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Forum Archive
What does PCSTOTE stand for?
Posted by Arif on 29 June, 2016 - 1:33 pm
Want to know the meaning of term PCSTOTE as used in generator core temperature monitor.
120ac versus 24dc motor control
Posted by old _Guy on 29 June, 2016 - 8:49 am
Quick Survey of who's using 24 VDC for motor control.
Performance Controller
Posted by mandeepkumar on 29 June, 2016 - 7:05 am
Performance controller for centrifugal compressor either Woodward 505 or CCC series 3++?
HMI Errors
Posted by vinit317 on 29 June, 2016 - 6:36 am
"Unexpected system error # 75 occurred: Path/File access error"
Ethics/Rules When it Comes to Cycling Power to Safety Modules?
Posted by runescape on 28 June, 2016 - 6:43 pm
Users are cycling power to the entire machine, to reset a faulted safety module. Can I do anything about this?
Bently Nevada 3300 Radial Vibration Problem
Posted by Amateur on 28 June, 2016 - 5:44 pm
Radial vibration read exists although machine is tripped (stop)
Heavy Fuel Accumulator Pressure
Posted by Ahmad on 28 June, 2016 - 3:34 pm
How much the nitrogen pressure must be inside this accumulator?
Modicon Premium use EGX100 for read modbus units with READ_VAR
Posted by yahampath on 28 June, 2016 - 12:17 pm
What is the correct way of addressing with READ_VAR for TCP/IP
Adaptive PD algorithm
Posted by Jeibros on 28 June, 2016 - 9:06 am
I would like to know which is the best method to check the stability of a PD adaptive algorithm
Need to wire 4 heating coils
Posted by Tc29 on 28 June, 2016 - 7:59 am
I have a 3 wire 3 phase 240v... Need to wire 4 heating coils... Not sure how to proceed
How to Assign MODBUS ASCII Address ?
Posted by kingschu on 28 June, 2016 - 4:26 am
My current problem is i can't assign a device address into a chip. how should i assign the MODBUS ASCII frame into a chip for the gateway to recognize it?
GE Frame 9e Auto Shutdown Due to SRV
Posted by AHM on 27 June, 2016 - 10:34 pm
Our GE frame 9e gas turbine experienced auto shutdown from base load because unloading was not occuring at the time of sudden fall of gas pressure rather SRV opened 99 percent and took auto shutodwn
24vdc Control
Posted by Cdnrookie on 27 June, 2016 - 4:15 pm
Length of run
How to Recover the Password of Privilege 2 of Toolbox
Posted by DAMENE on 27 June, 2016 - 10:05 am
I need help about how to recover the toolbox password of privilege 2
Why is a Default 0 Switch Added to PLC Logic?
Posted by AKA_knowledge23 on 26 June, 2016 - 5:04 pm
I'm analyzing programming code for a client and I noticed a switch that basically prevents the PLC from writing an input to a variable. I'm not sure why the original programmer added it there. Details are below.
Mark VI SRV/GCV Pressure Transmitter Trouble
Posted by cheedee on 26 June, 2016 - 6:29 am
Issue with Mark VI SRV/GCV Pressure Transmitter
Posted by luizrod on 26 June, 2016 - 5:03 am
Configure IP address on Schneider TSX ETZ 410
Metal Bending Machine Feed Data Calculation and Dimension Calculations
Posted by AKA_knowledge23 on 26 June, 2016 - 1:49 am
Could you please help me understand why the Feed Data variable is being reset by the PLC and justify the machine data calculations and why they aren't being used by the machine? All background information is in the message below.
Control Valve Problem
Posted by sanjib_dibrugarh on 25 June, 2016 - 8:27 am
Control Valve Hunting Problem VHP to HP PRDS
EtherCAT Deficiency in Line Topology
Posted by iman102 on 25 June, 2016 - 8:26 am
Issue related to EtherCAT line topology configuration.When a device in the line is removed , behavior of other devices shifted one device a head.
Effect of reducing water injection on gas turbines
Posted by Dani_p on 25 June, 2016 - 1:28 am
effect of water injection on gas turbine efficiency
Shifting from MODBUS TCP to DNP IP
Posted by Dinesh Chauhan on 24 June, 2016 - 11:54 am
how can 32 bit analog input data be scanned using SCADABR DNP IP Protocol
Instrumentation and Control
Posted by OLASENI WAHAB on 24 June, 2016 - 7:19 am
want to know about valves and their usage.
