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Forum Archive
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STD924 Honeywell DP Transmitter Calibration
Posted by bouzid on 20 August, 2018 - 9:05 am
Need help calibrating a Honeywell STD924 differential pressure transmitter.
3
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Perimeter Calculation of a Petroleum Tank
Posted by Uziar Akram on 20 August, 2018 - 8:56 am
Need the design equation or formula to calculate the perimeter, area or volume for a petroleum tank that is neither circular nor rectangular.
4
replies
Sizing RC Network for Contactor
Posted by SMF on 19 August, 2018 - 2:36 pm
Sizing a RC snubber circuit for a size 1 contactor.
7
replies
ph and Conductivity for Scrubber
Posted by bryan1978 on 19 August, 2018 - 1:03 pm
Why is there a need to have ph and conductivity reading for scrubber?
2
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Mark VI Comm Failure 1298
Posted by rahulgupta on 19 August, 2018 - 6:42 am
GE gas turbine Mark VI communications failure 1298
5
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Flame out on Low Engine Temp T5, Solar Taurus 60
Posted by S Mitra on 18 August, 2018 - 6:14 am
Solar Gas Turbine Taurus 60 machine tripping on 'Flame out on Low Engine Temp T5'
6
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Megohm Meter to Test Weld
Posted by Mark on 16 August, 2018 - 7:58 pm
If the weld is closed will I get OL signal?
2
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1756-L72 Control Tags
Posted by mahmoodi1 on 16 August, 2018 - 1:58 pm
Transfer tags from Excel spread sheet into 1756-L7x Controller Tags
DGP MEMORY LOSS
Posted by bensalomich on 15 August, 2018 - 6:20 pm
Generator Digital Protection (DGP) relay lockout lost its memory.
2
replies
ACS850 Motor Control Problem
Posted by jun05amar on 15 August, 2018 - 4:33 am
ACS850 Drive Motor Control Problem
2
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VCMI IO Error
Posted by HHernani on 14 August, 2018 - 1:47 pm
Intermittent flashing red to green and vice versa and one comm card is making noise...
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Siemens HMI Modbus RTU master communication crash
Posted by PS on 14 August, 2018 - 11:20 am
Siemens HMI TP1200 is Modbus RTU master. Modbus device cam controller is slave...
5
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DP Type Flow Transmitter on Vacuum Column
Posted by ranasushil on 14 August, 2018 - 3:10 am
We have DP Type flow transmitter on pump discharge and this goes to a column under vacuum. Production says flow is not correct.
3
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Sepam output 4-20 mA with PLC
Posted by Jemai on 11 August, 2018 - 4:42 pm
Reading Sepam S42 4-20 mA with PLC
Foxboro I/A 6.3 alarms
Posted by lyaponov on 11 August, 2018 - 5:27 am
foxboro I/A 6.3 message alarm configuration
7
replies
Book about Modbus?
Posted by NetworkMan on 10 August, 2018 - 10:31 am
Have written a draft for a book about Modbus, is there any interest in this?
6
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Phase to earth voltages are heavily unbalanced
Posted by sangeetha_ma on 10 August, 2018 - 1:58 am
When we run the DG with neutral ungrounded, the phase to earth voltages are heavily unbalanced. And it is changing during the course of running.
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Checking all the electrical wiring and equipment after flooding
Posted by sangeetha_ma on 10 August, 2018 - 1:54 am
Plug points were submerged. Water pump and motor etc were submerged.
6
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modbus RTU 485 2 wire
Posted by SUPMAN on 9 August, 2018 - 7:44 pm
no receive data from slave
1
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Custom Modbus Message
Posted by pcpro178 on 9 August, 2018 - 11:16 am
Custom Modbus Message
Fire Detection System Control Modules Suppliers
Posted by Mohamedibr752 on 9 August, 2018 - 9:23 am
We need a supplier for Hi-Safe Rack3 Fire detection system control cards/modules.
4
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Mark V Custom Counter
Posted by Mohamedibr752 on 9 August, 2018 - 9:21 am
Is it possible to create a counter for Starting System running hours counter ?
1
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PCDI vs CDA in Honeywell Experion
Posted by coep on 9 August, 2018 - 8:10 am
Difference between CDA and PCDI communication in Honeywell EPKS
1
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Repairing of MARK VI control modules
Posted by AMKIP on 9 August, 2018 - 7:37 am
We need to repair some of MARK VI control modules
7
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Rosemount transmitters
Posted by Amar DAMENE on 9 August, 2018 - 3:13 am
How to resolve the SATURATION Problem on Rosemount Transmitters
2
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Generator breaker question
Posted by awaiszaheer962 on 8 August, 2018 - 9:26 pm
Will machine go on over speed?
