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Fire and Gas Control Panel Configuration
Posted by fatimafert1 on 13 November, 2015 - 11:43 am
Promel FGP 04 communication problem on GE gas Tubine
2
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What Will Happen if Delta Connected Motor in STAR
Posted by Gmahesh on 13 November, 2015 - 2:04 am
Motor winding heated due to wrong connection?
Voltage Control Generator
Posted by Taha Omar on 12 November, 2015 - 3:30 pm
how can a voltage control generator supply real and reactive power?
5
replies
MODBUS TCP over IPSec VPN
Posted by Eradz on 11 November, 2015 - 6:45 pm
Trying to get MODBUS TCP over IPsec VPN
4
replies
3051 Capsule Transmitter Out of Range
Posted by junah on 11 November, 2015 - 2:06 am
3051 capillary transmitter out of range problem
3
replies
1771-IL Manual
Posted by Bruce427 on 10 November, 2015 - 8:34 pm
Need manual for an old 1771-IL isolated input module. SERIES A - Rev B
5
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Experion PKS Display Blackout/Inverted Video
Posted by mcwv on 10 November, 2015 - 7:08 pm
After DCS conversion from Foxboro I/A to Honeywell Experion PKS R430, analog values will flash black for one refresh rate periodically.
7
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Emergency Lube Oil Pump for ALSTOM 13E2
Posted by sudamadhav on 10 November, 2015 - 6:41 pm
Emergency lube oil pump for 13E2 is designed on what basis? For 13E2 its a twin speed; why twin speed?
Time Synchronisation in GE 369 and 469
Posted by Noor on 10 November, 2015 - 1:54 pm
I want to time synchronize GE 369 and 469 relays
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QA Testing... Beyond Point 2 Point
Posted by Gage_Stryker on 9 November, 2015 - 5:43 pm
When point to point fails to pick up wiring issues...
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Internal Failure Message in Atlas Copco Air Regulator
Posted by govoni2015 on 9 November, 2015 - 3:27 pm
Atlas Copco Air Regulator Electronikon shutdown and is flashing error
Sewer Backup Problem
Posted by Bernie V on 9 November, 2015 - 2:51 pm
Looking for equipment to monitor building sewer line flow so we can be alerted to an imminent backup.
2
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MODBUS on Siemens S71200 PLC
Posted by urimadar on 8 November, 2015 - 10:30 am
Writing to Siemens S71200 PLC using TCP/IP MODBUS
3
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Air Coming from AA Booster Compressor Body Vents
Posted by barindra75 on 8 November, 2015 - 6:40 am
Mild hot air is coming out from AA booster compressor body vent holes when booster compressor is not in operation.
Steam Turbine Load Reduction
Posted by Sandeep on 8 November, 2015 - 5:07 am
Steam turbine load reduction
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Mark VIe - Live and Initial Value
Posted by Sardar99 on 8 November, 2015 - 3:08 am
Can somebody explain me what are the live value and Initial value?
SIMOCODE with TIA Portal
Posted by Jamal Hamdan on 7 November, 2015 - 5:43 pm
SIMOCODE with TIA Portal
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MW Hunting in GT
Posted by vinayak_paranjape on 7 November, 2015 - 1:31 pm
MW hunting in Gas Turbine
SAPCV That Will Reduce and Control from 8 bar to 0.1 bar
Posted by VJ on 7 November, 2015 - 7:52 am
Looking for a self-regulating valve that can reduce and control from 8 bar to 0.1 bar output
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Excitation Control of Hydrogenerator
Posted by manojbaral on 7 November, 2015 - 4:01 am
Field voltage of brushless excitation system for a hydro-generator of 22 MVA capacity
13
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Slow Level PID Loop
Posted by Ormo on 6 November, 2015 - 7:50 pm
Slow level PID loop with telemetry delay
2
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Safety Barriers and Isolators
Posted by AllenBradley on 6 November, 2015 - 10:46 am
How does process transmitters function when it is connected to a barrier or isolator?
