Posts from...
Today, Friday, April 18, 2014
Topic: Power generation equipment control.
from the Instrumentation department...
Vitec Vibration probe
Originally posted by NVS on 17 April, 2014 - 12:27 pm
Installing Vitec 4033-500 in place of 4033-400 velocity transducer
New Replies:
NVS, I don't believe the impedance difference will affect the Mark IV, but you should be certain...
Impedance here referring to the electronic segment from your sensing element. 4033-500 is designed...
Topic: Continuous process industries, DCS questions.
from the inst department...
Gulde control valves
Originally posted by self on 23 August, 2008 - 2:07 am
Suppliers of GULDE control valves.
New Replies:
By Dipankar Biswas on 17 April, 2014 - 11:41 pm -
> Please let me know the suppliers of GULDE make control valves. We M/s Continental Valves...
Topic: Continuous process industries, DCS questions.
from the instrumentation department...
I/P positioner and I/p transducer Control valve
Originally posted by Emerson process management on 13 May, 2012 - 4:18 am
Difference between I/P positioner and I/p transducer
New Replies:
Look at the principle of operation and internal diagrams of a Bellofram Type 1000 I/P. It does not...
hi sir, I had a question why diaphragm is not used in i/p converter? why they using the bellows?...
Topic: Communications systems and equipment.
from the Instrumentation and Control department...
Communication between Speedac NXT weighing Controller and Honeywell Scada
Originally posted by RKM on 17 April, 2014 - 3:15 pm
Speedac NXT controller is not communicating with Honeywell Server via RS 485 serial communication.
New Replies:
Was the former device communicating properly right up until it was replaced or is the replacement...
Topic: Continuous process industries, DCS questions.
from the Department department...
Do I Understand PID's?
Posted by Piedon on 17 April, 2014 - 9:58 pm
Just want to see if I understand these things.
Topic: Software, including programming, OS issues, etc.
from the ANY department...
Software suggestions
Posted by Centrafused on 17 April, 2014 - 8:04 pm
New to automation and searching for a simple solution on some safety concerns.
Topic: Motion control, servos, steppers, etc.
from the Automation department...
Hall/Magnetic Sensor
Originally posted by Biju CG on 17 April, 2014 - 4:10 am
Hall Sensor Replacement Failed !
New Replies:
I can think of 4 common and several not so common output configurations for this type of sensors,...
Topic: Power generation equipment control.
from the Control department...
SynGas Conversion Project
Originally posted by Abhishek on 17 April, 2014 - 5:20 am
Pointers for Syngas Conversion project in India
New Replies:
Abhishek... what type of conversion process is involved? For example is it: a) Coal to Syngas? ...
Topic: Power generation equipment control.
from the Control&Automation department...
Preselected mode for Mark V
Originally posted by Abbernardo on 3 April, 2014 - 4:49 pm
PreSelected mode when connected to grid and Mark V trip
New Replies:
K.R. Manish, What is FGMO, please? This is a good discussion, and as such, I hope you...
Dear CSA, With reference to the FGMO mode which you have described, I agree with you that it is...
Originally posted by Detlev Neumann on 17 April, 2014 - 4:09 am
Could I say that with the following facts my device is MODUS-RTU compatible
New Replies:
By Lynn August Linse on 17 April, 2014 - 11:10 am -
Looks good to me, and the 'no parity' option *IS* important as some Modbus devices don't support...
Topic: Communications systems and equipment.
from the Instrumentation department...
ML1400 PLC communicate PIC 16f874 over modbus protocol
Posted by Srinivas on 17 April, 2014 - 11:02 am
ML1400 PLC communicate with PIC 16f874 over modbus protocol and write data to LCD connected to microcontroller
Topic: Communications systems and equipment.
from the Forum department...
MODBUS Break Condition & Checksum
Originally posted by Derek on 16 April, 2014 - 12:14 pm
MODBUS RTU using RS485 to RS232 converter connected to RS232 to USB converter to communicate with electric meter using MODBUS Poll.
New Replies:
By Lynn August Linse on 17 April, 2014 - 10:53 am -
Having the RS-485 +/- reverse (or swapped) will usually look like a BREAK condition if blindly...
Maybe try a different converter (or your current setup with another slave). FTDI sells some that...
Topic: Communications systems and equipment.
from the Automation department...
DCS Yokogawa Communication Issue
Originally posted by Zarar on 13 April, 2014 - 2:21 pm
Yokogawa DCS communication with Modbus slave device using ethernet redundant connection with ALE111.
New Replies:
By Elbert van der Bijl on 17 April, 2014 - 5:15 am -
this behavior is by design and it will not occur when the Modbus slave is correctly responding to...
Topic: Sensor technologies.
from the Instrumentation & Control department...
Liquid gas level measurement
Originally posted by Engineer92 on 27 March, 2014 - 2:52 am
Liquid Gas Level measurement
New Replies:
The instrument to use in a application like this is a DP with capillaries and chemical seals with...
Originally posted by Neo on 11 April, 2014 - 10:08 am
Increase in reactive power drawl at generation source.
New Replies:
Hi Neo, From what you have described, it sounds like that the generators are tripping due to...
Topic: Power generation equipment control.
from the measurments department...
