Posted by SUDHEESH V on 12 June, 2014 - 12:24 amIS EARTHING NECESSARY FOR AN SMPS WHO'S INPUT IS FROM AN UPS?
IS EARTHING NECESSARY FOR AN SMPS WHO'S INPUT IS FROM AN UPS?
Posted by elabbassy on 11 June, 2014 - 9:32 ammeasurements in Siemens SICAM AK1703
measured values cyclic transmission IEC 104
Posted by Fluoronator on 11 June, 2014 - 7:42 amThe shield shocked me!!!
Why is my cable's shield 'Hot'?
Posted by deep123 on 11 June, 2014 - 3:37 amconnecting one MODBUS slave device to two masters
i want to connect one energy meter to two separate masters.
Posted by Fyzal on 10 June, 2014 - 10:00 pmLightning strike and thermocouples measurement failure
Thermocouples measurement to <C> processor had fault after lightning strike.
Posted by Francesco on 10 June, 2014 - 12:03 pmlimit output controller signal to avoid saturation
How to limit the output signal of an unstable control to avoid actuator saturation.
Posted by Gagandeep Singh on 10 June, 2014 - 5:51 amControl Valve Positioner
Inlet air pressure of smart positioner is varying
Posted by ABDI on 10 June, 2014 - 12:16 amSwirl Angle Software for GE
Can I use swirl angle software for GE FRAME 9E NON-DLN TYPE with GE FRAME 9E DLN?
Posted by AYH on 9 June, 2014 - 11:22 pmcompactlogix losing program after power recycle
my compactlogix battery is ok, but I lose the program when I recycle the power
Posted by apv on 9 June, 2014 - 12:54 pmLightning affecting Frame 6 Gas Turbine
Lightning affecting Frame 6 Gas Turbine MarkVI cards.
Posted by vk on 9 June, 2014 - 9:39 amProblem in command execution from dcs on modbus
Problem in command execution from dcs on modbus
Posted by Sam on 9 June, 2014 - 5:21 amPower supply impedance
How do I find the impedance of a 220VAC power supply
Posted by Reeny on 9 June, 2014 - 2:48 amSiemens Gas Turbines
please, any one can help me in how to open and close pilot control valve by using IBS software and energizing trip solenoids.
Posted by Franco Kew on 9 June, 2014 - 12:52 amHART multidrop reliability
If one HART device fails, will the subsequent HART devices unseen from the system?
Posted by Rakesh on 8 June, 2014 - 2:16 pmDOL starter Motor to convert Drive control motor
Need to change with a 37 KW DOL starter (3 Wire) winding to suitable soft starter or drive control to reduce starting load.
Posted by Paul on 8 June, 2014 - 12:53 pm0-10v signals
Sending multiple 0-10v dc signals
Posted by Setu on 7 June, 2014 - 9:40 pmVVVF drives - Internal speed calculation
How is speed of the motor calculated INTERNALLY by a VVVF drive?
Posted by Mike on 7 June, 2014 - 9:35 pmKay-Ray Sensall Level Commander LC-I
Changing parameters on a Kay-Ray Sensall Level Commander
Posted by Reeny on 7 June, 2014 - 4:53 pmDiesel power plant
any one can help me in determining best technical (instrumentation and control)specification for Diesel power plant (more than 20 MW).
Posted by Ben on 7 June, 2014 - 2:34 pmReading a battery voltage in to siemens logo
Reading a voltage from a battery in to an analog input on my Siemens logo
Posted by krishnan on 7 June, 2014 - 8:51 amMotor sizing
three phase motor sizing for pumps/compressors
Posted by Hameed on 7 June, 2014 - 5:06 amGenerator protection - Rotor earth fault
Why does Rotor earth fault protection have two stages
Posted by mechanation on 6 June, 2014 - 11:31 amLime slurry density meter
We are trying to measure density of our lime slurry which approx 22% solids
Posted by EG on 6 June, 2014 - 4:19 aminterview questions automation engineer
need interview questions and answers for automation engineer
Posted by David on 5 June, 2014 - 10:41 pmWhat kind of Modbus map lacks 4xxxxx registers
ASCII, RTU, TCP, now ABB?
