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from the Brain Dump department...
Control.com Post Archive
Engineering and workplace issues. topic
Posted by Farzin on 7 May, 2014 - 10:39 am
Thermocouple extension wire resistance
Thermocouple extension wire resistance
PLCs and related questions. topic
Posted by FredS on 7 May, 2014 - 8:19 am
Multiple Controllers on one RTD
How can I use the same RTD for more than one controller?
Power generation equipment control. topic
Posted by Suresh on 7 May, 2014 - 4:45 am
Trifoiling problem of cables
Trifoiling of power generation cable was done incorrectly during commissioning, which causes heating of the cables and results in cable fault.
Software, including programming, OS issues, etc. topic
Posted by Mostafa Qasemi on 6 May, 2014 - 2:57 pm
Honeywell connection an output Scada point to a PID Block?
how connect an output Scada point to OP PID Block in control module?
Communications systems and equipment. topic
Posted by HBAttila on 6 May, 2014 - 1:26 pm
OPC Server Performance optimization
How can I optimize OPC server Performance?
Engineering and workplace issues. topic
Posted by Asok Kumar Hait on 6 May, 2014 - 11:20 am
Multihole orifice plate
User experience in use of multihole (conditioning) orifice plate
Power generation equipment control. topic
Posted by SSU on 6 May, 2014 - 9:56 am
Why Synchronize to a Dead Bus?
What is a Dead Bus and why Synchronize to it?
Power generation equipment control. topic
Posted by Ahmed on 6 May, 2014 - 6:45 am
Synchronizing to a Dead Bus
Valve Kick when synchronizing to a Dead Bus
Continuous process industries, DCS questions. topic
Posted by PT on 6 May, 2014 - 5:23 am
Floating point in little endian can be read in big endian but value not same.
Reading IEEE little endian format data
Software, including programming, OS issues, etc. topic
Posted by Sabarreesh on 6 May, 2014 - 4:17 am
Modbus connect with Android via TCP
we can connect android APP with modbus simulator (mod_RSsim.exe) using socket connection. but we couldn't write and read values from registers using functions from "jamod-1.2-SNAPSHOT.jar".
we got output like this 00 00 00 00 00 06 00 03 00 00 00 00
Power generation equipment control. topic
Posted by Curious George on 6 May, 2014 - 2:33 am
Critical Turbine control data over Ethernet
Throttle critical values over ethernet?
Engineering and workplace issues. topic
Posted by ASHUTOSH KUMAR on 6 May, 2014 - 2:28 am
Ground to Neutral Voltage-Limit
DCS floating voltage failure damaging workstation motherboard
Information resources, documentation. topic
Posted by John Moraes on 5 May, 2014 - 7:05 pm
Modbus RTU Serial Trunkline 'Taps'
Looking for 'Taps' for Modbus serial 4 wire trunkline.
Power generation equipment control. topic
Posted by William Monson on 5 May, 2014 - 1:04 pm
Mark V Scan rates
How can the scan rate on the SCADA and the Response time of the transmitter be knitted together?
Communications systems and equipment. topic
Posted by bassambassam on 5 May, 2014 - 11:31 am
Modbus TCP communication via RS232 to TCP converter
How can i configure a communication between WINCC V7.0 and a controller through a RS232 to TCP converter??
Power generation equipment control. topic
Posted by Neo on 5 May, 2014 - 8:28 am
Getting a better understanding of gas turbine control
How to get a better understanding of gas turbine control?
Power generation equipment control. topic
Posted by hh on 5 May, 2014 - 7:37 am
Load rejection in triple shaft turbines
Triple shaft turbines that have load rejection mode?
Engineering and workplace issues. topic
Posted by Jomin on 5 May, 2014 - 3:49 am
Instrument cable earthing
Requirement of cable gland earthing.
Power generation equipment control. topic
Posted by AliAdil on 4 May, 2014 - 1:36 am
What are the steps to synchronize while operating on house load
What are the steps to synchronize while operating on house load (in Frame 6 Mark VI-e control)
Human-Machine Interface and SCADA. topic
Posted by Mostafa Qasemi on 3 May, 2014 - 2:28 pm
Calling up filtered alarm list
Creating a filtered alarm list in Honeywell HMI station
Power generation equipment control. topic
Posted by Ugene on 3 May, 2014 - 12:58 pm
seeking better understanding of how generator works
seeking better understanding of how generator works. An inquisitive mind awaits enlightening.
