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Forum Archive
DeviceNet vs Ethernet
Posted by RonWensley on 3 September, 2015 - 10:43 am
Replacing an MCC do I use DeviceNet or Ethernet?
GRID Disturbance
Posted by Sikandar7641 on 3 September, 2015 - 9:04 am
Grid disturbance causing breaker openings
4
replies
Higher CO Emission in GT Frame 6B Gas Fired
Posted by aksunil on 2 September, 2015 - 9:28 am
Higher CO emission (50ppm) in Gas turbine exhaust since atmospheric temp has reached 45 deg C
Integrate a LADDER Program Using an HMI Interface in TIA PORTAL
Posted by saoud on 2 September, 2015 - 7:00 am
Integrating a LADDER program in an HMI interface with different sources in TIA PORTAL?
PI OPC to EXAOPC
Posted by abdulshor on 2 September, 2015 - 6:43 am
Connecting to EXAOPC from PI OPC Client tool
Transferring Data from A/B PLC via MODBUS RTU
Posted by Shakeel on 2 September, 2015 - 1:19 am
Transferring scaled analog data from Allen Bradley SLC 5/05 PLC to a LT100 (Tbox) using MODBUS RTU
Photoelectronic Sensor Replacement
Posted by connected on 1 September, 2015 - 4:10 pm
Looking for a replacement for photoelecronic sensor type Tippkemper AX-S-25-P30-S74. (EEx ia IIC T6, circular 30mm, namur)
2
replies
HMI Indicators
Posted by baberb on 1 September, 2015 - 2:26 pm
How does everybody like to indicate on HMI the state of digital IO? Conventions on color, shape, text, or a combination that is intuitive at a glance?
2
replies
GE Gas turbine Frame 6 SFC
Posted by Sikandar7641 on 1 September, 2015 - 8:23 am
How does the SFC system works for GE frame6 Gas turbine?
6
replies
MARKV: Swapping BNC Connectors of EX2000 and MarkV HMI on CTBA Card
Posted by Esoteric_Stone on 1 September, 2015 - 7:36 am
Can we swap the Arcnet cables of EX2000 and MarkV HMI on CTBA card?
High Performance Field Tools
Posted by ih on 1 September, 2015 - 6:06 am
How would you like to work in free time to create a solution that would increase productivity of the field data input?
1
reply
Voltage Pull Down
Posted by Stewart on 1 September, 2015 - 4:00 am
Voltage being pulled down in IO panels.
1
reply
Connecting a Device with Jamod Library and MODBUS RTU.
Posted by AJ on 1 September, 2015 - 12:58 am
Trying to connect Java application to a meter using MODBUS AND Jamod. Result is always 32768.
Gemstart 3 Link Failure
Posted by sudamadhav on 31 August, 2015 - 3:47 pm
Getting a Gemstart 3 link failure error which causes MCR to lose communication with drive.
4
replies
Generator Synchronizing Issues and Voltage Setpoint Mismatch
Posted by bhol on 30 August, 2015 - 10:25 pm
Having generator synchronizing issues in a cross current (reactive differential) compensation loop control. Also, noticed issues with voltage set point mismatch.
4
replies
Synchronous Generator Characterstics
Posted by sudamadhav on 30 August, 2015 - 7:48 pm
Looking for information about armature reaction, pole slip, and droop characteristics of the synchronous generator.
1
reply
Control Speed Trim Port of Generator Governor Using Micro-controller
Posted by khoa261 on 29 August, 2015 - 11:41 am
Taking control of "speed trim" port of Woodward governor with variable low voltage using a MCU.
3
replies
Benchmarking for 9FA
Posted by mkgupta on 29 August, 2015 - 9:00 am
Benchmarking of Plant having GT9FA in block configuration of 1:1:1
2
replies
Replacing a 25 Amp Single Pole Contactor
Posted by reteagle on 28 August, 2015 - 3:32 pm
Replace a 25 amp single pole contactor with a 30 amp single pole contactor.
