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Forum Archive
ISA's MODBUS CAP Question
Posted by David_2 on 3 May, 2015 - 10:34 am
ISA's Modbus CAP question fails
2
replies
What Hardware Do I Need To Buy Besides a PLC to Run a Traffic Light Program?
Posted by Craig Y. on 2 May, 2015 - 10:29 pm
I am a college student trying to complete my last class which requires me to program a PLC to run a 4 way traffic light program.
2
replies
Generator Overload Question
Posted by poom on 2 May, 2015 - 12:44 pm
What happens when plant islanding condition and internal load more than generator ex. internal load?
2
replies
Problems with Speed Bypass Valve Not working
Posted by Inst2015GE on 2 May, 2015 - 11:53 am
Speed bypass valve LFBV(65FP-1) not not moving when changing from gas to liquid fuel.
1
reply
Multiple Master DNP3 Communication
Posted by kkcbe on 2 May, 2015 - 4:43 am
Can RTU support Multiple Master Terminal units via DNP3 Communication?
Analog Forcing on Mark-VI Simulator
Posted by samson16 on 2 May, 2015 - 1:03 am
Has anyone have a clue of forcing analog signals on a Mark-VI simulator?
Intellution OPC Server Toolkit Replacement
Posted by GuyH on 1 May, 2015 - 9:18 pm
I need a replacement for the Intellution OPC Server Toolkit that is no longer supported.
1
reply
Star Connection and Currents
Posted by LukeeVassallo on 1 May, 2015 - 6:11 pm
Want to understand how the star connection and currents work.
High Vibration On Gas Turbine Load Gear Box & Generator Pedestal Bearing
Posted by ChaudhryS on 1 May, 2015 - 5:49 pm
We are experiencing high vibration on our gas turbine (MS5001P) load gear box and generator bearing pedestal. Vibrations indicate on CSI vibration meter with no significant change in casing seismic probes.
Interlocks on Pumps
Posted by seansmith on 1 May, 2015 - 2:59 pm
would like to know about pump interlocks if anyone can advise please
Replacing Exd Junction Box for Exn Junction Box
Posted by Noah Atta on 30 April, 2015 - 7:03 am
Is it possible to replace Exd junction box for Exn junction box?
5
replies
Effect or Implication of a Negative MVAR in a Turbine Generator
Posted by Avworhiare on 29 April, 2015 - 5:12 pm
The effect of a negative (-ve) Megawatt-volt-ampere-reactive (MVAR)
2
replies
Current Through CT Meter via Transformer from the Main Lines.
Posted by sowmya on 29 April, 2015 - 3:32 pm
Current through CT meter via Transformer from the main lines.
RTU DNP3 Communication to Multiple MTU's
Posted by Krishnakumar.S on 29 April, 2015 - 1:13 pm
RTU will support for Multiple MTU's via DNP3 Protocol.
1
reply
OPC Communication Modes
Posted by NewToControl on 29 April, 2015 - 6:08 am
A couple of questions regarding the communication between OPC client and OPC server.
2
replies
Mould Level Control Problems
Posted by santosh on 29 April, 2015 - 6:04 am
Mould level control problems in billet industry
2
replies
Hart Communication Issues After Mk V to Mk VIe Upgrade
Posted by popdaddio on 28 April, 2015 - 9:35 am
Hart 475 communication issues following MkV - MkVIe Upgrade
1
reply
Average Instruction in Ladder Logic
Posted by Forat on 28 April, 2015 - 5:21 am
Average Instruction (AVE) ladder logic (RSLogix 5000 version 19)
Elevator Ladder Logic
Posted by Hades on 27 April, 2015 - 3:23 pm
I'm working on personal project
3
replies
MKVe HMI Commands Not Responding and Unit Is Running
Posted by jpmccros on 27 April, 2015 - 12:02 pm
Troubleshooting a MKVe with Toolbox ST. No pushbutton commands are being sent to the control system from any HMI.