1
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Communication Beckhoff Trouble
Posted by Rafal123 on 8 August, 2018 - 4:43 am
AT doesn't see PLC
2
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Interlock, TRUE or FALSE
Posted by ipo on 8 August, 2018 - 4:20 am
When creating interlock, is true or false when device can work or move?
7
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Derivative Action
Posted by cliffo on 6 August, 2018 - 8:58 pm
Include or exclude derivative action in your PID settings?
How to send text to favorite editor without switching windows
Posted by camillelola on 6 August, 2018 - 5:32 am
How to send text to favorite editor without switching windows
3
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GE MK_V Turbine Not Responding to Load Command on Governor Control
Posted by automationdude on 6 August, 2018 - 3:19 am
Experiencing problems with a GE MK_V turbine control system. When load command reaches 63% while in governor control, load will not respond. Control has to be put in load limit mode to raise or lower load at this point.
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Ge 9fa Unit During Running Got Tripped Due To Mark Vi Chanel R And T Failure
Posted by amanat on 5 August, 2018 - 5:27 pm
Ge 9fa Unit During Running Got Tripped Due To Mark Vi Chanel R And T Failure (2 out of 3)
ir33 Carel with Modbus
Posted by John Ramirez on 5 August, 2018 - 12:18 pm
Carel ir33 refrigeration control unit with Modbus RTU
1
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Linear Motor/XY Table Brands
Posted by bdoubleu on 3 August, 2018 - 10:55 am
Looking for good brands of integrated linear motors/tables
1
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Any Standard or Guidelines for Spare Cores in Instrument Cables
Posted by YZ on 3 August, 2018 - 1:36 am
We want to know any specific code or standards that highlight the spare cores for the control and AI,DI, RTD and TC cables to be left inside control cables.
1
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Node Access Control
Posted by YarochkinMichael on 2 August, 2018 - 3:52 am
How to control access to Node
2
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Alternator Voltage
Posted by ataul on 1 August, 2018 - 7:53 am
What is the problem if run alternator less than required parallel cable in one phase.
Implementing MODBUS slave using just one Timer
Posted by Sheshil Shaji V Thomas on 1 August, 2018 - 5:19 am
Is it possible to implement MODBUS slave device using just one Timer?
OPC UA + CA
Posted by YarochkinMichael on 1 August, 2018 - 4:21 am
Best practice of using on CA in OPC UA?
3
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Download 100% Free 6 eBooks on "PLC"
Posted by Download 100% Free 6 eBooks on "PLC" on 1 August, 2018 - 1:59 am
Download 100% Free 6 eBooks on "PLC"
7
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MarkV Control System
Posted by shyam on 31 July, 2018 - 2:26 pm
LVDT .7 V adjustment procedure?
PGT10 / GE10B1 - Flashback During Acceleration (Mark VIe control)
Posted by moules_frites64 on 31 July, 2018 - 12:11 pm
PGT10 - GE10B1, Speedtronic Mark VIe (old SUVIMAC II removed in 2014). Since the Hot Path Inspection, the machine trip on Flashback at 5200 rpm.
2
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Modbus Star Topology
Posted by Izak on 31 July, 2018 - 5:58 am
Modbus Star Topology and resistor
6
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MicroLogix 1400
Posted by StoopidEngineer on 30 July, 2018 - 2:22 pm
Any truth to the rumors the MicroLogix 1400 is being phased out?
6
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Flame Failure : Frame 6B Machine
Posted by sunilak on 30 July, 2018 - 12:37 am
Frame 6 B machines; Mark Vie . DLN-1 system , synchronized with grid. Partload operation Flame failure in Premix steady state .
2
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Fr9E-seismic Vibrations
Posted by Yaseeen on 29 July, 2018 - 11:35 am
Fr9E seismic BB5/11 showing erratic reading in Mark VIe till alarm level
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GT Lube Oil Tank Water Contaminate
Posted by vkgupta on 29 July, 2018 - 12:26 am
Instruments affected in case of water contaminate observed inside Frame-V lube oil tank.
8
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Ladder Logic Help with Bit Shift Left
Posted by runescape on 27 July, 2018 - 6:22 pm
Having problems doing both a Bit Shift Left operation on an array, and editing the contents of the array.
Process Safety Time and Set pressure
Posted by Fereshteh on 27 July, 2018 - 7:42 am
Verify set pressure based on Process Safety Time
13
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Paralleling Generators
Posted by JeffersonAirplane on 26 July, 2018 - 4:31 pm
Field excitation and fuel consumption variations causes different behaviours in power generation when generators are in parallel or in single
Frame 5 Torque Converter
Posted by TheGingerbeer on 26 July, 2018 - 5:52 am
Turbine not accelerating past breakaway
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Crank Speed for Rapid Cooling
Posted by APOL on 26 July, 2018 - 3:16 am
Rapid Cooling Methods
Natural Gas Fired Boiler-Steam Turbine Basic Q&As
Posted by Venturathre on 26 July, 2018 - 2:48 am
12 year Power generation (wind turbines) power plant operator. Just made Control Operator - hoping to tap into the experience in this group to be better at what I do.
