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Forum Archive
Load Shading System
Posted by BJM on 26 September, 2014 - 9:13 am
Looking for detail knowledge on the Load shading system
Governor Control in Speed Control Mode
Posted by Bhavin on 26 September, 2014 - 9:06 am
Islanding problem when grid trips. The case happens only 5 times out of 100, rest everything goes good.
Master Thesis Guidance With Protocols
Posted by Sandra Calvo on 26 September, 2014 - 3:56 am
Trying to decide which communication protocol is better for the API I am designing for my Master Thesis.
Contactless Card Reader and PLC
Posted by Amer on 26 September, 2014 - 3:30 am
How to connect contactless card reader to PLC?
How accurate is to calculate energy at 5 second rate
Posted by Vikrant Makwana on 25 September, 2014 - 5:39 am
Voltage, current and power factor (per phase), are acquired every 5 seconds. How accurately, can we calculate energy.
Why Consider Third Party Companies When Retrofitting/Supporting Your Gas Turbine Controls
Posted by Simon on 25 September, 2014 - 4:21 am
Why do people who believe that the OEM is the best alternative for off-warranty service & retrofit contracts why?
Controlling Different Cookers Using Same HMI
Posted by cmshelton on 24 September, 2014 - 8:22 pm
control different cookers on each others HMI
HMI with Generic Serial Port
Posted by Mark on 24 September, 2014 - 5:01 pm
Looking for an HMI with a generic serial port that can be controlled via scripting.
Stability of Generators in Isochronous Mode
Posted by Erwin on 24 September, 2014 - 1:00 pm
Why are two or more engines (gen sets) in Isochronous mode without load sharing make the system unstable?
ProSafe-RS, Is It Online Configurable?
Posted by Abdolazim Hasseli on 24 September, 2014 - 1:45 am
Notes when selecting ProSafe-RS as ESD system.
Mark-VI Communication with ABB DCS Over OPC
Posted by Ali on 24 September, 2014 - 1:21 am
OPC Communication between Mark-VI and ABB Freelance AC800F fails resulting in hanging of all ABB Operator Stations.
Upgrade Diesel Starter of GE Frame 5 Gas Turbine
Posted by Mohannad on 23 September, 2014 - 11:58 pm
upgarde our old deisel starter system of GE frame 5 Gas turbine
AB or Siemens Equivalent Safety Product as Sick's Flexi-Loop
Posted by Weida on 23 September, 2014 - 11:49 am
Is there any Allen Bradley or Siemens safety product that has similar modular capbilities as Sick's Flexi-Loop system?
Generator Voltage
Posted by TexasPower on 23 September, 2014 - 11:22 am
What determines how fast the voltage collapses if you remove the field current?
Encoder input module in PLC
Posted by sensorless on 23 September, 2014 - 4:58 am
For a 1700 ppr encoder input, is it necessary to use a High Speed Digital Input module in PLC?
Synchronizing Two ABB DCS Controllers
Posted by haroon0023 on 23 September, 2014 - 3:47 am
One type of status reading of ABB DCS says they are Synchronized, but other says they are 35% in Synchronized.
Difference Between Standard Combustor and DLN Combustion
Posted by Daneezy on 22 September, 2014 - 4:48 pm
Please what is the difference between a standard combustor and a DLN combustion system?
Gas Turbine Effect on Refrigeration Cycle
Posted by Sadiq on 22 September, 2014 - 2:27 pm
How does gas turbine efficiency effect the refrigeration cycle?
Thermocouple Temperature Drops Suddenly
Posted by Litto on 22 September, 2014 - 2:06 am
Unexplained temperature drop while process is running
Emergency Stop Wiring for Multiple Remote ESTOPs
Posted by Arosha on 21 September, 2014 - 9:55 am
What is the standard to connect multiple remote ESTOPs serially to Estop Monitor Relay
Sliding Mode Control - MATLAB
Posted by Andrew on 21 September, 2014 - 7:39 am
Need help simulating sliding mode controller using MATLAB/SIMULINK
What Is CEMS Used For?
Posted by Daneezy on 20 September, 2014 - 3:53 pm
What is CEMS used for and how does it operate in Power Generation gas turbines (GE Frame 9e)?
Enable Register Read in LabView
Posted by Ajay Waghmare on 20 September, 2014 - 3:44 am
When reading registers in MODBUS using LabViewm, how do I read data from registers at addresses 43XXX?
Non-Isolated and Isolated Modbus Slaves on Bus
Posted by Beavis Cleavis on 19 September, 2014 - 1:07 pm
Bus contains isolated and non-isolated slaves. Considerations when connecting everything together?
