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- PC reliability?
- Windows, real time
- PID loops
- PCs vs. PLCs
- Replacing people
- MS 'monopoly'?
- Software quality
- Where do we go from here?
- Why pay?
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Posts from...
Thursday, October 25, 2007
We have difficulty when we want to synchronize our unit after the turbine reaches FSNL. Can anyone help us?
New Replies:
By CSA on 25 October, 2007 - 11:58 pm -
By CSA on 25 October, 2007 - 11:58 pm -
Have you used the Prevote Data Display to look at the voltage input signals to try to get a sense...
By Bob Johnston on 25 October, 2007 - 11:52 pm - Sounds like a very similiar problem to the one posted by Mambo above on the same date. Do what he...
By cc on 25 October, 2007 - 11:48 pm - There seems to bo loose connections from the field wires to the PTBA / TCEB / TCEA cards....
By Samier on 25 October, 2007 - 10:32 pm - Hi there,
There seems like another case in this site and my answer will be the same. Screen data...
What are the criteria for changing over fuel on line?
New Replies:
By Bob Johnston on 25 October, 2007 - 11:57 pm -
By Bob Johnston on 25 October, 2007 - 11:57 pm -
As CSA says, there are a lot of things which can go wrong. To answer your question, it depends...
By CSA on 25 October, 2007 - 12:50 am - So, you must have a single-shaft machine, with the gas- and steam turbines and generator all...
Generator voltage blinks on <I> Dos Interface when ready to synchronize in Auto mode.
New Replies:
By CSA on 25 October, 2007 - 11:55 pm -
By CSA on 25 October, 2007 - 11:55 pm -
Have you used the Prevote Data Display to look at the voltage input signals to try to get a sense...
By Bob Johnston on 25 October, 2007 - 11:48 pm - That's a kind of odd one. In the first instance I would try the ribbon cables from PTBA to TCEB,...
By cc on 25 October, 2007 - 11:45 pm - Just a guess!
I would check the scan rate settings of the animation sync file. Increase the scan...
By S Zamil on 25 October, 2007 - 10:29 pm - Mambo,
If you are on Auto Synch, the screen will have no effect on your synchronization at all....
Where best to sell controllers and parts?
New Replies:
By Microb on 25 October, 2007 - 11:51 pm -
By Microb on 25 October, 2007 - 11:51 pm -
Hi Paul,
Did it work with Western Process or any other supplier? I am in the same situation...
Does anyone know the MKV constant value for LKTALM1 on a GE frame 7EA?
Laptop vs. Hart Smart Communicator
New Replies:
By Issac Issachar on 25 October, 2007 - 11:46 pm -
By Issac Issachar on 25 October, 2007 - 11:46 pm -
Siemens' PDM software runs on Windows. It uses a HART modem that runs on either a serial port or a...
By Chris on 25 October, 2007 - 11:26 pm - One option is to use SIEMENS SIMATIC PDM software available from MACTek ...
By Jonas Berge on 25 October, 2007 - 11:19 pm - I think there are a few software applications out there. Apart from the software you need a HART...
Can any one explain how to calculate the quantity of the liquid (The fluid is liquid Nitrogen)in a closed tank...
New Replies:
By Sam on 25 October, 2007 - 11:43 pm -
By Sam on 25 October, 2007 - 11:43 pm -
Ralph,
I have a fuel tank on our farm that is 36" in dia. and 60 long, and it is mounted...
Use C WR1W function twice for one instance
I have to interface Caterpillar engine, which is RS-485 standard, with my Modicon Premium PLCs.
New Replies:
By Dweebyone on 25 October, 2007 - 11:35 pm -
By Dweebyone on 25 October, 2007 - 11:35 pm -
Rs485 comes in two flavours: 2 wire and 4 wire. 2 Wire is actually 3 wire TX, RX and GNd (common).
...
By GH on 25 October, 2007 - 11:14 pm - RS485 don't have any problem to connect 10 pieces of equipment together; the spec. says 32 devices...
