from the Forum department...Modifying a timer - SLC 504
Having an issue finding where a source comes from in a MOV command.
from the Forum department...TwidoSuite v2.3 interface with CitectScada v7.3
Equivalent register address of PLC to SCADA
from the Automation List department...Comparing PLC and DCS
I am new in the field of automation. Could anybody tell me the difference between PLC and DCS other than I/O handling capacity?
By Iqbal Raza on 27 March, 2014 - 1:54 pm -
People are still giving answers because many users still don't know the differences between a PLC...
from the Forum department...Modbus RTU (Client/Server) to Modbus RTU (Master/Slave)
Please read the text for full information. The attack codes I am talking about are for DoS and Injection attacks.
from the I&C department...ATEX Ex ic or ATEX Ex nA ?
ATEX Ex ic or ATEX Ex nA ?
Hi, Normally from technical point of view it is required unification of solution. So if you use...
from the Automation List department...So What did I use the Clicks for?
Real world example of using the Koyo Click PLC
By Curt Wuollet on 26 March, 2014 - 11:24 am -
> Don't really care for the Clicks (although ADC's new Do-More PLC is a > fantastic product...
By Steve Myres on 25 March, 2014 - 10:25 pm -
Don't really care for the Clicks (although ADC's new Do-More PLC is a fantastic product except for...
By Curt Wuollet on 25 March, 2014 - 9:31 pm -
When you consider the click is expandable to 128 points at low cost, it's not a little PLC. I think...
By OLD guy on 25 March, 2014 - 9:14 am -
Great Review of a great product. These little "gems" of automation are not to be...
By Curt Wuollet on 24 March, 2014 - 9:05 am -
It can be configured for both master and slave. And since it has a free RS232 port as well, It can...
Super Review. Thank you. Is the $99 model with the 485 port a Modbus slave only, or can it be...
By William Sturm on 22 March, 2014 - 9:58 pm -
Curt, Thanks for the well thought out review. Bill...
from the Forum department...File Handling through Micro Controller
Using Micro Controller to do file handling on a PC
> Presently able to do communication with Hyper Terminal (Micro Controller > connected to PC...
ya i know through Linux is less complicated to achieve this, but my Application needs to do this...
from the Forum department...Modbus Safe / ModSafe?
Modbus Safe / ModSafe - Is it Modbus for safety related systems?
By MarkRuss on 25 March, 2014 - 4:00 pm -
I invented modsafe. Where did you hear about it?...
from the PLC Control department...PID Control using FB41 for Siemens S7-300 PLC
I am an undergraduate student who is currently trying to program a Siemens S7-300 PLC (CPU 313) for PID control using FB 41. Where can I find more examples and more details on how to use FB41. There is none inside the Siemens PID control manual for the FB41. What are the important parameters that need to be configured?
By AMIR OVCINA on 25 March, 2014 - 1:08 pm -
LINK IS http://www.plcman.co.uk/S7/...
from the Forum department...A question for you guys - online PLC courses
Best or most useful plc training courses.
The following blog as a reference can learn online plc, and all free. goto my blog...
from the Forum department...Communication via Modbus/TCP between Microcontroller x PLC
A Stand-alone system to control a lighting system and and their respective power factor via a microcontroller. Additionally, microcontroller can be communicate with a PLC to available the data via a SCADA system.
hi Pedro, Arduino's are always a good choice, and there is apparently some code (not sure of...
from the Automation department...Problem SattControl
Problem SattControl - I can't compile program!!
from the deacro slitter department...0 to 10 volts pressure transducer
Running a 0 to 10 volt controller like you would 4 to 20 ma
from the Diesel Electric DP Vessels department...Detection methods for AVR loss of sensing in weak networks
I am looking for ways to detect a loss of sensing voltage scenario on weak grids in offshore power systems installed in rigs and DP vessels
from the Automation List department...Android tablet for HMI?
Using an Android tablet as an all in one PLC.
