Posts from...Today, Wednesday, December 11, 2013
from the INSTRUMENTATION department...Foundation Fieldbus Instrument Simulation
how we can simulate any ff transmitter with a field communicator (0 - 100%) without injecting process variable?
By Leandro on 10 December, 2013 - 6:10 pm -
Hi Jonas, i new in FF fieldbus and i want to learn more. Do you have any documention (or site)...
from the TURBINE - Co-Gen department...Load Hunting
Will Load hunting happen when turbine runs in parallel with 2 4MW Engine?
Senthil... have you searched Control.Com Archives? Regards, Phil Corso ...
Senthil, We have no idea of the three gen-sets are paralleled with each other supplying an...
from the Automation List department...Control Valve Choking
i have some confusion about control valve choking phenomena...
By Roy Matson on 10 December, 2013 - 3:32 pm -
Slightly off topic. A good example of a valve operating under choke flow conditions would be an...
from the Thermal department...Connecting I/O cards between two PLCs
How to give the signal of one PLC to other PLC.
By Roy Matson on 10 December, 2013 - 3:19 pm -
In theory the neutrals should be at the same potential, especially if both PLCs get their supply...
from the Domestic power supply 220VAC department...My earthing/Ground pin shows voltage
The earth pin of my domestic power supply is showing voltage since one month
By Roy Matson on 10 December, 2013 - 3:04 pm -
This sounds very dangerous, you must get a competent electrician to check it out, Voltage on the...
By Bruce Durdle on 8 December, 2013 - 2:02 pm -
Whether or not the protective earth (PE) and power supply neutral (N) are connected depends on the...
By Dr R K Gupta on 8 December, 2013 - 2:59 am -
Thanks for reply. But neutral and earth are not connected together. These should never be. IN...
from the Instrumentation department...Steam Flow DP located above the pipe
Does this setup make sense?
By Roy Matson on 10 December, 2013 - 2:53 pm -
It looks like it will work. The horizontal portion of the tube between condensate pot and the...
> http://postimg.org/image/6ypb2xnv1/ Do you have such type type of installation? Is it...
from the Instrumentation department...Calibration
Doubts regarding the calibration and operation of smart type transmitters
By Bruce Durdle on 10 December, 2013 - 2:11 pm -
There are three parts to the signal train inside a smart transmitter. First is the conversion of...
By ansuman on 10 December, 2013 - 11:37 am -
basically trimming means to remove the offsets that are either due to sensors or signal...
from the Forum department...Communication Problem with Moscad RTU (8XXXXXX)
We are facing a problem while communicating with Motrola Moscad RTU CPU 300. It has modbus protocol and we are able to bring around 300 modbus registers using kepware opc server but there are some addresses like 8XXXXX which does not look to be modbus.
By Mark on 10 December, 2013 - 1:01 pm -
I forgot to add that PeakHMI can access all the registers in the Omni flow computer and can publish...
By Mark on 10 December, 2013 - 12:19 pm -
Hello, While Omni flow computers can respond to standard MODBUS, for some of its register, it...
By Jack D on 10 December, 2013 - 10:30 am -
Hassan, I am not familiar with Omniflow computers, but I assume what you are saying is the...
By Harvard on 10 December, 2013 - 9:59 am -
Are you sure it is 8XXXXX and NOT 8XXXX? If it is 8XXXXX then you could target from 800001 to...
from the Forum department...Modbus communication with Danfoss FC 302.
Modscan communication using Modscan32.
By Nishideep on 10 December, 2013 - 10:36 am -
Everything I have repeatedly checked. I am using Adam 4561 RS485 to USB converter. But I am unable...
from the serious department...Reverse Power Problem in Cummins Generator.
Reverse Power Problem.
all the PTs and CTs connections are OK, also the fuel reached OK. i think the problem is electronic...
Detection of power relies on PTs as well as CTs.
Fuel = Power No Fuel = No...
from the programming language department...Scripting visual basic in Factorylink
I having a lot of error with script in visual basic of Scada Factorylink V7.5 of siemens.
from the Gas Turbine department...Why Compressor Offline Wash Effluent is Highly Acidic?
I am not sure whether about the standards and limits for effluent (liquid) from offline compressor wash. Mine gave pH 3.8 (lowest).