By Roy on 25 October, 2007 - 12:51 am - Sandeep,
You should be able to daisy chain 10 devices without too much problem (I think the...
Does anyone know of a good substitute device for the ADAM-6017 Module for reading Analog I/O signals over a TCP connection?
New Replies:
By Vimaris Grau on 25 October, 2007 - 11:34 pm -
By Vimaris Grau on 25 October, 2007 - 11:34 pm -
Hi,
Since you would like to implement ModBus into your current configuration, then I suggest...
from the Are there any decent ones anywhere??? department...
PL7 Pro guide for using bridging and FIP, etc.I'd like to be able to assist vendors with setting up the PLCs
New Replies:
By dweebyone on 25 October, 2007 - 11:29 pm -
By dweebyone on 25 October, 2007 - 11:29 pm -
Surely the person needing to know how to configure is a PLC engineer. If not, they should still...
I need to select a relative humidity sensor for measuring humidity prior to welding.
Is it better to dedicate a generator for supplying the reactive power or load share the reactive power between generators?
I am new in the field of automation. Could anybody tell me the difference between PLC and DCS other than I/O handling capacity?
New Replies:
By EPK on 25 October, 2007 - 11:23 pm -
By EPK on 25 October, 2007 - 11:23 pm -
The biggest difference between DCS and PLCs is that DCS systems provide:
Level of intergration...
from the student project department...
How to connect incremental three channel encoder to PLC S7-200 CPU222.?
I am a student and my academic project is on PLC based speed control of DC motor. I need to do closed loop speed control of DC motor.
I have an application where I am using a Siemens 315-2DP CPU to control 3 x machines. My client now wants a colour screen (plus/minus 6 inches) at each of the machines to display certain process values at each machine...
New Replies:
By Meeuwis Bouw on 25 October, 2007 - 11:09 pm -
By Meeuwis Bouw on 25 October, 2007 - 11:09 pm -
Check out PRO FACE at http://www.proface.com
They are a lot cheaper than Siemens and communicate...
By Nathan Boeger on 25 October, 2007 - 12:51 am - Rene,
Unfortunately I can't think of a specific product that would fit your needs. I imagine...
By Rodrigo Reyes on 25 October, 2007 - 12:48 am - Dear Rene,
Please contact Mr. Gaetano Nicolaci, Sales Manager at ESA HMI.
ESA has...
By Don on 25 October, 2007 - 12:31 am - See http://www.redlion.net for their G3 series OITs....
Looking for ModBus serial driver source code for WinCE.
Feedback needed for evaluating some continuous level measurement units.
New Replies:
By john on 25 October, 2007 - 10:49 pm -
By john on 25 October, 2007 - 10:49 pm -
I agree the vega system from http://www.vegacontrols.co.uk/ is very good....
Does anyone here have any experience using MPL PIP industrial computers?
Is Standard Upload possible for IEC 61131-3 Compliant PLC Devices?
Documentation for Rosemount RS3.
New Replies:
By Jim Cahill on 25 October, 2007 - 10:42 pm -
By Jim Cahill on 25 October, 2007 - 10:42 pm -
Hi Ann,
I spoke with one of our RS3 folks. There is limited information on the...
Need pseudocode/flow diagram/code for tuning PID computer program.
We are going to control the position and speed of a stepper motor using em 253 positioning module with Siemens S7 200 PLC (CPU 222, version - 02.01).
Controlling a valve using digital outputs
New Replies:
By Roy on 25 October, 2007 - 10:38 pm -
By Roy on 25 October, 2007 - 10:38 pm -
Eric,
Sounds like you are on the right track. Try making the X value a variable based on...
What is the function of the Exciter diode monitor (EDM)?
What are the features of the Multilin SR489 relay? And is there a need for an advanced generator protection AGP system to be installed beside?
Communicating with two Premium PLCs through ethernet module
New Replies:
By Anonymous on 25 October, 2007 - 10:26 pm -
By Anonymous on 25 October, 2007 - 10:26 pm -
Dear friend,
Thank you for your reply.
