Today is...
Saturday, October 1, 2016
Welcome to Control.com, the global online
community of automation professionals.
Featured Video...
Featured Video
EtherCAT with CTC’s master lets your multivendor network play well together...
Our Advertisers
Help keep our servers running...
Patronize our advertisers!
Visit our Post Archive
Forum Archive
8
replies
Modbus RTU with Grain Watch System
Posted by Archimedes on 11 August, 2016 - 1:37 pm
Modbus master appears to communicating from Modbus Poll to network controller (slave), but the slave is not returning any information.
4
replies
S7-1200 Modbus
Posted by Barbican on 11 August, 2016 - 12:59 pm
Reading data from DSE genset controller via Modbus using S7-1200 by siemens
1
reply
Running Centum VP in a Virtual Machine
Posted by mudassir_mehmood on 11 August, 2016 - 7:19 am
Minimum requirements for running Centum VP R6.03.00 software in a virtual machine.
1
reply
ATEX Classification
Posted by Leunbach on 11 August, 2016 - 4:39 am
For ATEX Ex certification, is the barrier/isolator included in the equipment when the ATEX marking is: Ex ia d IIC?
1
reply
Establishing RsLinx OPC Connection via VB
Posted by AB-PLC on 10 August, 2016 - 2:55 pm
Looking for links to a tutorial on how VB can establish connection to the Allen Bradley PLC 5/05 OPC RSLinx.
7
replies
Leading and Lagging Power Factor
Posted by Poornimah on 10 August, 2016 - 11:50 am
What is the difference between power factor 0.85 lagging and 0.85 leading?
3
replies
VFD Pumps Flow Control Using One PID
Posted by khalid313 on 9 August, 2016 - 1:01 pm
I am facing a problem with a PID controller that controls more than one VFD pump.
2
replies
Power System Stabilizer
Posted by shanks on 9 August, 2016 - 12:34 pm
Power system stabilizer and its application
1
reply
Installation Honeywell Experion PKS
Posted by christa on 9 August, 2016 - 5:50 am
Looking for installation manual for Honeywell Experion PKS
Infi90 IMASO01 Delivering > 20mA After Power Outage
Posted by rogerval on 8 August, 2016 - 9:12 pm
Infi90 IMASO01 analog output modules deliver > 20mA after system came back up from a power blackout.
12
replies
Modbus Router
Posted by ModbusChris on 8 August, 2016 - 2:26 pm
Is there a hardware (ideal) or software (fallback) solution to read via Modbus TCP from several servers and give out the gathered data on a single IP address?
1
reply
Siemens SGT-600
Posted by Naser_n on 8 August, 2016 - 8:19 am
IGV function
ABB MasterNet
Posted by izadi_i on 8 August, 2016 - 4:21 am
ABB MasterNet User's Guide
2
replies
Foundation Fieldbus
Posted by TG on 8 August, 2016 - 2:35 am
Fieldbus Device Communication error
Electronic Speed Control
Posted by Mikert on 8 August, 2016 - 1:11 am
How to build an ECS for a fisher paykel motor to power a quad copter?
5
replies
IGV Control Trouble Trip
Posted by Mohamedibr752 on 7 August, 2016 - 3:03 am
A gas turbine MS 5001PG (MKV) tripped on the alarm "INLET GUIDE VANE CONTROL TROUBLE TRIP".
1
reply
Cement Silo Level Measurement
Posted by sonutomy on 6 August, 2016 - 7:46 am
Cement silo level
3
replies
Remote GT Operation Modbus or Ethernet or Controlnet
Posted by hany5757 on 5 August, 2016 - 9:30 pm
Is there any limitation /standard/best practice for using Modbus for controlling GT from DCS or remote station??
9
replies
Earth Fault Tripping while Starting
Posted by Vinay5794 on 5 August, 2016 - 12:49 pm
A 315 kW 6.6kV fed compressor which is used to share load with another similar motor is frequently tripping on earth fault while starting.