Posted by GD on 5 June, 2014 - 6:27 pmModbus "pollsets"
Need advice on creating pollsets in Isagraf
Posted by Sachin Mewara on 5 June, 2014 - 3:33 amTurbine HPCV hunting
Turbine HP CV is hunting in MW tracking mode.
Posted by Tulus Lubis on 5 June, 2014 - 1:01 amInstallation of Pressure and Temperature Sensor for Orifice Flow Meter
Standard installation for Gas Flow Measuring with Pressure and Temperature compensation.
Posted by Juan on 5 June, 2014 - 12:53 amConductor VMS dual monitors
having trouble to set up 2 monitors in a Digital (that's the brand) PC with Conductor VMS O.S. and SRM Bios.
Posted by Chas on 4 June, 2014 - 7:52 pmGE Sprits Skid Water Hammer
GE Sprits skid Coax solenoid valves cause major water hammer from boiler feed to fog nozzles.
Posted by Brian on 4 June, 2014 - 2:31 pmUsing OPC to communicate with GE MKVIe
I'm trying to find out if anyone is using OPC to talk to a GE MKVIe from an ABB INFI90 DCS System.
Posted by jasoin carroll on 4 June, 2014 - 1:11 pmCable tray separation
Is there a standard that says the highest voltage cable should go in the top or the bottom tray?
Posted by Paul D. on 4 June, 2014 - 10:28 amOld A-B SLC Controller
Password protected program and no offline file.
Posted by Daneezy on 4 June, 2014 - 4:08 amjacking oil pump
From what source does the jacking oil pump 88QB gets its source of oil?
Posted by Casualguy on 4 June, 2014 - 12:08 amLocal Fault on SLC 500/05 ASB
Regarding local fault declaration on SLC 500 ASB
Posted by Robert Dampier on 3 June, 2014 - 12:02 pmSensus water meter
Trying to Query a Sensus water meter with a ECR
Posted by iii on 1 June, 2014 - 8:59 pmWhy use SRV?
There is a SRV where we generally found a very little difference between inlet & outlet of this valve.
Posted by Amrit on 1 June, 2014 - 6:56 pmTransformer Secondary Voltage Ratings
Questions about transformer secondary voltage ratings
Posted by MIA on 1 June, 2014 - 9:41 amMB+ Communication Error
MB+ (MODBUS) Communication Error with Remote PLC
Posted by Balasubramanian on 1 June, 2014 - 5:18 amTurbine Vibration micronmteter to mm/s conversion table
How to convert the Turbine shaft vibration in micrometer to mm/s conversion?
Posted by Vimal Gupta on 31 May, 2014 - 9:15 am4 or more bad Exhaust T/C fault
Gas turbine Frame-V got tripped on PCAA Module fault in MARK-Vie
Posted by RAMESH on 31 May, 2014 - 5:43 amDifferential Pressure Transmitter Calibration
Changing the range of Differential Pressure Transmitter Calibration.
Posted by luis carlos sandoval on 30 May, 2014 - 8:22 pmrs 485 deep sea 7320
modbus rtu slave rs485
Posted by John on 30 May, 2014 - 2:49 pmSpinning disabled in Siemens SGT400 gas turbine
Accidentally spinning command disabled during coasting down time from shutdown
Posted by Rick Holman on 30 May, 2014 - 8:43 amPneumatic tubing colors
pneumatic control circuit tubing color code standards
Posted by Sagat on 30 May, 2014 - 4:03 amVFD SPEED OF 60HP DRIVE
I am using AMTECH make VFD of 60HP for blower application.
Posted by TF on 30 May, 2014 - 4:02 amMk5 Speedtronics
Gaining a better under standing of the process control that usually resides within a GE Mk5 Speedtronics
Posted by tauqeer on 30 May, 2014 - 2:58 amingersoll rand xe controller remote comunication
Communicating and controlling an ingersoll rand xe145-f controller
Posted by Amin on 30 May, 2014 - 1:52 amBackpressure Steam Turbine rotor axial displacement towards inactive side
Steam turbine rotor (back-pressure steam turbine) - rotor axial movement towards inactive side. Why?
