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3
replies
Redundant ControlLogix PLC and a Third Party
Posted by E. van Putten on 17 September, 2015 - 5:56 am
What is the generally accepted hardware setup to exchange data between a redundant set of A-B ControlLogix PLC's and a third party?
6
replies
Signal Segregation
Posted by MaxL19 on 17 September, 2015 - 5:26 am
Segregating AI and AO signals.
Shunt Zeener Diode Isolators on a Floated Control System
Posted by FrankKant on 16 September, 2015 - 3:36 pm
Will installing an intrinsic barrier for an RTD of the zener (shunt) diode type require loosing your floated power supply?
1
reply
UNIX Inneficiency
Posted by saywhat on 16 September, 2015 - 2:56 pm
Booting up my UNIX System; the screen is frozen.
6
replies
Step7 Programming Advice
Posted by OutRuN on 16 September, 2015 - 2:48 pm
Beginner needs assistance with step7 programming
3
replies
Zero and Even Order Harmonics
Posted by Yudie Soeryadharma on 16 September, 2015 - 11:25 am
Please help me understand the zero and even order harmonics
1
reply
Total Organic Carbon in Steam
Posted by abdi on 16 September, 2015 - 10:08 am
what is relationship between total organic carbon and fouling factor in steam?
5
replies
Ex'd' Certified Transmitter in Ex'i' loop
Posted by sachinrk on 16 September, 2015 - 7:15 am
What should be the loop electrical certification when an Ex'd' Certified transmitter is connected to an intrinsically safe loop/barrier of PLC/DCS?
L & T LT VFD Drive
Posted by Vaiju2003 on 15 September, 2015 - 11:38 pm
Looking for others experiences with Yaskawa L&T LT Drives
17
replies
Controlling the Speed of Hydro Turbine
Posted by lakmalp on 15 September, 2015 - 3:57 pm
Hydro Turbine frequency matching with the grid
1
reply
Steam Turbine Driving Compressor Load Rejection Problem
Posted by hany5757 on 15 September, 2015 - 11:03 am
We have a steam turbine driving a nitrogen compressor. The problem is that the turbine is tripping on overspeed protection upon load rejection.
1
reply
Wonderware Historian Problem
Posted by mark_seed on 15 September, 2015 - 8:02 am
Unable to save data for imported tags in WonderWare Historian
1
reply
Orifice Plate Head loss
Posted by Forat on 15 September, 2015 - 3:14 am
Definition of orifice plate head loss
2
replies
Siemens PLC Software
Posted by Adam Wilson on 15 September, 2015 - 2:49 am
Purchasing PLC software for Siemens PLCs from China
1
reply
Arcom Gateway Manual
Posted by mjenko on 14 September, 2015 - 6:40 pm
Need user manual for Arcom Director Series IV-P Gateway
2
replies
Flame Detector
Posted by dontknowman on 14 September, 2015 - 2:32 pm
Do flame detectors work differently in MARK 1-4 than they work in MARK 5?
PGT25+ FAT Topics
Posted by wanousali on 14 September, 2015 - 7:14 am
What special topics should I pay attention to at gas turbine FAT in GE workshop?
MODBUS in ABB BRC300
Posted by bhimani11 on 14 September, 2015 - 5:26 am
Problems with MODBUS communication with BRC300.
2
replies
Drawing Numbers
Posted by FrankKant on 13 September, 2015 - 8:04 pm
Drawing numbers change in same sheet X of Y. Standard for this?
1
reply
Flow Control Strategy for CFG Pumps in Parallel
Posted by controlcat on 13 September, 2015 - 8:50 am
What is a typical control strategy for flow Control using CFG Pumps in Parallel?
1
reply
Lube oil Tank GE MS5001
Posted by ibrahimdowa on 13 September, 2015 - 8:16 am
We found out that liquid fuel is leaking inside of our GE frame 5 lube oil tank.
3
replies
Connect a Sensor to Laptop
Posted by virturalone on 12 September, 2015 - 3:05 pm
Connecting a sensor to a laptop via USB port
7
replies
Log and Display Historical Trend on a PC
Posted by apps_man on 11 September, 2015 - 5:40 pm
Using MODBUS TCP to log data to a PC and display trend when there are large time periods between valid data.
