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Forum Archive
AGC Fail in Power Plant
Posted by loghman on 20 April, 2019 - 2:52 am
When the unit is under control of AGC, which conditions causes that the unit gets out from Remote control?
GE Fanuc 90-70 Backup
Posted by kld_rm on 19 April, 2019 - 10:19 am
Backup of PLC GEFanuc 90-70 on laptop.
3
replies
Measuring Steam Quality
Posted by ryanb on 18 April, 2019 - 4:00 pm
Need a good way to measure the quality (dryness fraction) of saturated steam going into a hospital sterilizer.
2
replies
Reversing an Allen Bradley Servo
Posted by dgauthier54 on 17 April, 2019 - 9:56 pm
Reverse a servo, Allen-Bradley 2094-AM02 module, on an existing, proven machine.
3
replies
RO Calculation for Flow Measurement
Posted by sfatehi on 17 April, 2019 - 7:00 am
RO calculation for variable area flowmeter before it.
Submersible Hydrostatic Pressure Level Sensor: the best solution of static pressure level measurement
Posted by Holykell on 17 April, 2019 - 3:16 am
Submersible hydrostatic pressure level transducer uses a pressure level sensor of 316L stainless steel housing and MEAS TE diffusion silicon core as the signal measuring component
5
replies
EGT 20 Deg C Lower Than Expected
Posted by wanfauzan on 17 April, 2019 - 2:51 am
During cogen plant commissioning, EGT during full load is 20 deg C lower than expected, which results in less steam in HRSG simple recovery. Can the EGT be increased will IGV setting?
Communication Fault in Bailey DCS800xA System
Posted by jabbi_king on 17 April, 2019 - 2:12 am
Communication fault in NCOMMERR on IMMFP02 in DCS800xA System after upgrade from INFI 90
1
reply
Engine Exhaust Temperature Sensor (Thermocouple)
Posted by rakibcnrd on 17 April, 2019 - 12:43 am
Engine head thermocouple installation process.
13
replies
GE frame V Gas Turbine Starting Device Trip
Posted by SANJAY MALLIK on 15 April, 2019 - 3:40 pm
GE frame V gas turbine trip due to starting device trip at 2200-2300 rpm during startup where as starting diesel speed is 1900 rpm.it happens 4 to 5 times during startup.
Installing VNET Card Driver for CENTUM CS 3000
Posted by ashistc on 14 April, 2019 - 10:20 am
Problem in installing VNET card driver in PC. Three cards appearing instead of two.
9
replies
Recording Data to Excel for Every Hour For More Points
Posted by Mohammed on 14 April, 2019 - 6:02 am
How to record reading from HMI at every one hour in excel sheet?
3
replies
IGV Control On
Posted by Chromatin on 14 April, 2019 - 2:02 am
Why does inlet air temperature increase? Is it because IGV control is on?
3
replies
Grounding an Equipment Enclosure
Posted by magic_din on 13 April, 2019 - 5:04 am
Grounding an equipment enclosure to an available TGB
An SSR to Control AC Loadbank at 1kHz PWM
Posted by ianfinlay on 12 April, 2019 - 3:35 am
Looking for an AC SSR (Dc Controled) switching up to 200A
4
replies
GE Frame7AE Exciter Control
Posted by jeff33003300 on 11 April, 2019 - 8:29 pm
Question around generator voltage control.
1
reply
Enthalpy Drop Across Steam Condenser
Posted by SSAAFF on 11 April, 2019 - 5:42 pm
What is the best enthalpy drop across the air cooled condenser for steam turbine? What the effect of ambient temperature of the air cooled condenser?
Measuring Petrol Level in Oil Tank
Posted by Holykell on 11 April, 2019 - 3:24 am
The only answer for measuring petrol level in fuel tank.
Machine Automation and Integration standards
Posted by sanchit9590 on 10 April, 2019 - 12:31 pm
Looking for line integration and machine programming standards, similar to PackML is packaging lines and can be extended to other machines
1
reply
Honeywell Experion CM Slow Scheduling
Posted by Big_Dale on 9 April, 2019 - 7:39 pm
Honeywell Experion R4.1 - want to schedule a PID block to execute once an hour.