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AB OB16E Electronic Fuse Tripping
Posted by mjtracy on 6 November, 2015 - 10:43 am
I am getting a Fuse LED lit up on my 1756-OB16E output module when energizing multiple output channels.
Isentropic Efficiency Calculations
Posted by AdamIR on 6 November, 2015 - 3:55 am
Calculating isentropic efficiency for compressors, not sure about absolute pressure
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Inter Domain Communication Issue in Yokogawa DCS after Upgrade
Posted by Kaleemullah Memon on 5 November, 2015 - 10:41 pm
Inter Domain Communication Issue in Yokogawa DCS after Upgrade from CS3000 to VP R5.04
3
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Safety PLCs
Posted by BillyMac on 5 November, 2015 - 9:09 pm
Learning about safety PLCs
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Migration from SLC500 to 5000
Posted by BillyMac on 5 November, 2015 - 9:02 pm
Time to migrate to 5000 platform
3
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Yokogawa Centum VP 4.03 in Windows 7 environment
Posted by Bolek on 5 November, 2015 - 3:14 pm
I need to install Centum VP 4.03 on HIS in Windows 7 environment.
5
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Recommended Low-Cost Modbus RTU Mixed-Signal Remote I/O Module
Posted by beck92 on 5 November, 2015 - 12:35 pm
Seeking recommendations for a simple, low-cost Modbus remote I/O module w/ analog I/O, digital I/O, 2A+ relays
2
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Provox Algorithm
Posted by betress on 5 November, 2015 - 12:00 pm
Has anyone converted Series PID Algorithms to Velocity PID Algorithms?
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Can No Longer Verify MODBUS String from Slave Device
Posted by SMF on 5 November, 2015 - 8:27 am
Modscan software quit working suddenly, and I cannot reestablish communication with slaves.
Communication between SI580E and PLC Modicon 340
Posted by hassansaper on 5 November, 2015 - 5:58 am
How to read data via RS 485 from Load Cell indicator SI 580E in Unity Pro
SIL Calculation for HIPPS Loop
Posted by SpecialProjects on 4 November, 2015 - 11:13 pm
When to use Risk Reduction Factor (RRF) in SIL calculations
23
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GCV Fluctuations
Posted by bkarim55 on 4 November, 2015 - 2:20 pm
Could the GCV Instability to be the reason that the GT goes to Exhaust temperature Control?
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Interfacing Printer with a Light Signaling Incoming FAX
Posted by Lance on 4 November, 2015 - 1:13 pm
Can a printer/fax machine act as an input for a lamp to signify incoming faxes?
Small Address Model MODBUS
Posted by Marcelo Mancilla on 4 November, 2015 - 10:40 am
How to read MODBUS registers with small address mode and convert to MODBUS register to large mode (1-49999)?
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E stops
Posted by engineer1000 on 4 November, 2015 - 4:54 am
Type of 2 core wire to use to wire e stops together
1
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Robot E-stop over Ethernet - Guardlogix
Posted by RoboKD on 3 November, 2015 - 1:15 pm
Guardlogix Ethernet module to robot safety
MODBUS Link with VFD
Posted by REJIN GEORGE on 3 November, 2015 - 6:04 am
Encountering a VFD-PLC communication problem while communicating with HMI
Getting Error Code 0x01 While Doing Transmission
Posted by BPatel on 3 November, 2015 - 5:44 am
Modbus TCP Frame giving 0x01 error message.
Difference Between an AC-DC-AC Inverter and AC Inverter
Posted by Gama81 on 2 November, 2015 - 10:52 pm
What are the differences between an AC-DC-AC inverter and an AC inverter, even the DC inverter?
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Alternator Stator Windings Insulation
Posted by champion_ip4p on 2 November, 2015 - 5:50 pm
How far does VPI are water resistant?