Connecting Momentum via MB+
Posted by Francisco Burguillos on 27 April, 2015 - 10:00 am
Connecting Momentum I/O via Peer Cop
G60 Parameter for Fanuc 0M Controller
Posted by jasper joysingh on 26 April, 2015 - 9:07 am
Looking for information about G60 option parameter for FANUC 0M Controller
4
replies
Problem Being Faced in Measurement of Level of a Tank Under Vacuum
Posted by NILESH BHOLE on 26 April, 2015 - 6:26 am
Using a DP type transmitter to measure level of liquid in a tank under vacuum pressure.
1
reply
Siemens PCS7 Gateway to ABB Advant
Posted by zarifeh on 26 April, 2015 - 12:08 am
Looking for Siemens CM104-MB300 gateway information
1
reply
DAC Output (0-4v)
Posted by Peter102 on 25 April, 2015 - 6:31 pm
Signal Conversion
Modbus RTU Communication in a Danfoss Frequency Converter
Posted by hierromovil on 25 April, 2015 - 3:21 pm
Modbus RTU communication between a Danfoss drive and a computer
ABB Procontrol P13 DCS Alarms
Posted by mohamed on 25 April, 2015 - 8:57 am
ABB Procontrol P13 traffic director alarm causing plant trips
4
replies
Turbine Selection and DC Generator
Posted by LukeeVassallo on 25 April, 2015 - 7:57 am
Which turbine is most suitable? and how is DC generated since the DC generator is mounted in the stator?
Atlas Copco Sequencer ES100 Failure
Posted by BIL07 on 25 April, 2015 - 4:43 am
After recent power glitch, Atlas Copco Sequencer stopped working.
2
replies
4 Mw Electro Motor Problem
Posted by masoud on 24 April, 2015 - 7:10 am
4 Mw motor low frequency sound oscillation
1
reply
MODBUS Issue with Momentum PLC and Concept 2.6 LL984
Posted by jing88 on 24 April, 2015 - 4:52 am
Concept 2.6, Momentum 170 CCC 78010, VSD ATV61
Virtualized Old Hard Disk with Intouch Communication Problem
Posted by Humprey on 24 April, 2015 - 3:50 am
PC with Intouch communicating with S5 via Ethernet. That PC broke, but somehow they got the content (hard disk) moved into a virtual machine (VMware) of a new PC.
1
reply
Breaking Excitation Current of Transformer
Posted by Mark Stefanick on 23 April, 2015 - 7:31 am
Breaking the excitation current of 40-13.2kV, 833kVA, xfrm with no load.
2
replies
Separator Level Measurement
Posted by kalipso on 23 April, 2015 - 6:06 am
Level measurement in three phase horizontal separator
28
replies
Exhaust Thermocouple is Showing -18 0c in MarkV
Posted by bpsemd on 22 April, 2015 - 8:04 pm
A Set of Exhaust Thermocouple related with <S> core is showing -18 0c in GE MarkV
Latency HMI <=> PLC
Posted by gordone on 22 April, 2015 - 2:18 pm
Dicuss latency HMI <=> PLC
Wiring a Servo Motor
Posted by pearllypearl on 22 April, 2015 - 1:33 pm
Wiring a Servo Motor LT to terminate in DCS but also connected to local indicator.
Drum Level Controller Logic
Posted by shajan on 22 April, 2015 - 8:13 am
Developing PLC logic for drum level controller
Connecting SCADA Via Ethernet/IP on a PC
Posted by normad on 22 April, 2015 - 5:06 am
Connecting multiple KUKA robots to a SCADA running on a PC over EtherNet/IP
1
reply
Foxboro IMT25 Flow Transmitter Communication
Posted by ZacharyC on 21 April, 2015 - 1:55 pm
IMT 25 Flow Transmitter is working properly and yet no values are being displayed on the DCS.
1
reply
Measuring the Shrinkage of Cloth
Posted by sensorless on 21 April, 2015 - 6:04 am
How to measure the shrinkage of a cloth of small thickness.
