119)	Hi, I have checked communication manual and it is clearly given that there is no need of scaling for any Modbus data. You are getting all other modbus data's in the correct format thatmeans your program is perfect. Please contact the EM6400 customer support about the issue.
	_______________________________________________________________ Best Regards T.Saravana Kumar "All for the Best"
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4/22/2011 7:31 AM	Rate (0)
Niranjan Prasad Posts: 691 Rating: (37)	Ganesan_K , Here i have used one more different meter name is EM3480. In this meter i have received proper wh reading.But problem in EM6400 meter only. Better Contact your dealer for getting the proper vales of the meters. I think you have to divide the vales with some constants( may be 256) If you contact your dealer they will provide you a sheet where you will find which parameter has to be divided by which value. i have also faced the same value. Right now I don't have that sheet , so better you contact your dealer/Scheineder.
Niranjan Prasad Posts: 691 Rating: (37)
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4/22/2011 10:59 AM	Rate (0)
AnsuAbinesh Experienced Member Joined: 12/14/2010 Last visit: 1/12/2025 Posts: 117 Rating: (0)	Dear Shar, In this manual they metioned no need of any scaling andno need for divide factor.

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4/22/2011 12:03 PM	Rate (0)
Dhruva Posts: 89 Rating: (4)	Call the Dealer service Engineeron the Site. So that you can show him what you are getting. He may analyze your problem. This forum is Siemens products only. Since CP341 is a SIEMENS Product and you are getting the values in your program. The support of SIEMENS ends here. And regarding the Values you arre getting from the meter , you should call the Service Engineer of Scheineder to the Site , since Conzerv is a Schieneder Product. Hope you get the point.
Dhruva Posts: 89 Rating: (4)
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4/23/2011 8:01 AM	Rate (0)
bermuda Posts: 151 Rating: (3)	hello my firends it was a good topic and very helpful for anything about modbus. i have an idea for this project to make it better. if we can replace wired connection with radio connection it will be very better i think if we use radio modems with rs485 portfor each meters and s7-300 master it will work properly. anybody have idea for do this wireless connection of master to power meters? thanks again for this topic my friend Attachment modbus topology.GIF (1059 Downloads)
bermuda Posts: 151 Rating: (3)
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4/23/2011 3:09 PM	Rate (0)
Niranjan Prasad Posts: 691 Rating: (37)	bermuda i have an idea for this project to make it better. if we can replace wired connection with radio connection it will be very better i think if we use radio modems with rs485 portfor each meters and s7-300 master it will work properly. anybody have idea for do this wireless connection of master to power meters? thanks again for this topic my friend You are just making the simple configuration into tedious one. If you go for wireless, then you have to expend more amount in the project. Also How will you querry the the defined addresses? As by connecting the wireless modem , you can connect to the Modem by CPU, you can not connect to the Meters. Also the Modem can not querry to the meters. If you want to use Wireless Modem, then first you have to querry the meters through some PLCs and then send that querried data to the PLC through wireless Modem
Niranjan Prasad Posts: 691 Rating: (37)
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4/27/2011 2:02 PM	Rate (0)
AnsuAbinesh Experienced Member Joined: 12/14/2010 Last visit: 1/12/2025 Posts: 117 Rating: (0)	Dear Saravanakumar, I request you to send that EM6400 meter version.Please kindly do that needful. Thanks in advance.

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5/16/2011 8:34 AM	Rate (0)
AnsuAbinesh Experienced Member Joined: 12/14/2010 Last visit: 1/12/2025 Posts: 117 Rating: (0)	Dear Shar, You also have same problem in reading of CONZERV EM6400KWH parameter.?...If yes means how to solve that problem?. Kindly give us reply Thanks and advance.
	Last edited by: Ganesan_K at: 5/16/2011 8:37 AM
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5/19/2011 6:14 AM	Rate (0)
Niranjan Prasad Posts: 691 Rating: (37)	Ganesan_K Dear Shar, You also have same problem in reading of CONZERV EM6400KWH parameter.?...If yes means how to solve that problem?. Kindly give us reply Thanks and advance. Please Contact CONZERV person on the site
Niranjan Prasad Posts: 691 Rating: (37)
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5/19/2011 11:54 AM	Rate (0)
Saravana kumar Gold Member Joined: 2/6/2009 Last visit: 3/26/2025 Posts: 939 Rating: (119)	Hi, I don't remember what version of EM6400 I have used in the site. You can check the communication manual in my attachment (first thread). But as per myexperience for all version EM6400 the communication mapping used to be same. Better to contact dealer for this.
	_______________________________________________________________ Best Regards T.Saravana Kumar "All for the Best"
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