Engineering and workplace issues. topic
Posted by Shahed on 3 May, 2014 - 7:33 am
Negative phase sequence
Alternator Negative sequence volt are showing 100% while positive sequence volt are showing 0%.
Communications systems and equipment. topic
Posted by yogeshwar on 3 May, 2014 - 3:01 am
Zebra printer communicate with Delta PLC
Communicating between a zebra printer with a Delta PLC for Labeling Application.
PLCs and related questions. topic
Posted by tharun on 2 May, 2014 - 4:47 am
Guardlogix Controller
What is the difference between a Rockwell Guardlogix controller and a Rockwell ICS triplex AADvance Controller in terms of Functional safety?

Power generation equipment control. topic
Posted by raul on 2 May, 2014 - 12:56 am
Reheater Steam turbines Valves
Why is the first Control valve after stop valve?
Application Questions and Problems topic
Posted by Luap on 1 May, 2014 - 8:22 pm
Generator damper control
Changing from pneumatic damper control to electronic damper control
Communications systems and equipment. topic
Posted by bmrinell on 1 May, 2014 - 1:29 pm
Reading Data from a Scale with Quantum Unity Pro and 140 ESI 062 010 Card
Reading ASCII Data from Weigh Bin Scale with Quantum Unity Pro and 140 ESI 062 010 Card
Application Questions and Problems topic
Posted by Muthu on 1 May, 2014 - 1:07 pm
DCS Clock Malfunction
Can the malfunctioning of the GPS clock trigger the ESD bits and shutdown the running plant?
Engineering and workplace issues. topic
Posted by MJ on 1 May, 2014 - 6:43 am
EEx 'd' or IS
What are the criteria in deciding between EEx 'd'/'e' and Intrinsically Safe?
Sensor technologies. topic
Posted by tapas on 1 May, 2014 - 5:27 am
how to detect over pressure
Sensor for detecting if pressure is out of 4 to 6 bar inside a pneumatic pipe
Continuous process industries, DCS questions. topic
Posted by Fred Ramos on 30 April, 2014 - 11:19 pm
Formula for Chemical Dosing
formula to use for Calcium Nitrate concentration?
Communications systems and equipment. topic
Posted by MrChampion on 30 April, 2014 - 7:14 pm
how to send floating point numbers using the ModbusRTU protocol?
how to send floating point numbers using the ModbusRTU protocol?
Sensor technologies. topic
Posted by WSNIA'14 Organizing Committee on 30 April, 2014 - 11:11 am
Wireless Sensor Networks for Industrial Applications Workshop (WSNIA'14) Call for Papers, Due on May 30th, 2014
Call for Papers/Posters: 2014 International Workshop on Wireless Sensor Networks for Industrial Applications (WSNIA-2014), August 17-20, 2014, Niagara Falls, Ontario, Canada.
Software, including programming, OS issues, etc. topic
Posted by Bob Peterson on 30 April, 2014 - 9:29 am
Linux Ethernet/IP Driver
How to use Red Hat Linux to collect data directly from Allen-Bradley CompactLogix PLCs?
Engineering and workplace issues. topic
Posted by HH on 30 April, 2014 - 7:36 am
Beginner in HAZOP study
What standards and codes are there for HAZOP?
Power generation equipment control. topic
Posted by Danish on 29 April, 2014 - 4:43 pm
Transmission line safe distance from Gas Vent tower
220 KV transmission line safe distance from the Gas vent tower.
Power generation equipment control. topic
Posted by Krishna on 29 April, 2014 - 2:25 am
Ratchet fails to brake Frame-5 Gas Turbine
Ratchet motor with cooldown ON fails to brake the Gas Turbine rotor.
Human-Machine Interface and SCADA. topic
Posted by Anthony Porter on 28 April, 2014 - 6:45 pm
ABB / Bailey Conductor NT
Upgrading from Conductor NT 6.0 to Symphony Plus?
