from the Electrical department...ABB Advant Controller 400
Working in the applications of ABB AC450
from the ModbusTCP data from Timbuktu to Honolulu department...GPRS Modbus TCP
Data logging software for Modbus TCP data received over GPRS from a remote PLC to a local PC
By Lynn August Linse on 27 August, 2012 - 10:48 am -
No suggestion of software, but just adding the comment that this is the BEST way to do this - what...
By Steve Myres on 20 August, 2012 - 9:07 am -
Try DAQ Factory from Azeotech.com. Versions start at free and go up from there. Very user...
By Andrzej on 20 August, 2012 - 8:09 am -
Hello, You can use any SCADA application with TCP/IP server or Modbus TCP/IP OPC server. You can...
from the Environmental Sciences department...Relation between Ambient Temp and Barometric Pressure
How should Barometric Pressure respond to changes in Ambient Temperature
By Rob on 23 August, 2012 - 6:21 pm -
> So its not JUST the Temp vs Barometric Pressure relation, as I understood in the most...
By Grishma on 23 August, 2012 - 1:18 pm -
Thanks Rob, So its not JUST the Temp vs Barometric Pressure relation, as I understood in the...
By Rob on 23 August, 2012 - 9:22 am -
This isn't really an automation question - you need to grab some weather textbooks. Some of the...
from the acoustics department...ICP microphone to a PLC??
I need to connect a microphone to a Siemens PLC.
By Kobus van der Westhuizen on 21 August, 2012 - 5:02 am -
It is possible to do what you want with a 4-20mA transmitter and an IEPE microphone (ICP). If the...
from the TRICONEX PLC department...NCM 4329
NCM 4329 COMMUNICATION
By Bruno on 21 August, 2012 - 4:35 am -
Hi, >Is it possible to get a converter like >BNC to ethernet? the Ethernet (802.3)...
from the Automation List department...Re: PGEN: Solar System Safety Certifications
I am performing self-certification on a solar system.
from the EE department...120/208V or 277/480V.... huh?
what does it mean when something is rated 120/208V or 277/480V? What do the two numbers mean?
By Steve Myres on 15 August, 2012 - 9:43 pm -
Excellent answer, if by "heater" you mean "motor". Actual "heaters"...
By Tyler on 15 August, 2012 - 9:03 pm -
>> Can you get 208v to supply something >(as per the nameplate requirement) from >a...
from the Conveyor Controls department...Need Conveyor Controls System Advice
Does anyone design conveyor controls systems?
from the Forum department...Engineering problem
looking for a website with companies that need an engineering solution to a problem they might be facing.
from the Forum department...Coriolis flow and density measurement of mixed sulhpide slurry
Dual measurement of Density and Flow of Acidic Slurry.
By Richard Lowrie on 9 August, 2012 - 10:56 am -
Single most important question, is this a dual tube meter?...
from the Forum department...Coriolis Meters
Water cut uncertainty with coriolis meter
By Richard Lowrie on 9 August, 2012 - 10:44 am -
First what meter are you using and what is the meters percent of accuracy for density? Second...
from the Flow rate Measurements department..."Big" Coriolis flow meter
Why I cant find large Coriolis flow meter?
By Richard Lowrie on 9 August, 2012 - 10:38 am -
KROHNE, E&H and Emerson all manufacture Coriolis mass flow meters in sizes over 8 inches. These...
from the Instrumentation department...Flow Meter for Sea Water Application
Flow measuring solution for sea water 114" pipe
By Richard Lowrie on 9 August, 2012 - 10:32 am -
There are several options available, there are mag meters in this diameter, but with FRP pipe I...
from the Forum department...Wastewater magmeter versus ultrasonic meter ?
Requesting feedback regarding use of magmeter versus ultrasonic meter for metering wastewater in a force main.
By Richard Lowrie on 9 August, 2012 - 10:19 am -
A well built magnetic flow meter should never have coils fail after such a short time in service. ...
from the PROCESS department...twido abd w@de
Communication between twido plc and w@de 315 rtu
from the aerodynamics, controlsystem,machines department...motor drives for satellite reaction wheels
Hi i am doing my M.Tech in control and instrumentation. i am in search of a motor drive for the reaction wheel, other than the conventional BLDC motor and the PMSM motor
from the automation department...Online changes in Control Logix
Is it possible to do online changes with Ladder and Function Blocks in RS logix and the Control Logix?