WDFP QLC Card Download
Posted by Kevin Williams on 18 September, 2014 - 12:27 pm
Problem downloading to QLC card with LC Loader
Mark V Diagnostic Alarms
Posted by Ivan on 18 September, 2014 - 11:18 am
Mark V TMR control panel, MS5001P, Diagnostic Alarms
Information regarding tag in Control logix over Ethernet/IP
Posted by Psahu on 18 September, 2014 - 10:49 am
Are controller tag details for control logix is available on ethernet/IP? Using 1756-EN2T module in controller chassis for communication.
Frame 9e Bearing Drawings
Posted by Mk6TA on 18 September, 2014 - 8:31 am
Bearing #1 drawings for a GE Frame 9e are missing.
PROSOFT MVI56-MNET Slave Response Time
Posted by Cris on 17 September, 2014 - 2:27 pm
PROSOFT MVI56-MNET communication response time and performance
Communication Between Control Logix and Centum VP Using Ethernet/IP
Posted by Psahu on 17 September, 2014 - 10:20 am
Communication not getting established between Yokogawa (ALE-111) and Control logix using Ethernet/IP.
Gas Turbine Rachet/Starting Problems
Posted by Alex on 17 September, 2014 - 3:07 am
After trip found SSS clutch calibrated bolts broken
Upgrading Yokogawa CS3000 R3 DCS
Posted by Khalid Ur Rehman on 16 September, 2014 - 12:36 pm
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?
TSX Premium PLC Problem
Posted by visitor on 16 September, 2014 - 7:29 am
Telemecanique TSX Premium PLC unstable operation
Emerson Delta V Training
Posted by timalg on 16 September, 2014 - 2:31 am
Looking for online training of Delta V Emerson
Yokogawa DCS Analog Module AAI143
Posted by Ariel on 15 September, 2014 - 2:45 pm
Difference between analog mA value and their correspondent raw value.
Proficy Machine Edition 8.0
Posted by Chris IWO on 14 September, 2014 - 10:56 pm
Proficy Machine Edtion 8.0 and 8.5
Power Meter Destroys Modbus RTU Bus Communication?
Posted by connected on 14 September, 2014 - 2:31 pm
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.
Removing Flow Divider Instrumentation on GE 7EA Turbine
Posted by Dan on 14 September, 2014 - 9:37 am
GE 7EA turbine, will removing flow divider instrumentation affect operation on Fuel Gas, Mark IV Startup Lockout?
Wafers Handling Robotics Arms
Posted by Pele1 on 14 September, 2014 - 8:44 am
Questions about robotics arms and the accuracy requirements in manufacturing
Communication between Triconex PLC and Matrikon OPC Server Using TCM Module
Posted by rbhadani on 14 September, 2014 - 5:39 am
Issue with Communication between Triconex PLC for SOE and Matrikon OPC server using TCM Module
Generator Maintenance
Posted by Fazle Hassan on 13 September, 2014 - 11:36 am
The generator tripped due to earth fault. We found some particles which defected the stator bar shorted to core. Now the surface of core is also damaged.
Power Plant Performance
Posted by Tracy on 13 September, 2014 - 8:01 am
What are the important process parameters for power plant performance?
Fluid Variable Speed Drive Hunting
Posted by Mohammad Kashif on 13 September, 2014 - 5:03 am
Hunting problem in scoop of Voith Geared Variable Speed Coupling R 18 K 500 M
TDC 3000 Remote Station Hanging
Posted by Jiftim on 12 September, 2014 - 2:15 pm
Remote Honeywell ES-T hangs with the RPS kit. Is it possible to extend the LCN using fiber without using obsolete Honeywell equipment?
Different Parameters on Siemens 7SJ6005 Relays
Posted by paru on 12 September, 2014 - 12:34 pm
Why are some of the parameters in new Siemens 7SJ6005 relay missing or different from relay model with the same part number?
Voltage Levels in DO Cards of PLC
Posted by Mihir Ramkrishna on 12 September, 2014 - 12:45 am
Which DO cards are better from the Reliability perspective - cards 24 VDC or cards that give 110 VAC?
