Info for remote connection to PLC
By Jeremy Pollard on 13 July, 2018 - 7:34 pm
If you have a work station in the plant already I would suggest evaluating MobiKEY from Route1 .......
Interfacing B&R PLC with CP476 Central Processor
Posted by Nivin Clinton on 13 July, 2018 - 9:51 am
How to communicate between B&R PLC and B&R CP476 Central Processor
ABB AC450 PROFIBUS Interface to DIRIS Meters
ABB AC450 PROFIBUS interface to Socomec DIRIS Meters
Loading an Existing Program onto PLC Melsec F2 40MR
What interface/software I need to load existing program (kept on my pc) onto an old PLC Melsec F2 40MR?
All LED Flashing Simatic S7 400H CPU
All LEDs of both CPU of siemens S7 400H PLC started flashing while activating winCC of operator station.
Adding an Output Card to S7 300 PLC
Posted by I&C Engineer Ahmed K. Yaseen on 9 July, 2018 - 3:17 am
Looking for advice on adding and programing an output card
Going Online with Siemens S7 PLC
Posted by Lalo Quera on 4 July, 2018 - 4:03 am
Problem with going online with my Siemens S7-1200 PLC
Communicating with STN Atlas Geamar 120ISL/Lyngsoe Marine
Looking for a way to communicate with Geamar 120ISL from STN Atlas. Built 1999.
MicroLogix 1400 with Absolute Encoder
Looking for help programming absolute encoder on 1400
By Jeremy Pollard on 4 July, 2018 - 11:46 am
Investigate the GCD instruction... it is a grey code converter Cheers from: Jeremy Pollard, CET...
SCADA, VB Datafetching from PLC
How to get data from PLC to my VB software through RS 485; have only 1 RS 485 port available.
By Mark on 3 July, 2018 - 2:05 pm
Hello, According to the user manual the Delta EX2 supports MODBUS ASCII. A VB MODBUS ASCII...
The generator owners have decided to upgrade our control systems and also go from one to two systems. Suggestions for a total plant solution?
By mhwest on 3 July, 2018 - 7:42 am
Even with EPIC you will have recurring issues with locked up logic. For some reason GE seems to...
on 2 July, 2018 - 3:07 pm
Congratulations on your decision! I would like to add that unless you have EPIC software you can...
on 4 June, 2018 - 6:07 pm
qhogan1 Good comments from CSA. I would also add on a few more things. Note: I am big advocate...
on 1 June, 2018 - 4:04 pm
qhogan1, Password protection is not closed architecture or black box. It's possible your site...
Communication LED in MODBUS
Is Communication LED necessary in MODBUS?
By Bob Peterson on 14 June, 2018 - 10:44 pm
There is no requirement that it be there. Usually it means that there is some kind of valid modbus...
PCMI Diagnostic Alarm in Mark VIe
PCMI diagnostic alarm in Mark Vie system
Honeywell HC900 Application File Download
Honeywell HC900 "required device type DLL is missing or corrupted"
Free Modbus Driver in .Net
Looking for a free modbus driver that will work with .NET.
Virus Infection via serial Modbus
Posted by Rob Burghard on 2 June, 2018 - 4:35 am
Is it possible for an infected powermeter being the Modbus slave to infect its master via a serial connection?
By Rob Burghard on 10 June, 2018 - 1:19 pm
Thank you! The question is a very fundamental but real one: Can an infected Modbus slave infect...
By Fred Loveless on 6 June, 2018 - 10:57 am
It is possible but highly improbably that a virus could be passed up to the PC from the slave. The...
By Luca Gallina on 5 June, 2018 - 7:11 pm
trying to shed some light: 1. a Modbus Master polls for DATA. 2. the Modbus Slave (regardless...
By Rob Burghard on 2 June, 2018 - 5:33 pm
Thank you. Can we conclude then in general that it is impossible for a Modbus master to get a virus...
By Rob Burghard on 2 June, 2018 - 12:26 pm
Thank you. Perhaps my question wasn't clear. Let's say this powermeter has an infected OS. Can the...
Best PLC school in Toronto Canada??
Please let me know if you have been in any of the PLC teaching colleges in Toronto.
By Ryan MacKellar on 20 June, 2018 - 9:31 am
The PLC Technician online program from George Brown is a pretty good option. ...
Retrofitting/upgrading MARK IV control system with Siemens to gain MARK VIe benefits
Square D SY/MAX 400 PLC Connection Problem
Unable to go online with Sy/Mate Plus software to download program
By Ryan on 13 June, 2018 - 3:57 pm
Came across this thread, currently working with a SyMax (have an XP laptop with WINMATE software). ...
TwinCAT 3 Error When Switched to Run Mode.
TwinCAT 3 error when switched to Run Mode.
By AdHe on 12 June, 2018 - 3:41 am
My Situation is exactly the same! (Just the error Code is 0x1016, but the message is exactly the...
Trouble downloading previous versions.
By Bob Peterson on 10 June, 2018 - 3:19 pm
You can have as many version of RSLogix 5000 loaded on your computer as you want. I bet there is a...
By Ikhtiander - on 10 June, 2018 - 2:16 pm
Hi McCaber, I try myself and was able to find any available version of RSLogix 5000 or Studio...
By James Ingraham on 10 June, 2018 - 11:13 am
I've had RSLogix / Studio 5000 for ages, so I'm not in the same scenario. I'm afraid you're going...
Protecting Thermal Valves in an Extinguishing System
Thermal protection for valves in an extinguishing system
High leg on 3 phase power
I have 3 phase power that has a high leg of 211 volts to ground. The other two legs are 120 volt to ground. Is it fine to run a three phase machine on this voltage?
By James williams on 7 June, 2018 - 6:48 pm
Well Said. Not to say that we all didnt have to learn from someone but this stuff is not a good...
Ingersoll Rand Inlet Valve Problems
Getting a "inlet valve rotated" error code on a 1990 SSr-Ep-75
Schneider Modicon M221 Coil Address
Problem writing to a single coil on a Schneider PLC using Libmodbus library
By Andrew on 5 June, 2018 - 7:20 am
Actually, M221 returns error ILLEGAL FUNCTION (code 1). That means PLC doesn't support function...
Make New Function Block in ABB Procontrol P 13-P14
Posted by amin.nzh on 3 June, 2018 - 9:43 am
How I can make new function block in Procontrol P13 ABB DCS system? Is it possible?