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Forum Archive
ABB AC800M code for Profibus
Posted by Tsioumas Evangelos on 13 May, 2015 - 9:35 am
Compact control builder code/project for profibus communication.
Limits to Line Voltage Due to Capacitance
Posted by Larry Hale on 12 May, 2015 - 8:18 pm
Our central generation is 13.8kV, and has a 200A low resistance ground. A feeder runs 18 miles, and is mounted 7' above grade. To limit current draw due to capacitance, we are using 13.8 kV. Is there a way to use 35.5kV?
2
replies
Low PCD on Solar Turbine
Posted by RubEspn on 12 May, 2015 - 8:58 am
Solar Turbine not firing off, valves open up but sounds like starter may not be engaging?
1
reply
Improvements in DCS System
Posted by Anil Rajak on 12 May, 2015 - 8:11 am
Please share desired improvements in the DCS which is not available in any of the DCS.
BOSCH CC300 Reference Position
Posted by nsdjole on 12 May, 2015 - 7:42 am
How to adjust tool reference position
1
reply
Bus Polarization
Posted by Woelffel Vincent on 11 May, 2015 - 12:09 pm
Is it possible to polarize the bus with a 3.3V supply?
7
replies
High Pressure on Lube Oil Tank
Posted by khairi on 11 May, 2015 - 10:33 am
Turbine tripped on high pressure lube oil tank
2
replies
Problem with Grid Power Display Value
Posted by devendra_ev on 11 May, 2015 - 6:34 am
Problem with Grid Power display value
2
replies
Sink Wiring Questions
Posted by spring_daffodil on 11 May, 2015 - 2:31 am
Question regarding sink wiring in a control panel.
1
reply
Mark-VI Toolbox Terms
Posted by samson16 on 10 May, 2015 - 3:35 am
Need some definitions for Mark-VI Toolbox terms
2
replies
Simulator/Training Kit for Instrumentaiton
Posted by samson16 on 10 May, 2015 - 3:19 am
Looking for a simulator to provide training on industrial instrumentation
1
reply
Siemens S7200 with Another S720 as Slave Not Activating Outputs in Run Mode
Posted by JustinT on 10 May, 2015 - 2:19 am
Siemens S7200 with CPU 224XP and its slave, CPU 222, not activating any outputs in run mode.
2
replies
Hydraulic Ratchet Problem
Posted by osama111 on 9 May, 2015 - 11:39 am
Variable speeds (torque converter)
Configuration of Foundation Fieldbus Instruments
Posted by Abour on 9 May, 2015 - 5:58 am
What is the software used to configure FF transmitters during loop check activity?
4
replies
What is a TIC Cabinet?
Posted by Kevin on 9 May, 2015 - 1:26 am
Could some one help me in defining what exactly is a TIC Cabinet?
1
reply
Communication Between Visual Studio and a PLC
Posted by hamit1453 on 9 May, 2015 - 1:13 am
Setting up communication between visual studio and an LS PLC.
1
reply
Good Online Sources of Information for Instrumentation and Control Engineering
Posted by liveogd on 8 May, 2015 - 6:59 pm
Looking for sources for online instrumentation and control information to learn more.
4
replies
New in MODBUS
Posted by powerpack| on 8 May, 2015 - 3:15 pm
First time with MODBUS, Help needed
14
replies
Increasing VAR Output of a Machine or Decreasing VAR Requirement of the System
Posted by amritanshup on 8 May, 2015 - 1:49 pm
What are the different ways to increase VAR capacity of the generator?
3
replies
Control and Instrumentation Maintenance in a Hydro Power Station
Posted by Piki on 8 May, 2015 - 9:57 am
Looking for technical instructions for control and instrumentation in a Hydro power set up
Metering 2 Feeders with a Single Power Quality Meter
Posted by popdaddio on 8 May, 2015 - 5:30 am
Metering 2 115 kV lines with a single power quality meter
9
replies
Turbine Failing to Ignite
Posted by khairi on 8 May, 2015 - 2:54 am
After plant blackout, turbine fails to ignite.
Versa View Recipe, external MS Access
Posted by bqadri on 7 May, 2015 - 6:29 pm
After hard drive crash on Allen Bradley PLC, cannot restore recipe.