By shogdog on 8 August, 2012 - 2:22 pm -
Version 16 allows you to online edit ladder logic, function blocks and sequential function charts....
from the puzzled department...Issue with two E&H Cubemass meters
Inspiration required... a bit stuck
from the Forum department...Which communication protocols are companies using when developing products?
Which communication protocols are main companies developing products using these technologies?
By Heinz on 7 August, 2012 - 2:56 pm -
You have to differentiate between the protocol definition and the implementation. The...
from the Forum department...Ethernet/IP and VB.NET
Trying to communicate with an Ethernet/IP module via VB.NET
By JAro on 7 August, 2012 - 4:01 am -
Hi Ron, I am trying to find your link no success. Jaro...
from the power department...earth current with Shield current of a 63Kv line
problem with Shield current of a 63Kv line (single core)
By Phil Corso on 2 August, 2012 - 4:50 pm -
Masoud... 12) Is the ratio of Line-current to Shield-current always the same? Phil...
By masoud on 2 August, 2012 - 12:26 am -
> My first question is how did you measure it? the current was measured by a clamp ammeter...
By bob peterson on 1 August, 2012 - 5:23 pm -
My first question is how did you measure it? It seems likely that this much current on a shield...
from the serious department...ModbusRTU Master Over TCP/IP Interface in Java
I'm developing a ModbusRTU Master Over TCP/IP Interface to read a ModbusRTU electricity meters data. the meters are working over RS485 network.
You can try xMasterSlave for Modbus protocol at www.tgscada.com. It is a completely freeware....
from the Forum department...Wonderware logger alarm group errors
Added new alarm group in WW Error in logger.
from the too formal department...kva & hp
maximum hp motor for dol starting with given kva transformer
By Phil Corso on 24 July, 2012 - 4:49 pm -
Engineer... I committed three (3) 'OOPs' (the most feared word in an operating-room): OOPs 1) I...
By Phil Corso on 24 July, 2012 - 3:37 pm -
Engineer... since the V-Drop experienced by the motor is proportional to the load carried by the...
dear phil corso and william hinton, thanks the basic idea i started out with is, the maximum hp...
William... I meant NEMA Locked-Rotor Code. Phil...
William... I would be very interested in the motor's kVA/Hp ratio? Regards, Phil...
By William Hinton on 21 July, 2012 - 11:04 am -
As you did not specify a transformer type, voltage class, kVA or hp, I will give you an example: ...
from the Automation List department...Unity vs. Concept
What is difference between Unity and Concept programming?
By teboho on 23 July, 2012 - 8:16 am -
> Unity is new era at Schneider, you can use Premium and Quantum Families as well, but not...
from the Engineering department...Airfield Lighting Circuit
Airfield lighting circuit connections
By John Correa T on 22 July, 2012 - 10:39 pm -
Lamps in the series circuit must be controlled in certain bright settings. This is done through...
HV... they are series-connected to provide consistent lighting patterns. Series lighting insures...
from the INSTRUMENTATION department...Difference between 316H and 316L material
what is difference between 316H and 316L SS material? we are using 316L ss material impulse lines for Low pressure instruments and 316H SS material impulse line for high pressure impulse lines.
By d- on 20 July, 2012 - 8:26 am -
the -H, -L refer to carbon content only ...
from the High level control software department...High level control platforms (WinPC server based) that can do PID and MPC?
I am looking for a "best of breed" PC-based High Level/Advanced Control software platform that combines:
1) Basic and advanced PID function blocks
2) MPC capability
1) Basic and advanced PID function blocks
2) MPC capability
from the Testing Department department...underfrequency test for Micom P643
This is just a query for other procedures for under-frequency relay time test.
William... see Eng-Tips, Thread # 238-307149, for a similar question on the MICOm P643! Regards,...
from the Forum department...Valve Controller & Positioner
Difference between A valve positioner and controller
By Sam on 17 July, 2012 - 8:48 am -
The way it works is that you will have say a pressure transmitter in the field somewhere measuring...
from the commissioning department...electrostatic treater interfce level control
We have a Ktek Capacitance type level transmitter to measure the interface and it is part of a LIC and LCV. We have checked the calibration and it is ok. In a current normal operation crude is flowing along with the water on the water line.
By Sam on 17 July, 2012 - 7:37 am -
We have had similar problems and we have finally come to the conclusion that the only proper I/F...
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