By crusader on 10 December, 2013 - 4:54 am -
Dear all, Just wanna share that, after changing to Zok 27 or Adrox 6377, it seems the pH...
from the Forum department...ABB TZID-C Electro-Pneumatic Positioner
Control Parameters of TZID-C Positioner
from the INSTRUMENTATION department...EEPROM DOWN LOADER
How to download LVDT feed backs to HMI via eprom?
There are instructions for using the EEPROM Downloader and the I/O Configurator in the Mark V...
from the Forum department...Interface transmitter displacer type
The theory of displacer is when a body is immersed in a fluid, it loses weight equal to the liquid...
from the WonderWare Upgrade Failures department...WonderWare Upgrade Issues
Upgraded PC. WonderWare updated from 7.1 to 2012 R2 (10.6).
You may need to upgrade to a Ethernet processor also....
You will want to use the DA Servers that come with Intouch/WonderWare. WW Tech support can help....
By Benoit on 9 December, 2013 - 9:41 am -
Are you still using "DDE" communciation method within Intouch Window Maker access points,...
from the Instrument &Control department...Control Valve Positioner Action & Travel Scale
Control Valve FF positioner (Masoneilan FVP-110) Action (Direct/Reverse) and travel scale range.
I also read the reference manual for FVP-110. Currently ACT_FAIL_ACTION parameter is set as: ...
By Jim Delaney on 8 December, 2013 - 8:02 pm -
1) >ACT_FAIL_ACTION for ATO is fail to Close. (as per project Instrument Data Sheet) 2)...
from the Forum department...Inverted Pendulum Balancing
I have some theoretical questions about a problem with Inverted Pendulum Balancing
Any further help or tips about how to tune an LQR is still needed and will be very appreciated!!...
from the Forum department...TGR and EHG faults on FIJI Steam Turbine
TGR light fault and EHG light fault
from the Technical department...information about KWK me▀wandler CT bushing
Looking for information about CT Bushing made by KWK Me▀wandler GMBH, used in ABB transformers
from the powerplant department...Going to Premix Mode from Lean Mode
why premix not done in GE FRAME9
abdi, Yes; CPD does seem low. Do all the CPD transmitters indicate the same pressure? How does...
By abdi on 8 December, 2013 - 6:02 am -
hi, AT TIME 15:03:30:500 FLAME at primary zone extinguished,then at time 15:03:46:500 the flame...
By 309EGuy on 7 December, 2013 - 7:54 pm -
Have you checked the operation of the tertiary manifold gas purge valves VA13-3 and VA13-4. We...
from the Forum department...DLN Frame 5
Why is IBH is compulsory when Fuel Gas pressure is lower than 21 barg?
Mustapha, If I understand this post and summary correctly, I think you have it slightly wrong. ...
from the machinesRotating < 60 cycles/m department...Syncing two rotation machines
PLC engineer trying to sync two machines dropping on a conveyor. They drop say 50+times per minute.
Josey... see: http://www.control.com/thread/1026150987 Regards, Phil Corso...
from the Power Gen department...Can automation equipment / PLC program use States
Are most automation equipment broken down into finite state machine logic?
By Vladimir E. Zyubin on 8 December, 2013 - 6:42 am -
Hi, Jonathan We are just teaching student to program with the Reflex language and explain common...
from the Forum department...reactive power and fuel consumption
how can the reactive power affect the fuel consumption
By Engr. Md. Zakiul Hoque on 8 December, 2013 - 2:34 am -
I agree with you partially but not fully with your comment "this should increase the fuel...
from the engineering department...Additional sites to learn about Power Plant Engineering
Any other Sites around for electrical engineering and power plant engineering?
from the department of redundancy department...Interfacing with a GE Mark VI
What are the best practices in interfacing with a GE Mark VI?
Bob, most power plant site I have seen that are using GE gas turbines and an Ovation DCS are...
I was aware that the Mark VIe could be equipped with the ability to communicate via MODBUS without...
from the Help department...Formulas
Searching for information to work out formulas
"A raccoon tangled with a 23,000 volt line today. The results blacked
out 1400 homes and, of course, one raccoon."
-- Steel City News