Geared Synchronous Generator Inertia Constant
Posted by carlosmelim on 25 July, 2018 - 2:34 pm
Inertia constant of a 1500 rpm synchronous generator with a 8304 rpm steam turbine prime-mover, both attached through a gear box.
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Ethernet to Serial and Back
Posted by Steve Williams on 25 July, 2018 - 9:26 am
I am looking to convert serial RS-485 to ethernet and then back again and need some hardware/software assistance on the back end
Axial Displacement Probe Calibration
Posted by ahm2 on 25 July, 2018 - 3:38 am
How to get linearity error from actual output voltage/displacement
5
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Mark VI Trip Log Question
Posted by KimmyS on 24 July, 2018 - 2:17 pm
I have a Mark VI turbine controls system with the windows seven update, and the trip logs quit running.
1
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GT 6FA AFPCS Value
Posted by vijaycontrol on 24 July, 2018 - 7:47 am
Why AFPCS value increasing during rain storm?
9
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Speedtronic MK5 - Frequency Deviations
Posted by DBONeill on 24 July, 2018 - 6:26 am
Preselected/Base/Peak load and droop response interactions.
Siemens Simatic S7 (PCS7)
Posted by Chris Guinan on 23 July, 2018 - 6:01 pm
Does Siemens' PCS7 support Structured text similar to Allen-Bradley?
Experion Modbus TCP/IP Scaling
Posted by FuzzyDunlop on 23 July, 2018 - 1:46 pm
Looking for a way to scale Modbus holding/input registers using the PCDI numeric array blocks.
1
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OPC Client for ABB PGP Server
Posted by bullediashiq on 23 July, 2018 - 1:36 pm
OPC Interface for ABB PGP Server on Bailey Infi-90 DCS
1
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Gas Fuel Heating Value
Posted by niazbibiyana on 22 July, 2018 - 10:03 am
Gas turbine efficiency calculation strategy.
6
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Fuel Consumption Issue for Gas Turbine 9fa
Posted by Mohamed nawar on 21 July, 2018 - 9:13 am
Why is fuel consumption at low loads is higher than base load on gas turbine frame 9fa?
3
replies
Piping & Instrumentation Diagram (P&ID) Analysis Tool
Posted by tsalama on 20 July, 2018 - 9:12 am
Developing an online tool for extracting information from PIDs
5
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Converting from %Weight to g/L
Posted by TylerDurden on 20 July, 2018 - 8:50 am
Existing devices measures concentrations in solution in %Wt units. I have question regarding converting it to g/L units.
1
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Modbus TCP/IP Experion C300
Posted by Jorge Sánchez on 19 July, 2018 - 7:25 pm
Is it possible to have a Modbus configuration through a port other than 502 in Experion PKS Honeywell?
Reset Ibb Error in ABB Ref 542plus
Posted by begou on 19 July, 2018 - 12:49 pm
The LED 'Ibb error' in HMI of ABB Ref 542plus stay red when i reset the modbus communication board.
2
replies
GE Control ST Software Version
Posted by Saif on 19 July, 2018 - 9:23 am
Using new control ST application program in older version
1
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Accuracy Definition
Posted by YSH on 19 July, 2018 - 12:07 am
Pressure transmitters vs flow meters
11
replies
PM3 G3 + Purge Lockout DLN26+
Posted by Chemsouhd on 18 July, 2018 - 7:26 am
lockout on PM3 Purge line, after a problem of 71pg fault DLN2.6+ (mkvie).
Function Read File Record (function code - 0x14) in Modbus Protocol Specification.
Posted by Evgeny Neruchek. Software Engineer on 18 July, 2018 - 7:16 am
Implementing a Modbus Master server using Modbus Protocol Specification and have some questions about function Read File Record (function code - 0x14).
7
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Automation Direct DL205 Thermocouple Error
Posted by birdcontrol on 18 July, 2018 - 5:50 am
Having issues with thermocouple signals connected to a DL205 PLC. All three are reading several hundred degrees high.
Modbus over HughesNet Dish
Posted by rhornung on 17 July, 2018 - 1:43 pm
Does anyone here have experience running Modbus TCP over Hughes Net?