Correct DP Transmitter Isolation Procedure
Posted by lonetraider on 24 June, 2016 - 3:44 am
What is the correct procedure for preparing a differential pressure transmitter for live calibration?
ModBus RTU wiring
Posted by medvid on 24 June, 2016 - 3:05 am
I'm looking on internet for wiring solution.
PLC and Microcontrollers
Posted by merete hirbaye on 23 June, 2016 - 11:33 am
Can PLCs be used with microcontrollers?
Assigning Tags to Configure Animation in FactoryTalk ME
Posted by YelenaP on 22 June, 2016 - 9:56 pm
How to assign a tag to a display name/number to configure animation (visibility) of the GoTo button?
HMI Graphics Survey
Posted by hmicons on 22 June, 2016 - 3:31 pm
We're crafting a premium graphics library specifically for HMI applications, and would appreciate this community's input.
Software for Managing Transmitter Calibrations
Posted by KMann on 22 June, 2016 - 9:05 am
I am looking for suggestions for a software solution that will help manage transmitters and their calibrations.
Ifix 5.8 Poll Data from MBE Driver Unable to Update Database
Posted by Warran_n on 22 June, 2016 - 7:38 am
Ifix 5.8 database cannot poll data from MBE driver that shares the same Modbus Ethernet data source
Update Item Attribute
Posted by kiran on 22 June, 2016 - 7:01 am
Dynamic update of OPC item attributes
Reading Data from OC4000 DCS for GE Turbine
Posted by CongNam on 21 June, 2016 - 10:21 pm
Can GE Mark UDH netwwork VI or GE Mark ARCNET network protocol read data from OC4000 using OPC?
Axial Position Sensor
Posted by niazbibiyana on 21 June, 2016 - 7:09 pm
Importance of axial position sensor
EX-2000 Interface with MARK-V
Posted by ELVIN APONTE on 21 June, 2016 - 1:05 pm
Where the signal L4ex_strt_ss is created in a Mark-v gas Turbine
PLC Totalizer Under Reading
Posted by mwelwak on 21 June, 2016 - 9:02 am
PLC not read values from weigh belt Ramsey integrator totalizator correctly
Panelview FATAL Alarm
Posted by Kohsa on 21 June, 2016 - 2:05 am
Alarm on Panelview causes HMI to shutdown
Frame-6 Fire and Gas Detection System Upgrade
Posted by hany5757 on 20 June, 2016 - 10:18 am
Seeking advice for Frame-6 fire&Gas detection system upgrade
Web .Net Application
Posted by shorman on 20 June, 2016 - 7:59 am
HMI - C# .NET web application
Most Important Protection for GT/ST
Posted by sujish18 on 20 June, 2016 - 3:29 am
Which protection is the most important for GT/ST?
House Load Operation for Black Start
Posted by KRManish on 19 June, 2016 - 9:59 am
Any first hand experience with house load operation for black start in case grid voltage and auxiliary power from grid is unavailable for startup?
GE Frame 9e Starting Air Booster Compressor Jam
Posted by mechnub on 19 June, 2016 - 9:29 am
Starting air booster compressor jams frequently after online water wash
Power Without Signal
Posted by amirabbas on 19 June, 2016 - 4:45 am
I need power supply But There is not any output signal
Control Logix Add-On's
Posted by Semilogical on 18 June, 2016 - 6:32 pm
How do you lock down a functioning Add-On you've created?
How to Decompile "ap1" Files in MARK V
Posted by Isulamu on 18 June, 2016 - 6:01 pm
Looking to decompiling 'ap1' files to have source '.src' files
Roxar Water Cut Meter
Posted by nelsonM on 18 June, 2016 - 1:29 pm
Water cut meter process value increases rapidly to abnormal value occasionally.
HMI Magelis Communication
Posted by nestbulala on 18 June, 2016 - 1:10 pm
Lost communication with Magelis Modicon Legacy HMI Model XBTF032310
Transformer Failure
Posted by Gotit on 17 June, 2016 - 7:04 pm
Want to understand why lightning took out distribution transformers
Configuring Controllogix MVI Module as Master
Posted by zapotek67 on 17 June, 2016 - 8:45 am
No communication between prosoft MVI module and an energy analyzer slave using Modbus.
Motor Unbalance Current
Posted by K. Yogesh on 17 June, 2016 - 7:08 am
Motor taking unbalance current with kick on the transformer
Selection of Air or H2 for Generator
Posted by Ayed on 16 June, 2016 - 6:10 pm
Comparing hydrogen cold and air cold generator.