6
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Air Extraction from Compressor Discharge
Posted by Obiloko4 on 2 November, 2015 - 11:06 am
Cooling of extracted air from compressor discharge.
4
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Piggyback 4-20 ma Signal from DP Transmitter?
Posted by acmercg on 2 November, 2015 - 9:23 am
Need to mate a new system with old one. Can I piggyback 4-20ma signal from DP transmitter?
1
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S5 1430 TCP connection
Posted by bobmarcel on 2 November, 2015 - 12:46 am
How to establish communication between S5 115U via CP1430 TCP and S7 using a TCP connection with out ISO on TCP connection?
1
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Auto Transformer Issues
Posted by azizam on 1 November, 2015 - 10:45 pm
Auto transformer with automatic on load tap changer
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Interested in Learning Allen-Badley PLCs?
Posted by sdgates on 1 November, 2015 - 10:26 pm
Looking for feedback from potential/future Allen-Bradley users.
5
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Gas Turbine GE PG9171E Flow Parameters
Posted by AAK on 1 November, 2015 - 11:56 am
Gas turbine PG 9171E design flow parameters are required. Gt inlet air flow, Gt exhaust air flow and air flow from 5 stage (cooling and sealing air).
CT Polarity and Reverse Power
Posted by habdellatif on 1 November, 2015 - 4:09 am
Generator CT polarity and effect on the reverse power relay and other functions.
2
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HMI 4.01 Troublshooting
Posted by elinordo on 1 November, 2015 - 4:04 am
HMI 4.01 troublshooting for MARK5 under Windows 95NT
2
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Communication between PLC and Digital relays in Switchgear
Posted by charzree on 1 November, 2015 - 2:58 am
Communication between PLC and Digital relays in switchgear
4
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MARKV: R core A8 status and Bad EEPROM Checksum Error
Posted by Esoteric_Stone on 31 October, 2015 - 4:50 pm
After exhaust thermocouples were showing bad readings on the HMI, R core found in A8 status
5
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Pressure Sensor that Inverts a 4-20ma Signal
Posted by mike mckenna on 31 October, 2015 - 2:19 pm
Reverse signal sensor or a signal reverser.
2
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What does the alarm "diagnostic alarm TCQA servo current #2 disagrees W/Ref" mean?
Posted by bil07 on 30 October, 2015 - 1:57 pm
Can anyone explain what the following alarm means "diagnostic alarm TCQA servo current #2 disagrees W/Ref"?
2
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Jacking Oil Pump for Steam Turbine/Generator
Posted by premkumar on 30 October, 2015 - 5:01 am
What is the basis for deciding to provide Jacking Oil for Stem Turbine or for Generator or Both.
2
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GE Mark VI Tci Log
Posted by Esganfia on 29 October, 2015 - 8:51 pm
Tcilog/gsm.log interpretation (alarm flood issues)
2
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Absolute Encoder Position Data Evaluation
Posted by cjswish on 29 October, 2015 - 5:20 pm
Need help with decoding industrial protocol sensor data
2
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Is 450 Feet to Far for Accurate Pressure Sensor Readings?
Posted by ampman on 29 October, 2015 - 4:34 pm
I have a micro 1100. Need to run both pressure sensors 450 ft.
3
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Separation of MODBUS Devices
Posted by Matthew Raterman on 29 October, 2015 - 11:36 am
Rule or best practices for separation of multiple devices communicating to a DCS via MODBUS TCP/IP - how to choose what devices go to what cards and are paired together.
4
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Stopping Main and Standby Lube Oil Pumps on Discrepancy
Posted by premkumar on 29 October, 2015 - 7:47 am
Do we have to Stop the Main and Stand By Lube Oil Pumps upon Discrepancy?
9
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Multi Baud Rate on the Same RS485 MODBUS RTU Bus
Posted by Denaize on 29 October, 2015 - 7:04 am
is it possible to have different baud rate for each slave on RS485 MODBUS RTU bus?
