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Applications
Topic: Application Questions and Problems
from the HOA switch family department...
HOA1A2 Switch
Posted by PagoCruiser on 5 November, 2012 - 6:19 pm
Anybody seen an HOA1A1 switch?
Topic: Application Questions and Problems
from the Forum department...
Safety for a dial table indexer?
Originally posted by Escabara on 3 November, 2012 - 7:37 pm
A simple problem, but I'm not even sure where to begin. A dial table with operator interaction, and not sure what parts must be protected by an e-stop.
New Replies:
The requirements for two had control is found in ANSI B11.19. For safety it is not a requirement...
What kind of control is the "indexer" you speak of? Is this a smart servo drive, motion...
Actually a simple two hand safety circuit needs timers. The times are mandated in the controlling...
Topic: Motion control, servos, steppers, etc.
from the Electrical Engineering department...
Variable Frequency Drive
Posted by Mahesh on 31 October, 2012 - 10:21 pm
Using variable frequency drive and energy conservation
Topic: Continuous process industries, DCS questions.
from the Instrument department...
Reliability of Magnetic Level Switches (Reed)
Posted by OZI on 31 October, 2012 - 8:28 pm
Are external magnetic switches (reed type) reliable? Are they available with any sort of SIL rating?
Topic: Information resources, documentation.
from the I&C department...
book for I&C
Originally posted by Hasan on 30 October, 2012 - 4:21 am
books for I&C engineer
New Replies:
> Can anyone please provide some names of good books for an I&C engineer? Please contact...
Topic: Application Questions and Problems
from the Instru department...
Power Supply Grounding/Earthing Concepts
Originally posted by kk on 25 November, 2007 - 6:47 pm
Want some information about floating and grounded power supply systems
New Replies:
This might be helpful: ...
For a floating 24V power supply, if we check the voltage between positive and ground or negative...
Topic: Motion control, servos, steppers, etc.
from the dc link under voltage department...
weg ac drive tripping
Originally posted by lutej on 24 October, 2012 - 4:56 am
weg ac drive tripping on voltage dips
New Replies:
i would contact WEG. enabling ride through should be enough....
I don't really think disabling protection is the best strategy. If you are that serious about...
Topic: Programming languages.
from the Programming languages department...
How To Excute the DOS Commands in Visual Basic
Originally posted by Anonymous on 25 August, 2005 - 2:40 pm
i can't run the DOS commands in VB programs. Please help me.
New Replies:
> Shell("calc.exe") to run calculator > Shell("cmd.exe") to run...
Topic: Continuous process industries, DCS questions.
from the Forum department...
Loop Checking
Originally posted by xxxx on 23 October, 2012 - 10:46 am
Can I simulate 4-20ma signal to a loop powered device?
New Replies:
To expand on Roy's answer, many field devices called "calibrators" have the ability to...
Yes, transmitter simulation is standard on most calibrators....
Topic: Communications systems and equipment.
from the kv2c+ department...
modbus for ge kv2c+
Originally posted by RON on 8 February, 2009 - 11:04 pm
networking of almost 200 ge kv2c+ meters for modbus communication using RS485
New Replies:
Hello Lynn, I am interested in your proposed solution for retrieving data from a GE kv2c+ meter....
Topic: Engineering and workplace issues.
from the No Man's Land department...
Large area protection
Originally posted by Ken Crater on 22 October, 2012 - 8:26 am
What are the most effective ways to protect the area around an automated machine that is physically large?
New Replies:
Ken, also take a look at these: ...
the Banner AG4 does this too. ...
Yes, there are. I think Sick makes them, among others....
Posted by XYZ on 23 October, 2012 - 2:31 am
Low cost option for magnetic flowmeter for desalination project
Topic: Information resources, documentation.
from the Engineering department...
Scaling Historians
Originally posted by jjrogers on 16 October, 2012 - 2:46 pm
Has anyone had issues scaling data historians to handle more data?
New Replies:
Gerald, I've read this somewhere else, specifically OSI PI provided by Rockwell. Thanks for the...
While our PI system is quite small by comparison (around 500 tags), the data base performance is...
For a comparison of PI with other systems you could start here...
Rob, thanks for the insight! I'm probably looking at over 25K tags (maybe slightly over 50K),...
With OSI PI - No. The system scales up to 10s of thousands of tags or more with no issues. We...
Topic: Engineering and workplace issues.
from the electrical department...
2301D setting for Cat D399 engine
Posted by Tauck on 21 October, 2012 - 8:13 am
Problem with stability of CAT D399 engine
Topic: Engineering and workplace issues.
from the maintenance department...
New flow compensation formula for an orifice plate
Posted by Javier on 20 October, 2012 - 2:46 pm
Flow compensation formula question
Topic: Application Questions and Problems
from the What, me worry? department...
Risk assessments for automated machines
Originally posted by Ken Crater on 19 October, 2012 - 12:31 pm
Do you do formal risk assessments as part of the design process?
New Replies:
> Ken... is your "practices" study limited to Robotic-type machinery, or are SIS (ESD)...
Ken... is your "practices" study limited to Robotic-type machinery, or are SIS (ESD)...
Topic: Application Questions and Problems
from the inst department...
intrinsically safe for simple apparatus
Originally posted by bond on 19 October, 2012 - 4:39 am
intrinsically safe for simple apparatus
New Replies:
Bruce, thank you for clarification simple yet detailed answer regrds bond...
Simple answer - yes. A simple device, by definition, is one that cannot generate more than 1.5...
Topic: Application Questions and Problems
from the Forum department...
Calculating Sound Pressure Level from FFT
Posted by Robert Scott on 19 October, 2012 - 9:38 am
How is A-weighted Sound Pressure Level (SPL) in dB calculated?
Topic: Engineering and workplace issues.
from the Forum department...
Field Control Wiring Method
Originally posted by J Shah on 17 October, 2012 - 4:10 pm
Different Voltage Level Signals within one multi-conductor cable - wiring method
New Replies:
It's not clear from the information provided how much current is being carried on the 125 VDC...
Posted by chiru on 18 October, 2012 - 3:55 am
use of fieldbus system for generator stator winding temperature measurement
Topic: Sensor technologies.
from the Instrument department...
DP of two distant points
Originally posted by Abdolazim Hasseli on 15 October, 2012 - 1:31 am
How to avoid induced error of long tubing for DP transmitters?
New Replies:
Hi, I would suggest you get away from the tubing application and definitely not to install 40...
NEL has 20 page paper, Best Practice Guide: Impulse Lines for Differential-Pressure Flowmeters. ...
Hi Hasseli DP of 20mBar is very low so installation is your first enemy! - long tubing: the...
I would recommend that you contact your local Rosemount/Emerson Process Management Account...
Hi Bruno, Thank you for the hint. The service is gas in my case. We have used 0.5"...
Hi AddoLazim, Can you confirm, please: - the service of your DP transmitter, gas or liquid. -...
Topic: Application Questions and Problems
from the instrumentation department...
Line monitoring facility
Posted by bond on 16 October, 2012 - 6:58 am
Line monitoring facility for Normally open inputs and for outputs which require no power.
Topic: Application Questions and Problems
from the start or stop department...
Light curtain as *start* switch?
Posted by Ken Crater on 12 October, 2012 - 1:35 pm
Unusual, but unsafe? Using a light curtain to start a system.
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