Looking for Good Sources of Basic Information on SCADA Systems
Want to learn more about SCADA for use in oil and gas field.
Losing Control Signal Over 800 Foot Distance with RS-485
Needing some advice for installation of a MODBUS based fan control touch-pad system.
on 7 May, 2015 - 11:57 pm
Twisted pair is not just any twisted pair. Use the proper cabling--and add the termination...
By Steve Myres on 4 May, 2015 - 6:06 pm
The title of your post seems contradictory with the body, but here are a couple possible scenarios:...
Open Source Web Based SCADA
Looking for a reliable open source web based SCADA software.
Need some help on using Python to test Ethernet/IP implementation.
By Ago on 5 March, 2015 - 12:53 am
I have implemented a EIP library in Python. At the moment the library reads and writes multiple...
By Mark on 24 July, 2014 - 8:51 pm
Hello, At: http://www.hmisys.com/downloads/msExcel.zip is an Excel file that shows a...
By Lynn August Linse on 24 July, 2014 - 2:03 pm
Sure, send an email direct to lynnl at digi.com. I've actually been asked quite a bit lately. I am...
MODBUS Device Gateway: Master or Slave?
We are asked to add a modbus gateway feature to a dedicated device gateway we have. What would a MODBUS user/engineer expect?
By Lynn August Linse on 17 February, 2015 - 10:06 am
The closest think I have seen to a 'standard' doc format is the renewable energy work done by...
By Christof on 17 February, 2015 - 6:58 am
thanks for your answers. This is what we now intend to implement: - gateway would be a slave ...
By Lynn August Linse on 13 February, 2015 - 9:38 am
At a minimum, I would suggest this: 1) all data available as 4x/holding registers, read by func...
Master Thesis Guidance With Protocols
Trying to decide which communication protocol is better for the API I am designing for my Master Thesis.
Can anyone tell me the difference between OPC and open protocol?
Selecting A Pressure Switch for Hazardous Environments
Need some help selecting the right pressure switch in an environment with H2S present.
Pump Running Indication on Control Circuit
How can I properly wire my pump panel to show that when the pump is actually running I get an indicator on my PLC/HMI.
By PLC programmer on 10 October, 2014 - 9:21 pm
This can be achieved in multiple ways. I guess you are already reading the Ampere load to the...
New 32/64 bit S7 communication library
100% Ethernet - Open Source -
By pvbrowser on 10 October, 2014 - 4:45 am
Nice e to have a new Open Source LGPL library for Siemens PLC communication. I downloaded your...
By Vanderley Maia on 5 July, 2014 - 7:56 pm
Very nice work! I try to use this library and your samples (rich-demos) but something doesn't...
Main Lube Oil Bearing Header Pressure Low on GE F9
Lately we discovered that in one of our frame 9 GT, the bearing header pressure gives different value for the different pumps
Open Source PLC Programming Software
I wanted to know what are the best open source PLC Programming software to use
Free HMI/Process control software
Introduction of free, platform independent and open source HMI/automation software
Help with Anti-swing Sliding Mode Controller for Gantry Crane
By Peter Nachtwey on 3 September, 2014 - 4:14 pm
> I'm an Electrical Engineering student undertaking an Advanced Control subject. > I need to...
I am searching a PID controller example in Java with source code.
SCADA and HV/LV distribution substation automation
How to automate HV/LV distribution substations using SCADA.
Modbus support for Powerlogic Circuit Monitor Series 2000
Posted by Mehul Shah on 16 May, 2012 - 1:43 am
Need to find out if PowerLogic Circuit Monitor Series 2000 supports Modbus or not. Also, if they do, need to find out the modbus register maps for these meters.
By ercan erdas on 7 August, 2014 - 8:51 am
Dear Andreas, Could you please send your e-mail? So i can send attachments and other related...
By Andreas Sauerwein on 7 August, 2014 - 1:19 am
Hi Ercan ERDAS, We try to Implement such a application, and Schneider is not able to give us...
By Ercan ERDAS on 6 June, 2014 - 3:07 pm
We have similar application and if you write down your email i can send application architecture...
By Kevin on 6 June, 2014 - 8:49 am
Karl, You said that you are using the EGX100 in your plant and are able to access all the...
By Kevin on 6 June, 2014 - 7:50 am
Hello, I have a similar job to what you described above. How did you end up solving your problem...
Socomec DIRIS A40 Modbus RS485 Problem
Socomec DIRIS A40 RS485 ModBus communications problem
ROCLINK800 Floboss 107 MODBUS Slave configuration
I am trying to configure the Floboss 107 as a MODBUS Slave with specified register I/O parameters as specific MODBUS addresses.
By Harvard on 21 May, 2014 - 4:35 pm
The parameters you are requesting are IEEE Single Precision Floats which come out in one of four...
By kardel on 16 May, 2014 - 3:26 am
I got the same problem with flobos 103 and micrologix 1400. I have been able to read the modbus...
What are the advantages and drawbacks of using LQR (Linear Quadratic Regulator) design method? Does it always work?
By manoj on 20 May, 2014 - 1:29 am
please use Bryson rule.. that is best rule. by using this rule you can reach to some point and then...
Poll about Open Source DCS/SCADA system.
Posted by Robert Perez on 3 May, 2013 - 9:31 pm
Poll about if the industry is ready to start adopting open source DCS/SCADA systems.
Modbus Safe / ModSafe - Is it Modbus for safety related systems?
Interface to GE ModBus Concentrator
Trying to interface GE concentrator to Honeywell EBI
Prevent coking fuel oil nozzle
Found nozzles some particles like coking material in the fuel oil nozzle dip and caused exhaust temperature spread issue.
By Shabir on 12 February, 2014 - 1:14 pm
Hi Normally this will be happen in Dual fuel machine cocking is major problem So for further...
Prosoft PLX31 Gateway AB EIP to MBTCP
Posted by Tim from Kansas on 11 February, 2014 - 8:26 pm
Multiple IP addresses on Prosoft Gateway PLx31-EIP-MBTCP, can this be done?
Free/Open Source PID Auto-tuning Software
Looking for free auto-tuning software.
Arduino as a dc motor controler
Limits of Arduino as a servo controler
TDC200 to Linux machine communication
Posted by Bill Schwarz on 8 January, 2014 - 3:28 pm
How to transfer process data from Honeywell TDC2000 AMC to a Linux machine?
By pvbrowser on 9 January, 2014 - 3:44 am
If the is no software that can directly speak to Honeywell you may use PROFIBUS DP. On Linux we...