Bently Nevada 1900/65A Equipment Monitor Input Problem
Posted by farid on 11 September, 2014 - 10:13 pm
Vendor converts input signal before 1900/65A and convert back to same signal at the output
Posted by jackson on 11 September, 2014 - 1:07 pm
Setting up a trends (graph) in ABB CP430T HMI
AVR Functioning and MVAR control
Posted by suryapadhu on 11 September, 2014 - 12:01 pm
AVR Functioning and MVAR control for Gas and Steam turbines
RSLinx issue in VMWare WIn 7 32 bit VM
Posted by Paul on 11 September, 2014 - 11:28 am
I can do a serial upload and download but I cannot go online with RSLogix 500 inside a VM running WIn 7 32 bit
Mark V Signal Scaling in HMI
Posted by VM on 11 September, 2014 - 8:25 am
Exciter signals gain in mark V
ABB Flowmeter -Flow Data Is Less
Posted by sandeep on 11 September, 2014 - 6:27 am
flow meter data is less compared to other flowmeters
Concept 2.6 Compatiblity Issue
Posted by Anurag Purohit on 11 September, 2014 - 2:55 am
Running windows 8.1 64bit OS and have a concept 2.6 compatibility issue.
Siemens S5 CPU 922 Run and Stop LED Do Not Turn ON
Posted by Syed Waqar Azeem on 11 September, 2014 - 1:05 am
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.
Gas Chromo readings
Posted by duks on 10 September, 2014 - 3:17 pm
Retention time of gas chromo
Level Transmitter on Condensate Drum
Posted by rosemount on 10 September, 2014 - 2:20 pm
Erratic reading for level transmitter on condensate drum
Power Factor on LV/HV Sides of a Transformer
Posted by CB on 10 September, 2014 - 10:46 am
how to analyse the power factor of a system across a transformer
When Will 88CR start?
Posted by Neo on 10 September, 2014 - 10:27 am
GT start up sequence, when will 88CR get started?
How To Read an Instrument Loop Diagram
Posted by Rama on 10 September, 2014 - 5:57 am
Understanding an instrument loop diagram
Downloading VPRO Software to MARK 6
Posted by Toumi on 10 September, 2014 - 5:17 am
MK6 VPRO Y configuration download
Generator Turbine Speed Control
Posted by Manoj Baviskar on 10 September, 2014 - 4:10 am
Effect of Reactive load throw off on Turbine (GTG) speed after Generator independent from Grid power.
PID Control In an Elevator
Posted by Blackbird307 on 10 September, 2014 - 12:53 am
How can a PID or PI be used in an application involving elevators with a pulley?
Using Programing Languages for Data Acquisition
Posted by Yayati Sule on 9 September, 2014 - 3:24 pm
Use of Programming languages in Automation.
Redundancy of Byte Count and Quantity
Posted by Jay on 9 September, 2014 - 4:49 am
Is there a need for both fields "Byte Count" _and_ "Quantity"?
Choke Valve Control
Posted by Sanjeev on 9 September, 2014 - 4:16 am
Choke valve control using 2 pulse outputs from DCS
Database Files To Backup for Future ABB Procontrol DCS Failure
Posted by wahidul islam on 8 September, 2014 - 3:26 pm
list of files to copy/back up for any failure future of ABB procontrol p14 DCS system
Binary Signal Sent From PLC Is Not Energizing Solenoid Valve
Posted by wahidul islam on 8 September, 2014 - 3:14 pm
PLC system binary signal is unlatch valve instead of holding
Temperature Transmitter
Posted by Kamaraj on 8 September, 2014 - 7:11 am
How can we test a Temperature Transmitter Accuracy?
GFD Chokes?
Posted by Dinesh on 8 September, 2014 - 1:16 am
What does GFD Chokes mean? Is it related to gas flow calculations?
PLC to Stepper Motor with Driver Combination Connectivity
Posted by Thota on 7 September, 2014 - 6:04 am
Motor driver converts the pulse/direction signals to the proper A and B phase signals for the motor, but does not reach maximum speed.
Calculating Motor Specifications To Run a Conveyor
Posted by Ashwin on 7 September, 2014 - 2:36 am
How to calculate specifications for motor to run conveyor system?
Configuring Simatic ET200s and IEC 60870-5-104
Posted by Ahmadreza Tarakameh on 6 September, 2014 - 11:52 pm
how to configure Simatic ET200s- IM151-8 for IEC-104 connection with High leit HMI
9FA Gas Turbine Unloading Rate
Posted by Stephen Roche on 6 September, 2014 - 3:17 pm
GE 9FA unloading rate in auto stop sequence for multishaft unit.
Generator Parallel with Grid
Posted by Rakesh Jaganiya on 5 September, 2014 - 11:10 pm
Unbalance current seems in incoming as well as outgoing feeders whenever we run our generator parallel with GRID.
