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PLCs
Topic: Software, including programming, OS issues, etc.
from the Automation List department...
First Impressions TIA V12
Posted by Curt Wuollet on 3 March, 2014 - 9:39 pm
Using the latest S7 software.
Topic: Engineering and workplace issues.
from the Forum department...
ABB MB300 Connection to Pi using OPC
Posted by Will P on 3 March, 2014 - 7:13 pm
Anyone used Novotek OPC to connect ABB MB300 Connection to Pi?
Originally posted by instrumentation on 28 February, 2014 - 11:10 am
Using SCADA communications with a UT 35A controller
New Replies:
The 3rd digit in the model number defines which comm protocol/transport layer your 35A has. none,...
Topic: PLCs and related questions.
from the Siemens S5 IO access department...
Siemens S5 95U, 102U and 103U Communications
Originally posted by uptownlord on 1 March, 2014 - 6:01 am
I want to access data of a Siemens S5 PLC by another PLC or a computer via Ethernet
New Replies:
My first advice would be replace the PLC by something modern. Step 7 has a very good conversion...
By Gabriele Corrieri on 1 March, 2014 - 12:46 pm -
There's more ways to connect to S5 No solution available as ethernet card on rack: the ways...
Topic: PLCs and related questions.
from the Help department...
4-20 ma simulation
Originally posted by J Hoke on 6 November, 2003 - 1:00 pm
4-20 ma 2 wire simulation.
New Replies:
I found this article about 4-20 mA simulation with a potentiometer. ...
Topic: PLCs and related questions.
from the Shiplift department...
Malfunction of Analog Input Module
Originally posted by Siemens on 22 February, 2014 - 2:03 am
Problem related to Siemens analog input module
New Replies:
Did you check the earth connections? Is the negative from the 24V supply connected to earth, Is...
Without a recent change in software, it sure sounds like your AI is bad. Not much to do but swap...
What kind of load cell do you have that outputs a milliamp signal? Most load cells have a...
sir actually i have checked the mA value in both load cell output and AI module. the value...
If you change the load and the indicated load doesn't change, there's a good chance that the load...
Topic: Continuous process industries, DCS questions.
from the Forum department...
Actuators requiring 50 mA current
Originally posted by Jimmy Mascrehnas on 23 February, 2014 - 6:48 pm
How do actuators requiring 50mA current work?
New Replies:
Player, Can you please cite the standard which you are referring to? Is it IEC? ANSI? EU/TUV?...
I am working on turbine specific control module of Siemens that is ADD FEM. It has an added...
2 wire, loop powered, 4-20mA field transmitters use approximately 3.5-3.6mA to run the device's...
> I think you've answered your own question; whatever device is using a > 50mA control...
I think you've answered your own question; whatever device is using a 50mA control signal needs...
Topic: PLCs and related questions.
from the dept of redunancy dept department...
PLC remote communications
Originally posted by rookieca on 14 December, 2013 - 11:48 am
Remote communications of machine PLC, without going on to customer network
New Replies:
I'm kinda keying on your use of 'units' in this post as an indicator of power generation, so I'm...
Originally posted by Javad babaee on 1 November, 2012 - 11:43 am
2 question regarding getting information from master using C++ and reading analog registers at the same time (I'm using AVR)
New Replies:
you can't synchronize the master request and the ADC read. if the ADC value isn't ready in 3.5 time...
Topic: Power generation equipment control.
from the Forum department...
Mark V Time sync problem
Originally posted by dinster on 8 December, 2010 - 3:09 am
problem with Mark V HMI time-sync
New Replies:
syed_hassan08, Thanks for the feedback!...
We have solve the problem of MARKV time sync by adjusting the time through the DCS by giving...
Refer to same as Syed Hassan mentioned, we investegated the problem a little bit and found that the...
Topic: PLCs and related questions.
from the Forum department...
Converting a Siemens S7 PLC program
Originally posted by Reinhardt s7 300 on 24 February, 2014 - 5:30 am
S7 300 plc and its programming.
New Replies:
That's what they say, but there are some gotchas and it can make for some strange RLL. Regards ...