I'm using Premium PLC's TSX 573623 with PL7 Pro V4.4. 7...
I have recently inherited a number of Allen-Bradley PLC5 systems that have programs without memory mapping or flow charts for them. Need suggestions on how to document the program best.
New Replies:
By Grady Hart on 25 October, 2007 - 10:00 pm -
By Grady Hart on 25 October, 2007 - 10:00 pm -
Thanks for the affirmation of my opinions. Sometimes it helps to check one's own sanity.
...
How can I configure USB port in VB
I am interested where the automation specialists are located in the organizational structure of the enterprise (especially in the food industry)...
Looking for Ex Resistor
New Replies:
By Steve Yates on 25 October, 2007 - 1:00 am -
By Steve Yates on 25 October, 2007 - 1:00 am -
Could you give more details of the application? e.g., which protection technique are you using (Ex...
One example on HMI cimplicity
New Replies:
By CSA on 25 October, 2007 - 12:57 am -
By CSA on 25 October, 2007 - 12:57 am -
Have your employer send you to Mark VI training to get the basics of the system. You may be able to...
Detectors for Industrial Chemical Lab needed
Current to Voltage Converter
I want to know why main steam temperature drops in steam turbine during expansion.
New Replies:
By CSA on 25 October, 2007 - 12:46 am -
By CSA on 25 October, 2007 - 12:46 am -
PV = nRT I believe is the explanation for the temperature drop as steam is expanded and work is...
Empty summary
I am attempting to configure a Momemtum PLC to receive a hex value from a GE frequency converter
Can someone explain the whole 4-20mA thing to me?
New Replies:
By Dick Caro on 25 October, 2007 - 12:29 am -
By Dick Caro on 25 October, 2007 - 12:29 am -
For the historians out there, at one time, the ISA S50.1 standard that defined the 4-20mA standard...
S-7 PLC confusion...
New Replies:
By Hossam Hassona on 25 October, 2007 - 12:28 am -
By Hossam Hassona on 25 October, 2007 - 12:28 am -
Dear Sandy,
There's a way to see used I/Os in the software.
Open Simatic Manager, open your...
Errors in opening *.STU
I am looking for any information (schematics, manual, etc.) about a RTD, Westinghouse card (7379A62G02 4QRT). Please help help!!
Thanks.
Thanks.
Simulink model of induction motor control
New Replies:
By Acoidan on 25 October, 2007 - 12:23 am -
By Acoidan on 25 October, 2007 - 12:23 am -
I am working on a similar project and I need a Simulink model of an stepper motor. If you have got...
explain of starting control for gas turbine
New Replies:
By kakil on 25 October, 2007 - 12:22 am -
By kakil on 25 October, 2007 - 12:22 am -
Thank you Mr. CSA,
I didn't ask about the operation procedure. I am asking about the FSR_FI,...
I have to install pressure transmitters in the sea water line.
from the Automation List department...
Multiple MVI46-MCM Modbus modules installed on one SLC-5 chassisUsing more than one Prosoft MVI-46 MCM module for SLC-5 PLC
Mismatch in fuel gas flow values for GE Frame5 Mark V turbine.
New Replies:
By gas_flow on 25 October, 2007 - 12:17 am -
By gas_flow on 25 October, 2007 - 12:17 am -
>One of the things I've always done when
>this was raised as a problem is to use a
...
Which HMI or SCADA shows 64 bit data?
New Replies:
By Tim Donaldson on 25 October, 2007 - 12:17 am -
By Tim Donaldson on 25 October, 2007 - 12:17 am -
You should take a look at GENESIS64 http://www.iconics.com/genesis64...
I failed to install communication between York's chiller and PLC via Microgateway
New Replies:
By Jeff Warner on 25 October, 2007 - 12:08 am -
By Jeff Warner on 25 October, 2007 - 12:08 am -
The Microgateway defaults to RS485 2 wire connection at 9600 baud, 8 bits, 1 stop bit, even parity...
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