Posted by me on 29 May, 2014 - 8:28 pmToshiba Automation Co PRS equipment
Looking for any information on Toshiba PRS system
Posted by kuldeep on 29 May, 2014 - 4:51 pmYokogawa CS1000 Report problem
report tag communication error
Posted by GBrown on 29 May, 2014 - 4:50 pmInstrument Tech Training Topics
My boss has asked me to create a training program from the instrument techs that is one 3 hour course a month for 2 years.
Posted by Paul Tinetti on 29 May, 2014 - 4:48 pmEDDL files stored in/on device?
Why haven't manufacturers figured out a way to store EDDL files in on-board memory of devices?
Posted by Ashiq on 29 May, 2014 - 5:38 amSolatron flow computer Corrected volumetric flow
re-configure Solatron 7951 flow computer.
Posted by Josh on 29 May, 2014 - 4:53 amThree way valve - on/off
Three way valve - on/off control design
Posted by Alphite on 28 May, 2014 - 4:25 pmControlling flow and pressure to a spray ball
How to control flowrate and pressure with a positive displacement pump.
Posted by Tom on 28 May, 2014 - 5:03 amIs Barrier Requirements
IS Barrier Requirements for PLC
Posted by hatimnazir on 27 May, 2014 - 3:12 pmHoneywell DCS Server and Stations timing Synchronization Issue
Honeywell DCS Server and Stations timing Synchronization Issue
Posted by me on 27 May, 2014 - 11:14 amLeary M06 Microwave Sensor
Looking for information on the M06 Microwave Sensor from Leary
Posted by Norm on 27 May, 2014 - 9:25 amMark VIe 88BD motor HMI control Lead/Lag
Cannot control 88BD diffuser blower motors from control room HMIs
Posted by Moaz Tajammal on 27 May, 2014 - 9:15 amCMS (GE) Anti-Surge Controller
Anti-Surge Controller acting weirdly.
Posted by Javier on 26 May, 2014 - 11:42 amTemperature Setpoint during initial loading
Steam Setpoint during initial loading on a combine cycle 9FA
Posted by Sagar on 26 May, 2014 - 5:45 amVFD Speed
Over speeding a motor by reference signal even if the frequency limit has been set in the VFD module
Posted by Sceptical Fred on 25 May, 2014 - 9:33 pmMk6 Speedtronic Capability
Ge Mk6 Speedtronic maths ability.
Posted by Derrick on 25 May, 2014 - 9:17 pmFoundation Fieldbus - Linearization Type
Foundation Fieldbus Linearization Type
Posted by islam84 on 25 May, 2014 - 5:43 amAnti surge valve and enabling solenoids
Why is the anti surge valve associated with two enabling solenoids?
Posted by Genjua on 25 May, 2014 - 4:44 amConnection for Twido RS485 with XBT OT DB9
Connection/pinouts of the cable that connects a Twido RS485T which contain 3 Terminal with XBT OT COM2 DB9 which contain 9 Termnials?
Posted by chudy on 24 May, 2014 - 12:21 pmgas turbine start up
is it possible to start a gas turbine plant on black start with only 2 processors?
Posted by ABDI on 23 May, 2014 - 11:34 pmUnable to go into Premix Mode
Unable to go into Premix Mode. Should we use Primary or secondary mode?
Posted by tester89 on 23 May, 2014 - 10:38 amMODBUS Protocol Confusion
Would like some clarifications on Modbus variations.
Posted by Mario Soto on 22 May, 2014 - 8:22 pmJAGXTREME and Yokogawa power meter
I want to get a torque value output from a Jagxtreme terminal so I can use it as torque input (BNC connection) for a Yokogawa power meter (motor version)
Posted by James on 22 May, 2014 - 4:49 pmMason's rule help
need help solving a flow chart from mason's rule
Posted by Asif Ferdoush on 22 May, 2014 - 1:31 pmPower System Control & Stability
What happens when power system is subjected to any kind of disturbance?