By Joel Labrucherie on 18 March, 2014 - 2:49 pm -
We've developed just this type of HMI. We have an Apple version already polished up, and have just...
from the Forum department...Control System Project
Steps for making a PLC based industrial automation project, from scratch
By Bruce Thompson on 18 March, 2014 - 10:09 am -
Your wanting to learn more about Control Systems is commendable. I hope that you will continue to...
from the Help department...Wonderware DASABCIP
Unable to connect Wonderware Intouch View to A-B CompactLogix 1769-L32E
By Mike on 17 March, 2014 - 2:18 pm -
I have the same problem on a 7 comp. were you able to solve it? > Unable to connect...
from the Automation List department...Who can provide CJC for 1769-IT6 module
Source for CJC for 1769-IT6 module
By KP on 17 March, 2014 - 1:23 pm -
> We lost several CJC for 1769-IT6 module (AB Compact Logix family). Who can provide us CJC?...
from the Network Trouble department...Network Storms
Network Storm taking down control System.
> It sounds like you really need better separation between your DCS and > corporate systems...
By Rob on 14 March, 2014 - 9:45 pm -
Glad you found the problem. However, why on earth is your DCS directly connected to an external...
Problem solved, ran wireshark and found IT NAZ server was broadcasting on the production network....
By moose on 13 March, 2014 - 5:04 am -
What kind of turbines do you have? On GE Mark6/6e control system there was a recent til/psb issued...
from the Communications department...How do OPC works?
How do OPC works and what are the differences with other protocols?
The new OPC-UA specs come with profiles (incl. a "micro" and "nano" profiles)...
By Lynn August Linse on 5 March, 2014 - 6:25 pm -
Tossing my 2 cents in :) Customers often ask YOU (aka: small device maker) to put OPC in your...
By Fred Loveless on 5 March, 2014 - 2:58 pm -
Classic OPC, That is to say OPC DA, AE, and HDA, is based upon the Microsoft COM (Component Object...
I can understand that if I have the OPC server in a PC, then it will get the field data and convert...
from the Instrumentation department...Pressure transmitter
What will happen when connecting the 4-20 mA output of one transmitter parallel to other transmitters slot of PLC?
> is it possible to connect a transmitter output to another transmitter? No. > if we...
from the Forum department...Modbus read error "break condition"
Schneider converter with modbus poll
from the Forum department...EEPROM Failure on Woodward Powersense Card
EEPROM Failure on Woodward Atlas II Powersense Card
from the C&I department...PLC for Burner management system
How a PLC can be more than a Burner management system..
By Charles Fialkowski on 6 March, 2014 - 5:07 pm -
Have you checked out my BMS blog. It's primarily focused on using safety PLC's for BMS. ...
from the Automation List department...PLC vs. Microcontrollers
are there any reasons why plcs are preferred over microcontrollers?
By Curt Wuollet on 5 March, 2014 - 12:10 am -
It might, but you have to remember that a PLC _is_ a microcontroller, with an executive and...
By vishal on 4 March, 2014 - 8:44 pm -
but microcontroller have such speed that those top to bottom line execution doesn't matter and...
from the Forum department...Modbus RTU communication between Siemens CP441-2 and Schneider Compact NSX
I try to connect a Power Circuit breaker from Schneider to a Siemens PLC using Modbus RTU protocol.
from the Automation List department...First Impressions TIA V12
Using the latest S7 software.
from the Forum department...ABB MB300 Connection to Pi using OPC
Anyone used Novotek OPC to connect ABB MB300 Connection to Pi?
from the instrument department...SCADA communication with Yokogawa UT35A controller
Using SCADA communications with a UT 35A controller
The 3rd digit in the model number defines which comm protocol/transport layer your 35A has. none,...
from the Siemens S5 IO access department...Siemens S5 95U, 102U and 103U Communications
I want to access data of a Siemens S5 PLC by another PLC or a computer via Ethernet
My first advice would be replace the PLC by something modern. Step 7 has a very good conversion...
Substitute "damn" every time you're inclined to write "very"; your
editor will delete it and the writing will be just as it should be.
-- Mark Twain