1
reply
Tilt Pad Bearings
Posted by Mark Davis on 5 August, 2016 - 5:43 am
Oil pressure and flow on tilt pad bearings
10
replies
Zeroed Starts Counters and Total Fired Time Mark V
Posted by ControlGT on 4 August, 2016 - 2:16 pm
Trying to understand why starts counters and Total Fired Time Mark V zeroed out.
4
replies
VFDs Current
Posted by nvrsrinivas on 4 August, 2016 - 12:31 pm
What is the relation between input current and output current in a VFD?
2
replies
Ex ia and IECEX Flameproof, ATEX Flameproof, CSA/US-Exp.
Posted by Sudesh G on 4 August, 2016 - 8:11 am
can we use IECEX Flameproof, ATEX Flameproof, or CSA/US-Exp device instead of Ex ia rated device for Zone 1?
3
replies
Simulation Device for Turbine Overspeed
Posted by Genersi on 4 August, 2016 - 12:05 am
Looking for simulation device for turbine overspeed
1
reply
Possibility of Interchanging Stahl with Pepperl+Fuchs
Posted by OmoG on 3 August, 2016 - 2:26 pm
Failed Stahl 9160/13-11-11 and no have a spare. Have a Pepperl+Fuchs KFD2-STC4-Ex2. Any idea if they are interchangeable?
3
replies
Momentum Status
Posted by Krikoman on 3 August, 2016 - 6:47 am
Modicon Momentum 171 CCs 780 00 "Status" block
Plant Capacity Factor VS Capability Factor VS Load Factor
Posted by raynvd on 3 August, 2016 - 5:07 am
Descriptions and equations/formulae for these 3 terms in a power plant Capacity factor, Capability factor, and Load factor
6
replies
480V Split Phase / 400V Threephase (AUS)
Posted by Teps on 3 August, 2016 - 4:59 am
Desiging a System for a Property with 2 phase (480V) Power. I need to hook up a three phase 230/400V Genset.
Role of Nanosensors and Internet of Nanothings in industrial Automation
Posted by Rushi Shroff on 2 August, 2016 - 1:38 pm
Loking for information on Nanosensors and Internet of Nanothings in industrial Automation
1
reply
AB Contrologix Controller w/ Multiple ProSoft ProfiBus Modules
Posted by Arch21 on 2 August, 2016 - 10:36 am
Performing Due Diligence and need feedback concerning utilizing ProSoft ProfiBus Modules in a Redundant I/O Configuration.
1
reply
CO2 Purging from Generator
Posted by kermani on 2 August, 2016 - 9:17 am
CO2 left in generator after maintenance. Is there a standard for purging it?
Compressor Online Washing with Detergent
Posted by hanafi on 2 August, 2016 - 12:45 am
Compressor online washing with detergent?
6
replies
Beckhoff PLC MODBUS RTU
Posted by Erol2309 on 1 August, 2016 - 4:38 am
Problems reading data from flow computer using Modbus FC3
2
replies
How to Change Signal Name in SpeedTronic Mark IV
Posted by tokiemnhiet on 1 August, 2016 - 2:57 am
Changing signal name in Gas Turbine control Speedtronic Mark IV
2
replies
What Does GEK Stand for?
Posted by er_dhaval on 31 July, 2016 - 8:40 am
GE documents have many documents with the identical number that starts GEK. Can anyone explain what GEK means?
1
reply
Normal and Droop Mode on an "Island" Grid
Posted by Mikey15 on 31 July, 2016 - 7:15 am
Questions on the the operation of parallel generators in and "island" grid
Is Any Reputed Automation MNC Having Innovation, Research & Developments Centers in India
Posted by Rushi Shroff on 31 July, 2016 - 12:44 am
innovation, research & developments centers for Automation & Process control in India
4
replies
Frame 6B Trips on Exhaust Overtemperature During Start Up at 33% TNH
Posted by nic123 on 31 July, 2016 - 12:08 am
Our Frame 6 GT# tripped on exhaust overtemperature during cold start at 33% TNH. After restarting the unit, nothing abnormal was found, exhaust spread was also OK and the unit ran as it should. We cannot figure the cause of this problem.
