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Forum Archive
OLTC oil filtration
Posted by thiagusriram on 29 January, 2015 - 8:58 pm
Filtering OLTC oil for reuse
Industrial Communication Training Tools
Posted by Ajayvignesh on 29 January, 2015 - 5:35 am
Looking for industrial communication training tools on various topics.
1
reply
Very Low Frequency Grid Oscillations
Posted by drkaos on 28 January, 2015 - 4:47 pm
Very low frequency 0.06Hz oscillations of grid frequency occurring in relatively weak system - not sure of exact mechanism
TwinCAT 3 Error When Switched to Run Mode.
Posted by IngSAgius89 on 28 January, 2015 - 9:36 am
TwinCAT 3 error when switched to Run Mode.
OPC Connectivity of Package Vendors with ICSS
Posted by harshmansingh on 28 January, 2015 - 3:20 am
Connecting 3rd party package (Integrated Control and Safety System) to DCS
3
replies
ST ACV Command and Feedback Difference
Posted by Wajid29 on 27 January, 2015 - 11:13 pm
ST ACV command and feedback difference is gradually increasing.
4
replies
PLC Direct PLC and Rosemount Transmitters Won't Work Together?
Posted by Mcgyver on 27 January, 2015 - 10:49 am
I have been told that a Rosemount 3051s smart transmitter with hart cannot work with the analog input card on a PLC direct 205 controller.
Control Moment Gyroscope Transfer Function
Posted by cyberlord64 on 27 January, 2015 - 10:20 am
Question about the methodology of determining the transfer function of a control moment gyroscope.
Writing a Driver for Modbus/TCP
Posted by xPCSIM on 27 January, 2015 - 4:52 am
How to write a driver in matlab for aModbusTCP connection between windows pc and an IPC using xPC
1
reply
Analog and Digital Signal Separation
Posted by dcsengineer on 27 January, 2015 - 3:12 am
Analog and digital field cable segregation in marshaling cabinet
Analog accumulator Mark-V
Posted by Piratacoamo on 26 January, 2015 - 6:34 pm
How to config an analog accumulator in Mark-V.
4
replies
OpenMODBUS and MODBUS TCP
Posted by xPCSIM on 26 January, 2015 - 7:27 am
Difference between openMODBUS and MODBUS TCP? Is it the same?
1
reply
MODBUS Newcomer Has Questions
Posted by xPCSIM on 26 January, 2015 - 7:08 am
New to MODBUS and have questions about function codes
1
reply
ID Fan Indicates Speed When It Is in Stop Condition
Posted by hanumanthsrinivas on 25 January, 2015 - 5:54 am
ID Fan is in Stop Condition but the DCS shows 700 RPMs
2
replies
State Space Representation Does Not Work with Superposition Theorem
Posted by mistermystere on 24 January, 2015 - 6:22 pm
I need to get the state space model of a MISO circuit. I got the total differential equation from the superposition theorem but its state space model does not work.
1
reply
Auto Re-Ignition in Premix Mode
Posted by abdi on 24 January, 2015 - 9:42 am
Auto Re-Ignition in primary when I try to go to Premix Mode
Example of Higher Order Control System
Posted by priteshshah on 24 January, 2015 - 8:09 am
Need Examples of Higher Order Control System
1
reply
Firing on Gas - Main Fuel Pump
Posted by kwaku on 24 January, 2015 - 4:11 am
When does the clutch of the main fuel pump disengage when firing on Gas? Does the shaft of the main fuel pump rotate when unit is selected on Gas fuel mode and on turning gear?
15
replies
Problems with Phase to Phase Heating Elements
Posted by runescape on 23 January, 2015 - 6:12 pm
Will this redesign have problems?
5
replies
Operating a Gas Turbine on FSNL
Posted by Adeel Imtiaz on 23 January, 2015 - 10:06 am
Running gas turbine on FSNL for a long period of time.
1
reply
Posible Damage from XLPE Cable Load
Posted by Rajendar1988 on 23 January, 2015 - 4:00 am
Effect or damage of XLPE Medium voltage and low voltage cable carrying load
Peristaltic Pump on Industrial Bus
Posted by wdolanaca on 22 January, 2015 - 8:28 pm
Controlling pump speed and receiving speed feedback from peristaltic pump on industrial bus
7
replies
Lossy NC Contact Blocks on Pushbuttons
Posted by runescape on 22 January, 2015 - 4:54 pm
Should I replace Estop buttons that are not reading 0 ohms Normally Closed?
3
replies
Selecting A Pressure Switch for Hazardous Environments
Posted by controlExpert51 on 22 January, 2015 - 12:16 pm
Need some help selecting the right pressure switch in an environment with H2S present.
