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Thermal Overload
The threads that wouldn't die...
- PC reliability?
- Windows, real time
- PID loops
- PCs vs. PLCs
- Replacing people
- MS 'monopoly'?
- Software quality
- Where do we go from here?
- Why pay?
- PC reliability?
- Windows, real time
- PID loops
- PCs vs. PLCs
- Replacing people
- MS 'monopoly'?
- Software quality
- Where do we go from here?
- Why pay?
Fortune
It's a damn poor mind that can only think of one way to spell a word.
-- Andrew Jackson
-- Andrew Jackson
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Flow measurement of highly viscous material as line is over sized and this velocity is low,thereby decreasing accuracy
New Replies:
By David on 12 August, 2009 - 10:40 pm -
The accuracy rating of the Siemens Ultrasonic clamp-on transit time flowmeter starts at 0.3 m/sec.
...
Reading Type K thermocouple from 25 m distance
New Replies:
probably you won't have signal loses but you may have EM noise coming from outside the cable, to...
By SARADHI on 10 August, 2009 - 4:13 am -
No problem, if you use compensate cables for 25 meters.
...
By Roy Matson on 10 August, 2009 - 12:44 am -
25 meters is quite OK. Provided your measuring instrument is high impedance (most are now-days) you...
S7-200 micro/win32 software and its output display on PC
New Replies:
Hello,
Do you have an analog module to take the analog voltage from?
Siemens S7-200 CPU 222...
DNP 3 versus Modbus
New Replies:
By Ken Ellerman on 11 August, 2009 - 2:49 pm -
I recently experienced a problem while trying to run the D20 after copying the configuration file...
Thermocouple in high pressure reactor starts to fluctuate in the reading as it reaches 750C.
New Replies:
By Brian Beal on 11 August, 2009 - 6:09 am -
What kind of instrument are you using to read the t/c? Is it single or multiple channel? I have...
By Randy Bryson on 10 August, 2009 - 8:22 pm -
Type J is terrible for use in this application. As you can see, this person has a process at least...
I belive that you could use a thermowell to protect the thermocouple and reading against the high...
CHIPTOPI on ALPHASTATION VMS
New Replies:
By Bekhabar on 9 August, 2009 - 12:07 am -
Hi there,
The issue still stands . Last week i was with Emerson NL who have a good training...
Can I use the Modbus frame size larger than 256 bytes?
New Replies:
The answer is NO
The volume and speed of data you wish to exchange between both the client and...
By M Griffin on 7 August, 2009 - 11:00 am -
It's hard to suggest a good alternate protocol without knowing a lot about the application. So far,...
Thanks very much for all your reply.
In my case, I am in control of both ends.
I need to...
By Mark on 7 August, 2009 - 8:07 am -
Hi,
Since you are controlling both ends it might be advantageous to create your own.
FTP...
Thanks very much for your reply.
In my case, I am in control of both ends.
I need to transfer...
By M Griffin on 6 August, 2009 - 12:13 pm -
If you change the protocol it won't be Modbus anymore and it won't talk to Modbus devices. If...
No! If you notice in the Function Code 3 slave response the 3rd byte is the byte count of the data...
By Mark on 6 August, 2009 - 8:12 am -
Hello,
The quick answer is no.
"A protocol is a set of rules which is used by computers...
type of gauge valve and glass of sight glass level gauges
Help with Area Classification
New Replies:
By Roy Matson on 8 August, 2009 - 1:35 am -
The code says if any part of the sump is in Class 1 Div 2 the sump must be Class 1 Div 1. however,...
By Phil Corso on 7 August, 2009 - 11:45 pm -
Sue... Yes!
The material required is based upon the Specified Hazardous Area Classification, not...
> Class 1 Div 1 or Class 1 div 2? <
Class 1 Div 1
> Do we need explosion proof...
By Roy Matson on 6 August, 2009 - 1:26 pm -
Thanks Phil,
it's not actually a gas station, more like bulk storage. In searching 514.8 I came...
By Phil Corso on 5 August, 2009 - 10:39 pm -
Roy... if your two questions are related to Dispenser "Islands", then:
A1) Class 1,...
Armor Start DC bus fault
New Replies:
Thanks for this info but these amormorstarts do have a braking resistor. What I have tryed is...
IEC Zone Help
New Replies:
Normally barriers are used to connect EEX i (ia: zone 0, ib: zone 1) devices. i means intrinsic...
By Ian Jones on 7 August, 2009 - 9:41 am -
Barriers are not an automatic requirement in zone 2. You have to undertake a design review/risk...
GE gas turbine firing temperature calculation
New Replies:
By David Davis on 5 August, 2009 - 12:27 pm -
I'm updating this post because of the many inquiries we are getting for Turbine Inlet Temperature...
Mechanical gauges need ATEX
New Replies:
By david mertens on 5 August, 2009 - 5:52 am -
The differences in ATEX
Compared to the "Old Concept", ATEX also considers the...
By papaya on 4 August, 2009 - 11:12 pm -
I think as long as it does not invlove electrical, like transmitter etc, no ATEX is required.
If...
need help with program to backup data blocks with step 7
Trying to design a data acquisition method using a FIFO array built into the Programming.
New Replies:
By Gary Linn on 4 August, 2009 - 6:29 am -
I use an Archestra AppEngine to do this along with DASABCIP. PLC sends an unsolicited message to...
DC motor or electro brake?? which is better to apply torque on shaft
New Replies:
If you need apply reactive (i.e. friction type) torque, than magnetic particle brake with current...
By M Griffin on 3 August, 2009 - 4:57 pm -
Talk to Magtrol. http://www.magtrol.com/ They sell this sort of hardware. You will need to talk (or...
Can't set any boolean variables to 1 with RSView32
from the A presentation of the title. department...
Ship's Alarm Control and Monitoring System (ACMS) for commercial vessels
Resources for Ship's Alarm Control and Monitoring System (ACMS)
New Replies:
what kind of smart industrial devices are you using like PLC and other hardware....
I want to know any ready made SCADA applications are available for a thermal power plant.
New Replies:
See: http://www.Parijat.com
Email me your questions at rverma [at] parijat.com to know more...
By Shashin on 3 August, 2009 - 12:19 am -
See http://www.masplantiz.com/products/mimtis for a system that can possibly bring good ROI for...
What type of cable can be used for Gas Detectors in Zone 0.
New Replies:
By arun on 3 August, 2009 - 2:03 am -
Fire resistant cables are intended for use in inter panel connections of electrical, electronics...
Need help with some numbers about boiler drum level control
New Replies:
By Bruce Durdle on 2 August, 2009 - 5:38 pm -
Hi Chandrakant,
The 50% is simply a bias to allow the level controller output to increase or...
By Chandrakant Prajapati on 2 August, 2009 - 1:15 pm -
Dear Bruce,
In the Equation
FIC0101_SP = FT0112_OP + LIC0105_OP - 50 %.
You have asked...
usage of equalizing valve for dP transmitter/gauge
New Replies:
By Bruce Durdle on 2 August, 2009 - 5:31 pm -
For a flow transmitter, the equalising valve prevents full process pressure from being applied...
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