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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
Q: How many Zen masters does it take to screw in a light bulb?
A: None. The Universe spins the bulb, and the Zen master stays out
of the way.
A: None. The Universe spins the bulb, and the Zen master stays out
of the way.
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from the Automation List department...
Earthing
Can anyone help me about how earthing is done in automation panels like PLCs and DCSs? I mean when incoming is 415vac then its earth is connected with that of substation side earth, but after rectifying that, how is supply DC voltage connected with earth? Also how are the card's earth and panel's earth all connected? What information should be available while engineering such wiring? How is floating supply connected?
From Control Engineering magazine...
Related articles from Control
Engineering magazine
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- Wireless manager for instrumentation and control devices
- Level sensor: Magnetostrictive device extends mounting options
- New podcast: One road to wireless instrumentation
- Tutorial: Instrumentation / DCS integration languages, part 1, EDDL
- Rockwell Automation introduces virtual design and production software utility
- FactoryTalk industry-specific applications launched
- Upgraded communication modules make PLC to PLC communications easier
- Torque: Hall-effect sensor, reaction torque sensor, torque data acquisition
Above articles copyright 2008 Reed Business Information.
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