2
replies
Pings Over MODBUS But There Is No Reply
Posted by samgb on 22 January, 2015 - 10:14 am
A PLC does not receive information from an equipment over Modbus TCP/IP protocol.
3
replies
Compressor Bleed Valve Failure: Causes and Recommendation
Posted by benjie on 22 January, 2015 - 2:35 am
My plant is facing regular problems with Compressor Bleed Valve of Hitachi H25 units. I have been asked to come up with solutions to this problem
1
reply
Piping Material Specification
Posted by sakthivenkatesh on 21 January, 2015 - 9:22 am
Looking for piping material specification information
2
replies
Valve Couplers FD0-VC-Ex4.FF
Posted by Stephen Haruna on 21 January, 2015 - 7:18 am
We intend to integrate an MOV (TEC2000) via DeltaV Explorer with a Foundation Fieldbus FF-H1 card and a Pepperl-fuchs Valve Coupler FD0-VC-Ex4.FF
8
replies
Generation Getting Down to Zero
Posted by ARK on 21 January, 2015 - 1:10 am
Generation getting down to zero from full load while in service without any external commands.
1
reply
Parallel Generator and Synchronization With Grid
Posted by jackdaniel on 20 January, 2015 - 10:17 pm
Lingering questions running through my head about parallel generator and synchronization with grid.
Master Degree in Automation
Posted by PeruvianAutomation on 20 January, 2015 - 6:40 pm
Looking for a program that offers a master's degree in Automation.
Optimal Control to Eeduce CO2 Emission
Posted by kevinraphael on 20 January, 2015 - 9:41 am
Looking for some guidance in designing an optimal control
I/O Mapping of Sub-Control System
Posted by amrit1391 on 20 January, 2015 - 6:27 am
What is I/O Mapping? Is it same as Interfacing Description of instrument?
1
reply
MODBUS Exception Responses
Posted by pm10 on 20 January, 2015 - 4:00 am
Question about modbus exception responses handling
1
reply
Spread and Delta
Posted by James on 20 January, 2015 - 3:10 am
What is Temperature Spread and Delta?
2
replies
Purchasing a New HART Communicator
Posted by atef123 on 20 January, 2015 - 2:58 am
Looking for advice on selecting a new HART Communicator for power plant.
8
replies
Limiting the Gas Turbine Load and Operating at Base Load
Posted by Murali on 19 January, 2015 - 5:01 am
Feasibility of operating the GT at lower load by limiting the baseload IGV opening setting.
3
replies
VCMI Card Diagnostic
Posted by solidus1975 on 17 January, 2015 - 5:20 am
VCMI card S rack diagnostic
1
reply
Restriction Orifice Thickness Calculation/Formula and Source Standard
Posted by Turik on 16 January, 2015 - 4:25 pm
Looking for "Flow Measurement Handbook" by Miller for formula to calculate restriction orifice Thickness .
1
reply
K Value in Flow Measurement DP type
Posted by hanumanthsrinivas on 16 January, 2015 - 9:09 am
In Flow transmitter Calculation Procedure How is Constant K Value Extracted?
3
replies
Eurotherm Recorder's Communication via MODBUS TCP
Posted by yannis on 16 January, 2015 - 6:33 am
Eurotherm recorders communication using MODBUS TCP has become erratic.
1
reply
Reading information from Honeywell SCADA into Yokogawa CS3000
Posted by SRINI on 16 January, 2015 - 6:07 am
Trying to read data from Honeywell PLC connected to SCADA into Yokogawa DCS.
1
reply
Sudden Variation in Value of Mass Flowmeter
Posted by SRINI on 16 January, 2015 - 5:55 am
Process value of Emerson mass flowmeter has suddenly increased. Flow is from 3100kg/hr to 3800 and density is double.
1
reply
Career Advice for Long Time Controls Engineer
Posted by Michael on 15 January, 2015 - 10:47 pm
I need some career advice.
Sizing and Selecting MV Electric Poles
Posted by Kataeb on 15 January, 2015 - 5:45 am
Software for MV electric poles sizing and selection
4
replies
Vibration : Erratic Value Causes
Posted by Sati on 14 January, 2015 - 7:58 pm
What is Most Probable Cause of Erratic Value on Gas Turbine Vibration
Re: High Leg on 3 Phase Power
Posted by Bob Peterson on 14 January, 2015 - 3:33 pm
2 legs of my 3 phase power are pulling much higher amps then my third leg, how can I bring legs 1 and 2 down?
2
replies
Control Valve Calibration
Posted by pd1986 on 14 January, 2015 - 2:53 am
Samson Control Valve 4763 calibration help
2
replies
High Leg on 3 Phase Power
Posted by Mike on 13 January, 2015 - 7:51 pm
2 legs of my 3 phase power are pulling much higher amps then my third leg, how can I bring legs 1 and 2 down?