3
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Kepware ClientAce examples
Posted by wwlederer on 29 October, 2015 - 4:33 am
Where are descriptions for the Kepware examples embedded in ClientAce? Where are projects related to the existing descriptions?
Radar Gauge - Wrong level Indication
Posted by J C Das on 29 October, 2015 - 1:27 am
Variation in reading of Radar Level Gauge
GE PLENETG04 Integration
Posted by mtbuntrock on 28 October, 2015 - 11:45 pm
Looking for someone that has integrated to a GE PLENETG04.
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Connecting Generator Rated 18KV to GSU Rated 17 kv
Posted by krishnakka on 28 October, 2015 - 2:36 pm
Connecting 18KV rated generator to 17KV rated transformer.
8
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AVR Drop
Posted by Saied on 28 October, 2015 - 11:50 am
Synch Gen can produce positive Mvar or use negative Mvar. What's AVR rule in this process?
4
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MODBUS RTU Hardware Connection
Posted by rfan on 28 October, 2015 - 8:04 am
Using a ST485EC transceiver for MODBUS RTU communication. Do A and B match and MODBUS A and B directly?
3
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Gas Turbine Starting System (Diesel Engine) Reliability Check
Posted by khlatif on 28 October, 2015 - 6:48 am
Can the diesel engine of gas turbine be tested by starting it while the gas turbine is in normal operation?
5
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CPD Pressure
Posted by dontknowman on 28 October, 2015 - 6:21 am
How CPD pressure change from 5 to 10 bar when generator breaker closes?
2
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Difference Between Profibus DP and Profibus PA
Posted by Kingrosekhan123 on 27 October, 2015 - 11:26 pm
what are the differences between Profibus DP and Profibus PA?
Modbus TCP communication between PLC and RFID
Posted by mlirici on 27 October, 2015 - 1:00 pm
Has anyone done a communication between a Modbus TCP PLC and an RFID with ISO14443
Foxboro 144LD Level Transmitter Has Interfacing Issues with Emerson Delta V DCS
Posted by manojc_24 on 27 October, 2015 - 5:32 am
Does a Foxboro 144LD level transmitter have interfacing issues with Emerson Delta V DCS? Foxboro 144 LD makes the faceplate controller randomly go into manual. The only solution to get it back to auto is to restart the LT.
Configuring Siemens VFDs
Posted by youngcontroleng on 26 October, 2015 - 6:14 pm
Looking for help with configuring Siemens VFDs, using the BOP-2 Operational pad to enter drive parameters and allocate terminals.
9
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Counter Negative
Posted by grajesh on 26 October, 2015 - 7:13 am
GE-9E unit gas flow totalized counter started reading negative while unit is running
2
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Mandatory Control Valve Feedback
Posted by azylan on 26 October, 2015 - 4:51 am
Is it mandatory to provide Control Valve's feedback?
Available Processor List Udate with Unity pro XL 8.1
Posted by Reivax76 on 25 October, 2015 - 11:49 am
How to update the available processor list in Unity pro XL V8.1?
5
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MKV HMI Upgrade From Window XP to WorkStationST
Posted by barswann on 25 October, 2015 - 11:17 am
HMI Not Receiving Signal From the MK V After Upgrade From Windows XP to Windows 7 With WorkstionST
No Communication between LM 90 and Fanuc CPU 311
Posted by asif shah on 25 October, 2015 - 3:43 am
After installing LM 90 and GE Fanuc CPU 311 received warning message saying PLC is offline and monitor key switch not present.
Critique of College Project - Control of Servo Motor
Posted by ControlPhreak on 24 October, 2015 - 10:04 am
Need help in an academic work regarding position control.
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Modbus TCP Reading Error with 32 Bit Floating Point HR
Posted by Luis Aiassa on 23 October, 2015 - 2:36 pm
Error while reading a 32 bit holding register in a Honeywell masterlogic 50 PLC, using MODBUS TCP protocol to poll the PLC with inductive automation SCADA software.