SICK documentation for 'SICK_BCR_CP340'
Posted by OttoVonChriek on 28 August, 2015 - 3:19 pm
Looking for old SICK docs for CLv4xx 3964 S7300 FB
Download Program from Hand-held Programer to Laptop
Posted by Larry Kehner on 28 August, 2015 - 2:08 pm
How to transfer program from hand-held programmer to laptop
Control Valve and MWP
Posted by Anonymousagain on 28 August, 2015 - 6:12 am
The standard class IV is 50 psi seat test. What about the MWP of the valve?
1
reply
Gas Turbine Inlet Gas Pressure Control Valve Modification
Posted by VKGUPTA on 28 August, 2015 - 3:37 am
PCV is operated by instrument air of inlet of gas turbine.
3
replies
MODBUS Communication Between the Intellisys Controller and Siemens PLC
Posted by ehsan213 on 27 August, 2015 - 1:42 pm
Communicating between the Intellisys controller and Siemens PLC using MODBUS RTU
3
replies
INFI-90 DCS VS ABB S+ & Emerson Ovation DCS
Posted by selvamcastro on 27 August, 2015 - 12:09 pm
Looking for advice about upgading old INFI-90 with new rack and card INFI-90 OR ABB HPC800 modular DCS.
1
reply
P Level Control of Multiple Tank System
Posted by Hakim on 27 August, 2015 - 11:04 am
PI or PID liquid level control system for 2 to 4 tanks.
3
replies
4 - 20 ma Length Calculation
Posted by Greg6313 on 27 August, 2015 - 10:20 am
Is there a certain calculation that I can use to find out what size Wire to use with a 4-20ma signal?
3
replies
SQL to MODBUS via PC
Posted by liestol on 27 August, 2015 - 4:45 am
Looking for a solution to make data in a SQL database available for a MODBUS system.
3
replies
Infi-90 Analog Slave Module Error
Posted by lolai on 26 August, 2015 - 2:52 pm
Redundent MFP01 slave card causing ASI02/03 failure
2
replies
Siemens S7 and TIA portal for learning
Posted by AWEZ on 26 August, 2015 - 2:45 pm
I want to learn about Siemens PLC Siemens programming and WinCC.
3
replies
GCV Calibration problem
Posted by kurosh1 on 26 August, 2015 - 10:42 am
Gas control valve doesn't open based on calibration 5 step setpoint
1
reply
Thermocouple
Posted by rng on 26 August, 2015 - 3:12 am
Why the thermocouple types are named like B, K, T, S etc. What is the scientific/technical reason behind this naming?
Load Gearbox Vibration on Frame 6B
Posted by Hetfield on 25 August, 2015 - 9:47 pm
High vibrations (12-13mm/s) being observed during operation at load gearbox of a Frame 6B machine
I'm not getting back in my HMI application.
Posted by angeloalves23 on 25 August, 2015 - 8:22 pm
I have an application using "Factory Talk View SE 6.0" I'm not getting back in my HMI application. I'm using "HMIBackup" During the backup the following message appears:
1
reply
Unable to Backup RSView
Posted by angeloalves23 on 25 August, 2015 - 8:16 pm
HMIBackup not backing up RSView program.
4
replies
Heating and Ventilation Logic for GE-9E GT
Posted by rokan_123 on 25 August, 2015 - 3:52 pm
Necessity of 88BT fan running for GE Heavy duty Gas Turbines.
Speed Load Control Motor
Posted by fosilfuel on 25 August, 2015 - 3:26 pm
Speed Load Control Motor replacement
1
reply
DP Level Transmitter
Posted by kaliwali on 25 August, 2015 - 2:31 pm
Different readings on DP level transmitter during night and day.
MAN Gas Turbine Acceleration Limitation
Posted by salah1990 on 25 August, 2015 - 12:01 pm
Gas Turbine speed limited after "acceleration limitation" and "GMV limite stroke" messages appear in Siemens' HMI.
1
reply
Effect of High Modified Wobbe Index on GE frame 9E Combustor Dynamics
Posted by nacheez on 25 August, 2015 - 11:57 am
A GE PG9171E DLN 1.0 gas turbine is operating at a Modified Wobbe Index of upto 53 (13% off design) whereas the design limit is 5% deviation. What effect does this have on Gas turbine hardware?