1
reply
Issues with Differential Pressure Measurement
Posted by Saunaguru on 10 September, 2015 - 10:51 pm
Having some difficulties with a differential pressure transmitter.
1
reply
Modbus TCP/IP client for IPv6
Posted by James Clark on 10 September, 2015 - 3:49 pm
Looking for a IPv6 Modbus TCP/IP Client
1
reply
ControlLogix and Profibus DP Pepperl+Fusch with Prosoft
Posted by Javi_01 on 10 September, 2015 - 3:18 pm
Integrating a redundant application with ControlLogix and Profibus DP Pepperl+Fusch with Prosoft MVI56-PDPMV1
2
replies
Wireless Activated Relay
Posted by PaulKraemer1 on 10 September, 2015 - 8:37 am
Looking for a relay that I can activate through a wireless network
Using Function code 17 For Auto Detection of Slave Address
Posted by sreenivas on 10 September, 2015 - 7:54 am
How does the Function code 17 detect slave address?
3
replies
Selection Criteria of PLC When Installing WHR
Posted by Kingrosekhan123 on 10 September, 2015 - 3:05 am
i want to know the general rule for the selection of PLC.
Injection Molding Spare Separation
Posted by manikandan selvam on 10 September, 2015 - 2:20 am
Idea for the project for the separation of injection molded spare parts by difference in their shapes. so we need an idea about which type of sensor will be suitable.
13
replies
PLC Watchdog - ControlLogix
Posted by FrankKant on 9 September, 2015 - 1:59 pm
For an industrial gas turbine application, should you require an independent watchdog for a ControlLogix PLC?
3
replies
Ovation 3.31 with ELC Configuration
Posted by GTT on 9 September, 2015 - 1:43 pm
Using Ovation 3.31 with ELC Configuration to communicate with third party device.
1
reply
Earth Fault in One Generator out of Five Generators Running in Parallel
Posted by vivek vadukar on 9 September, 2015 - 1:13 pm
Suddenly one generator other than isochronous mode generator tripped in rotor earth fault
Bently Nevada 3500-Utilities-Software Switches
Posted by controlman15 on 9 September, 2015 - 3:04 am
Bently Nevada 3500 Rack configuration software utilities software switched changes
Masoneilan 12810 Pneumatic Level Controller
Posted by newneager on 8 September, 2015 - 1:23 pm
I need help troubleshooting an old pneumatic level controller. I am currently able to only get about 14psi output and I'm looking for a way to increase the output to 20psi.
3
replies
Feeder Tripping
Posted by Eddie on 8 September, 2015 - 10:59 am
Why would a feeder trip within tolerance?
2
replies
Mark VI Processor Failure to Boot
Posted by TeeKay30 on 8 September, 2015 - 9:11 am
The S core processor fails to reach control due to Application loader error UCVE diag alarm and eventually failed to boot after a very sluggish and eventually aborted firmware download to VCMI.
4
replies
Guided Wave Radar Level Transmitter
Posted by salem on 8 September, 2015 - 7:24 am
Is there a smart guided wave radar level transmitter like Yokogawa smart differential level transmitter?
3
replies
Auto Slave Address Detection in MODBUS by Master
Posted by sreenivas on 8 September, 2015 - 6:46 am
Need suggestion for Auto slave Address Detection on MODBUS by Master on both TCP and RTU.
5
replies
Adding New PID Block to Mark V HMI
Posted by amine_nacer on 8 September, 2015 - 3:55 am
Adding a new PID block and having difficulties on how to add Inputs to this block
Super-critical Combined Cycle Power Plant
Posted by GMC1984 on 8 September, 2015 - 1:55 am
Will we ever see a super-critical combined cycle power plant?
7
replies
Antisurge Controller
Posted by nkd on 7 September, 2015 - 11:31 pm
Is a dedicated control system required for anti-surge control of compressor?
