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Posts from...
Saturday, October 20, 2007
Topic: PLCs and related questions.
Originally posted by sarabjot singh manku on 9 October, 2007 - 11:53 am
ewon configuration for using it in an internet connection
New Replies:
By Tomy Zacharia on 20 October, 2007 - 9:10 pm -
Shahji, Tusi kahaan se kharida hai is ko? (Translation "Where did you purchase the module...
from the IA department...
Networks Advice
Topic: Local and wide area networking in factory automation.
Originally posted by PaleFace on 23 September, 2007 - 7:23 pm
would it cause delay to mix several networks on the same switch?!
New Replies:
By Nathan Boeger on 20 October, 2007 - 9:07 pm -
You would use a Layer 3 switch as opposed to a router. They're really very similar except that the...
from the Automation List department...
Vibration Measuring System
Topic: Continuous process industries, DCS questions.
Originally posted by Marzie on 16 October, 2007 - 1:39 am
I need a Vibration Measuring System (sensor and transmitter)...
New Replies:
By Tomy Zacharia on 20 October, 2007 - 9:07 pm -
Dear Marzie, What do you intend to measure? Do you already have a condition monitoring program in...
from the Automation List department...
Labview HMI
Topic: Human-Machine Interface and SCADA.
Originally posted by AA on 18 October, 2007 - 1:13 am
Very new to Labview in general and looking for help building HMI
New Replies:
By zyubin on 20 October, 2007 - 9:05 pm -
Hello, There are several strategies to build HMI with LabVIEW. The simpliest way to have...
from the Automation List department...
Adjustment
Topic: Engineering and workplace issues.
Originally posted by Luigi on 4 October, 2007 - 8:58 pm
Balancing load in parallel electric generator
New Replies:
By luigi on 20 October, 2007 - 9:03 pm -
dear Jojo, first of all thank you for your info. I'm in industry for quite long time but never do...
from the SCADA Systems department...
Using CITECT to - R/W from SEPAM 40,80
Topic: Communications systems and equipment.
Posted by Andi on 20 October, 2007 - 8:54 pm
CITECT - R/W Sepam40,80 with BM85 and EGX200/400
from the Electrical department...
Slip Ring Induction Motor
Topic: Engineering and workplace issues.
Posted by Ritesh on 20 October, 2007 - 8:53 pm
slip ring IM of 50 KW used for hoist purpose makes a humming sound...
from the Process Control department...
Suggestions for Temperature Transmitter
Topic: Engineering and workplace issues.
Originally posted by Eric Thielking on 8 October, 2007 - 7:17 pm
I need a temperature transmitter, which includes remotely selectable dual inputs...
New Replies:
By sergey on 20 October, 2007 - 8:51 pm -
if u need a temperature signal in automation sistem, easiest way would be use of resistance...
from the Automation List department...
3 wire and 4 wire RTDs
Topic: Engineering and workplace issues.
Originally posted by Sreeraj on 16 October, 2007 - 1:05 am
How terminal resistance gets cancelled?
New Replies:
By sergey on 20 October, 2007 - 8:50 pm -
http://www.rdfcorp.com/anotes/pa-rtd/pa-rtd_04.shtml...
from the Automation List department...
Tank level control
Topic: Application Questions and Problems
Posted by Anonymous on 20 October, 2007 - 8:28 pm
want to control level of a tank by simply turning pump on/off...
from the sight department...
AC motor
Topic: Motion control, servos, steppers, etc.
Originally posted by jean on 18 October, 2007 - 1:53 am
AC Motor question
New Replies:
By wayne on 20 October, 2007 - 8:27 pm -
I don't know of many generators with fixed power output. Usually they have a maximum power output...
from the Valve control department...
Analog Input to Digital Ouput
Topic: PLCs and related questions.
Originally posted by Eric on 17 October, 2007 - 12:59 am
Controlling a valve using digital outputs
New Replies:
By Ron Davis on 20 October, 2007 - 8:26 pm -
I have dealt with this by generating a "virtual valve position" within the controller...
By xavierwh on 20 October, 2007 - 11:13 am -
Which software are you using with Quantum PLC ? Concept or Unity? I believe you should be able to...
from the In Serious Difficulty department...
1761-Net-AIC Adapter
Topic: PLCs and related questions.
Posted by Rob on 20 October, 2007 - 8:17 pm
Trouble communicating to SLC 5/01 using PIC adapter.
from the Automation List department...
Why is it 4-20
Topic: Continuous process industries, DCS questions.
Originally posted by Rafa on 16 October, 2007 - 11:28 pm
Can someone explain the whole 4-20mA thing to me?
New Replies:
By Roy Matson on 20 October, 2007 - 7:34 pm -
Back in the 60s before 4-20 the instruments used to be 10-50mA which gives 1-5 volts across a 100...
By James Ingraham on 20 October, 2007 - 7:33 pm -
This may lost to history. I often wonder about these kinds of things. My guess would be that the...
By Michael Griffin on 20 October, 2007 - 11:09 am -
We have discussed this here before. The best theory for the 20ma value seems to be that 20ma used...
from the Automation List department...
J-Bus Vs Modbus
Topic: Communications systems and equipment.
Posted by Shyam on 20 October, 2007 - 7:30 pm
Modbus RTU protocol Vs J-bus protocol.
from the new guy in the house department...
dp flow measurement
Topic: Continuous process industries, DCS questions.
Posted by SI on 20 October, 2007 - 7:24 pm
changing the dp range for flow measurement
from the Automation List department...
Wireless connectivity
Topic: Communications systems and equipment.