Orifice Plate Sizing and Thermowell Sizing
Posted by Nishana on 25 August, 2015 - 1:44 am
Calculating orifice plate sizing and determining thermowell size
2
replies
Interact HMI Driver Problem
Posted by brendanb on 24 August, 2015 - 2:36 pm
I messed up and DOS HMI for a machine at my business. The PLC does not communicate properly back to the XP-based DOS emulator. I am in deep shit if I cannot fix this.
DP Transmitter Tapping
Posted by christy on 24 August, 2015 - 9:56 am
How does calibration vary and what happens when low pressure tapping connected to high side of DP transmitter and vice versa?
1
reply
CSA for Canada in Turbine Fuel Shutoff Applications
Posted by Paul Brock on 24 August, 2015 - 9:02 am
Understanding what codes/standards are applicable for fuel shutdown/isolation valves on gas turbine applications. CSA for Canada is what I am looking for assistance with.
4
replies
How to calculate cable size, M.T.S and MDP
Posted by qaisghafari on 24 August, 2015 - 6:03 am
How to calculate cable size, M.T.S and MDP
1
reply
11kv Motor Failure Checks
Posted by ahdash on 22 August, 2015 - 5:52 pm
High tension motor failure
GE Frame 6 Gas Turbine Valve Maintenance/Testing
Posted by dipankarkh on 22 August, 2015 - 2:41 pm
What maintenance strategy & testing procedure shall be followed for GE frame 6 gas turbine valves
Gas Flow Rate for Gas Engine
Posted by Goldisach on 22 August, 2015 - 1:19 pm
can some tell me how to calculate gas flow rate to run an engine?
6
replies
Frame 5 Not Accelerating During Startup
Posted by Jimbo76 on 22 August, 2015 - 12:43 pm
Frame 5 not accelerating during start up??
1
reply
Hardware Failure of Temperature Transmitter
Posted by Joe on 22 August, 2015 - 4:13 am
Hardware failure found on Honeywell STT25H. During troubleshoot got messages like open circuit, temp sensor broken, etc.
1
reply
Turbine Vibrations after Engine Change-Out
Posted by Irhazidi on 21 August, 2015 - 9:51 pm
Turbine vibration after installing new engine on gas turbine generator set.
2
replies
Radar Level Transmitter
Posted by chetan_hp on 21 August, 2015 - 1:42 pm
My radar non contact level transmitter FF compatible is having fluctuations in indications from 14 to 55%.
4
replies
How Does The Output Of The Pid Controller Remain Non-Zero?
Posted by Pratikchatterjee on 21 August, 2015 - 7:44 am
How does the output of the PID controller remain non-zero after the error becomes zero?
1
reply
Hand Control Valves
Posted by Ekeoma on 21 August, 2015 - 7:42 am
Do we really need hand control valves?
Boiler Re-rating/Revamping
Posted by dax2172 on 21 August, 2015 - 5:59 am
Revamping of old boiler with regards to pressure and flow.
1
reply
Power Factor On DG
Posted by GGN on 21 August, 2015 - 5:43 am
Benefits of improved PF on alternator
3
replies
Preparing to Synchronize a Generator to the Grid
Posted by job2004 on 21 August, 2015 - 5:25 am
Why won't synchronization occur if the voltage produced by the generator is not equal to the grid's voltage?
1
reply
Emergency Shutdown Occurences in Mini Refinery
Posted by cooper_doly on 20 August, 2015 - 11:42 pm
What happens if we put a lot of causes to trigger Plant Emergency Shutdown
4
replies
Explain How Thread is Worn Down
Posted by Mark86 on 20 August, 2015 - 2:33 pm
I am wanting to explain to a customer as detailed as possible how the wear on thread could present a safety issue by putting together and taking apart NPT threaded iron.
