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Friday, April 17, 2015
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5
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MODBUS Device Gateway: Master or Slave?
Posted by Christof DB on 11 February, 2015 - 11:45 am
We are asked to add a modbus gateway feature to a dedicated device gateway we have. What would a MODBUS user/engineer expect?
Set Point Handling
Posted by nareshkattait on 11 February, 2015 - 7:52 am
Safety analogue signal set point handling.
3
replies
Starting Means for Gas Turbine
Posted by muddasir on 10 February, 2015 - 3:38 pm
Looking for information about starting means of gas turbine.
2
replies
Temperature Sensor for BUSBAR
Posted by PLC on 10 February, 2015 - 1:51 pm
Advice for the perfect and cost effective sensor for BUSBAR.
Simple Ladder Logic Question
Posted by meisfun on 10 February, 2015 - 11:33 am
Programming a conveyor motor. I seem to be stumped at the moment.
4
replies
OPC Tunneling Inter vendors
Posted by japz87 on 10 February, 2015 - 11:28 am
Is it possible to communicate MatrikonOPC Tunneler with Kepware OPC Connectivity Suite?
6
replies
Extended Gas Turbine Turning Gear Operation
Posted by Imran Wazeer on 10 February, 2015 - 11:19 am
For how much extended time period Frame 9E Gas Turbine can be put on turning gear?
1
reply
MKVIe Software Block Question
Posted by brownsugar on 10 February, 2015 - 9:17 am
I'm trying to get some information on a few internal calculations in a control block. The system is a GE MKVIe running ToolboxST used to control a GE7Fa turbine.
3
replies
Looking for SIL3 Design Information
Posted by tharun_rj on 10 February, 2015 - 8:12 am
Looking for SIL3 Design details. Any leads?
3
replies
CAP Certified Automation Professional Exam
Posted by yasser on 10 February, 2015 - 2:35 am
Does anyone tried to pass the exam of CAP (certified automation professional) recently?
7
replies
Frame 9E 88BT Logic
Posted by Haris on 10 February, 2015 - 1:48 am
88BT1-2 Logic Confusion
Tag Update in ABB Power Generation Portal
Posted by sharmanl2004 on 9 February, 2015 - 11:41 pm
I would like to know that how to update\load tags in ABB power generation portal.
5
replies
Field Communicator 475 Meter Verification of Micromotion Flowmeter
Posted by Shams_ul_Islam on 9 February, 2015 - 2:48 pm
Problem in meter verification of micromotion flowmeter through online HART
3
replies
Installation of Honeywell Experion PKS R310.3 on latest version of Dell Servers
Posted by inc on 9 February, 2015 - 1:07 pm
Is installation of Experion PKS R310.3 possible on latest version of Dell Servers?
2
replies
VAR limitation in EX2000?
Posted by MARKlaneV on 9 February, 2015 - 9:13 am
Are UEL and OEL bypassed when regulator control is in Auto with generator mode in VAR control? Are they bypassed when regulator is in Manual?
2
replies
Micrologix1100 To Citecscada6.10
Posted by Chris IWO on 9 February, 2015 - 12:59 am
Communication Between Schneider Electrics CitecSCADA6.10 Service Pack A and AB Micrologix1100 via EtherNET/IP
2
replies
Main Steam Flow Measurement Using Turbine 1st Stage Pressure Measurement
Posted by SRPO9002 on 8 February, 2015 - 1:42 pm
How the main steam flow can be calculated using the steam turbine 1st stage pressure measurement? What is the relation between them?
Calibrating Cryogenic Level Transmitters
Posted by Pratikchatterjee on 6 February, 2015 - 12:44 pm
Problem with calibrating a level transmitter for a cryogenic tank
GSM Based E-notice Board
Posted by dri06_d on 6 February, 2015 - 8:01 am
Looking for help with some problems related to my microcontroller project.
1
reply
ABB DMTME Reading KWH Value
Posted by Muditha1 on 6 February, 2015 - 4:36 am
Problems reading KWH from ABB DMTME meter using MODBUS.
1
reply
GMI Active 80
Posted by Lee on 6 February, 2015 - 4:33 am
Looking for is anyone who has a MODBUS template for GMI Active 80 gas detection unit or can give me any help.
5
replies
Diesel Generator Reverse Power Problem
Posted by jason005 on 5 February, 2015 - 10:37 pm
Can anyone help me to fix reverse power problem on a diesel generator unit?
4
replies
Extended Premix Mode
Posted by mohamed nawar on 5 February, 2015 - 6:47 pm
Why does unit transfer to extended permix mode when gas temp reach 17.5C?
Creating a Push button in Experion PKS for Fast Rise Selected Value
Posted by mostafa_qasemi on 5 February, 2015 - 10:46 am
Honeywell experion pks pushbutton in faceplate for fast rise selected value
8
replies
VC3 Not Following Reference.
Posted by muz_sidhu on 5 February, 2015 - 6:43 am
VC3 not following reference problem when temperature was low and working normal when temperature increases.
9
replies
Loadsharing / Reactive Power Problem
Posted by Tharris on 4 February, 2015 - 9:05 pm
I have 3 2282 kVA Generators all with a rated power factor of 0.8 all connected to the same load however Generator 3 has a 30% higher reactive power. Any ideas why?