7
replies
Frame 9 Unstable in Premixed Mode
Posted by Gleb on 7 September, 2015 - 7:50 am
Frame 9E engine with DLN1, fuel type gas only, has an issue with unstable work on mid load.
2
replies
HART Multiplexer Issue
Posted by junah on 7 September, 2015 - 4:52 am
Trouble getting HART data from P&F HART Mux
Calibration of Coal Fow Integrator
Posted by SRPO9002 on 6 September, 2015 - 8:19 pm
How to calibrate a coal flow integrator with help of external resistor
Frequent Pressure Fluctuation in Proportional Relief Valve
Posted by SRPO9002 on 6 September, 2015 - 8:12 pm
In coal pulveriser hydraulic loading system, Pressure is getting fluctuated frequently because of proportional relief valve malfunction
1
reply
Turbine RPM Measurements
Posted by hanumanthsrinivas on 6 September, 2015 - 7:22 am
Difference in number of teeth and turbine RPM measurements.
Pump Vibration Sensor Issues
Posted by hanumanthsrinivas on 6 September, 2015 - 6:37 am
Problems with CW Pump. Suddenly Pump DE X Sensor Showing Bad Value in DCS.
Serial Communication Between Siemens PLC and Arduino
Posted by Star12 on 5 September, 2015 - 6:33 pm
Finding a way to filter out serial data received from Arduino into the PLC.
4
replies
Single Phase to 3 Phase
Posted by eddie michael on 5 September, 2015 - 6:04 pm
Problems getting one phase of 3 phase from 180 volts to 120 volts
1
reply
VFDs Applications Article
Posted by alejandrom on 5 September, 2015 - 2:48 pm
Looking for an article published in Power Magazine in 1987
3
replies
Thermocouple Jointing/Extension
Posted by icengineerpak on 5 September, 2015 - 8:53 am
How to extend thermocouple wires?
64 Bit RTU with Redundant Protocol IEC 104 and IEC 101
Posted by ivantom on 5 September, 2015 - 1:57 am
64 Bit RTU supported with IEC 104 & IEC 101. Connected to 2 master control centres with redundant link in 104 or 101
1
reply
De-Ethanizer Tower Differential Pressure
Posted by MOHAMEDBAKR on 4 September, 2015 - 10:11 am
Negative of Yokogawa transmitter PDIT on De-ethanizer Tower
3
replies
Store and Forward SCADA
Posted by Jeremy Pollard on 4 September, 2015 - 9:55 am
Have a site a mile away and looking collect data realtime using local server based software.
MBE MODBUS Ethernet Driver
Posted by beetho on 4 September, 2015 - 7:20 am
Looking for MBE driver to communicate with an HMI software IFIX version 5.00
File Handling with MODBUS-OSCAT Library on Codesys Using Structure Text
Posted by moumie on 4 September, 2015 - 6:18 am
New to MODBUS, looking for information/help with File handling using MODBUS-OSCAT Library.
3
replies
Citect SCADA Setup
Posted by kk on 3 September, 2015 - 10:23 pm
how to set up communication b/w citect SCADA 7.1 and vijeo citect 7.2
3
replies
DeviceNet vs Ethernet
Posted by RonWensley on 3 September, 2015 - 10:43 am
Replacing an MCC do I use DeviceNet or Ethernet?
1
reply
GRID Disturbance
Posted by Sikandar7641 on 3 September, 2015 - 9:04 am
Grid disturbance causing breaker openings
7
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?
1
reply
PI OPC to EXAOPC
Posted by abdulshor on 2 September, 2015 - 6:43 am
Connecting to EXAOPC from PI OPC Client tool
2
replies
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
1
reply
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)
4
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?
4
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?
16
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?
4
replies
Voltage Pull Down
Posted by Stewart on 1 September, 2015 - 4:00 am
Voltage being pulled down in IO panels.
3
replies
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.
2
replies
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.
9
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
1
reply
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
10
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.
4
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:
2
replies
Unable to Backup RSView
Posted by angeloalves23 on 25 August, 2015 - 8:16 pm
HMIBackup not backing up RSView program.
7
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.