From the "View" menu, you must select KOP. If the code is written with the function...
Topic: PLCs and related questions.
from the mechanical department...
Coding PLC ladder methodology?
Originally posted by liarlai on 23 February, 2014 - 10:49 pm
Is there a methodology of coding PLC ladder?
Any website or books or insight would be appreciated.
New Replies:
I would think that reading a lot of ladder code would have shown, that if there is a proper method,...
Amen to that! I've often seen the organization of code done in a process flow manner (at least...
I don't know if you'll find anything formal written down. If you do, it'll probably consist of...
I agree with the other posts. I was brought up with Ladder logic by a mentor/friend who was...
Ladder logic is very good for certain kinds of coding. If you have a lot of stuff that is...
There are countless methods, depending on many variables. Some PLC's are easier to write well...
Topic: Human-Machine Interface and SCADA.
from the Automation List department...
Android tablet for HMI?
Originally posted by Ken E on 3 June, 2011 - 11:18 am
Using an Android tablet as an all in one PLC.
New Replies:
Accessibility for mobile devices is one of the expectations HMI/SCADA software developers will have...
Our client for Android can be downloaded from ...
I have been using Android, iPad and iPhones to "mirror" the display on Siemens HMIs. They...
Topic: Software, including programming, OS issues, etc.
from the Forum department...
ABB ACS 800 relay
Posted by Gil on 24 February, 2014 - 6:44 am
activating a relay on ABB ACS800 inverter
Topic: Software, including programming, OS issues, etc.
from the R&D department...
Help with MODBUS Address
Originally posted by gil on 2 February, 2014 - 7:26 am
Help needed with writing a bit (true/false) to a modbus adress
New Replies:
I'm very very sorry. The relay is on X25 where the power (+24V) is connected to port 2, and the...
> Ok all I want to do is to activate a relay on the X22 so it will close a circuit. > This...
>> Writing to 14.03 is not an issue I can handle it very easily from labview. >> my...
Topic: PLCs and related questions.
from the Forum department...
Telemecanique TSX 17
Posted by Steve Ashcroft on 22 February, 2014 - 8:29 am
Telemecanique TSX 17 shows no power
Topic: PLCs and related questions.
from the Automation List department...
Any Volunteers?
Originally posted by Curt Wuollet on 20 May, 2006 - 4:11 pm
I want to convince at least one leading PLC manufacturer or relabeler to at least cooperate with an effort to produce an OSS PLC programming toolset to run on Linux.
New Replies:
> I want to convince at least one leading PLC manufacturer or relabeler to > at least...
Topic: Software, including programming, OS issues, etc.
from the Communications department...
How do OPC works?
Originally posted by Daniel on 23 January, 2014 - 9:09 am
How do OPC works and what are the differences with other protocols?
New Replies:
"The OPC server is not 'on' the PLC, the OPC server resides on a PC somewhere and the...
Topic: PLCs and related questions.
from the Automation List department...
MSG SLC505 to ControlLogix
Originally posted by Jerry H on 19 February, 2014 - 10:51 am
Is it possible to communicate between LC505 to a ControlLogix using ethernet/DH+?
New Replies:
Certainly comms between the SLC 5/05 and the Contrologix are straight forward Ethernet messaging....
Yes, you can easily read/write the SLC from the CLX. The SLC is older tech than the CLX and...
Topic: PLCs and related questions.
from the Special Effects department...
Interfacing dmx controller to a plc
Originally posted by Anoop on 8 February, 2014 - 4:12 am
Interfacing dmx controller to plc using serial port commands
New Replies:
The Loxone system would be helpful for you. Our system in one package is able communicate...
Topic: PLCs and related questions.
from the Forum department...
How to control speeds of 3 dc motors
Originally posted by P on 19 February, 2014 - 1:56 am
How to control speeds of 3 dc motors using s7-200 plc.
New Replies:
Assuming a small hp or fractional hp motor, possibly permanent magnet from Bodine, Leeson, Bison,...
And the answer depends on: How big are the motors, and a lot of other factors. Regards cww...
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