2
replies
Speed Control
Posted by nikkumnit on 20 August, 2015 - 6:09 am
Speed regulation at no loads and loads in alternators
Hydraulic Turbine: Run Away Speed and Load Rejection
Posted by VijayKmath on 20 August, 2015 - 5:24 am
I have got Run away characteristics data from customer; Curves of Speed vs Wicket Gate Opening (WGO) and Discharge Flow vs WGO. I am unable to link these characteristics to the basic modeled HT.
Hydraulic Turbine
Posted by VijayKmath on 20 August, 2015 - 3:31 am
Hydraulic Turbine- Run Away Speed & Load Rejection
1
reply
Cold Junction Compensation for Thermocouple (I/O card: BMXART0814)
Posted by sta on 20 August, 2015 - 2:13 am
Need some suggestions regarding selection of CJC (cold junction compensation) for TC
11
replies
Why Fuse Both Legs in a DC Control Cabinet?
Posted by FrankKant on 19 August, 2015 - 8:18 pm
Why would you want to fuse both the positive and negative side of a 24VDC control circuit?
2
replies
Looking for a Motor Drive
Posted by ethanb on 19 August, 2015 - 2:41 pm
Looking for a motor drive and I don't know where to start
9
replies
125VDC Both Legs Having Difference
Posted by VKGUPTA on 19 August, 2015 - 7:06 am
Mark-Vie 125VDC Input supply -VE phase showing -80VDC and + phase showing +45VDC.
7
replies
Rosemount Pressure Transmitter 2051TG vs 2051TA
Posted by QUANGNGUYENVAN on 19 August, 2015 - 3:58 am
Compare the 2051TG and 2051TA Rosemount Pressure Transmitter
2
replies
Sourcing Metallised Foil Capacitor
Posted by xylstra on 19 August, 2015 - 12:40 am
Does anyone know a supplier of 1200mFD Metallised Foil Capacitor?
5
replies
Gas Turbine Coupling Failure
Posted by fiskola on 18 August, 2015 - 1:29 pm
After gas turbine put on cooldown,speed got to 20rpm but came down to zero on "Starting means cooldown trouble fault". The cranking motor coupling sheared. What can be responsible for this damage?
Yokogawa ProSafe-RS
Posted by allen on 18 August, 2015 - 9:56 am
What is the difference between between CENTUM VP and ProSafe-RS?
1
reply
Torque Tube in Displacer Type Level Transmitter
Posted by AZHAR on 18 August, 2015 - 7:01 am
What is the need for torque tube in displacer type level transmitter?
4
replies
Droop Speed Control in Gas Turbines
Posted by gtwoman on 18 August, 2015 - 6:37 am
Speed Reference is 103% at base load in a unit with 4% droop setting when actual speed is 100%
Request for Advice on Use of MTL Varrier to Link 2 Active Aignals
Posted by Sijuade on 18 August, 2015 - 6:01 am
Need advice on the appropriate MTL barrier to be used to connect a device-powered signal coming from a locally powered meter with analogue output (4-20mA @ 24V ) to an active DCS.
2
replies
Block L39VV7 in MKVIE
Posted by bil07 on 18 August, 2015 - 5:26 am
BLOCK L39VV7 IN MKVIE
BRC410 in INFI90 OR S+ MODULAR DCS
Posted by castro on 18 August, 2015 - 5:25 am
Need advice regarding justification over BRC410-infi90 system or SYMPHONY PLUS HPC800
2
replies
Level Under Vacuum
Posted by habdelhady on 18 August, 2015 - 4:22 am
How do you measure correct level under vacuum?
2
replies
How to Position a NPT Pressure Gauge
Posted by Daniel on 17 August, 2015 - 1:17 pm
Installing and positioning a pressure gauge in the desired view angle
ABB ACS800 control through LabVIEW 2015q Using MODBUS
Posted by trimroth on 17 August, 2015 - 11:06 am
Control an ABB ACS800 with LabVIEW 2015 using Modbus TCP
2
replies
Digital Inputs Monitoring
Posted by Ali Al-Shaibani on 17 August, 2015 - 6:21 am
We would like to monitor 16 digital inputs from an HMI
1
reply
How to Read the Reactive Power in Energy Meter
Posted by Roadz on 17 August, 2015 - 5:16 am
How to read the reactive power in a Itron Sl 7000 energy meter
Induction Generator Connected to a Standalone Synchronous Generator
Posted by Shahvirb on 16 August, 2015 - 12:33 pm
Standalone synchronous generator feeding power to a single induction machine which is made to run as induction generator at super-synchronous speed without any external electrical load connected to the machine busbars.
