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Wireless Industrial Communication - Scalance

Created by: Bogdan462 at: 3/29/2012 1:25 PM (11 Replies)

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3/29/2012 1:25 PM	Rate (0)
Bogdan462 Posts: 4 Rating: (0)	Dear Users and Moderators, I have the folowing project to do (one photo = 1000 words, so please find in the attachement what is all about). So, the client want full modernization of one stack machine (i attached one photo with this machine, pag2). The operator can control this machine from the machine Cabin or from distance, let's say, from one buliding SA39 (near to machine). Now, if the operator will stay in Building SA39(control room) he will control the machine wireless. My problem is that i dont know wich SCALANCE i should choose for this communication. (This is my first project with wireless). On this wireless communication i will send/recive max 300 signals and also i want to display the same screens on HMI from Control Room what are displayed in Control Cabin. In present I dont buy nothing from the equipment. Attachment Poejct SCALANCE.pdf (290 Downloads)
Bogdan462 Posts: 4 Rating: (0)
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3/29/2012 4:03 PM	Rate (1)
Rated X Posts: 1547 Rating: (129)	Hello Bogdan, the easiest way would be to establish an Access Point <-> Client Connection. If possible for you, you could use a SCALANCE W784-1 (Access Point) with a SCALANCE W746-1(Client)whichare IP30 approved. This manual will help you to configure the modules: http://support.automation.siemens.com/WW/view/en/42784493
Rated X Posts: 1547 Rating: (129)
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This contribution was helpful to 1 thankful Users Bogdan462

3/29/2012 4:51 PM	Rate (0)
Bogdan462 Posts: 4 Rating: (0)	Rated X, thanq you very much for your help.
Bogdan462 Posts: 4 Rating: (0)
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3/30/2012 12:40 PM	Rate (1)
INS Gold Member Joined: 4/6/2006 Last visit: 2/5/2024 Posts: 604 Rating: (56)	Hi Bogdan, I agree with Rated_X but I would liek to add some information. You want to do PN IO Communication please be aware that the shortest reaction time you have in this case is 16 ms (set in Step 7). Then you should think about the frequencies you'd like to use. For control applications with PN IO I would suggest to use 5 GHz. Please make sure your antenna covers this frequencies. And please also consider the range. The antennas you used in your picture are designed for direct mounting to SCALANCE W788-1 RJ45 products suppoorting 11n. They are not designed to be used as detached antennas. I would suggest here another antenna probably the ANT793-6MN. This antenna has a higher gain and there for you could cover a larger area. This antenna is also ideal for detach mounting.
	Best regards, INS
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This contribution was helpful to 1 thankful Users Bogdan462

3/30/2012 1:52 PM	Rate (0)
Bogdan462 Posts: 4 Rating: (0)	Hello INS, Thank you for your additional informations, really useful; By the way, I'm not forced to use Profinet communication. You think i should choose another type of communication wich is match better with Wireless Communication? INS Hi Bogdan, I agree with Rated_X but I would liek to add some information. You want to do PN IO Communication please be aware that the shortest reaction time you have in this case is 16 ms (set in Step 7). Then you should think about the frequencies you'd like to use. For control applications with PN IO I would suggest to use 5 GHz. Please make sure your antenna covers this frequencies. And please also consider the range. The antennas you used in your picture are designed for direct mounting to SCALANCE W788-1 RJ45 products suppoorting 11n. They are not designed to be used as detached antennas. I would suggest here another antenna probably the ANT793-6MN. This antenna has a higher gain and there for you could cover a larger area. This antenna is also ideal for detach mounting.
Bogdan462 Posts: 4 Rating: (0)
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3/30/2012 1:57 PM	Rate (1)
INS Gold Member Joined: 4/6/2006 Last visit: 2/5/2024 Posts: 604 Rating: (56)	Hi, According to your drawing you use an ET200M then you need Profinet according to my information.
	Best regards, INS
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This contribution was helpful to 1 thankful Users Bogdan462

4/27/2012 1:55 PM	Rate (0)
JD_techflirt Posts: 95 Rating: (1)	HI Bogdan, I have used Scalance W786-1PRO for somwhat similar application. Bt we dont control these machines from distant locations as it is dangerous, we only use it to send and receive critical information from both side ie from MT266 and SA 39. We have used W786-1PRO on both sides.We configuredTCP/IP(ISO) on both PLCs. Hope I can help. Best Regards, JD
JD_techflirt Posts: 95 Rating: (1)
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4/27/2012 3:29 PM	Rate (0)
SolutionFinder Posts: 559 Rating: (87)	Dear Bogdan462 I saw your PDf file for the configuration. You can use Scalance SCALANCE W784-1 (Access Point) with a SCALANCE W746-1(Client) as Rated X has already informed. But on the other side please look for the distance & Intereference also arround that area. Becuase we have already used this configuration but as soon as Wireless devices goes out of range, it breakes communication & BF comes on CPU. The signals also depends on Wind directions & atmosphere conditions. So take care for that.
SolutionFinder Posts: 559 Rating: (87)
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4/29/2012 5:28 PM	Rate (0)
INS Gold Member Joined: 4/6/2006 Last visit: 2/5/2024 Posts: 604 Rating: (56)	SolutionFinder Dear Bogdan462 The signals also depends on Wind directions & atmosphere conditions. Dear SolutionFinder, The first part of your answer was okay but this last part which I quoted is not true there for I'd like to comment on that part. An electromagnetic wave like a radio wave (which is used by Wireless LAN) is not affected by Wind at all. And allso a change in the Atmosphere (atm) isn't affecting a electromagnetic wave in any sense. What could affected radio waves is extremely heavy rain and then even the loss is so low that it's not to be taken into account for stable connections. Only an already very unstable connection could get broken by such weather conditions by other there might be a temporarily speed bump.
	Best regards, INS
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This contribution was helpful to 3 thankful Users fritz SolutionFinder Amit_86

4/30/2012 8:21 AM	Rate (0)
gre_m Posts: 947 Rating: (45)	Hi! There is an antenna for wireless networks. It is designed as a cable c slotted grooves and laid along the motion. It has no lack of such a dependence on the weather and protected from interference.
gre_m Posts: 947 Rating: (45)
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This contribution was helpful to 1 thankful Users SolutionFinder

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