Socomec Energy Meter Interfacing With Microcontroller Over MODBUS ProtoCol
Posted by malampati on 21 April, 2015 - 2:00 am
Communicating to a Socomec Energy Meter with MODBUS RTU From Texas Instruments Microcontroller (TM4C123Gh6PGE)
4
replies
4-20ma Read to 2 AI Devices
Posted by John Nguyen on 20 April, 2015 - 5:13 pm
Split 4-20mA signal of a sensor to 2 AI device
4
replies
MODBUS to ASCII Serial
Posted by David Siler on 20 April, 2015 - 12:37 pm
MODBUS to ASCII Serial (not MODBUS ASCII)
8
replies
20HD Energization in MKVIe
Posted by Haroon on 20 April, 2015 - 12:06 pm
How to energize 20HD solenoid valve in control ST software in MKVIe.
4
replies
Honeywell Safety Manager and ICS Triplex
Posted by almasnaz on 20 April, 2015 - 7:37 am
Connecting IO modules of SM to IO modules of ICS Triplex
Communication S7300 and Remote I/O on Wireless
Posted by dchauhansays on 20 April, 2015 - 7:20 am
Communication between S7300 PLC and its Remote I/O on wireless
4
replies
Thermocouple Cable for Signal
Posted by grajesh on 20 April, 2015 - 2:34 am
Can we use the thermocouple cable for signal
4
replies
Flame Detector Cable
Posted by grajesh on 20 April, 2015 - 2:33 am
Flame detector # 4 cable damaged, it was replaced along with new flame detector. TCEA card replaced as 330 V from Mark V was missing.
6
replies
MODBUS RTU for Boiler Control Module
Posted by langancm on 19 April, 2015 - 10:12 am
MODBUS device from Master to two (2) slaves
1
reply
Flow Transmitter Values for Gas Turbine
Posted by abdi on 19 April, 2015 - 10:07 am
Range of flow meter for gas turbine correct for 5 out of 6 turbines. Other has USL value at 1/5 correct value.
SIL Verification with Generic Data
Posted by seondeok on 19 April, 2015 - 6:37 am
I did SIL verification with Generic Data (SILsolver/Exida/PDS) without actual failure rate, Can I say that this loop is satisfied?
1
reply
Droop Control on Steam Turbine
Posted by stor138 on 19 April, 2015 - 1:47 am
Questions regarding droop control on a extraction/exhaust pressure steam turbine.
2
replies
Leading Generator Power Triangle
Posted by VJP on 19 April, 2015 - 12:58 am
For a leading generator (absorbing vars), how is its MVA represented using rectangular coordinates?
1
reply
Is IoT an Inherently Dangerous Movement?
Posted by CharlieM on 17 April, 2015 - 4:09 pm
The recent IoT (internet of things) meme seeks to connect everything, potentially, with everything else. That is a dangerous idea. It trades safety for convenience and enables attacks.
3
replies
Mark VI and Mark VIe
Posted by voyager2_kbc on 17 April, 2015 - 1:46 pm
Is software of Mark VIe the same as Mark VI?
2
replies
Communication using OPC Protocol with Siemens S7 PLC
Posted by lululupimenta on 17 April, 2015 - 9:10 am
WRONG OPCCOMN_PS.DLL VERSION IS REGISTERED. Someone can help me?
3
replies
Starting a Synchronous Motor
Posted by GMC1984 on 17 April, 2015 - 3:17 am
Please help me fully understand exactly how a large synchronous motor is started?
7
replies
Trip Log Display on Speedtronic Mark 5
Posted by DAMENE on 16 April, 2015 - 6:06 pm
We have a problem with the trip log display on our Gas Turbine, equipped with Speedtronic Mark 5 system (RST) and HMI cimplicity 3.22
1
reply
Turbomach Taurus 60 Gas turbine Speed Deviation Fault
Posted by fahrikem on 16 April, 2015 - 12:32 pm
Gas turbine speed deviation fault
1
reply
260 kVA Diesel Generator Drops Under 250 A load
Posted by marc0s on 15 April, 2015 - 4:06 pm
260 kVa FGWilson Diesel Genset drops voltage when under 250 amps load
1
reply
Zone 2 Specification
Posted by jeffa on 15 April, 2015 - 12:59 pm
How to decode Zone 2 specification
9
replies
DSLC from Woodward Not Operate in Droop?