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DC Lube Oil Problem
Posted by abdullahalyaqoubi on 23 October, 2015 - 12:57 pm
DC lube oil is start with out any problems with pressure and setting pressure switch
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Frame 9E Low CPD
Posted by Obedia_pass on 23 October, 2015 - 9:46 am
low CPD of Frame 9E after major inspection and compressor change
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3 Position Switch
Posted by descrambled on 23 October, 2015 - 9:27 am
Need help with 3 position switch indication
5
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GE 9FA Gas Turbine Fuel Flow High
Posted by niazbibiyana on 22 October, 2015 - 2:22 pm
What could be main reason of initial gas fuel flow very high?
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Making new cables in the Field for CSA Approved CL1 DIV II GP B, C & D Heater
Posted by GARY on 22 October, 2015 - 12:36 pm
Want to put heater in a new location; can I change the cable entry without hampering certification?
3
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Atomizing Air in GE Frame 9
Posted by dontknowman` on 22 October, 2015 - 12:11 pm
What would happen for atomizing air when changing the fuel from liquid to gas?
2
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Load Setpoint in the Event of Load Rejection and Switching to Island Mode
Posted by siyamak on 22 October, 2015 - 1:37 am
The effect of load setpoint in the event of load rejection and switching to island mode.
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Thermowells in Jacketed Vessels
Posted by hast66 on 21 October, 2015 - 5:38 pm
How should thermowells be installed in steam jacketed vessels?
Low CPD of GE Frame 9E After Major Inspection
Posted by Obedia_pass on 21 October, 2015 - 11:51 am
Observed reduction in CPD of new compressor after Major inspection.
6
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Auto Synchronization Permissives
Posted by Amr1589 on 20 October, 2015 - 7:19 pm
why running with the two hydraulic oil pump prevents Auto-sync?
7
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Synchronized Generator Current
Posted by Barbican on 20 October, 2015 - 7:49 am
Synchronized Generators current supplying current while outgoing feeder is open.
NERC Certification
Posted by aguilar81 on 20 October, 2015 - 4:01 am
In the process of taking the NERC test (reliability coordinator) any suggestions on material that may help?
9
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Small PLC with 3 Axis Stepper Control
Posted by Curt Wuollet on 19 October, 2015 - 12:58 pm
Need a small, reasonably price PLC that can do trapezoidal motion on 3 axes.
2
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Auto Transformer Voltage Changes
Posted by azizam on 18 October, 2015 - 11:43 pm
In an Auto transformer of 115 KV/69 KV with automatic tap changer when the voltage increases on 69 KV side, the voltage on 115 KV side decreases.
8
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Gas Turbine Compressor Efficiency Down
Posted by AAK on 18 October, 2015 - 5:06 am
Low efficiency in Gas Turbine (GE PG9171E) Compressor section.
4
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High Vibrations in Bearing #2 9 FB Gas Turbine
Posted by elomoon on 17 October, 2015 - 11:59 pm
Turbine experiences high vibrations when reaching speed of 1006 rpm.
8
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Mark VIe HMI to DCS Communiation Error MODBUS TCP/IP
Posted by SM on 17 October, 2015 - 8:35 am
Using Yokogawa ALE111 card as the master here and using one of the remote HMI as the MODBUS slave.
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MarkVI P2V Comm Issues - Configuring VMware
Posted by TurbineJunior on 17 October, 2015 - 8:06 am
Mark VI P2V comm issues. How should I configure VMware?
1
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Integrating Logic Modifications on MARK VI
Posted by ralph on 16 October, 2015 - 6:29 pm
what should I look out for?
8
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Isolation Transformer Sets Off Alarm on Battery Backup
Posted by Donny on 16 October, 2015 - 12:03 pm
USP alarms with input from floating neutral transformer. Solution?