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| 6/7/2011 8:35 AM | |
Joined: 5/24/2007 Last visit: 4/24/2024 Posts: 284 Rating:
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For all Ethernet solutions, if you are going with CAT5, CAT6 cables is 100m and then you need a switch/router. But this you can getto about 1kmby using fibreoptic. All serial communication like Profibus, MODBUS etc. the lengths are in the range of 100 to 1200m depending which baudrate you are using. For MPI it is maximum 50m. Profibus PA is used as a replacement for 4 to 20mA. Basically from transmitters instead of converting from the A/D conversion and then t o 4 to 20mA, the digital is directly sent over using profibus protocol. So it is completely different from the conventional instruments. Have a look at the following link for more information on Profibus (including PA) http://www.profibus.com/downloads/ Krish |
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| 6/7/2011 9:09 AM | |
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Posts: 111 Rating:
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Hi Krish, |
| 6/7/2011 9:58 AM | |
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Posts: 947 Rating:
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Hi, r2407 in additional: These characteristics (from Krish) are just for copper cable to optical cable length increases significantly |
| 6/7/2011 10:32 AM | |
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Joined: 5/24/2007 Last visit: 4/24/2024 Posts: 284 Rating:
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Hi |
| 6/9/2011 6:43 AM | |
Joined: 12/12/2005 Last visit: 3/17/2024 Posts: 180 Rating:
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Hi r2407, Here is also posts forinformation about wireless possibilities. /tf/WW/en/Posts/58409 profibus cable length page 21 http://www.automation.siemens.com/w2/efiles/pcs7/pdf/76/prdbrief/kb_profibus_en.pdf regards Heksu |
Last edited by: Heksu at: 6/9/2011 6:48 AM"Beer is proof that God loves us and wants us to be Happy"-Benjamin Franklin |
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| 6/13/2011 3:18 PM | |
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Posts: 241 Rating:
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You can find an attachement. How your DP/Asi- module should look like in STEP7 HW. Also see the Link for manuals/Technical spec. |
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