Computers in manufacturing; also hardware discussion. topic
Posted by Rudi on 28 April, 2014 - 11:16 am
Converting an Integer to S5Time in Access
Need to convert a integer in access or SQL to a S5Time format
Engineering and workplace issues. topic
Posted by farhan on 28 April, 2014 - 9:07 am
Boiler Drum Level
Boiler Drum Level measurement/securities
Power generation equipment control. topic
Posted by Shaker Hashlan on 28 April, 2014 - 5:56 am
OSI PI Engineering units conversion in GE Control System
Stuck with the US engineering units
Communications systems and equipment. topic
Posted by Chandler Chen on 28 April, 2014 - 4:48 am
Communication between INTOUCH and ABB ACS550
INTOUCH ABB ACS550
Engineering and workplace issues. topic
Posted by Michael Kruger on 28 April, 2014 - 3:43 am
2-car train system on inclined plane
State equations of a 2-car train connected with spring on an inclined slope.
Human-Machine Interface and SCADA. topic
Posted by Mostafa Qasemi on 28 April, 2014 - 1:10 am
Call up group trend in Honeywell Station
When calling up a group trend in Honeywell station pushbutton in HMI it does not go to correct group.
Power generation equipment control. topic
Posted by Adeel Imtiaz on 28 April, 2014 - 12:04 am
Vibration Trip
Vibration probes wire disconnection effect.
Power generation equipment control. topic
Posted by Jack on 27 April, 2014 - 8:36 pm
Transformer Multiple Grounding
Paralleling Transformer earthing connection
Continuous process industries, DCS questions. topic
Posted by MattQ on 27 April, 2014 - 2:33 pm
Comparing steam flow and feedwater flow
Looking to find out how a comparison of feedwater flow and steam flow is made.
Power generation equipment control. topic
Posted by Ahmed samy on 27 April, 2014 - 7:08 am
GSM Protocol and MARK VI
GSM connection between mark VI and Ovation
Local and wide area networking in factory automation. topic
Posted by PC Tan on 27 April, 2014 - 6:51 am
Does IEC61511 allow an ESD system on a control network?
Does IEC61511 allow an ESD system to be resident on a control network?
Programming languages. topic
Posted by Mostafa Qasemi on 26 April, 2014 - 12:30 pm
Honeywell scrip language
How can we learn Honeywell Scrip language?
PLCs and related questions. topic
Posted by Kamil ozkan on 26 April, 2014 - 1:04 am
Modicon M340 TCP Communication
Communication between Modicon M340 PLC and Weintek HMI via MODBUS TCP
Motion control, servos, steppers, etc. topic
Posted by Sweta on 25 April, 2014 - 5:13 am
Comparing the model of BLDC with a real BLDC motor
Where do I start to compare a model of bldc motor with a real one?
Power generation equipment control. topic
Posted by Santanu on 25 April, 2014 - 2:09 am
Distance Protection
What is the principle of operation of Distance Protection?
Power generation equipment control. topic
Posted by Santanu on 25 April, 2014 - 2:06 am
Under frequency protection of Generator connected to infinity bus
Why are there under frequency or over-frequency protection trip in Generator connected to infinity bus?
Power generation equipment control. topic
Posted by Napster225 on 25 April, 2014 - 12:50 am
Flame stability
Significance of flame profile
The Business of Automation and Control topic
Posted by Jim Pinto on 24 April, 2014 - 8:24 pm
JimPinto.com eNews 25 April 2014
The latest JimPinto.com eNews is on the web
Software, including programming, OS issues, etc. topic
Posted by lalas on 24 April, 2014 - 3:54 pm
OPC tags stop updating...start once the tags are added again
Using an OPC client, the values stopped updating after a while (20 days).
Engineering and workplace issues. topic
Posted by S D Jana on 24 April, 2014 - 3:37 pm
Water Treatment Plant Iconic Load
DM stream ionic load is lower than design in water treatment plant
Power generation equipment control. topic
Posted by GE on 24 April, 2014 - 12:38 am
HP & LP speed in GE gas turbine
What is the difference between HP & LP speed
Communications systems and equipment. topic
Posted by rajesh patil on 23 April, 2014 - 2:28 pm
Modbus mapping registor reading at register plus 1
why the modbus mapping register is visible at register address +/- 1 address.