3
replies
Bailey INFI90 DCS
Posted by matifou on 9 April, 2019 - 5:51 am
BAILEY INFI90 DCS obsolescence
Nexgen 2000 PLC
Posted by Akin Segun Sunday on 8 April, 2019 - 3:44 pm
Communication and I/O logic of Nexgen 2000 plc
2
replies
Implementation of Modbus RTU Protocol in AVR
Posted by Rudrendu Mahindar on 8 April, 2019 - 9:50 am
Implementing Modbus RTU protocol in atmega32
2
replies
GE Frame 5 Ratchet Issue
Posted by mousaab on 7 April, 2019 - 9:44 am
Turbine ratchet not running
1
reply
Temperature High Spread
Posted by metti on 7 April, 2019 - 2:15 am
High spread temperature trip in HITACHI H-25 gas turbine at startup
10
replies
GE Frame-9E Standard Combustion Machine
Posted by rokan_123 on 6 April, 2019 - 1:04 pm
GE-9E Load behaviour in Temperature control mode ON & OFF are different.
1
reply
Bulk Modbus Points Display
Posted by chaudhurysid on 6 April, 2019 - 5:38 am
Displaying 25K Modbus points on a computer without PLC.
1
reply
L64D_P/N - Intermittent Voter Mismatch
Posted by Zachary747 on 5 April, 2019 - 11:11 am
Intermittent L64D_N and L64D_P voter mismatch alarms on Mark V
Instrumentation Training
Posted by kody916 on 4 April, 2019 - 8:18 pm
Website for online instrumentation training
GE D11, LP Inlet Pressure Control SP?
Posted by Kurths on 4 April, 2019 - 7:56 pm
We have two GE7FA.05 CT's on a GE D11 steamer. I'm trying to nail down exactly what the LP inlet pressure adjustment is used for.
8
replies
Mark V Start Motor and Shaft Turning
Posted by sommy_35 on 4 April, 2019 - 2:26 am
Start motor does not take over shaft turning
Blind Spot of Non-contact Ultrasonic Level Sensing
Posted by Holykell on 3 April, 2019 - 4:31 am
Regarding the dead zone that occurs in the use of the non-contact ultrasonic level sensing.
3
replies
Gas Turbine Trip Due to Damper Open Signal Loose
Posted by mrabby on 2 April, 2019 - 12:28 am
HRSG at the rear of the diverter damper fallen.
1
reply
ToolboxST
Posted by learning_elec on 1 April, 2019 - 4:26 pm
I need to find a way of using toolboxST without a server
12
replies
Simulator for GE Mark VI
Posted by engsofian on 1 April, 2019 - 2:15 pm
What is the procedure for the setup of GE Mark VI simulation?
1
reply
Field Instrument or Design for Pull Cord in Belt Bonveyor
Posted by boosterhidrogen on 1 April, 2019 - 4:48 am
Better design/sensor for pull cord switch in belt conveyor
4
replies
Easy PC code for Logging Modbus TCP
Posted by 111sas111 on 1 April, 2019 - 1:23 am
Looking for source code for a Windows environment to use with Modbus so I can build a basic historian.
5
replies
Power Plant Generator Control
Posted by tommy_yotsakorn on 1 April, 2019 - 12:05 am
Power plant generator control mode between MVAR, voltage control and PF
1
reply
Startup/Shutdown/Trip Effect on Turbine Lifetime
Posted by nldgseeker on 31 March, 2019 - 2:50 am
Could you please advise what the effect of unit shut down, trip, start up on turbine life time?
7
replies
MarkVIe: When put in ISO generator purging is shown
Posted by Esoteric_Stone on 30 March, 2019 - 6:26 pm
The turbine was running on the droop mode. When its mode was changed in to ISO, Generator purging was shown in HMI (status_fld).