Coriolis Mass Flowmeter Does Not Stop Counting.
Posted by harry7 on 13 January, 2015 - 3:14 pm
Promass 80 Endress + Hausser keeps measuring mass flow with closed valves.
2
replies
MATLAB and LabVIEW in Industrial Automation
Posted by Rushi Shroff on 13 January, 2015 - 1:05 pm
MATLAB and LabVIEW in modelling and simulation of Automation systems
Retrieving Word Address from MODBUS Register
Posted by donadoni on 12 January, 2015 - 11:18 pm
Retrieving word number from MODBUS registers when value is rotating between 5 registers.
Pneumatic Hammer Control Using Two Regulators
Posted by PLCguy22 on 12 January, 2015 - 11:10 pm
I am using the S71200 to control two pneumatic regulators. These regulators control air to a pneumatic hammer. I need help in controlling these regulators to generate a hammering effect.
Hitachi H-04 PC Boards
Posted by Blueline on 12 January, 2015 - 1:25 pm
Need LPT-040A counter card for Hitachi H-04M PLC
1
reply
ABB 800xa Programing Problems
Posted by mm_octupi on 12 January, 2015 - 2:59 am
After i add new hardware in control builder it disappears
6
replies
Frame 5 Gas leaktest.
Posted by Nigamhyd on 12 January, 2015 - 2:29 am
Why we don't have the gas leak test for the Frame5 GE machine?
2
replies
Drop Creation in Emerson DCS Server
Posted by Aritra on 12 January, 2015 - 1:06 am
Drop creation in Emerson Ovation Dcs.
Retrieving Historical Data from S600 Flow Computer Using MODBUS
Posted by Jorge_Rosado on 11 January, 2015 - 3:12 pm
How to retrieve historical data from S600 Flow Computer using MODBUS?
1
reply
Changing Motor Speed
Posted by DINESH on 11 January, 2015 - 3:01 am
comments on problem
Watlow MODBUS Mapping for Wonderware
Posted by Tim Yeates on 10 January, 2015 - 10:45 pm
How to connect Watlow RM to Wonderware using MODBUS
2
replies
Control.com Goes Mobile
Posted by KenCrater on 10 January, 2015 - 3:14 pm
Control.com Forum is now available formatted for mobile platforms.
2
replies
How to Format Correct MODBUS Address
Posted by hosein on 10 January, 2015 - 4:47 am
How to Enter the address in HEX for Delta PID temperature controller?
2
replies
Voltage Measurement in Very Noisy Environment
Posted by Roy Matson on 9 January, 2015 - 2:03 pm
I need to find a number of DC Voltage transducers for a very noisy environment.
1
reply
Beginner in Artificial Intelligence Techniques in Industrial Automation & Robotics
Posted by Rushi Shroff on 9 January, 2015 - 9:56 am
Sources for learning Artificial Intelligence in Industrial Automation & Robotics
7
replies
Stripping a HART signal
Posted by drphil69 on 8 January, 2015 - 2:51 pm
What is the easiest way to strip a HART signal?
MaxDNA calc block
Posted by souravbhelpser on 8 January, 2015 - 1:38 pm
CALC block in maxDNA
Twido and GSM Communication
Posted by vhaa on 8 January, 2015 - 9:33 am
Twito and text messages
Manual Rewiring Option in Siemens S5 PLC
Posted by rayanvd on 8 January, 2015 - 9:31 am
Is it possible to carry out the manual rewiring option in Siemens S5 PLC?
2
replies
Requirement of Separate Earthing System
Posted by was00266 on 8 January, 2015 - 3:19 am
Requirement of Separate earthing system for 50 and 60 Hz power systems.
Difference between Foundation Fieldbus and PROFIBUS PA Application Software
Posted by Sharad_Devre on 7 January, 2015 - 4:35 am
Can anybody help me understand what are the important differences between these Fieldbus Foundation and PROFIBUS PA protocols?
Charity Seeking Switch Gear Donations
Posted by xylstra on 6 January, 2015 - 10:26 pm
Water For All seeks donations of unwanted surplus/salvaged contactors and industrial switchgear.
Buzzer or Tower Light Using MODBUS
Posted by fdarus on 6 January, 2015 - 9:31 pm
Modbus for buzzer/light indication
6
replies
Reading a Thermocouple with a Partlow MIC 6000 Process Controller
Posted by rmac on 6 January, 2015 - 9:23 pm
Can't get a a Partlow MIC 6000 Process Controller to read a K-type thermocouple correctly.
4
replies
Adjusting the Voltage on Electric Socks
Posted by Krumb on 6 January, 2015 - 5:50 pm
Is there a way to use a regulator to adjust the voltage of electric socks?