Power generation equipment control. topic
Posted by kwaku on 23 April, 2014 - 10:22 am
Mark Vie PPDA IO Pack Fault
PPDA I/O pack on PDM card faulty?
Local and wide area networking in factory automation. topic
Posted by dodgeybro on 23 April, 2014 - 6:33 am
Modbus Converters
Modbus Gateway v's Modbus Servers and Protocol converters.
Engineering and workplace issues. topic
Posted by Kamran Shamim on 23 April, 2014 - 2:58 am
Bently Nevada axial vibration due to lightening strike
Technical query - Bently Nevada axial vibration due to lightening strike
PLCs and related questions. topic
Posted by HAIRI on 23 April, 2014 - 1:48 am
Triconex system
What happens when Triconex system CPU fails?
Software, including programming, OS issues, etc. topic
Posted by rizki on 23 April, 2014 - 12:55 am
How To connect Vijeo citect with Untiy Pro XL
help me to connect Vijeo citect and unity pro xl
Sensor technologies. topic
Posted by Michelle on 22 April, 2014 - 10:22 pm
Thermocouple readings problem
Took temperature readings with J thermometer but only had K type wire!
Power generation equipment control. topic
Posted by GRJS on 22 April, 2014 - 8:56 am
Winding Resistance Measurement - Delta Connected Transformer
Measuring winding resistance in a delta connected transformer.
PLCs and related questions. topic
Posted by Fatima on 22 April, 2014 - 8:29 am
S7 PLC as a MODBUS slave
would like to make S7 PLC as a MODBUS slave and a PC Master MODBUS
PLCs and related questions. topic
Posted by Bhadresh Sarvaiya on 22 April, 2014 - 6:49 am
Unity Pro communications
Need help for communication of NOE with M340.
Communications systems and equipment. topic
Posted by Hemant on 22 April, 2014 - 3:16 am
MODBUS Function code
MODBUS function code of address word
Sensor technologies. topic
Posted by Kazim on 22 April, 2014 - 12:56 am
Calculating LRV/ URV of a Bubbler Level System
How do you calculate the LRV and URV of a Bubbler type Level Transmitter?
Software, including programming, OS issues, etc. topic
Posted by SALIH SMA on 21 April, 2014 - 7:58 am
MODBUS COMPATIBILITY ISSUES WITH WINDOWS 7
We are facing problem with Modicon MODBUS Serial IO Server 7.5 (7.5.0.7) with win7 as compatibility issues.
Sensor technologies. topic
Posted by farzadad on 21 April, 2014 - 3:42 am
Dwyer flow switch information
dwyer obsoleted flow switch
Power generation equipment control. topic
Posted by BrownPaper on 20 April, 2014 - 11:34 am
Turbine Throttle Pressure and 1st Stage Pressure
Difference between throttle pressure and 1st stage pressure
Information resources, documentation. topic
Posted by Phil Corso on 20 April, 2014 - 11:30 am
Easter Greetings
Easter Greetings
Communications systems and equipment. topic
Posted by Ed on 20 April, 2014 - 2:40 am
Modbus via microcontroller
Communicating with device via Modbus RTU through a microcontroller.
Power generation equipment control. topic
Posted by Jose Sanchez on 19 April, 2014 - 10:58 pm
ACC Module on Mark V
Library for instrutions about the keypad on ACC Module in <R> <C> procesors
Software, including programming, OS issues, etc. topic
Posted by RAB on 18 April, 2014 - 6:41 pm
Upgrading Siemens PCS7 V 6.1
Can you plz suggest the best solution to upgrade Siemens PCS7 to latest version?
Power generation equipment control. topic
Posted by RAB on 18 April, 2014 - 6:27 pm
Formula for steam flow in venturi tube
Required exact formula to calculate flow in a venturi tube
Power generation equipment control. topic
Posted by BBSALO on 18 April, 2014 - 4:51 pm
exhaust spread
Why monitor the exhaust spread of a frame 9E gas turbine
Motion control, servos, steppers, etc. topic
Posted by Hans on 18 April, 2014 - 3:40 pm
Driving a Stepper Motor
I am seeking advice on the best methods to effectively control a stepper motor.