PID adjustment
Posted by michaeli on 16 June, 2016 - 7:48 am
question on pid loop update time change for slow moving temperature loop and what is effect if any on output related to integral factor.
Live Address Adjustment for Coffee Roaster Using Modbus
Posted by jvm986 on 16 June, 2016 - 6:07 am
Take values from a Coffee Roaster that uses Modbus and set-up a server on the localhost which publishes those values to a different address in real time.
Resetting the Registers for Schneider Energy Analyzer PM5110
Posted by zapotek67 on 16 June, 2016 - 12:53 am
How to Reset the Registers on Schneider PM5110 energy analyzer
How to begin a web SCADA?
Posted by vaace on 16 June, 2016 - 12:12 am
Looking for information on using SCADA over the web
SVG Graphic
Posted by Smart_boy on 15 June, 2016 - 10:57 pm
I'm not good in drawing and have a trouble when drawing SVG graphic for my project.
Issue in Reading OPC Array from Raytek's OPC Server
Posted by AmolL on 15 June, 2016 - 7:56 pm
I am not able to read value of single element of OPC array data from OPC server.
Best PLC School in Toronto
Posted by Jengel on 15 June, 2016 - 3:09 pm
Which colleges in Toronto have the best PLC program (updated for 2016)?
Intermittent Temperature Transmitter Signal
Posted by hany5757 on 15 June, 2016 - 10:36 am
Intermittently, the O/P signal from temperature transmitter going to LRV for very short time of nearly 90 m Second and return normal by itself.
Alarms in Ovation DCS
Posted by Barawar on 15 June, 2016 - 3:57 am
Trying to clear false alarm indicators in Ovation DCS
E&H FRM51 Level Reading Error
Posted by sumguy on 14 June, 2016 - 11:20 am
The radar is reading correctly except for the when the mixer is on and the level is below the propellers, when this happens the signal reads full scale.
DWATT Transducer Trouble
Posted by RameezAbrar10 on 14 June, 2016 - 9:23 am
Gas turbine Load shedding - Megawatt transducer failure
USB Interfacing in VB 6.0
Posted by mallinexsys on 13 June, 2016 - 5:21 am
Can I receive data using custom USB device in visual basic 6.0?
Batch Reactor Control: Cascade + Split Range
Posted by controlcat on 13 June, 2016 - 1:01 am
Is split range control possible to be combined with a cascade
How to Factory Reset MarkVie UCSA Controller
Posted by Haroon on 12 June, 2016 - 8:10 pm
We have problem with MARKVIe UCSA controller installed in simplex control panel.
Reading a Register from Schneider Energy Analyzer
Posted by zapotek67 on 10 June, 2016 - 7:27 pm
We cannot read float data with RIN block using Foxboro DCS for Modbus and Schneider's pm5110 analyzer
DeltaV Time Delay
Posted by jwillmayo on 10 June, 2016 - 5:36 pm
I need a way to delay the output of a process variable by a set time continuously.
Wonderware Siemens S7 Communications Issues
Posted by Hemimud on 10 June, 2016 - 4:05 pm
Communication errors between Wonderware and Siemens's PLC/s
Siemens Hardware for Tinplate Scroll Sheeting Line
Posted by msml on 10 June, 2016 - 9:59 am
Configuring Siemens Hardware for Tinplate Scroll Sheeting line
Density Measurement of Sludge Inline
Posted by Maj on 10 June, 2016 - 6:34 am
Concentration /density of sludge measurement in pipe line
RTDs and TCs Connection Head material Selection
Posted by hany5757 on 10 June, 2016 - 6:20 am
RTDs and Thermocouples Connection Head material Selection
Citect v7.40 SP1 - PM710 meter - FloatMode problem
Posted by agoslinski on 10 June, 2016 - 4:05 am
I have a problem with reading values from energy meter PM710 (Citect - Modnet - PM710)
Allen Bradley Factory Talk HMI
Posted by Hawkes on 9 June, 2016 - 10:14 pm
Allen Bradley Factory Talk HMI Question
Rockwell FactoryTalk View ME Error
Posted by Chris_IWO on 9 June, 2016 - 7:51 pm
Cannot Reset/Acknowledged Alarms on Rockwell Automation FactoryTalk View Machine Edition Station 5.00.00 (CPR 9)
Cimplicity Versions
Posted by tech_guy on 9 June, 2016 - 11:07 am
Cimplicity is not licensed to run multiprocessor computer
DCS Cycle Time
Posted by AmarKadam on 9 June, 2016 - 12:09 am
How much Cycle Time should we keep in DCS?
