In frame-9E we are receiving bleed valve trip from the top two bleed valve limit switches due to faulty switches.
By CuriousOne on 6 May, 2015 - 9:03 pm
Good advice CSA, If one has a MK5 or below, a positive 125 VDC contact is needed. I have...
on 6 May, 2015 - 10:16 am
G.Rajesh, You are free to use any switch, including a non-contact proximity switch, as long as...
Water Line Pressure Transmitter Elevation
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
Looking for a less expensive force sensor like the Burster bending beam load cell model 8510-5002 to use with Digiforce 9306
Bently Nevada probe gap adjustment
How to configure the gap for the BN probes in the MKV and MKVI panels
Unable to Read Meters (MODBUS RTU) on PCVUE 8.10
Unable to read Meters (MODBUS RTU) on PCVUE 8.10. It was working fine before reinstalling the PCVUE 8.10
ISA's MODBUS CAP Question
ISA's Modbus CAP question fails
By Dick Caro on 4 May, 2015 - 4:34 pm
> ISA's Modbus CAP question fails with a grade of F This comment by David F exhibits his...
HART protocol: Digital signal or analog signal family?
Honeywell ST3000 Pressure Transmiter Fault
Honeywell ST3000 Pressure Transmitter sends more than 20 mA while the pressure is normal.
Yokogawa CentumPV, CS3000, Write Tag Data from DOS Prompt
How to write tag data from the DOS prompt on a Yokogawa CentumVP or CS3000 DCS.
Problems with Speed Bypass Valve Not working
Speed bypass valve LFBV(65FP-1) not not moving when changing from gas to liquid fuel.
on 6 May, 2015 - 10:31 am
Inst2015GE, I wish to inform you that it's only necessary to have current flowing through a...
on 3 May, 2015 - 12:20 pm
Inst2015GE, There's' another thing which I've seen occur recently, and that is that if there is...
Need a Brief Introduction of ARES Model
Can someone give a brief introduction of ARES model?
on 6 May, 2015 - 9:57 am
Neo, Unless I have an opportunity to work on a unit with MBC-based control, I'm not going to be...
on 5 May, 2015 - 2:24 pm
Neo, 1) Although I just recently received a printed copy of a GT Mark VIe running MBC I haven't...
Software to Automatically Test PLC Programs
Can any one suggest any tool to automate test for our programs? We are currently using CodeSys 2.3 platform.
I term in PID controllers
the I term in PID controllers - integral time and/or reset time?
By pvbrowser on 6 May, 2015 - 2:55 am
What you need to know is the transfer function of the controller in the frequency domain. The...
Profibus communication problem between Beckhoff IPC and Siemens PLC
An IPC connected to a Siemens PLC as a slave module. When I restart the PLC while IPC running then PLC can't find the IPC hardware on the Profibus network.
Control Diagram Design and Testing
What software should I use to simulate a control diagram to see the performance?
Pneumatic Shutdown Valve Pressure
Pneumatic Shutdown valve actuators are sized for minimum pressure 5.5 BARG,(80 psig)
on 5 May, 2015 - 2:42 pm
I'm having trouble understanding the problem. Minimum pressure doesn't mean it always has to be...
Monitoring Liebert DS Crac
Monitoring a Liebert DS Crac using MODBUS.
By Helen on 5 May, 2015 - 12:16 am
Hi. The address is not important for MODBUS/TCP devices. Try to specify 01. Also you may find...
Looking for alternative OPC Server for Yokogawa Centum VP DCS
By shibu on 5 May, 2015 - 1:53 pm
I am trying to do the same thing with Ignition server. > Has anyone run across an alternative...
HINET Modbus DDE SERVER 2014
HINET ModBus DDE SERVER 2014,
By Heru Iqbal on 5 May, 2015 - 12:32 pm
After 459 days, finally there is one member who response to this thread. Thank you very much.. ...
Safety analogue signal set point handling.
Calibrating and Correcting Errors on a Floboss 503
How to correct errors when calibrating Floboss 503
Losing Control Signal Over 800 Foot Distance with RS-485
Needing some advice for installation of a MODBUS based fan control touch-pad system.
By W.L. Mostia on 4 May, 2015 - 6:45 pm
Did you put a termination resistor at each end of the cable. The following link may be of...
By Steve Myres on 4 May, 2015 - 6:06 pm
The title of your post seems contradictory with the body, but here are a couple possible scenarios:...
How to Add Event or Alarms in MARKVI
How to add event in cimplicity and find source of ground alarm?
on 4 May, 2015 - 6:56 pm
rauofelect, Your question is not clear. Is the DCS already connected to a time signal (GPS;...
Intellution OPC Server Toolkit Replacement
I need a replacement for the Intellution OPC Server Toolkit that is no longer supported.
By Kevin D on 4 May, 2015 - 4:15 pm
Have you looked at Software Toolbox? They have some tools that just might work for you. ...
Generator Overload Question
What happens when plant islanding condition and internal load more than generator ex. internal load?
on 4 May, 2015 - 11:52 am
naveed131, Either I didn't understand your post, or something seems amiss. I suspect the units...
By poom on 3 May, 2015 - 4:33 pm
Thank you very much for your answer (CSA). We will prepare function load shedding for protect plant...
Help on Final Thesis - Inverted Pendulum Control
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.
How to transfer/receive the data with MODBUS protocol between control systems, Yokogawa Centum and Allen Bradley PLC?
Basic difference between Zone-2 and Zone-1 equipment
Exd/Exe equipment for Zone-2 and Zone-1
By S,VENKATARAMAN on 4 May, 2015 - 3:42 am
Hello I am S VENKATARAMAN AEE(E) from ONGC and it is 5 years since you posted your query. By...
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.
By CuriousOne on 3 May, 2015 - 8:46 pm
If DeVry requires you to purchase an expensive PLC, please give me the details. I am DeVry...
By Joe E. on 3 May, 2015 - 4:05 pm
Ok, I'm going to take a deep breath before making this recommendation. In any other circumstances,...
Hart Communication Issues After Mk V to Mk VIe Upgrade
Hart 475 communication issues following MkV - MkVIe Upgrade
Effect or Implication of a Negative MVAR in a Turbine Generator
The effect of a negative (-ve) Megawatt-volt-ampere-reactive (MVAR)