Modbus RTU 2 slaves simulator
Posted by Vlad S. on 5 September, 2014 - 4:02 pm
How to simulate two Modbus RTU Slaves
2+1 CC both GTs tripped and Steam Turbine was still producing 30MW
Posted by vpsopm on 5 September, 2014 - 1:48 pm
2+1 CC GTs both tripped and Steam Turbine was still synchronised on grid producing 30 MW!
DCS analog input problem
Posted by mahmoud fawzy on 4 September, 2014 - 7:10 pm
DCS Analog input signals didn't work with ADAM card
MES only to connect DCS to ERP?
Posted by Jess B on 4 September, 2014 - 5:01 pm
1) How realistic is it to have a control recipe from ERP to DCS? 2) Is it worth doing an MES just for this?
Endress Hauser Gammapilot M FMG60 Pulse Rate
Posted by john on 4 September, 2014 - 3:51 pm
Background calibration average Pulse rate is 0 for Endress hauser Gammapiolt M FMG60 instrument for measuring level in Hutch.
Gap Voltage and Radial Vibration
Posted by RAJESH on 4 September, 2014 - 2:11 pm
If gap voltage in radial vibration is set at -11v dc, will it make any difference in measuring radial vibration ie. its dynamic value mm/s pp?
Need help with Swirl Chart for Siemens 501F
Posted by ncc on 4 September, 2014 - 8:00 am
We need references for determining the swirl for a 501F engine to match thermocouples to combustor basket.
Loading a BLDC Motor
Posted by Ansari on 4 September, 2014 - 3:41 am
Simplest way to load a BLDC motor
Earthing Mat Substation
Posted by jack on 3 September, 2014 - 10:12 pm
Depth of Earthing Mat
Using a Standpipe with DP Level Transmitter
Posted by TANWEER on 3 September, 2014 - 8:57 pm
Can we use a standpipe with a DP type level transmitter?
HMI screens design
Posted by Luca Gallina on 3 September, 2014 - 7:15 pm
HMI fields and screens design
Level Transmitter for Submersible Pump
Posted by Anil Bathra on 3 September, 2014 - 9:50 am
Which level transmitter will be the best choice for measuring the level of a well of 400 m depth?
Dixell XC645 MODBUS Register
Posted by Bare on 3 September, 2014 - 3:41 am
Looking for information about MODBUS to connect to the registers in a Dixell XC645CX regulator
Programing Kawasaki robots
Posted by Mads Kusk Hansen on 2 September, 2014 - 2:26 pm
Looking for information about the language that is used to program Kawasaki robot arms.
Generator Load Sharing Issue
Posted by RigMan on 2 September, 2014 - 1:41 pm
High amps on one generator
Gas Turbine Cannot Reach Minimum Operating Speed for Complete Sequence
Posted by saha on 2 September, 2014 - 5:46 am
Gas turbine HP shaft speed does not reach minimum operating speed
Initial Torque Required for Gas Turbine
Posted by Izhar on 2 September, 2014 - 5:21 am
How to calculate the initial torque required by gas turbine
Communication Between Emerson DeltaV DCS and Wonderware
Posted by hiren on 31 August, 2014 - 7:49 am
Communicating through FSGateway between Emerson DCS DeltaV and Wonderware System platform
Wet Leg Carried Over Problem in Differential Pressure Transmitters
Posted by Shaiq Bashir on 31 August, 2014 - 2:47 am
The seal which is filled in wetleg of DPT, is carried away with pipe fluid.
Sliding Mode Control
Posted by Andrew on 31 August, 2014 - 12:41 am
Help with Anti-swing Sliding Mode Controller for Gantry Crane
High School Math - How is this used in the real world?
Posted by RLovell on 29 August, 2014 - 1:08 pm
My high school students ask when/how/if abstract topics like polynomials, factoring, rational functions are ever actually used in the Real World. I don't know..maybe you do?
Siemens Statement Help
Posted by Wade on 29 August, 2014 - 8:54 am
Converting a Siemens S5 program to ladder and need help with a block.
Difference Between IP and MAC Addresses
Posted by RAJESH on 29 August, 2014 - 4:17 am
What is the difference between IP address and MAC address?
parallel operation of generator
Posted by Sagar on 28 August, 2014 - 11:48 am
We are having 18MW captive power plant to fulfill requirement of power and steam in company.
Getting a better understanding of GT control PART 3
Posted by Neo on 28 August, 2014 - 10:48 am
Getting a better understanding of GT control PART 3
Mark VIe Governor control
Posted by N.V.Q on 28 August, 2014 - 2:49 am
What are the basics of governor control?