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- PC reliability?
- Windows, real time
- PID loops
- PCs vs. PLCs
- Replacing people
- MS 'monopoly'?
- Software quality
- Where do we go from here?
- Why pay?
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What is the advantage of using duplex type RTDs in HV Motor protection
New Replies:
By Carl on 25 October, 2009 - 3:10 pm -
Without knowing the application of High Voltage motor protection, let me state some basics of...
Three phase motor's current is imbalance
New Replies:
By Phil Corso on 25 October, 2009 - 8:32 am -
Adil... The amperage test, while providing additional information, did not provide any more...
By Adil on 25 October, 2009 - 5:10 am -
Here's the additional info
Rated RPM 2940
Rated KW 7.5kW
Measured RPM 2890...
By Phil Corso on 24 October, 2009 - 7:32 pm -
Adil... there are additional tests you can carry out. However, more data is required; please...
By Phil Corso on 24 October, 2009 - 11:41 am -
Adil... there are additional tests you can carry out. However, more data is required; please...
>Roy,
> I've checked that with low variable voltage transformer. With its primary <
...
Change of range for pressure indicators
Cable schedule and interconnection drawing format.
New Replies:
Please kindly send me the format to my email id:
gvirendrakiran [at] gmail.com
Thanks in...
By chandrajeet on 23 October, 2009 - 10:01 am -
hi dear,
can u plz forward me the cable scheduling in whatever format it is in to my mail...
using annubar on flow measurment..
New Replies:
By David on 24 October, 2009 - 3:50 pm -
Could it possibly be a nitrogen purge line? Slurry service or suspended solids service has used...
VB - Modbus
New Replies:
By Harvard on 24 October, 2009 - 9:34 am -
> please kindly help how to make a VB can read a modbus? for example I want to >make a VB...
How do i remove the KNOW_HOW_PROTECT
New Replies:
By fsdfs on 24 October, 2009 - 8:33 am -
> to reset know-how-protect of a SIEMENS S7-Function Block just follow this little recipe: <
...
How can HC900 communicate with ML50?
New Replies:
By David on 24 October, 2009 - 8:31 am -
Sorry, I can't help on facts about ML-50. Whatever the ML-50 is, I've never seen or heard of it...
Hello,
As already stated the hc 900 will act as a master and/or slave on all ports, also the...
Hi David;
Thank you for your valuable information. Do you have the model of the ML50 Ethernet...
By David on 20 October, 2009 - 10:20 pm -
Presumably, the ABB drives are Modbus RTU slaves. On that assumption, the HC-900 is a Modbus RTU...
By Wassim Daoud on 20 October, 2009 - 11:45 am -
Have you considered about using OPC to transfer the data back and fourth between the factories?...
By Wassim Daoud on 20 October, 2009 - 11:42 am -
Have you thought about using a Small Historian or a Buffer to store the data?
Visit this website...
By Patrick Lansdorf on 20 October, 2009 - 8:41 am -
Hi Keith,
I work for a company that makes gateways, HMS.
To me it sounds as if a gateway...
coriolis type flowmeter . the calibration range is 0-1000GPM (0-2240kg/min) but vendor done up to 2268 kg/min. is it acceptable
New Replies:
Actually the meters are calibrated to know the K-Factor/flow co-efficient over the flow range....
By process data on 20 October, 2009 - 10:59 am -
Dear sir
i am giving you my process data
PROCESS DATAS
Fluid- Liquid , Flow normal - 418...
I need to convert my C++ code into S7 for siemens s7-300.
New Replies:
By Ed Wells on 24 October, 2009 - 12:33 am -
For using a nice version of C/C++, you might want to consider using a product line, like...
the factors one would have to consider
New Replies:
By curt wuollet on 23 October, 2009 - 2:55 pm -
Burden is the small voltage drop across the reflected impedance of the secondary in the primary....
By Phil Corso on 23 October, 2009 - 10:52 am -
Cesar... contact me Off-List if your are unable to extract the info you need from the Control List...
By Anybody on 23 October, 2009 - 12:36 am -
Hi,
Am worker of CNFL (National Company of Light and Traction). I need to know about Burden in...
we are planning to overhaul a present GE-MS5002D type turbine , but we don not have the overhaul up dated manual to go through
New Replies:
By Dennis on 23 October, 2009 - 2:47 pm -
the link you have provided has expired, could you kindly repost.
>Check this one.
>
...
Leading power factor for backup generators
Link to old Bailey pneumatic controls for the boiler feedwater steam driven pumps.
New Replies:
> I have encountered a Bailey model #5311450A6 positioner and was looking for a manual for this...
I am struggling with the solution to this transfer function, school is 30 years hence.
time synchronization in DCS system
New Replies:
The system clock for most systems nowadays are very unlikely to drift more than a seconds in a day....
choosing a right 3 phase induction motor?
For a project we have to restore the process loads after power failure. How can i do this
New Replies:
By ananymous on 22 October, 2009 - 12:33 am -
I did a project with a PLC having retentive memory. The PLC was controlling a batch process.The...
By Phil Corso on 20 October, 2009 - 12:39 pm -
Yes, there is! It's called "Reacceleration!"
Regards, Phil Corso (cepsicon [at] aol...
implementation question on Linux-based PC: t1.5 and t3.5 frame timing in the ModBus RTU standard
New Replies:
By M Griffin on 21 October, 2009 - 5:48 pm -
When you are talking about Modbus, you have to keep in mind that there are several different forms...
Could someone explain whether variable speed with a single-shaft gas turbine is permitted while the generator is producing power?
New Replies:
The only difference between a motor and a generator is whether the device is producing torque from...
Ohm law CONFLICT & F = ma
New Replies:
By Jack on 21 October, 2009 - 12:32 pm -
Way too much coffee!
>http://www.maztravel.com/maz/explain/ohm.html
>
>Now lets try...
How to change operation between motor, and generator?
New Replies:
Conceptually, if you are applying torque to the motor in the same direction as the velocity, you...
Improving the communication data speed between OPC server to Application software.
New Replies:
By Fred Loveless on 21 October, 2009 - 9:53 am -
Are you using RSLinx or another manufacturers OPC Server. It makes a difference in recommending how...
from the Automation List department...
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.
New Replies:
By Jeff Chang on 21 October, 2009 - 4:28 am -
We download new GSD of Siemens et200m and set FC3101, Beckhoff Profibus cards, baud rate at 1.5 M...
How to improve my steam generator control system.
New Replies:
Because of load rejection from the grid, it can operate on islanding, provided your auxiliary...
Please let me know briefly about the Temperature sensors and their assemblies, in process control
New Replies:
By David on 20 October, 2009 - 10:23 pm -
Please refer to pages 155 to 167 of the class textbook for answers....
Is it possible to connect Siemens AO card 4-20mA output to Siemens 4-20mA AI card?
New Replies:
hi,
don't worry u don't have any concept 4 wire and 2 wire at module end. if u want to test the...
Anybody who has succeeded in using af S7 USB adapter in VMware (windowsXP) on linux?
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