Honeywell C300 PID gap gain
Difference between Honeywell C300 PID gap gain and the gap gain on Honeywell xPM PID?
By jeffr on 1 February, 2015 - 7:10 am
The main difference is that the C300 gap controls doesn't work, where-as the legacy gap does. The...
Vibration Monitoring System Replacement
Looking for experiences about replacing vibration system for steam turbine.
Redundant Communication for RTU
Best method to design redundant communication for RTU
Electronic Earth and Power Earth
Posted by Sunil Chavan on 31 January, 2015 - 9:27 pm
Resistance between electronic and power earth
Can anyone help find cause of alarm "P IN WTR DIS SYS PLS"?
Comap BOC IDMT Fault, Anyone else experience these?
Anyone Experience BOC IDMT faults on a genset being controlled with a ComAp system?
By Erik on 31 January, 2015 - 8:52 pm
Rob Not sure if you received any replies, a colleague and I were just discussing a similar...
HART multi drop to multiple 4-20mA loops
Exd Approved Flow-Controller
Looking for an ExD approved gas flow and pressure controller. The component(s) need to be compact to fit in a box with the following dimensions: Height: 550mm by With: 300mm by Thickness: 150mm.
By Roy Matson on 31 January, 2015 - 7:37 am
Brooks thermal mass flow controller is one I have used. it both measures and controls in a single...
Piping Material Specification
Looking for piping material specification information
Help needed with a question on process control networks for a interview.
Filtering OLTC oil for reuse
Problems with Analog Card on Cegelec ALSPA 80/35 PLC and P1200 SCADA
Cegelec ALSPA 80/35 PLC analogue card inputs have regular spikes appearing on the graphic trend.
Steam Escaping from Passing Valves
Posted by sriram sandeep on 30 January, 2015 - 3:53 am
How to avoid steam escaping from passing valves
By Walt Boyes on 30 January, 2015 - 10:04 am
There are several steam trap leak detectors that may well work across valves as well. Cypress...
Why Need 250 ohms resistor in HART protocol
Need of 250 ohms resistor in HART protocol
By Mujahid Chougle on 29 January, 2015 - 10:17 pm
> Why do we need to include 250 ohms resistor in the loop while using HART protocol? -...
ST ACV Command and Feedback Difference
ST ACV command and feedback difference is gradually increasing.
Drop Creation in Emerson DCS Server
Drop creation in Emerson Ovation Dcs.
By CT on 29 January, 2015 - 4:42 pm
> There are two basic types of drops that can be added to a system: workstation and controllers....
Very Low Frequency Grid Oscillations
Very low frequency 0.06Hz oscillations of grid frequency occurring in relatively weak system - not sure of exact mechanism
Industrial Communication Training Tools
Looking for industrial communication training tools on various topics.
Eurotherm Recorder's Communication via MODBUS TCP
Eurotherm recorders communication using MODBUS TCP has become erratic.
PLC Direct PLC and Rosemount Transmitters Won't Work Together?
I have been told that a Rosemount 3051s smart transmitter with hart cannot work with the analog input card on a PLC direct 205 controller.
By rootboy on 29 January, 2015 - 2:18 am
> Something else is causing the problem; it isn't HART. Yup. I can't see how it would be a...
Operating a Gas Turbine on FSNL
Running gas turbine on FSNL for a long period of time.
Generation Getting Down to Zero
Generation getting down to zero from full load while in service without any external commands.
By Tim Hinde on 28 January, 2015 - 12:53 pm
The 505 has inputs for a load controller and also for generator breaker position. If you don't have...
TwinCAT 3 Error When Switched to Run Mode.
TwinCAT 3 error when switched to Run Mode.
OPC Connectivity of Package Vendors with ICSS
Connecting 3rd party package (Integrated Control and Safety System) to DCS
Electromagnetic flow meter problems
Posted by karthick on 12 May, 2014 - 3:47 am
Totalizer reading on electromagnetic flow meter of chemtrols errors.
Physics of ... Tap-Changer
The question is asked often, but never a viable answer!
Analog and Digital Signal Separation
Analog and digital field cable segregation in marshaling cabinet
Problems with Phase to Phase Heating Elements
Will this redesign have problems?
By Steve Myres on 26 January, 2015 - 11:09 pm
If the heaters are subject to mechanical damage, why not fix the mechanical design instead of...
By Bob Peterson on 26 January, 2015 - 5:46 pm
I am not sure what you mean by the numbers you posted. Are these voltages? What are you measuring...
By runescape on 26 January, 2015 - 4:05 pm
> For the present configuration what are the phase-ground voltage measurements when a...
Orifice Plate straight run requirements
Orifice Plate- straight run requirements w.r.t beta ratio
By Ari EP on 27 January, 2015 - 12:26 pm
Dear Roy and all, We are arguing the two different matters of orifice, i.e. flow orifice (where...
Adjusting the Voltage on Electric Socks
Is there a way to use a regulator to adjust the voltage of electric socks?
Control Moment Gyroscope Transfer Function
Question about the methodology of determining the transfer function of a control moment gyroscope.
Specs for the Mark V ribbon cables
Writing a Driver for Modbus/TCP
How to write a driver in matlab for aModbusTCP connection between windows pc and an IPC using xPC
MODBUS Newcomer Has Questions
New to MODBUS and have questions about function codes
OpenMODBUS and MODBUS TCP
Difference between openMODBUS and MODBUS TCP? Is it the same?
GE Gas Turbine Corrected Speed
Posted by Johnplayers on 20 May, 2014 - 9:42 am
Importance of GE Gas Turbine Corrected Speed
Analog accumulator Mark-V
How to config an analog accumulator in Mark-V.