Posts from...Today, Wednesday, September 17, 2014
from the Forum department...Why Industrial Automation & Robotics in Mechanical Engineering if it's more electricity?
Master of technology in Industrial Automation & Robotics
The first rule of control engineering is that you can't hope to control anything unless you...
That may be due to the preferences of your University. However I do not find it as a mistake....
from the ModbusTCP department...PROSOFT MVI56-MNET Slave Response Time
PROSOFT MVI56-MNET communication response time and performance
from the Instrument and Control department...Siemens S5 CPU 922 Run and Stop LED Do Not Turn ON
Run and Stop LED on front of Siemens S5 922 CPU doesn't turn ON on powering of rack. Only BASP LED on front of CPU is turned ON.
By Kevin Frechette on 17 September, 2014 - 1:37 pm -
The only thing I can think of is that the Rack is faulted. The backup battery may be missing or...
from the C&I department...Mark V Signal Scaling in HMI
Exciter signals gain in mark V
VM, Can you please post the relevant lines (rows) from IO.ASG? What happened when you put the...
By VM on 17 September, 2014 - 6:15 am -
Can you please refer the exact scaling values?...
from the Forum department...Excitation system
What is an excitation system is and what role it does play in the start up of a prime mover like a gas turbine
The Power Factor is a function of the MVar. If your unit or turbine is connected to the grid,...
from the PLC comm error department...TSX Premium PLC Problem
Telemecanique TSX Premium PLC unstable operation
By visitor on 17 September, 2014 - 10:28 am -
Thank you very much for your answer. I got contact with local Schneider representatives. They...
By chud on 17 September, 2014 - 4:02 am -
This could be programming......hardware....etc. etc. Without being online with the plc when this...
from the Wish i paid more attention at University department...Power Factor on LV/HV Sides of a Transformer
how to analyse the power factor of a system across a transformer
Yes i sincerely need a comprehensive calculation on this power factor issue. Thank U very much as i...
from the Forum department...RSLinx issue in VMWare WIn 7 32 bit VM
I can do a serial upload and download but I cannot go online with RSLogix 500 inside a VM running WIn 7 32 bit
I just got the 2 port version and it works like a champ. Upload, download and online. Thanks! ...
from the Communication department...Communication Between Control Logix and Centum VP Using Ethernet/IP
Communication not getting established between Yokogawa (ALE-111) and Control logix using Ethernet/IP.
from the Forum department...GE Frame 7EA Combustion Turbine Starting Motor
Starting motor does not cutout when a normal shutdown is given below 60% speed.
Sorry I have been away for so long. I honestly don't think I have had more than 5 minutes in my...
from the Power Generation department...When Will 88CR start?
GT start up sequence, when will 88CR get started?
CSA I would like to begin with L1Z,and i think it is a little hard for me. I will do as much as...
Neo, Can you repeat question/response, please? I don't want to comment on L1X, L1Z until you...
CSA: I am preparing for the L1Z, L1X, l4hr rung. And i think you may miss one of my response. ...
Neo, You don't have to ask--no one does! I wouldn't comment until you posted L1x and L1Z from...
CSA: Can i ask questions about L1X, L1Z and l4hr. I am just wondering whether L1X goes to...
from the Maintenance department...Speed sensor problem
Problem found in measures with passive magnetic sensors in a over-speed trip system.
By CCBryan on 17 September, 2014 - 8:22 am -
> Have you found out the cause(s) to this problem Jim? We did identify what we feel is the...
By Bitoy on 17 September, 2014 - 2:05 am -
Have you found out the cause(s) to this problem Jim?...
from the seeking product recommendations department...Modbus TCP temperature monitor
I'm looking for a product recommendation
By SG on 17 September, 2014 - 6:39 am -
See there... http://pcsensor.com/index.php?_a=product&product_id=109 Moderator's...
I am looking for much the same thing, a simple temp and humidity for my server room. I just want...
from the Forum department...Gas Turbine Rachet/Starting Problems
After trip found SSS clutch calibrated bolts broken
from the Gas Detector, Engineering department...Using a sigmatel USB IrDa dongle to communicate a Drager Xam 2000 with CC Vision software
How to use a sigmatel USB IrDa dongle to communicate a Drager Xam 2000 with its CC Vision software for calibration
Search the forums there should be similar problem but solved. Did you update all the necessary...