Different Conditions of Turbine Operation
Posted by saqi on 30 July, 2016 - 7:12 am
Can someone explain me different conditions of steam turbine operation that what exactly these are??
5
replies
Frame 6b Fuel Control Problem
Posted by davidmcc on 30 July, 2016 - 3:19 am
Fuel control and combustion OK at fire but when auto selected drastic swings in liquid fuel servo and lots of white smoke
15
replies
Modbus RTU Siemens and Rotork Valves
Posted by Hamid Ankouti on 30 July, 2016 - 2:44 am
I have Modbus receive error (0830) in cp341 diagnostic buffer. When I sent request for command and status to MOV Master Station (Rotork Valves).
2
replies
Flame Fail Problem in SGT200 Gas Turbine
Posted by shzcity on 30 July, 2016 - 1:38 am
SGT200 Turbine Trip with flame fail message
5
replies
Supplying a Power Supply
Posted by cuckman on 28 July, 2016 - 7:55 pm
Do i need a control transformer or not?
12
replies
Low Lube Oil Bearing Header Pressure
Posted by flow on 28 July, 2016 - 6:45 am
on our GE MS5001 gas turbine, bearing header pressure about 2.1bar when auxiliary pump is running but it is 1.5bar when main lube oil pump is running.
2
replies
Windows 10 Impact
Posted by ICPDASUSA on 27 July, 2016 - 3:26 pm
Sharing WINDOWS 10 impact on Automation and SCADA systems.
Edit <I> Screens on PC without idos
Posted by waltrobinson on 27 July, 2016 - 12:01 pm
View and edit screens used on the old <I>'s running idos on my laptop, which can not run idos.
2
replies
PLC Firmware Upgrades
Posted by Denson on 27 July, 2016 - 11:54 am
Why are some PLC manufactures saying to keep the PLC power on while upgrading the firmware?
1
reply
Mark IV GE Gas Turbine Generator Reverse Power
Posted by GTENGCI on 27 July, 2016 - 11:30 am
Frame 5P Gas Turbine Generator Reverse Power due to T Computer Problem & FSRACC Computer "S" sometimes drop below FSNL FSR
2
replies
SSRS with SCADA
Posted by pouya on 27 July, 2016 - 9:15 am
Is it possible to use RDL or RDLC report files in SCADA?
Transformer Vector Group
Posted by skalpesh on 27 July, 2016 - 2:22 am
What is transformer vector group? Why is it needed?
3
replies
MARK IV Modbus
Posted by Genersi on 26 July, 2016 - 12:25 pm
Looking for some advice on how to connect to Modbus from a DOS screen
3
replies
Troubleshooting Blower Shutdown
Posted by y1yp on 26 July, 2016 - 11:04 am
I have a bank of 12 blowers that all shut down every other Tuesday morning at about 7AM. when they shut down there is no alarm and they don't need to be reset to restart. I am lost for how to continue troubleshooting.
4
replies
Closing to a Dead Bus
Posted by adexgenerator on 25 July, 2016 - 8:59 am
We have a GE frame 9E in our site that is not designed for closing to a dead bus. We want to find out the criteria needed to achieve this.
4
replies
Horizontal Pitch in a Spiral
Posted by Biky on 25 July, 2016 - 2:42 am
Need some information about the horizontal pitch in a spiral for the placement of sensors in the oil tank.
FREE AB DF1 Serial Slave Simulator
Posted by Mark on 24 July, 2016 - 10:19 pm
Today we released a FREE AB DF1 serial slave simulator.
2
replies
RTD Temperature Spikes and Erratic Readings
Posted by Ahmed Ali Khan on 24 July, 2016 - 8:37 am
Temperature Spikes observed in RTD Readings
Steam Turbine Bypass Valve Vibration
Posted by GeorgePat on 22 July, 2016 - 8:36 am
Description of a vibration problem related to a steam bypass valve
6
replies
Cold Junction Compensation in GE IC200ALG630 Thermocouple Card
Posted by Ahsan Ejaz on 22 July, 2016 - 8:11 am
Implementation of remote Cold Junction Compensation in GE Versamax IC200ALG630 Thermocouple Card.