Posted by Marina on 15 April, 2015 - 9:34 am
Does DSLC woodward have restriction operating on droop?
Displaying Data from Elektronikon mkIV on PC Screen
Posted by manel on 15 April, 2015 - 7:01 am
visualize data from elektronikon mkIV on pc screen
1
reply
SIL 3 RTD Converter to 4-20mA
Posted by enoufas on 15 April, 2015 - 6:42 am
SIL 3 certified RTD to 4-20 mA converter
1
reply
Water Injection System of GE Frame 9e
Posted by instrumentationautomation on 15 April, 2015 - 1:41 am
What rate does water inject into turbine in liquid fuel gas turbine on preselected and BASE LOAD?
2
replies
Communicating between CAT EMCP II and GE Fanuc
Posted by Chris_IWO on 14 April, 2015 - 10:47 pm
Communication Setup Between CAT Engine's EMCP II to GE Fanuc LM 90 70
4
replies
Hydrogen Leakage Through Three Valve Manifold of DP Transmitter
Posted by instrumaInt on 14 April, 2015 - 10:09 am
After fire in the three valve manifold connected to DP transmitter caused by Hydrogen leak. Want to know what checks to be performed on these manifolds while in service and at what frequency.
1
reply
BLDC Speed Control
Posted by dwafford13 on 13 April, 2015 - 10:29 pm
Understanding speed control of BLDC motors that are NOT wired for PWM.
Power Factor and Load Angle in Synchronous Generator
Posted by Luke on 13 April, 2015 - 7:38 pm
The relationship between the inner workings of the generator and the mathematics
1
reply
Master/Slave Help to Synchronize the Speed of Two Different Sized Rollers
Posted by JPAnderson on 13 April, 2015 - 4:10 pm
Trying to synchronize surface speeds of two different size rollers.. Using AB Powerflex 4 VFD
8
replies
MOSCAD 400 as MODBUS Master
Posted by hishamahmed on 12 April, 2015 - 10:52 pm
I need sample tables for configuring MOSCAD PLC to poll Inputs, Outputs & Registers from Siemens S7-200.
1
reply
Replacing Analogue Positioner Fisher 3610J with DVC Equivalent
Posted by Engr_Ideh on 12 April, 2015 - 8:32 pm
Replacement of Fisher 3610J Analogue positioner and I/P converter with its Fisher DVC equivalent model.
1
reply
Looking for a Scheduling Application with MODBUS Addressing
Posted by DrKindorf on 12 April, 2015 - 3:59 pm
Scheduling/ Signalling Application That will work with MODBUS (or with discrete I/O)
1
reply
Communication of Hima F8650x CU with a MODBUS Slave
Posted by a_mujahid on 12 April, 2015 - 8:02 am
I am trying to communicate Hima F8650x CU with ABB Flame amplifier unit FAU810 using MODBUS over RS485.
Paramagnetic Oxygen Analyzer Calibration
Posted by Pratikchatterjee on 12 April, 2015 - 7:28 am
Zero and span gas for paramagnetic oxygen analyser
2
replies
Slave ID Importance in MODBUS TCP/IP
Posted by vjraghavank on 12 April, 2015 - 1:31 am
How much significant is Slave/Device ID in MODBUS TCP/IP protocol? Don't they use IP address instead of Device ID?
Time Sync from Server for Areva 30 Series Relay
Posted by vjraghavank on 12 April, 2015 - 12:33 am
Can we use PC's timing as SNTP instead of GPS in Areva's C264 BCU DB?
What a Control Engineer Should Know
Posted by Pele1 on 11 April, 2015 - 12:24 am
I search after information that can explain to me more about what a control engineer in robotics company should to know
Looking for the LCN Version of a TPS System from a NCF.CF File
Posted by Khan on 10 April, 2015 - 6:40 pm
Looking for a way to extract the LCN node's version directly from the NCF.CF file of a TPS System.