6
replies
Synchronization in MarkV and MarkVIe
Posted by Esoteric_Stone on 30 March, 2019 - 5:54 pm
I want to discuss synchronization in detail including the logic of relays K25, K25P and K25X.
5
replies
Removing Measurement Orifice Plates to Stop Restrictions in Pipeline
Posted by Winwinston on 29 March, 2019 - 12:14 pm
Question About Removing Measurement Orifice Plates to Stop Restrictions in Pipeline
Process Historian: PI Vs PHD
Posted by selva on 29 March, 2019 - 4:50 am
Does anyone have a latest comparison of Process Historian systems, PI versus PHD? List of Advantages/Challenges.
4
replies
Mark VIe: Excessive Volt/Hertz Trip
Posted by Esoteric_Stone on 28 March, 2019 - 7:23 pm
Within five seconds after synchronization, GT is tripping on EXCESSIVE VOLT PER HERTZ trip.
1
reply
The Efficiency of Ultrasonic Level Sensor
Posted by Holykell on 28 March, 2019 - 5:34 am
The efficiency of ultrasonic level sensor can be improved by monitoring the fluctuation of liquid level in pump station
3
replies
High Exhaust Temperature Spread
Posted by Madupat on 28 March, 2019 - 5:01 am
Our GT, frame 6, Mark 6E, trips on high temperature spread when on gas firing mode.
9
replies
Mark V to MarkVIe Migration
Posted by Mousaab on 28 March, 2019 - 2:25 am
Mark V Life extension
1
reply
Frame 6 DLN Loading Issue
Posted by minhao_lee on 27 March, 2019 - 10:27 pm
Gas Turbine BASELOAD/PARTLOAD Issue
Inspection of 11KV Generator and Its BL Exciter
Posted by champak on 27 March, 2019 - 1:20 pm
How to inspect LSTK power generation (with HRSG boiler)
1
reply
Approved Diesel Fuel Shut-off Valve
Posted by vsegvic on 27 March, 2019 - 12:49 pm
Looking for producers of type approved fuel shut-off valves.
Modbus. dll File for VB or Excel
Posted by Adolfo Leon Hernandez Abadia on 27 March, 2019 - 11:42 am
Modbus. dll Is required for VB or Excel
Modbus TCP Reading 32 bit Registers Problem
Posted by Ricardo78 on 27 March, 2019 - 10:08 am
Trying to read the input registers through Modbus but have problems with 32bit registers.
6
replies
When Do I Need Y-Pattern Needle Valve?
Posted by Tharwat on 27 March, 2019 - 7:52 am
I want to purchase needle valves as a replacement for built-in needle valves (Y Pattern).
1
reply
Supply of Reactive Power through Generator/Exciter
Posted by MGP on 27 March, 2019 - 5:09 am
We are planning to provide ancillary service to the grid by means of reactive power support by raising or lowering the excitation of our turbo generator.
1
reply
HAZID Study
Posted by kld_rm on 26 March, 2019 - 4:51 pm
HAZID study requirements
1
reply
TNR Reverse Power Not Detected
Posted by sugarboi on 26 March, 2019 - 9:33 am
cause of TNR reverse power Not Detected
1
reply
COe Emissions
Posted by shouvonik22 on 26 March, 2019 - 7:48 am
Questions about Servomex 2700 combustion gas analyzer for measuring oxygen percent and COe(ppm) emissions
4
replies
VAR Control on Siemens SGT5-4000F
Posted by tonytomson on 25 March, 2019 - 8:05 am
Help needed with VAR control as part of reactive capability curve verification
Controlling Two Micromaster 440 Drives
Posted by Crowfoot on 25 March, 2019 - 6:41 am
Looking for a method to control two AC drives which must work together driving a semi coupled load.
HART Communication
Posted by problem on 24 March, 2019 - 8:24 pm
HART communication between field transmitter and MTL5544D
2
replies
MarkVIe Deadbus Breaker Closure Simulation
Posted by Esoteric_Stone on 24 March, 2019 - 3:48 pm
How to simulate the DEAD BUS BREAKER closure while the GT is off but the BUS is LIVE.