By Xpresi on 15 September, 2014 - 3:51 am -
Hi. I have the same problem with a sigmatel usb-irda dongle and windows XP. Do you get to solve...
from the Forum department...Yokogawa DCS Analog Module AAI143
Difference between analog mA value and their correspondent raw value.
Tunning-Raw Value should be
4 mA ----> 0% 6.16 mA ----> 13.5% 8 mA ...
Recently there was an unresolved thread involving the same model Yokogawa AI, here ...
from the Forum department...DCS analog input problem
DCS Analog input signals didn't work with ADAM card
Hi David, I got one information form yokogawa training material that last number in AI/AO cards...
from the operations department...AVR Functioning and MVAR control
AVR Functioning and MVAR control for Gas and Steam turbines
Suryapradhu, Transformer tap changers are available in different configurations, and without...
from the CPP department...Generator Turbine Speed Control
Effect of Reactive load throw off on Turbine (GTG) speed after Generator independent from Grid power.
Manoj, You seem to be providing conflicting information, and you also say, "...Practically,...
By Manoj on 16 September, 2014 - 5:56 am -
Your reply is an eye opener. We will have to seriously start thinking of Isochronous control for...
Manoj, 1) The fuel was not high at the time of isolation--it drifted higher. There are two...
By Manoj on 15 September, 2014 - 12:56 am -
Many Thanks CSA for the prompt reponse, Coming to your question: The turbine-generator (GTG)...
from the Forum department...Power Meter Destroys Modbus RTU Bus Communication?
Problem with SCADA system that supervises electrical power flow for a residential building. Connected with Modbus RTU over RS485 daisy-chained 2-wire. The communication on the bus seems to be destroyed with Schneider PM750 connected.
This link shows the shield connection to the PM750: ...
> Where are the terminating resistors and what value? Resistors are placed at the cable ends,...
> It is most likely a grounding issue - that the 2 vendors approached the 'reference signal to...
By Harvard on 15 September, 2014 - 11:45 am -
Two points: 1. RS485, technically speaking, is a 3 wire system, A, B and COMMON. But the...
Some notes: > They are interconnected through daisy-chain 2-wire RS485 The shield and...
By Lynn August Linse on 15 September, 2014 - 9:51 am -
It is most likely a grounding issue - that the 2 vendors approached the 'reference signal to...
from the Forum department...Upgrading Yokogawa CS3000 R3 DCS
Our existing DCS is only compliant with Windows XP HMI's having Vnet communication. What is the best way to upgrade the system for compliance with Windows-7 and having Vnet/IP communication?
from the DCS department...Emerson Delta V Training
Looking for online training of Delta V Emerson
I am not sure if I am addressing your specific question, but Emerson has an Educational Services...
from the gas turbine controls department...Removing Flow Divider Instrumentation on GE 7EA Turbine
GE 7EA turbine, will removing flow divider instrumentation affect operation on Fuel Gas, Mark IV Startup Lockout?
Dan, It should not. You can easily just determinate the speed pickups from the AIO TB and the...
from the Calibration department...Rosemount 3051 Calibration
Rosemount 3051 Calibration
By Sam on 15 September, 2014 - 7:28 am -
Ok let's get you on the right track. I will give you a detailed explanation on how to setup any dry...
from the Maintenance department...Fluid Variable Speed Drive Hunting
Hunting problem in scoop of Voith Geared Variable Speed Coupling R 18 K 500 M
By Mohammad Kashif on 14 September, 2014 - 11:46 pm -
> if it is pneumatically actuated, you might check for water build up in the instrument air...
from the Process Control department...Proficy Machine Edition 8.0
Proficy Machine Edtion 8.0 and 8.5
from the instrument department...Gas Chromo readings
Retention time of gas chromo
By W.L. Mostia on 14 September, 2014 - 12:15 pm -
To the Moderator, In regards to the statement: "Moderator's note: I think...
from the Forum department...Wafers Handling Robotics Arms
Questions about robotics arms and the accuracy requirements in manufacturing
from the opc department...Communication between Triconex PLC and Matrikon OPC Server Using TCM Module
Issue with Communication between Triconex PLC for SOE and Matrikon OPC server using TCM Module
from the Forum department...Voltage Levels in DO Cards of PLC
Which DO cards are better from the Reliability perspective - cards 24 VDC or cards that give 110 VAC?
By Steve Myres on 13 September, 2014 - 5:49 pm -
My take is a bit different. DC are the most reliable in most circumstances. Solid state outputs...
Never eat more than you can lift.
-- Miss Piggy