Posted by amin hadavi on 22 May, 2014 - 10:33 amYaskawa servo motor
Yaskawa servo motor working noisy & vibrating
Posted by adel on 22 May, 2014 - 7:21 amTurbine Generator and Step-up Tansformer Size
what is the impact of power factor on the size of GT and Step-up transformer
Posted by JK Seo on 22 May, 2014 - 1:34 amGas Turbine Water Wash
Gas Turbine Water Washing Procedure
Posted by Fluoronator on 21 May, 2014 - 7:03 pmWhy are electrical systems grounded?
My google search has only yielded superficial answers. What is the real reason?
Posted by raul on 21 May, 2014 - 6:33 pmVacum in Steam power plant
Variation of steam temperature in vacuum ejector.
Posted by Jhon on 21 May, 2014 - 10:05 amBuffer Air Quality
Buffer air for sealing in dyno or centrifugal compressors.
Posted by islam84 on 21 May, 2014 - 9:09 amAntisurge valve failure reporting case study
Antisurge valve failure reporting case study
Posted by Broner on 21 May, 2014 - 3:08 amFailed 15 kV Vacuum Circuit Breaker
Failure of a 15 kV POWL-VAC circuit breaker protecting the GSU transformer
Posted by Talluri on 21 May, 2014 - 2:59 amEndress+Hauser Level Transmitter Hunting
What is the possible cause for Level transmitter hunting?
Posted by Manfred Hinsch on 20 May, 2014 - 6:01 pmwoodward EGB governor with 723plus
Require guidance / config for initial setup:
Woodward EGB governor / Woodward 723PLUS
Woodward EGB governor / Woodward 723PLUS
Posted by Johnplayers on 20 May, 2014 - 9:42 amGE Gas Turbine Corrected Speed
Importance of GE Gas Turbine Corrected Speed
Posted by Cyril on 20 May, 2014 - 2:47 amPower Plant blackout
Reason for Total power plant blackout
Posted by control me on 19 May, 2014 - 11:57 amGas turbine trip
Gas turbine tripping. Basic steps for troubleshooting.
Posted by mahdi on 17 May, 2014 - 11:42 pmDeltav Network
Link two different version of DeltaV
Posted by Reeny on 17 May, 2014 - 5:00 pmSiemens s7 backup
what is the process to take an online backup of steam controller (S7-400 cpu417H).
Posted by Reeny on 17 May, 2014 - 4:41 pmcontrol adinistration
is there a way to normalize the new ES with the AS?
in Siemens TXP control system
in Siemens TXP control system
Posted by mhmd on 16 May, 2014 - 5:44 pmTXP control system administration
is there a way to take an image of ES, PU, SU, OT, without using SCSI tape reader
Posted by J.Atkinson on 16 May, 2014 - 9:09 amWeb XML into DCS/PLC
Require a solution for communicating XML data from the web into a DCS / PLC system.
Posted by Shaker Hashlan on 16 May, 2014 - 5:34 amGovernor Response
what is the Governor Response and how to calculate and size it?
Posted by scientif on 16 May, 2014 - 4:38 amDiesel Sets vs Gas Reciprocating Engines
Number of sets (diesel or gas engines) to start a load.
Posted by TheController on 15 May, 2014 - 5:21 pmOne control variable for two loops
Can we have one control variable control two different loops?
Posted by Neo on 15 May, 2014 - 4:57 amEnron Modbus slave Developement
Basic question regarding Enron modbus stack/cache
Posted by Prasana on 14 May, 2014 - 4:29 pmVortex Flow Meter
Troubleshooting Vortex Flow Transmitter
Posted by Controller on 14 May, 2014 - 1:40 pmWhy Integration in PID causes overshoot?
Understanding of how PID controller affect a system.
Posted by Kuummaarr on 14 May, 2014 - 10:54 amTrouble in generators
Generator unable to maintain load in auto mode. When running on load individually then it is working fine. The governor motor contactors high and low keep operating for a long time.
Posted by JoseyWales on 13 May, 2014 - 4:54 pmNetwork Issues
My network settings are correct but I am not able to connect to the IP address 10.1.1.250
Posted by Jeet on 13 May, 2014 - 9:34 amPower System
What happens if an alternator is running on 0.9 pf (lag)?
All the good ones are taken.