Welcome to Control.com, the global online community of automation professionals.
Control.com - Nerds in Control
Member Login
Search
Jump to a Date
Sponsored Communities
Cool stuff
Neat Stuff
Visit our shop for nerds in control lifestyle products.
Thermal Overload
The threads that wouldn't die...
- PC reliability?
- Windows, real time
- PID loops
- PCs vs. PLCs
- Replacing people
- MS 'monopoly'?
- Software quality
- Where do we go from here?
- Why pay?
- PC reliability?
- Windows, real time
- PID loops
- PCs vs. PLCs
- Replacing people
- MS 'monopoly'?
- Software quality
- Where do we go from here?
- Why pay?
Fortune
If you're not part of the solution, you're part of the precipitate.
RSS Feed
Use this link to get an RSS feed of the Control.com article flow, for private, non-commercial use only:www.control.com/rss/
To get a personalized feed, become a member at no cost.
from the autoamation department...
RS485 connection with Fiber optics N/W and Electrical N/w.
In Substation i have Numerical relays with fiber optics ports which is communicating on modbus protocols and energy meters with RS485 electrical port on modbus protocol. Modbus parameters for meters and relays( such as Baud rate else) are the same.
Now i want to integrate meters and relay with PLC on same loop.
For numerical relays i have used star coupler which have fiber connection to connect the relay ( its connected to the relays with one fiber connection to one relay on star topology) and one RS485 port for upper level connectivity.
PLC have RS485 ports. So in multdrop topology shall i connects the Meters and Star couplers on same RS485 loop. As conventionaly we do if we have more than 2 meters.
Now i want to integrate meters and relay with PLC on same loop.
For numerical relays i have used star coupler which have fiber connection to connect the relay ( its connected to the relays with one fiber connection to one relay on star topology) and one RS485 port for upper level connectivity.
PLC have RS485 ports. So in multdrop topology shall i connects the Meters and Star couplers on same RS485 loop. As conventionaly we do if we have more than 2 meters.
From Control Engineering magazine...
Related articles from Control
Engineering magazine
- Wonderware focuses on front-line innovation
- Mobility dominates WonderWorld partner and technology expo
- CAD / project management integration supports distributed engineering
- OPC Foundation to release analyzer devices integration draft specification
- Wonderware applauds users of winning applications
- Display panel has built in functions, diagnostics
- Pepperl+Fuchs acquires Christensen Display Products
- Project report: Oil & gas project calls for seamless integration of third-party technologies
- Project report: Polymer plant modernization includes major service contract
Above articles copyright 2008 Reed Business Information.
Subject to its Terms of Use.
Your use of this site is subject to the terms and conditions set forth under Legal Notices and the Privacy Policy. Please read those terms and conditions carefully. Subject to the rights expressly reserved to others under Legal Notices, the content of this site and the compilation thereof is © 1999-2008 Control Technology Corporation. All rights reserved.
Our Advertisers
Help keep our servers running...
Patronize our advertisers!
Patronize our advertisers!