SIMATIC S7-200/300/400, Step7, PCS7, CFC, SFC, PDM, PLCSIM,
SCL, Graph, SPS-VISU S5/S7, IBHsoftec, LOGO ...
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Nedjeljko
- Posts: 118
- Joined: Mon Nov 05, 2007 10:59 pm
- Location: Croatia
Post
by Nedjeljko »
Hi..
I have question about Profibus redundancy...
Is it posible to use just profibus cable to make redundancy ring for system...
...I know for optical ring and transfer from opto to Profibus...
...but is anyone have make something like ring with standard Profibus cable
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CoMod
- Site Admin
- Posts: 4049
- Joined: Thu Feb 16, 2006 3:25 pm
- Location: Russia
Post
by CoMod »
Nedjeljko wrote:Is it posible to use just profibus cable to make redundancy ring for system...
No. Only optical ring is possible.
Or use 400H with 2*IM153 hardware redundancy stations - also not ring.
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Nedjeljko
- Posts: 118
- Joined: Mon Nov 05, 2007 10:59 pm
- Location: Croatia
Post
by Nedjeljko »
...I think that Im specified incorectly my question...
...I thougt about electrical ring with Profibus cable...
...It means if somwhere in ring wire break comunication goes trough other side...