Originally posted by FN on 18 October, 2007 - 2:29 am
I need help about wireless connectivity
New Replies:
By James Ingraham on 20 October, 2007 - 7:21 pm -
Yes, there are numerous ways to do this. But 800 meters is a LONG way, so make sure your...
By none on 20 October, 2007 - 7:21 pm -
http://www.phoenixcon.com/wireless 1 way i/o radio...
By Rob Barrese on 20 October, 2007 - 11:15 am -
You may want to consider Omnex (http://www.omnexcontrols.com/products/industrial/). They offer...
from the from the Projects department department...
How to make Twido run as Modbus master?
Topic: PLCs and related questions.
Originally posted by Antonio on 18 October, 2007 - 1:07 am
Configuration
New Replies:
By Dweebyone on 20 October, 2007 - 6:54 pm -
You use %EXCH1 and setup a control , TX, RX table in your ladder. The control table defines the...
from the Automation List department...
CompactLogix Radio Comm
Topic: PLCs and related questions.
Originally posted by adex on 18 October, 2007 - 2:12 am
CompactLogix with esteem 195es modem
New Replies:
By KirkC on 20 October, 2007 - 6:53 pm -
AB has a few flavors of DF1 protocol: DF1 full-duplex, DF1 half-duplex, and DF1 Radio Modem. I am...
By Brian E Boothe on 20 October, 2007 - 6:52 pm -
your first Big Mistake is using Crappy DF1 Radio modems: with a really nice compact Logix Platform:...
from the stymied department...
factorylink webclient on win xp sp2
Topic: Human-Machine Interface and SCADA.
Originally posted by DF on 14 October, 2007 - 8:31 pm
Webclient vanishes with no errors
New Replies:
By Tony R. Gunderman on 20 October, 2007 - 6:50 pm -
I do not remember having this type of problem with WebClient on a WinXP SP2 machine, but it may be...
from the elactrical department...
1 to 150 r.p.m speed controle with dc motors
Topic: Engineering and workplace issues.
Originally posted by JANARDHAN on 9 October, 2007 - 11:51 am
A dc motor of torque 1kg-cm is to be rotated from 1 to 150 r.p.m based on the speed mentioned in that range
New Replies:
By Greg Parrott on 20 October, 2007 - 6:49 pm -
Your selection will be dictated in part by the level of precision needed at each end of the speed...
from the DESIGN department...
PLC and GSM/GPRS Modem
Topic: Communications systems and equipment.
Originally posted by Ather Akhlaq on 3 March, 2007 - 2:14 pm
The idea is to send from remote areas via GSM Network
New Replies:
By EricD on 20 October, 2007 - 6:48 pm -
EXOR has an all-in-one PLC/HMI product that uses IEC 1131-3 CoDeSys for the PLC and directly...
from the Software in automation department...
PLC S7-200 software
Topic: Software, including programming, OS issues, etc.
Originally posted by Zafar on 9 November, 2006 - 12:12 am
Which software I can use to program the S7-200 PLC?
New Replies:
By bestyang( gotobestyang@163.com) on 20 October, 2007 - 6:47 pm -
Hi, S7-200 is good for doing easy control and Can be used Modbus, free port to connect with other...
Topic: Continuous process industries, DCS questions.
Originally posted by arch15 on 14 October, 2007 - 6:10 pm
Orifice Plate- straight run requirements w.r.t beta ratio
New Replies:
By John Catch on 20 October, 2007 - 6:46 pm -
A discussion on this topic could make a nice extended magazine article, or a chapter in an...
from the How do I talk to these things? department...
Newbie needs help with Modbus
Topic: Communications systems and equipment.
Originally posted by Andy on 28 August, 2007 - 2:44 pm
Need some direction.
New Replies:
By Andy on 20 October, 2007 - 6:31 pm -
A mix of modpoll, java, and a batch file did the trick. Thanks for all the help!...
from the Automation List department...
Tank-Pump Problem
Topic: Continuous process industries, DCS questions.
Posted by bob on 20 October, 2007 - 6:28 pm
Tank-Pump Problem
from the Boiler Room department...
Boiler Feedwater control
Topic: Engineering and workplace issues.
Posted by Marc Estra on 20 October, 2007 - 11:16 am
I am trying to determine the best valve configuration to control boiler feedwater. Should I use a normally open or closed valve?
from the Automation List department...
WinCC Toggle
Topic: Human-Machine Interface and SCADA.
Posted by Khaled Ezzat on 20 October, 2007 - 11:16 am
Want to assign tag to make toggle
from the Automation List department...
Current transformer in series
Topic: Engineering and workplace issues.
Posted by Sukumar on 20 October, 2007 - 11:14 am
Two CT secondaries, in series.
from the S7 400 department...
S7 400 CPU defect?
Topic: PLCs and related questions.
Originally posted by ykirca on 4 September, 2007 - 6:22 pm
Siemens 414-3 CPU defective?
New Replies:
By Hartono W on 20 October, 2007 - 11:13 am -
Something if the hardware configuration is wrong, it would stop the CPU. When getting modules from...
from the EE department...
ACIM
Topic: Motion control, servos, steppers, etc.
Posted by deeptee on 20 October, 2007 - 11:07 am
Vector control of Induction motor
from the Automation List department...
Allen-Bradley Ethernet and Ethernet/IP specification
Topic: Communications systems and equipment.
Posted by Webber on 20 October, 2007 - 11:05 am
AB Ethernet and Ethernet/IP specification
from the Operation department...
HRSG preservation
Topic: Continuous process industries, DCS questions.
Posted by Ashraf H on 20 October, 2007 - 11:05 am
Do we need to arrange preservation of Boiler/HRSG if goes for shutdown for 5 to 7 days ?
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