Info for remote connection to PLC
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By Jeremy Pollard on
13 July, 2018 - 7:34 pmIf 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 amHow 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?
2
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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.
1
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Adding an Output Card to S7 300 PLC
Posted by I&C Engineer Ahmed K. Yaseen on
9 July, 2018 - 3:17 amLooking for advice on adding and programing an output card
1
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Going Online with Siemens S7 PLC
Posted by Lalo Quera on
4 July, 2018 - 4:03 amProblem 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.
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MicroLogix 1400 with Absolute Encoder
Looking for help programming absolute encoder on 1400
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By Jeremy Pollard on
4 July, 2018 - 11:46 amInvestigate the GCD instruction... it is a grey code converter Cheers from: Jeremy Pollard, CET...
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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.
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By Mark on
3 July, 2018 - 2:05 pmHello, 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?
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By mhwest on
3 July, 2018 - 7:42 amEven with EPIC you will have recurring issues with locked up logic. For some reason GE seems to...
By
CSA
on
2 July, 2018 - 3:07 pmCongratulations on your decision! I would like to add that unless you have EPIC software you can...
By
ME42
on
4 June, 2018 - 6:07 pmqhogan1 Good comments from CSA. I would also add on a few more things. Note: I am big advocate...
By
CSA on
1 June, 2018 - 4:04 pmqhogan1, Password protection is not closed architecture or black box. It's possible your site...
4
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Communication LED in MODBUS
Is Communication LED necessary in MODBUS?
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By Bob Peterson on
14 June, 2018 - 10:44 pmThere is no requirement that it be there. Usually it means that there is some kind of valid modbus...
1
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PCMI Diagnostic Alarm in Mark VIe
PCMI diagnostic alarm in Mark Vie system
1
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Honeywell HC900 Application File Download
Honeywell HC900 "required device type DLL is missing or corrupted"
29
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Free Modbus Driver in .Net
Looking for a free modbus driver that will work with .NET.
11
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Virus Infection via serial Modbus
Posted by Rob Burghard on
2 June, 2018 - 4:35 amIs it possible for an infected powermeter being the Modbus slave to infect its master via a serial connection?
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By Rob Burghard on
10 June, 2018 - 1:19 pmThank 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 amIt 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 pmtrying 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 pmThank 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 pmThank you. Perhaps my question wasn't clear. Let's say this powermeter has an infected OS. Can the...
11
replies
Best PLC school in Toronto Canada??
Please let me know if you have been in any of the PLC teaching colleges in Toronto.
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By Ryan MacKellar on
20 June, 2018 - 9:31 amThe 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
11
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Square D SY/MAX 400 PLC Connection Problem
Unable to go online with Sy/Mate Plus software to download program
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By Ryan on
13 June, 2018 - 3:57 pmCame across this thread, currently working with a SyMax (have an XP laptop with WINMATE software). ...
10
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TwinCAT 3 Error When Switched to Run Mode.
TwinCAT 3 error when switched to Run Mode.
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By AdHe on
12 June, 2018 - 3:41 amMy Situation is exactly the same! (Just the error Code is 0x1016, but the message is exactly the...
Trouble downloading previous versions.
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By Bob Peterson on
10 June, 2018 - 3:19 pmYou 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 pmHi 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 amI've had RSLogix / Studio 5000 for ages, so I'm not in the same scenario. I'm afraid you're going...
1
reply
Protecting Thermal Valves in an Extinguishing System
Thermal protection for valves in an extinguishing system
29
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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?
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By James williams on
7 June, 2018 - 6:48 pmWell 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
1
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Schneider Modicon M221 Coil Address
Problem writing to a single coil on a Schneider PLC using Libmodbus library
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By Andrew on
5 June, 2018 - 7:20 amActually, 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 amHow I can make new function block in Procontrol P13 ABB DCS system? Is it possible?
on 10 July, 2018 - 6:05 am
on 9 July, 2018 - 4:36 pm
on 26 June, 2018 - 11:45 am