Profibus-DP Comm. between AB 1734 Point IO and Delta-V

I

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Irem

We have been trying to communicate Delta-V with AB through Pbus DP but when we go more than 30 modules per 1734-APB Point IO interface, we can't communicate. Although it is told that it could communicate w/64 IO modules. Is there anybody who's an idea on what the problem can be?
Regards..
 
T
You probably need a repeater. DP is based on RS485, which allows a maximum of 32 stations per network segment. You can find information on various repeaters at www.profibus.com

Tim Linnell (Eurotherm Controls)
 
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