Continuous process industries, DCS questions. topic
Posted by Piedon on 17 April, 2014 - 9:58 pm
Do I Understand PID's?
Just want to see if I understand these things.
Software, including programming, OS issues, etc. topic
Posted by Centrafused on 17 April, 2014 - 8:04 pm
Software suggestions
New to automation and searching for a simple solution on some safety concerns.
Communications systems and equipment. topic
Posted by RKM on 17 April, 2014 - 3:15 pm
Communication between Speedac NXT weighing Controller and Honeywell Scada
Speedac NXT controller is not communicating with Honeywell Server via RS 485 serial communication.
Power generation equipment control. topic
Posted by NVS on 17 April, 2014 - 12:27 pm
Vitec Vibration probe
Installing Vitec 4033-500 in place of 4033-400 velocity transducer
Communications systems and equipment. topic
Posted by Srinivas on 17 April, 2014 - 11:02 am
ML1400 PLC communicate PIC 16f874 over modbus protocol
ML1400 PLC communicate with PIC 16f874 over modbus protocol and write data to LCD connected to microcontroller
Power generation equipment control. topic
Posted by Abhishek on 17 April, 2014 - 5:20 am
SynGas Conversion Project
Pointers for Syngas Conversion project in India
Motion control, servos, steppers, etc. topic
Posted by Biju CG on 17 April, 2014 - 4:10 am
Hall/Magnetic Sensor
Hall Sensor Replacement Failed !
Information resources, documentation. topic
Posted by Detlev Neumann on 17 April, 2014 - 4:09 am
Can I say my device is MODBUS-RTU compaible when.....
Could I say that with the following facts my device is MODUS-RTU compatible
Power generation equipment control. topic
Posted by Mahmoud Sallam on 17 April, 2014 - 12:00 am
Standard for temperature measurement
Location of temperature measurements (problems)
Power generation equipment control. topic
Posted by jamal on 16 April, 2014 - 4:15 pm
OT CALCULATION
OTC calculation
Communications systems and equipment. topic
Posted by Derek on 16 April, 2014 - 12:14 pm
MODBUS Break Condition & Checksum
MODBUS RTU using RS485 to RS232 converter connected to RS232 to USB converter to communicate with electric meter using MODBUS Poll.
Communications systems and equipment. topic
Posted by Franco Kew on 16 April, 2014 - 5:19 am
OPC server communicate with OPC server
How do one OPC server share data with another OPC server?
Software, including programming, OS issues, etc. topic
Posted by Jinali on 16 April, 2014 - 4:11 am
Serial Communication VB Code
Continuous reading of serial input
Communications systems and equipment. topic
Posted by SSU on 16 April, 2014 - 12:56 am
SCADA RTU in Substation
Why use SCADA RTU in a substation? What is the purpose of SCADA RTU?
Motion control, servos, steppers, etc. topic
Posted by Mahesh Thapaliya on 15 April, 2014 - 2:26 am
Medium Voltage Drive Variable Frequency Drive
Application of Medium Voltage Drive in industry to save energy, obtained desired output
Software, including programming, OS issues, etc. topic
Posted by Arun Kumar on 14 April, 2014 - 4:20 pm
UREA FLOW METER
What type of flowmeter can be installed in a Urea duct as a source of FD and ID fan in the duct?
Power generation equipment control. topic
Posted by Raymond Mpofu on 14 April, 2014 - 8:16 am
Siemens marshaling wire
Brand name of Siemens' 0.5mm thick marshaling wire
Software, including programming, OS issues, etc. topic
Posted by / on 14 April, 2014 - 1:14 am
Tag Prefix WinCC V7.2
Communicating with Tag Prefix WinCC V7.2 using MODBUS TCP/IP protocol.
Communications systems and equipment. topic
Posted by Zarar on 13 April, 2014 - 2:21 pm
DCS Yokogawa Communication Issue
Yokogawa DCS communication with Modbus slave device using ethernet redundant connection with ALE111.
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