5
replies
IS Smoke Detector without IS Barrier
Posted by Etherhat on 4 February, 2015 - 3:32 pm
Intrinsically safe (IS) smoke detectors installed in a non hazardous area without an IS barrier.
1
reply
Inverted Pendulum Control
Posted by danielmoulin on 4 February, 2015 - 2:42 pm
Choosing method of controlling inverted pendulum using PLC.
1
reply
Changing DNP3 protocol to IEC60870-5-101
Posted by mekkov on 4 February, 2015 - 11:45 am
Looking for hardware to change DNP3 protocol to IEC60870-5-101
Circulation Ratio
Posted by AAK on 4 February, 2015 - 10:43 am
Why Circulation Ratio Low in for HP drum.
2
replies
Fixing Passive Isolator for 4-20mA Transmitter
Posted by krish2252 on 4 February, 2015 - 8:42 am
New 4-20mA sensor to fix in existing active circuit with a passive isolator.
8
replies
Droop control
Posted by ZestE0Man on 4 February, 2015 - 8:19 am
Stability issues in power plant
2
replies
Function Blocks in FOUNDATION Fieldbus
Posted by Darker on 4 February, 2015 - 7:25 am
Model Block in Foundation Fieldbus
2
replies
AB Micrologix 1100 to Citec6.10 Communication
Posted by iwoiwo on 4 February, 2015 - 1:25 am
How do I setup Allen Bradley Micrologix 1100 Controller using EtherNET/IP to communicate with Citec Scada 6.10?
SCADA Solution for Power Distribution Sector
Posted by asela115 on 3 February, 2015 - 9:55 pm
proper SCADA solution for power distribution sector
10
replies
Calibration screen for GCV and SRV
Posted by voyager2_kbc on 3 February, 2015 - 4:35 pm
Problem with calibration screen for GCV, SRV and IGVs
CAN error
Posted by bigdaddy95 on 3 February, 2015 - 4:00 pm
Parker motion drive TWIN2 drive " CAN error".
OPC and Open Protocol
Posted by Stu_Cyrus on 3 February, 2015 - 6:13 am
Can anyone tell me the difference between OPC and open protocol?
DC-DC Converter Cum Isolator
Posted by kamaraj on 3 February, 2015 - 12:33 am
Equivalent for NMS1215 DC-DC Converter?
Higher Order System
Posted by priteshshah on 2 February, 2015 - 11:21 pm
Looking for additional information about Higher Order Systems
Telemecanique PLC Battery Dead
Posted by carartu on 2 February, 2015 - 2:17 pm
Cannot reboot Telemecanique tsx p67425 PLC
1
reply
Telegyr 805 Manuals
Posted by Sedighzadeh on 2 February, 2015 - 12:51 pm
Looking for Telegyr 805 Manuals.
1
reply
Slip Resistance Calculation
Posted by Shaheed on 2 February, 2015 - 8:45 am
I am in need of calculation to add slip resistance in series of a 900KW 11KV slip ring motor its rotor volts are 1550V 360A.
3
replies
Gas turbine with DLN combustion system at part load
Posted by Marcin2706 on 1 February, 2015 - 12:11 pm
The behaviour of gas turbine at part load when DLN combustion system is employed. How IGV are modulated?
6
replies
Vibration Monitoring System Replacement
Posted by chiru on 1 February, 2015 - 3:47 am
Looking for experiences about replacing vibration system for steam turbine.
Redundant Communication for RTU
Posted by rsaha on 31 January, 2015 - 9:47 pm
Best method to design redundant communication for RTU
2
replies
Electronic Earth and Power Earth
Posted by Sunil Chavan on 31 January, 2015 - 9:27 pm
Resistance between electronic and power earth
3
replies
ALSTOM GT13E2 Alarm
Posted by valar on 31 January, 2015 - 8:57 pm
Can anyone help find cause of alarm "P IN WTR DIS SYS PLS"?
3
replies
HART Multidrop to 4-20mA
Posted by NorthSeaMonkey on 31 January, 2015 - 8:10 am
HART multi drop to multiple 4-20mA loops
2
replies
Process Control Networks
Posted by DanD on 30 January, 2015 - 3:32 pm
Help needed with a question on process control networks for a interview.
5
replies
Problems with Analog Card on Cegelec ALSPA 80/35 PLC and P1200 SCADA
Posted by oneye14 on 30 January, 2015 - 7:26 am
Cegelec ALSPA 80/35 PLC analogue card inputs have regular spikes appearing on the graphic trend.
1
reply
Exd Approved Flow-Controller
Posted by Christoffer on 30 January, 2015 - 6:21 am
Looking for an ExD approved gas flow and pressure controller. The component(s) need to be compact to fit in a box with the following dimensions: Height: 550mm by With: 300mm by Thickness: 150mm.
2
replies
Steam Escaping from Passing Valves
Posted by sriram sandeep on 30 January, 2015 - 3:53 am
How to avoid steam escaping from passing valves
2
replies
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
2
replies
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
5
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.
1
reply
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.
2
replies
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
2
replies
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?
7
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
2
replies
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
2
replies
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.
16
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.
2
replies
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?