5
replies
GE Speed Protection
Posted by jalestine on 24 March, 2019 - 11:19 am
What is meant by protective and control speed?
3
replies
Confusion over SRV Checkout on Frame 6B with a Flenco DLN1 Gas Module
Posted by Stumped on 23 March, 2019 - 5:41 pm
Frame 6B (as only) combustion turbine DLN1 module has a fisher V300 ball valve as an SRV. Confused on discrepancies between original control document and original commissioning book.
6
replies
Wheelspace Thermocouple Exact Location
Posted by Techieraa on 22 March, 2019 - 8:41 am
Want to gain a clear understanding of wheelspace thermocouples
2
replies
Fluid Batching Application
Posted by Tofunmi on 22 March, 2019 - 4:27 am
Water batching process control solution which will have a batch counter (E+H RA33), Control Valve, and E+H Flowmeter (Picomag)
1
reply
Frame-3 GE GT EOP Motor Characteristic Curves
Posted by vikas on 22 March, 2019 - 2:59 am
Looking for Frame-3 GE make GT EOP motor characteristics, efficiency load curves, etc.
Modbus RTU Help
Posted by JD_mod on 21 March, 2019 - 8:09 pm
Need modbus help. Issues with read functions sending to master.
4
replies
Serial Communication with Gardner Denver ES+ Controller
Posted by gallo27 on 21 March, 2019 - 5:41 pm
Having trouble trying to communicate to Gardner Denver ES+ Controller via RS232 serial connection. Trying to send ASCII requests to controller but I don't get anything back.
Learning Supcon and Other DCSs
Posted by santosh sarma on 21 March, 2019 - 1:46 pm
Portability of things learned from using Supcon to other DCS
1
reply
Flue-gas Desulfurization (FGD) Logic Insterlocks Design
Posted by ArenasM on 21 March, 2019 - 3:39 am
Are there any regulations (EU or others) that define the limitation and regulation of the startup of a Boiler if its FGD is out of service?
3
replies
Foundation Fieldbus
Posted by autogeek on 20 March, 2019 - 6:46 pm
Difference between FF, HART, 4-20ma communication. Does a FF transmitter require 4-20ma signal?
2
replies
Modbus Communication with Danfoss VLT FC360
Posted by MONAK on 20 March, 2019 - 6:04 am
Cannot fetch data on serial communication using Modbus with Danfoss VLT FC360.
Activate Tables Menu in Instrument index of INtools
Posted by dovestar on 20 March, 2019 - 3:07 am
Activating the tables menu in SmartPlant Instrumentation
SFC CPU Card Replacement Fault
Posted by ansmehmood on 19 March, 2019 - 11:17 am
Converteam SFC installed at our site and now have problems after replacing a problem CPU card.
1
reply
VFD on 300 KW , 440 Volts Compressor
Posted by mushahid on 19 March, 2019 - 12:46 am
Replacing Reduced voltage starter to VFD on 300KW Motor drive compressor
8
replies
Polling Slaves from 2 Masters
Posted by Sean Campbell on 18 March, 2019 - 8:20 am
Can devices configured as Modbus Slaves send data to 2 separate Masters?
High fuel flow
Posted by psajay1992 on 18 March, 2019 - 3:04 am
Working on simulation for 6FA machine. Need help to debug.
1
reply
Modbus RTU to Bluetooth
Posted by chromeaccent on 15 March, 2019 - 11:50 am
modbus RTU to bluetooth converter
3
replies
PLC Programing Beginner
Posted by kwameplc on 15 March, 2019 - 11:04 am
Looking for advice on the purchase of a training kit to learn PLC programming at home
4
replies
A New Modbus-TCP Server Simulator
Posted by Talat Dogan on 15 March, 2019 - 9:47 am
New Modbus-TCP Server Simulator freeware is ready for download.