Standard for temperature measurement
Posted by Mahmoud Sallam on 17 April, 2014 - 12:00 am
Location of temperature measurements (problems)
Topic: Power generation equipment control.
from the Forum department...
OT CALCULATION
Posted by jamal on 16 April, 2014 - 4:15 pm
OTC calculation
Topic: Communications systems and equipment.
from the Communications department...
OPC server communicate with OPC server
Originally posted by Franco Kew on 16 April, 2014 - 5:19 am
How do one OPC server share data with another OPC server?
New Replies:
In order to facilitate such communication you typically use an OPC client that connects to both...
Topic: Continuous process industries, DCS questions.
from the Forum department...
Instrumentation cables sizing
Originally posted by Ahmed Sami on 10 April, 2014 - 7:57 am
Instrumentation cables sizing
New Replies:
Dear Ahmed Sami, Your question is incomplete I can say. Cable cross section and hazardous area...
Topic: Communications systems and equipment.
from the Salse Department department...
GPRS data transmission
Originally posted by Goran on 22 March, 2014 - 10:30 am
Using GPRS modem to send data from PLC to OPC server on a PC with SCADA.
New Replies:
do you have a static IP address for PLCs? Alex. Contact me. Skype: skype_redfox...
Topic: Software, including programming, OS issues, etc.
from the Computer department...
Serial Communication VB Code
Posted by Jinali on 16 April, 2014 - 4:11 am
Continuous reading of serial input
Topic: Human-Machine Interface and SCADA.
from the Forum department...
Vijeo Citect ModBus RTU Write Problem
Originally posted by Rui Monteiro on 21 December, 2011 - 2:19 pm
Vijeo Citect ModBus RTU Write Problem
New Replies:
> Anyone got the solution? try without tagwrite tagname = ArgValue1...
Topic: Communications systems and equipment.
from the Automation and EMS department...
Modbus Data transmission time
Originally posted by Bhadresh Sarvaiya on 12 April, 2014 - 7:58 am
How to calculate time to receive data from slave to master in daisy chain connection of slaves, if my slaves are 20 and single master.
New Replies:
By Patrick Lansdorf on 16 April, 2014 - 1:55 am -
Hi, I have made a simple Excel sheet, where one can calculate the line time. You will need to...
Slick idea on the prefetch! ...
By Lynn August Linse on 15 April, 2014 - 9:31 am -
>> What's a rule-of-thumb value for >> RTU-TCP latency in a Digi Modbus bridge...
By Bhadresh Sarvaiya on 15 April, 2014 - 1:29 am -
> Mr. Linse, > What's a rule-of-thumb value for RTU-TCP latency in a Digi Modbus bridge...
Mr. Linse, What's a rule-of-thumb value for RTU-TCP latency in a Digi Modbus bridge product? ...
Topic: Communications systems and equipment.
from the Forum department...
SCADA RTU in Substation
Posted by SSU on 16 April, 2014 - 12:56 am
Why use SCADA RTU in a substation? What is the purpose of SCADA RTU?
Topic: Software, including programming, OS issues, etc.
from the INSTRUMENTATION department...
UREA FLOW METER
Originally posted by Arun Kumar on 14 April, 2014 - 4:20 pm
What type of flowmeter can be installed in a Urea duct as a source of FD and ID fan in the duct?
New Replies:
What are you measuring? Just air flow? We use a DP transmitter for our prill tower air ducts....
Topic: Human-Machine Interface and SCADA.
from the Which HMI do you simply Love or Hate? department...
TOP 10 list of Best and Worst HMI & SCADA
Originally posted by Luciano Dell'Orfano - RTS Argentina on 12 October, 2002 - 9:35 am
I know everyone has their personal preferences, but I think it would be more interesting to discover which software is the Best or worst...
New Replies:
By Devin Montcrief on 15 April, 2014 - 12:28 pm -
> WinTr is advanced SCADA SOFTWARE for monitoring and saving data of manufacturing processes...
Topic: Engineering and workplace issues.
from the Level Control department...
Magnetorestrictive Level Transmitter issues
Originally posted by Braindead on 26 March, 2013 - 11:46 pm
Extreme vibration and loss of signal on level transmitters
New Replies:
Hi Mateus, there is only one instrument when you are working offshore on a FPSO or Platform...
Topic: Motion control, servos, steppers, etc.
from the Power Electronic Engineering department...
Medium Voltage Drive Variable Frequency Drive
Posted by Mahesh Thapaliya on 15 April, 2014 - 2:26 am
Application of Medium Voltage Drive in industry to save energy, obtained desired output
Topic: Local and wide area networking in factory automation.
from the I'm in trouble department...
MODBUS ABB ACS550 Connection trouble
Originally posted by Christopher James Churchill on 13 April, 2014 - 7:59 am
MODBUS connection trouble... How to create a virtual COMM port
New Replies:
Looks like USB conversion would be your best alternative. Here's a device from a company that...
Topic: PLCs and related questions.
from the Urgent department...
Time and Date in Honeywell control builder
Originally posted by Mostafa on 8 April, 2014 - 2:48 pm
How could use time and date in control module?
New Replies:
thank you so much sir but unfortunately i couldn't find variables CEE1.HOUR...... i have many...

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