4
replies
Alternative Way to Ground a Delta System
Posted by Barbican on 22 July, 2016 - 7:58 am
Delta system ground fault detection methods
2
replies
Vibration reading LOW on MkVI and HMI
Posted by NGdave on 22 July, 2016 - 7:46 am
Proximity Probes are reading 2-3 times lower in the MkVI and Cimplicity HMI than was is being injected during testing.
4
replies
AB PLC and Siemens PLC
Posted by tomz123 on 22 July, 2016 - 6:32 am
Similar products between AB PLC & SIEMENS PLC
1
reply
Modbus RTU RS485
Posted by Gary Wilson on 21 July, 2016 - 11:35 am
Siemens HMI to Emerson Drive via Modbus RTU Communication
1
reply
Ratio of Analog Input to Output - DCS
Posted by Jonathan Law on 21 July, 2016 - 6:59 am
Could anyone give me guidance into the ratio of Analog Input channels to Analog Output channels in an averaged sized DCS implementation.
SGT-100 or Typhoon Turbine Temperature Control Scheme
Posted by John_Fitzmaurice on 21 July, 2016 - 2:36 am
Does anyone have any information on the SGT-100 or other similar siemens turbine's temperature control scheme?
3
replies
Data Acquisition Software
Posted by Newton on 20 July, 2016 - 10:26 am
Looking for data acquisition software
2
replies
Convert Decimal to Integer
Posted by Hamid Ankouti on 20 July, 2016 - 7:49 am
How can i convert decimal type (0-100) to integer (0-32768)?
4
replies
ABB INFI90 BRC100 ROM Checksum Error..
Posted by aeiour on 20 July, 2016 - 6:09 am
How to rectify BRC 100 ROM checksum error?
Heating Steam Block Valve
Posted by judd690 on 20 July, 2016 - 2:25 am
When does the Heating steam block valve open and close on a steam turbine?
2
replies
GE Frame-9E
Posted by muz_sindhu on 20 July, 2016 - 12:11 am
Preservation of GE FRAME-9E.
Medium Voltage VFD Drives for Sugar Mills and Cement Mills
Posted by Jerrysong0001 on 19 July, 2016 - 10:29 pm
I am working on the projects about MV VFD drives for sugar mills and cement mill motor control, for energy saving and process reform.
Medium Voltage Variable Frequency Drive for Motor Frequency Control
Posted by Jerrysong0001 on 19 July, 2016 - 9:58 pm
Doing research on medium voltage Variable Frequency drive (also called as VFD, VSD, AC drive, VVVF, etc.)
1
reply
Tracing Communication Errors in a Modbus Concentrator
Posted by IggyR0ck on 19 July, 2016 - 2:49 pm
Best practice to show a communication error in a Concentrator to a Scada/HMI using Modbus
IO Scanning/Write_VAR
Posted by jing88 on 19 July, 2016 - 11:03 am
Advantage and disadvantage of Write_VAR from I/O scanning?
5
replies
Weighing Scale Load Variation
Posted by sreevinsreenivas on 19 July, 2016 - 2:48 am
Weighing scale shows 1302g without any load
Isentropic Efficiency
Posted by shahid on 18 July, 2016 - 5:26 pm
Turbine isentropic efficiency calculation if steam in/out is superheated?
5
replies
Diplacer Level Transmitter Viscosity Limit
Posted by Elmira on 18 July, 2016 - 7:52 am
Wondering about the viscosity limit for displacer level transmitters.
9
replies
IGV Does Not Reach Minimum Operating Angle After Offline Compressor Washing
Posted by se_lain on 17 July, 2016 - 11:11 am
IGV does not reach minimum operating angle after compressor cold washing and the hydraulic oil pump stops (on AUTO) while the IGV is stuck at 40 DGA. I believe it has something to do with the lube oil pressure going down.