3
replies
Criteria for Local or Remote Indication Instrument
Posted by AE1 on 7 May, 2015 - 1:46 pm
Criteria for local or remote indication instrument
Sensors to Measure Pressure and Temperature for Dirty Hot Gas
Posted by Kataeb on 7 May, 2015 - 5:01 am
Where can I find sensors and gauges to measure pressure and temperature of dirty hot gases?
1
reply
Pressure Measurement Vacuum Condenser
Posted by Stewart on 7 May, 2015 - 4:26 am
Pressure transmitter hookup for condenser (vacuum)
4
replies
Replacing the Wheel Space Thermocouple
Posted by shyam on 7 May, 2015 - 1:56 am
Need advice about replacing the wheel space thermocouple.
5
replies
Water Line Pressure Transmitter Elevation
Posted by dragonmsl on 6 May, 2015 - 8:38 pm
what if transmitter is installed above the tapping point?. Is it possible to solve this problem with offset elevation setting?
Digiforce 9306, What Load Sensor To Use
Posted by Metalspider on 6 May, 2015 - 7:39 pm
Looking for a less expensive force sensor like the Burster bending beam load cell model 8510-5002 to use with Digiforce 9306
Unable to Read Meters (MODBUS RTU) on PCVUE 8.10
Posted by talha on 6 May, 2015 - 1:42 pm
Unable to read Meters (MODBUS RTU) on PCVUE 8.10. It was working fine before reinstalling the PCVUE 8.10
1
reply
Yokogawa CentumPV, CS3000, Write Tag Data from DOS Prompt
Posted by fluoronator on 6 May, 2015 - 10:45 am
How to write tag data from the DOS prompt on a Yokogawa CentumVP or CS3000 DCS.
1
reply
Honeywell ST3000 Pressure Transmiter Fault
Posted by msv on 6 May, 2015 - 8:31 am
Honeywell ST3000 Pressure Transmitter sends more than 20 mA while the pressure is normal.
9
replies
Bleed Valve Limit Switch
Posted by grajesh on 6 May, 2015 - 7:53 am
In frame-9E we are receiving bleed valve trip from the top two bleed valve limit switches due to faulty switches.
2
replies
HART Protocol
Posted by Abour on 6 May, 2015 - 6:59 am
HART protocol: Digital signal or analog signal family?
Software to Automatically Test PLC Programs
Posted by Edwin on 6 May, 2015 - 3:13 am
Can any one suggest any tool to automate test for our programs? We are currently using CodeSys 2.3 platform.
Control Diagram Design and Testing
Posted by deleordainedcontrol on 5 May, 2015 - 3:29 pm
What software should I use to simulate a control diagram to see the performance?
Calibrating and Correcting Errors on a Floboss 503
Posted by rahulnitj1 on 5 May, 2015 - 9:16 am
How to correct errors when calibrating Floboss 503
1
reply
Pneumatic Shutdown Valve Pressure
Posted by S Nair on 5 May, 2015 - 2:40 am
Pneumatic Shutdown valve actuators are sized for minimum pressure 5.5 BARG,(80 psig)
10
replies
Losing Control Signal Over 800 Foot Distance with RS-485
Posted by Lloydzoo on 4 May, 2015 - 12:52 pm
Needing some advice for installation of a MODBUS based fan control touch-pad system.
2
replies
Monitoring Liebert DS Crac
Posted by cfgriffith on 4 May, 2015 - 10:54 am
Monitoring a Liebert DS Crac using MODBUS.
Help on Final Thesis - Inverted Pendulum Control
Posted by jderuyter on 4 May, 2015 - 10:21 am
Need help on my masters degree thesis on designing the PLC interface for an inverted pendulum system. I have the sensors and the motor and a Siemens s7 series PLC.
Configuration MODBUS
Posted by joud on 4 May, 2015 - 7:59 am
How to transfer/receive the data with MODBUS protocol between control systems, Yokogawa Centum and Allen Bradley PLC?
5
replies
Need a Brief Introduction of ARES Model
Posted by sjtusyc on 3 May, 2015 - 10:50 pm
Can someone give a brief introduction of ARES model?
2
replies
ISA's MODBUS CAP Question
Posted by David_2 on 3 May, 2015 - 10:34 am
ISA's Modbus CAP question fails
7
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.
4
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?
5
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?
1
reply
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.
4
replies
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.
3
replies
Mould Level Control Problems
Posted by santosh on 29 April, 2015 - 6:04 am
Mould level control problems in billet industry
4
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?