1783-ETAP Module Functionality in Ring Network
Posted by psahu on 6 January, 2015 - 1:56 pm
Failure of Ring network created using 1783-ETAP in Rockwell PLC
Digital Fault Recorder Manufacturer
Posted by sobhi on 6 January, 2015 - 7:11 am
Looking for digital fault recorder manufacturer.
2
replies
Slow Communication to SCADA
Posted by tyrantb on 6 January, 2015 - 7:04 am
17 plc connected in DH and a Wonderware Intouch station computer.
5
replies
IGV Positions of W501D5
Posted by jolcan on 5 January, 2015 - 10:29 pm
Question about what are the IGV positions of GT W501D5, during the startup and shutdown.
3
replies
Gravity Flow Meters
Posted by jmiller8605 on 5 January, 2015 - 5:30 pm
Need options for variable level flow measurement for underground process water.
Wheel Chamber Pressure in Steam Turbine
Posted by steampower on 5 January, 2015 - 6:38 am
1st extraction steam pressure and wheel chamber pressure running high.
Protocol Use at Edwards Fire Alarm Module SIGA-CT1
Posted by LJZhang on 5 January, 2015 - 12:27 am
Connecting a Edward CIGA module to SCADA
1
reply
Excitation Closed
Posted by MJG2469 on 4 January, 2015 - 6:43 am
Damage from excitation closed in while on turning gear
1
reply
RTD Error
Posted by pjgigalo on 3 January, 2015 - 9:55 pm
RTD Error during process.
1
reply
Using Internal Model Control Strategy
Posted by fahadjumani on 3 January, 2015 - 6:20 pm
This query relates to a problem I am facing when designing an IMC based controller. I would really appreciate any help I can get.
BPT n EXH
Posted by control on 3 January, 2015 - 5:53 pm
Why Does BPT matches with Exhaust?
Inertia Constant for Turbine Shaft
Posted by abdi on 3 January, 2015 - 1:47 pm
how to calculate the inertia constant for shaft turbine?
7
replies
MODBUS Device Losing Connection with HMI
Posted by ledangthang on 2 January, 2015 - 11:07 pm
After 4 - 5 days MODBUS devices sometimes disconnect from HMI.
5
replies
Problems when Downloading Pcode on a New UCVE
Posted by DAMENE on 2 January, 2015 - 2:15 pm
Cannot install/download application code to memory to UCVE M01A
1
reply
Steam Turbine Exhaust Hood
Posted by raj_211 on 2 January, 2015 - 9:27 am
what is the function of turbine exhaust hood at last stage of turbine and what happens if its temperature raises up?
Prosafe RS Online Download Problem
Posted by ezattelli on 2 January, 2015 - 7:41 am
Yokogawa SCS ProSafe RS Error:0x2000070b
4
replies
Low Bus Voltage
Posted by job2004 on 2 January, 2015 - 7:23 am
Does an extremely high demand of power lower the bus voltage on a nationwide grid?
6
replies
Koyo DL06 MODBUS RTU comms
Posted by adrianp on 31 December, 2014 - 10:56 am
Koyo DL06 MODBUS RTU Master/Slave communications difficulties
2
replies
Fire Protection Control Module
Posted by icengineerpak on 31 December, 2014 - 9:23 am
I am currently commissioning Fire Fighting/Protection System for GE Gas Turbine. The fire Fighting Control Panel is Provided by Tyco. Controller module showing fault apparently not possible.
2
replies
Steam Turbine Throttle Valve
Posted by Favy on 31 December, 2014 - 2:31 am
Steam Turbine Inlet Valve moves smooth Offline but not the case Online...
3
replies
Re-ranging a Pressure Transmitter
Posted by amrit1391 on 31 December, 2014 - 1:40 am
Need to re-range a pressure transmitter from 0 - 60 mbar to -30 to 30 mbar.
3
replies
Insertion Length of RTD/TC
Posted by amrit on 30 December, 2014 - 7:05 am
How can I calculate the insertion length of an RTD/TC in a duct?
1
reply
Bently Nevada Vibration probes
Posted by cnpaghdar on 30 December, 2014 - 5:54 am
Replacement of Bently Nevada vibration probe model 86205-A02-B01 WITH EQUIVALENT ALTERNATE PROBE
5
replies
Ignition Transformer in GE Gas Turbine
Posted by saiful on 30 December, 2014 - 2:16 am
Ignition Transformer of GE Frame9E Getting burnt frequently.
1
reply
Next Steps for Robotics Controls Engineer
Posted by latofte on 29 December, 2014 - 5:14 pm
Looking for advice on how I should approach my next career step.
6
replies
ABB REF542 Plus TCP MODBUS
Posted by breezeZILLA on 29 December, 2014 - 8:43 am
Looking for software that can log files over MODBUS TCP protocol.