2
replies
Data Dictionary in Mark VIe
Posted by Siem on 16 August, 2015 - 12:37 am
Data dictionary in a Mark VIe control system
4
replies
Clutch Disengages too Early During Startup
Posted by voyager2_kbc on 15 August, 2015 - 11:21 pm
At approximately 43% of TNH the clutch disengages and the turbine trips
1
reply
Controlling Reactive Power of a Synchronous Generator Operating in Parallel with the Grid
Posted by frankcoutinho on 15 August, 2015 - 7:38 pm
Does changing the field current affects the real power being supplied by the generator?
4
replies
Step-Up Step-Down Transformer
Posted by nubstwo on 15 August, 2015 - 7:00 pm
Looking for correct transformer for 240v 50Hz 15W to 120v
Online Electrical or Power Short Courses
Posted by mrfaisalshaikh on 15 August, 2015 - 6:28 pm
Looking for some short certified courses online. Please suggest some.
Searching for the Dunclare, EIN dispenser protocols
Posted by SegFault on 15 August, 2015 - 5:03 pm
Searching Dunclare and EIN dispenser protocols
Engaging Turning Gear with Piggy Motor
Posted by raj_211 on 15 August, 2015 - 10:20 am
How is a turning gear engaged with piggy motor and main motor?
2
replies
Exhaust Spread High
Posted by ahmedaj on 15 August, 2015 - 8:21 am
When operating on gas fuel, exhaust spread increases and exceeds allowable limits.
1
reply
Operation of Generator in Parallel with Power Systems
Posted by frankcoutinho on 15 August, 2015 - 2:12 am
Using the field current in the generator to control the reactive power supplied by the generator to the system.
Hydorogen Cooler Water Supply
Posted by shekavi04 on 15 August, 2015 - 1:40 am
Water supply to generator hydrogen cooler shuts off when unit is de-synchronized.
1
reply
Frame 5 Aux. Lube Oil Pump Pressure Issue
Posted by FSE1988 on 14 August, 2015 - 7:51 pm
Frame 5 Aux. lube oil pump pressure not able to reach required delivery 8.5 and 1.72 header pressure.
6
replies
Controlling Variable Frequency Drive Speed
Posted by AhmadH on 14 August, 2015 - 2:55 pm
Controlling motor speed with VFD
2
replies
Wiring MODBUS to Raspberry Pi
Posted by Bjoern on 14 August, 2015 - 4:08 am
Need help wiring up Raspberry Pi to MODBUS device.
Toshiba G7 VFD Won't Light Up
Posted by reider on 13 August, 2015 - 5:10 pm
Toshiba G7 VFD display doesn't light up when 600V is turned on.
3
replies
Density Meter for Abrasive Slurry in 8" Pipe
Posted by Jim Burns on 13 August, 2015 - 12:43 pm
Looking for a density meter for an abrasive slurry in 8" pipe
3
replies
MARK-VI 125 VDC OVER VOLTAGE PROTECTION DEVICE
Posted by MAHENDRA DWIVEDI on 13 August, 2015 - 11:42 am
PROBLEM IN MARK-VI FOR OVER VOLTAGE
1
reply
MK V HMI - CIMBRIDGE and TCI
Posted by gpk on 13 August, 2015 - 2:54 am
What is the difference between CIMBRIDGE and TCI?
1
reply
Comm Issues with Remote Sites
Posted by willthomp_33 on 12 August, 2015 - 6:15 pm
Having comm failure with remote sites in SCADA network. Not a radio issue, but seems to generate at Ethernet switch.
Looking for Applicom KIT4000
Posted by Mano on 12 August, 2015 - 4:41 pm
Actively looking for Applicom KIT4000TD development toolkit