Why and When We Need Myers Hubs?
Posted by hany5757 on 8 June, 2016 - 7:16 pm
In Instrumentation Junction Boxes in our plant, I noticed that cables are entered in the Junction boxes by cable glands through Myers Hubs.
Difference between Mark-V and Mark-VIe
Posted by hany5757 on 8 June, 2016 - 7:00 pm
I was working before with Mark-V and now transfered to a plant having Mark-VIe control system for frame 6 GE GT.How protection is done in Mark-VIe?
Regarding Lube oil pump
Posted by rajkumarkrishna on 8 June, 2016 - 11:34 am
Compressor failure due to lube oil pressure problem
EX2000: IOS Drop Number Set
Posted by B. STGO. on 8 June, 2016 - 10:51 am
How to change the drop(address) number after changing the IOS Main Control Card in the EX2000?
Parallel Grid and Self Generation System
Posted by TMAT on 8 June, 2016 - 10:27 am
how can we make our electric generator's power be used by the customer main BUS first
Boiler Feed Pump Water Pressure
Posted by rautpsrme on 8 June, 2016 - 6:29 am
Boiler feed water pump pressure related problem
Communicating with Citect and Twido using Modbus RTU
Posted by kishore on 8 June, 2016 - 5:52 am
Looking for documentation about communicating with Twido PLC with Citect-scada using Modbus-RTU
Lightning Strikes Effects on Grounded DC Supply
Posted by aminsameipoor on 7 June, 2016 - 1:19 am
Is there any experience with effecting lightning strikes on dc grounded power supply?
Modbus Role Auto
Posted by Andrés Arango M on 7 June, 2016 - 12:13 am
Looking for sources about Modbus Role Auto
HMI Modbus Master-Slave
Posted by kud3r on 6 June, 2016 - 9:00 am
HMI Modbus Master-Slave RS485 communication
High Enclosure Temperature of MS 5001 Gas turbine
Posted by Azee on 6 June, 2016 - 6:21 am
Facing High Enclosure temperatures of Frame 5 Gas turbine
High Wheelspace Temperature
Posted by dontknowman on 6 June, 2016 - 12:54 am
High wheelspace temperature after HGPI
Two Phase vs. Three Phase Application
Posted by R. Button on 5 June, 2016 - 3:00 pm
Powering an inline tankless heater with 240V when it is rated for 277V
CENTUMVP Graphics Builder Problem
Posted by Latsany on 5 June, 2016 - 12:03 am
Cannot open properties to modify in CENTUM VP Graphics Builder
Boiler Mud Drum Heating Coil Control
Posted by Amusmani on 4 June, 2016 - 9:52 pm
Best control strategy for boiler mud drum heating coil
Gas Turbine Corrected Output Less
Posted by suryapower on 4 June, 2016 - 2:05 pm
We are experiencing less gas turbine corrected output compared to last year baseload test results
Conductive Grease
Posted by accurrent on 4 June, 2016 - 9:07 am
Who manufacturers conductive grease?
Posted by Kashir Saeed on 3 June, 2016 - 5:10 pm
Need advice for MODBUS plus to get data in from of MODBUS TCP
IGV Opening at Base Load.
Posted by Amr1589 on 2 June, 2016 - 5:27 am
What can cause IGV to decrease opening while base load operation?.
Accesing the Modbus Device from Internet without VPN Connection
Posted by Heru Iqbal on 1 June, 2016 - 1:51 pm
Software for accessing a Modbus device on a local network without a VPN Server.
EN 13894 DC Question
Posted by Tom Walker on 1 June, 2016 - 10:37 am
I have come to a situation where the values for the system that I have do not fall into the sections listed in Annex K of 13849, where does this leave me?
Current and Voltage Measurement Using the Same Phase
Posted by lakmalp on 1 June, 2016 - 8:27 am
Is it wrong to use the same phase to measure current and voltage (CT, PT) in an grid synchronization application?
Downloading to R, S, and T Processors on MARK VI
Posted by Maatallah_3107 on 1 June, 2016 - 5:25 am
How to perform runtime download to R, S, and T Processors?
Why We Use Solenoid Operated Valve in Control Valve
Posted by hanumanthsrinivas on 31 May, 2016 - 2:25 pm
What is the Purpose of Using SOV in Control Valves.
OpenPLC - a fully open source controller
Posted by thiagoralves on 31 May, 2016 - 2:22 pm
An open source platform for PLC research. Industrial use at your own risk