Coal Power Plant Coordinated Unit Control
Posted by Micik1 on 15 March, 2019 - 9:11 am
Basic types of unit control in a coal fired power plant
Model-free Controller Simulation
Posted by David on 15 March, 2019 - 8:57 am
I am designing model-free controllers and I would like to simulate its performances.
3
replies
Installing a Flowmeter to Calculate Gas Quantity and Display Information in Control Room
Posted by abdouzita103 on 15 March, 2019 - 3:58 am
Installing a new flowmeter to calculate gas quantity passing through a pipe and displays in control room
5
replies
Should I use a Regenerative Drive?
Posted by imran0413 on 15 March, 2019 - 1:51 am
Load is driving motor so motor is actually working as generator. Is there any advantage of installing Regenerative drive?
6
replies
Mark 5 Processor Showing Faults
Posted by Hamed87 on 14 March, 2019 - 12:57 pm
Mark 5 processor showing faults and alarms after restart
Online Calculator for Time-Optimal Jerk-Limited Trajectories
Posted by cheeco on 14 March, 2019 - 6:14 am
Calculate and download time-optimal trajectories with jerk limitation online
Loadcell with S7 1200 and HMI
Posted by burakuzun on 13 March, 2019 - 4:03 pm
weight control with using Siemens S7 1200 and HMI screen
Induced Over Voltage Test of Transformer
Posted by shaheed on 13 March, 2019 - 8:09 am
What will be the normal current during during the test of induced over voltage of a 200KVA 11KV/400V 3 phase transformer?
14
replies
PG6111FA M-VIe control IGV hunting in Preselect Load
Posted by STLTLS on 13 March, 2019 - 7:28 am
IGV hunting during only on preselect load operation.
12
replies
Mark6e (MK5 migration) Exhaust Thermocouples Read Low
Posted by borrellimd on 12 March, 2019 - 2:52 pm
Mark6e (MK5 migration) exhaust thermocouples all read ~20DegF low
2
replies
SRV and GCV Calibration in Cranke Mode
Posted by Mcc on 12 March, 2019 - 1:16 pm
How I can calibrate the SRV&GCV with crank mode in MARK 6?
2
replies
How can I get a PCB for prototype?
Posted by Jimmy Saldivias on 12 March, 2019 - 12:30 pm
Need to manufacture 10 boards according to a Texas Instruments design TIDA-01575 to Wirelessly Monitor Vibration on Motors but cannot get manufacturers for it.
1
reply
Integrating a non-Modbus system with a Modbus BMS
Posted by EYAD F on 12 March, 2019 - 10:37 am
Ethernet TCP/IP with a BMS system that supports MODBUS.
4
replies
Commuincating with Laser Caliper (Laser Online LST-25)
Posted by Leafy on 11 March, 2019 - 2:36 pm
Anyone have experience communicating with a Chinese brand Laser Online LX-25 laser caliper via MODBUS RTU protocol?
1
reply
PLC for Hamilton Visiwater DO Probe
Posted by dpm321 on 11 March, 2019 - 12:52 pm
Connecting a Hamilton Visiwater DO probe to a suitable PLC
8
replies
Selecting a PC for SCADA Systems
Posted by alisnelectric on 10 March, 2019 - 1:37 pm
Selecting a PC for installing SCADA.
PLC Control System Design Documentation
Posted by alisnelectric on 10 March, 2019 - 1:29 pm
plc control system documentation
Changing Modbus MBAP Header
Posted by Oemer on 9 March, 2019 - 4:16 pm
Is there a way to define the MBAP header (ADU) themselves? I want to send: 40 02 AA BB always as Header.
Programing Combox-s Module for Modbus Networking in Atlas Copco Elektronikon MkIV Compressor
Posted by hph1988 on 9 March, 2019 - 12:33 pm
How can I program combox-s module using FDP for Modbus networking in Atlas Copco's Elektronikon MkIV compressor?
2
replies
Bubbler Level Measurement in Closed Vessel Vacuum
Posted by Jangir on 8 March, 2019 - 10:48 am
How use a dpt as a bubbler level transmitter in vacuum vessel 70 kpa-a.