5
replies
Difference between a DCS and a PLC
Posted by pdg8512 on 10 April, 2015 - 1:25 am
What are the key points of differences between a PLC and a DCS
17
replies
Low Air Flow Confirmation
Posted by PaulKraemer1 on 9 April, 2015 - 2:04 pm
Looking for sensor to confirm low air flows
3
replies
Gas Splitter Valve Split and Stroke Out of Mark V?
Posted by lesswood on 9 April, 2015 - 4:26 am
Difference between premix fuel split set point from 83,25% split (fixed) and gas splitter valve command stroke (78,8...%). Whats happening in the MARK V?
Tyre Traffic Control
Posted by Hardik on 8 April, 2015 - 8:31 am
Tyre traffic control using VFD AND encoder
5
replies
Ignition Energy
Posted by hasseli on 8 April, 2015 - 7:45 am
Confusion about 20 Micro Joules limit.
3
replies
Load Angle and Power Factor
Posted by Thirumoorthy on 8 April, 2015 - 7:23 am
Difference Between Load angle and Power factor
4
replies
GE Frame 9E MS9001E Air Processing Unit
Posted by Avworhiare on 8 April, 2015 - 6:48 am
The working of the Air processing unit APU
4
replies
Cimplicity .gef problem
Posted by raoufelect on 7 April, 2015 - 6:12 pm
Error when trying to run the GTG.gef in cimplicity HMI.
1
reply
Instrument Loop Voltage Too Low
Posted by tywright on 7 April, 2015 - 11:57 am
Instrumentation loop power control issue.
Bumpless Transfer from 01 UPSS to Another
Posted by vinajeyalo on 7 April, 2015 - 9:55 am
Bumpless UPSS power transfer from one to another UPSS
3
replies
Styrofoam Beads Sensing
Posted by matwon on 7 April, 2015 - 9:18 am
Which kind of sensor for the detection of small Styrofoam beads in a galvanized pipe?
How to Connecting HYSYS to Wonderware InTouch
Posted by tomoprihastomo on 7 April, 2015 - 1:07 am
How to get information connect HYSYS to OPC KepserverEX
KepServerEX OPC Server communication problem with Siemens S7-300 PLC
Posted by ankurgajjar on 6 April, 2015 - 2:07 pm
KepServerEX OPC server communication problem with Siemens S7-318-2 DP PLC along with CP343-1 Ethernet lean module.
5
replies
Toolbox EGD Configuration and OPC
Posted by alirabieali on 6 April, 2015 - 8:34 am
Connecting mark vi using Matrikon OPC.
Effect of the Weights in an LQR/LQG Problem
Posted by danieee on 4 April, 2015 - 7:10 pm
Given a performance index (PInd), and a fixed weight (Q) on the states, how can I design an LQG controller such that the input is less noisy and yet PInd is minimal?
1
reply
Quantum MODBUS Plus Communication
Posted by GGill on 4 April, 2015 - 2:58 pm
Modbus Plus communication between Quantum PLC and ControlLogix PLC
7
replies
Activating a Solenoid 2500 using a 24 VDC Solenoid
Posted by SAMMY MARTINEZ on 4 April, 2015 - 10:18 am
need to activate solenoid 2500' away. What is required a 24vdc solenoid or a 120vac solenoid?
2
replies
Need a Ph.D. Dissertation Topic in Gas Turbine Performance
Posted by benjie on 4 April, 2015 - 3:48 am
Need assistance finding a topic related to Gas Turbine Performance for my Ph.D. dissertation in a Nigerian University.
1
reply
Jace Controller To MODBUS Slave
Posted by Trevor Adelman on 3 April, 2015 - 6:52 pm
Connecting a Jace controller to a MODBUS slave.
Feedback Control With Not Enough Sensor Sample Rate
Posted by LCJ on 3 April, 2015 - 10:39 am
Want to control a mass-spring-damping system's output displacement as a 1kHz sine wave. The displacement sensor's sample rate is not high enough. A paper said adding a integrator can solve the problem, I don't understand the reason.