5
replies
Capitalizing PLC Addresses
Posted by mengland1383 on 17 July, 2016 - 8:14 am
I have a dumb question about PLC addressing
4
replies
Torque Converter Filter Type
Posted by Ahmed on 17 July, 2016 - 3:25 am
Looking for information about torque converter filter properties for GE Frame 9E
1
reply
9E Trip at Shutdown
Posted by Jolek on 16 July, 2016 - 9:08 pm
After giving a STOP command turbine is when trying to transfer from PREMIX to LEAN-LEAN with FAILURE TO REIGNITE PRIMARY ZONE
6
replies
GE MS5001 Machine
Posted by VJ on 16 July, 2016 - 2:36 am
AHOP in MS5001 machines and what is the back up of MHOP?
Siemens Distributors in South Asia
Posted by DCpower on 16 July, 2016 - 1:01 am
Looking for Siemens 7KG6000-8AA/MM and 7KG6104-1SN21 distributors in Indonesia or nearby country
3
replies
Service Release 1 (SR1) Concept 2.6 XL English
Posted by Rzr on 15 July, 2016 - 10:32 am
Looking for Service Release 1 (SR1) for Concept 2.6 XL English
3
replies
Difference Between Sensor with HART and Beamex
Posted by Muhannad on 15 July, 2016 - 4:58 am
Difference between calibrating a sensor using Beamex and calibrating the same sensor using HART communicator?
9
replies
Servo Valve Current
Posted by yaseeeen on 14 July, 2016 - 3:54 pm
Servo valve current when controlling hydraulic flow in servo valve
1
reply
Button FAST on the Operator's Keyboard TDC3000
Posted by Yacine1982 on 14 July, 2016 - 6:18 am
Meaning or use of Button FAST on the Operator's Keyboard TDC3000
1
reply
Mounting IR LEL Detectors
Posted by azadkirti on 13 July, 2016 - 12:49 pm
IR base LEL detectors mounting impact.
1
reply
Safety Category
Posted by IvanJoseph on 12 July, 2016 - 9:43 pm
Difference of Safety Category 2 and 3
RS485 Fail Save Biasing
Posted by Harvard07 on 12 July, 2016 - 6:55 pm
RS485 Fail Safe Biasing Moxa IA5450A and NPort 6450
Flowmeters for Measuring Dusty Waste Gases
Posted by MaxMendez on 12 July, 2016 - 12:53 pm
Flow meters to measure Dusty waste gases in a steel mill
2
replies
DCS-Mark V Communication
Posted by fnc on 12 July, 2016 - 10:02 am
DCS to Mark V communication problems, not definite points
2
replies
Counter for Footage
Posted by river100 on 11 July, 2016 - 11:57 am
Need a count/pulse per foot
1
reply
Problem in Velocity Sensor in Gas Turbine
Posted by sanjib_dibrugarh on 11 July, 2016 - 2:54 am
Problem on Velocity sensor of Matrix 5485C.
3
replies
Power Factor
Posted by javali on 10 July, 2016 - 10:32 am
Power factor control
Testing PCS 095 Communications
Posted by JAGS on 10 July, 2016 - 6:31 am
Can someone tell me how to test the PCS 095 communications RS485 using a PC with a same port (Rs485)?
8
replies
DC Supply Problem
Posted by Ud on 8 July, 2016 - 4:20 pm
DC supply problem at power plant
2
replies
Modbus TCP bBaud Rate
Posted by chodj99 on 8 July, 2016 - 1:17 am
Question about Modbus TCP baud rate (communication speed)
1
reply
Gas Turbine Atomizing Air Filter Differential Pressure
Posted by overtemp on 7 July, 2016 - 2:37 pm
I'm trying to determine the correct alarm set point for the atomizing air filter differential pressure for a GE FA.
4
replies
Automating a Workcell Robot
Posted by oli268 on 6 July, 2016 - 12:56 pm
After our integrator failed miserably to do his job, I was tasked by my boss to integrate a Fanuc robot into our CNC line.
5-95% RH Non-condensing Hydrocarbon IR Detectors
Posted by azadkirti on 6 July, 2016 - 7:00 am
5-95%RH non-condensing IR based hydrocarbon gas detectors (LEL)