6
replies
Markvie PDIO Module Failure
Posted by Mundodiyil on 17 July, 2018 - 5:35 am
Markvie Spare PDIO module comes with a sticker from GE to use with TDBTH2A
2
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Texas Instruments TI140 Error
Posted by dype0407 on 16 July, 2018 - 10:59 am
PLC texas Instruments Error 52E
2
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Induction Motor Starting with Soft Starter
Posted by sbhavendra on 15 July, 2018 - 12:23 pm
Induction motor used barring gear of STG is not getting rotate through soft starter even full voltage is applied by soft starter.
2
replies
PLC Remote Connection
Posted by McCaber on 13 July, 2018 - 6:24 pm
Info for remote connection to PLC
Interfacing B&R PLC with CP476 Central Processor
Posted by Nivin Clinton on 13 July, 2018 - 9:51 am
How to communicate between B&R PLC and B&R CP476 Central Processor
ABB AC450 PROFIBUS Interface to DIRIS Meters
Posted by wandere on 13 July, 2018 - 9:19 am
ABB AC450 PROFIBUS interface to Socomec DIRIS Meters
Virtualizing a Centum VP HIS Station?
Posted by James on 13 July, 2018 - 3:03 am
Exploring possibility of virtualizing a Centum VP HIS station in Vmware.
3
replies
Replacement Flame Scanner
Posted by peterman on 12 July, 2018 - 11:35 pm
Where can I get a replacement flame scanner?
2
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3 Phase Induction Motor Connection
Posted by sushant on 12 July, 2018 - 8:48 am
Is it possible to start a motor with a Delta connection in star configuration?
Loading an Existing Program onto PLC Melsec F2 40MR
Posted by mariyatr on 11 July, 2018 - 10:32 am
What interface/software I need to load existing program (kept on my pc) onto an old PLC Melsec F2 40MR?
2
replies
GE 9HA DLN 2.6+ Combustion Modes
Posted by AbdulRehman on 11 July, 2018 - 8:11 am
Differences between DLN 2.6+ combustion modes
2
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Motor Grease
Posted by rajeshmec on 11 July, 2018 - 5:55 am
Differences between motor grease
Gas Turbine SFC Trip
Posted by Mahesh on 11 July, 2018 - 4:17 am
During starting sequence at around 49% speed SFC trips on HW Control trip.
1
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Profinet or Modbus communication with Wonderware without using PLC
Posted by AnJ on 10 July, 2018 - 12:08 pm
I have to connect Sentron PAC and IO-link from IFM to a computer with Wonderware without using PLC. And I don't know where
Setting up an "Engineering Repository"
Posted by Anto2018 on 10 July, 2018 - 10:35 am
How to set up and organize a shared drive where shared information can be stored in manageable way.
1
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How Does 1N4001 Diode Work?
Posted by circuit12 on 10 July, 2018 - 6:38 am
Working on a battery powered circuit that uses a 1N4001 diode
3
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Steam Turbine Flow Factor
Posted by Tomas Eduardo on 9 July, 2018 - 2:14 pm
What does Steam Turbine Flow Factor at HP First Stage refer to?
20
replies
MARKVIe Modifications
Posted by k000 on 9 July, 2018 - 1:13 pm
Why SP1 is calculated differently in markVIe?
Intellution/Fix 32 and HASP4 Basic Questions
Posted by mattD on 9 July, 2018 - 10:55 am
Hard drive from 2005 crashed, trying to figure out licenses. HASP4, Aladdin, Intellution, Fix32
REL 511 Configuration
Posted by hasan karimi on 9 July, 2018 - 6:00 am
Can not get ABB REL 511 configuration
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Adding an Output Card to S7 300 PLC
Posted by I&C Engineer Ahmed K. Yaseen on 9 July, 2018 - 3:17 am
Looking for advice on adding and programing an output card
REF Operation on Earth Fault in Transformer Secondary
Posted by Rajat_93 on 8 July, 2018 - 12:33 am
Confused regarding the effect on secondary current of Transformer in case if in zone earth fault.
11
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Trying To Find a 4 Wire Pressure Transducer
Posted by Rob Armstrong on 7 July, 2018 - 10:07 pm
Desperately trying to find a replacement pressure transducer!
4
replies
AHOP Starts During Fuel Changeover in Frame-III
Posted by barindra75 on 6 July, 2018 - 10:25 pm
During fuel changeover from NG to HSD AHOP starts
1
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Recommended Tool List For Gas Turbine Frame 5 Overhaul
Posted by Meaaam on 6 July, 2018 - 5:18 am
Minimum recommended tool list used for major overhaul to Gas turbine Frame 5
1
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Communicating with STN Atlas Geamar 120ISL/Lyngsoe Marine
Posted by simpa on 5 July, 2018 - 12:48 pm
Looking for a way to communicate with Geamar 120ISL from STN Atlas. Built 1999.