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Tuesday, October 23, 2018
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PLCs - Topic Page
CP1430 Wincc Connection
Posted by taheri_az on 20 October, 2018 - 5:28 am
Connecting CP1430 TF transport connection to Wincc using Ethernet
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Registers in Modbus Communication
Posted by pauljay on 11 October, 2018 - 5:56 am
Registers read 2 bytes and it was already identified. What if the byte you need to read is byte 5 to 8, what will be the register number?
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By koen_verschueren on 19 October, 2018 - 2:31 am
Yes you can but you need to filter the correct bytes on the receiving end. If you need byte 1 to...
By David_2 on 18 October, 2018 - 4:27 pm
Yes, you can use Function Code (FC) 03 to read multiple Holding Registers. The format of the FC...
By pauljay on 17 October, 2018 - 4:36 am
Hi, I have additional questions about Modbus registers. I just want to ask. If you're using...
12
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TwinCAT 3 Error When Switched to Run Mode.
Posted by IngSAgius89 on 28 January, 2015 - 9:36 am
TwinCAT 3 error when switched to Run Mode.
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By cobwebcraig on 18 October, 2018 - 4:38 am
elevated command prompt run the following :- bcdedit /set UseLegacyApicMode yes bcdedit /set...
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Does a control valve always needs output signal from positioner?
Posted by Assylbek on 15 October, 2018 - 4:16 am
Whether to install or not additional signal from positioner.
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By Assylbek on 18 October, 2018 - 1:44 am
I'm sorry if my question was unclear. The question is: usage of feedback from valve to DCS. ...
By dwpatterson on 17 October, 2018 - 3:21 am
Your question was unclear if it was about using positioners on control valves or using position...
By Assylbek on 17 October, 2018 - 1:57 am
Thank you very much for your reply! Yes, we use valves with positioners (or actuator has a...
By d on 16 October, 2018 - 2:57 pm
Valve position monitoring is only used in rare cases. Use of a "positioner" is another...
By dwpatterson on 16 October, 2018 - 3:49 am
To use positioners or not will depend on the type, size and service of your control valves and the...
Data Acquisition Cards
Posted by mohsen56 on 14 October, 2018 - 3:50 am
What is the relation between accuracy and resoulution in a data acquisition CARD or PLC?
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Instrument Earth and Plant Earth
Posted by vwb5047 on 7 October, 2018 - 4:09 am
Guidance related to grounding/earthing cable routing?
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By vwb5047 on 13 October, 2018 - 12:01 pm
Good day, Thank you for your reply! It was very helpful....
By CSA on 9 October, 2018 - 4:16 pm
vwb5047, In all of the plants and control rooms and marshalling cabinets/rooms I have worked in,...
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External Mismatch Alarm in Triconex AO Card
Posted by Sharmagx on 3 October, 2018 - 12:01 am
"External Mismatch" Alarm in Triconex AO Card
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By ALSAEED on 13 October, 2018 - 5:43 am
>All AO card in the Triconex are showing External Mismatch >Alarm in the Enhanced Diagnostic...
By dwpatterson on 12 October, 2018 - 3:01 am
What is the model# and type of AO card? Thx...
3
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Allen-Bradley Ethernet to Fanuc CNC
Posted by David on 20 October, 2014 - 11:26 am
Communicating to Fanuc CNC controller from Allen-Bradley Compact Logix???
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By Santaji on 12 October, 2018 - 2:24 pm
You can use FANUC FOCAS library and develop your own application in Microsoft Visual Studio....
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Logix 5561 Fault Issue
Posted by sahaya on 6 October, 2018 - 7:20 am
Logix 5561 no communication
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By James Ingraham on 11 October, 2018 - 5:30 pm
The battery in the processor was dead. When you lost power, the program was erased, since the...
By TheBurnerMan on 11 October, 2018 - 10:35 am
I recommend you to google the manual of this CPU. There is very likely a section where the...
12
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Best PLC school in Toronto Canada??
Posted by ConWiz on 28 October, 2004 - 3:56 pm
Please let me know if you have been in any of the PLC teaching colleges in Toronto.
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By Amed on 10 October, 2018 - 7:05 pm
How thorough is the GB college PLC online program? Will that be enough to work as a PLC technician...
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ESD system and time delay in closing valves
Posted by hisham on 15 August, 2009 - 1:59 am
ESD control logic and time delay when closing valves
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By Ahmed Attia on 8 October, 2018 - 11:42 pm
My copy of API RP 14C is the Seventh Edition, March 2001. The paragraph that mentions the 45...
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Why is there no safe communication protocol (SIL 2/3) for Modbus?
Posted by Dumas on 8 October, 2018 - 5:13 am
Something like ProfiSAFE for Profinet or Failsafe over Ethercat (FSoE).
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By Mark on 8 October, 2018 - 12:03 pm
Hello, >More importantly, are there any workarounds to make modbus >capable of SIL 2/3? ...
TOTEM Finite State Machine Information - Reading from a Input Register
Posted by AndrewC on 8 October, 2018 - 9:35 am
I have been given a datasheet for a CHP unit. I am looking how I can get the multistates?
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Excessive Capacitance Alarm in Triconex DO Card Point
Posted by Sharmagx on 2 October, 2018 - 11:52 pm
"Excessive capacitance" alarm was received in Triconex DO card point. What could be the reason?
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By dwpatterson on 7 October, 2018 - 4:53 pm
It would help to know the model of DO card. Triconex DO cards have an Output Voter Diagnostic...
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Communication between <C> and <Q>
Posted by Farid26 on 3 October, 2018 - 7:40 pm
Communication between <C> and <Q>
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By CSA on 4 October, 2018 - 2:09 pm
Farid26, When <C> isn't at A7, then it can't access its I/O--which includes the inputs and...
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Honeywell TK-FTEB01 C200 Card
Posted by RThomas on 30 November, 2010 - 6:14 pm
Need a Quick Diagnosis of Honeywell FTE Bridge card
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By Mr. KALPESH NIMBARK on 3 October, 2018 - 10:02 am
I have in stock Brand new HONEYWELL ETHERNET MODULE TK-FTEB01 51309512-175 with original factory...
3
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Square D Micro 1 Software
Posted by alchartier on 24 September, 2018 - 9:56 pm
Looking for software to backup a Square D Micro 1 plc.
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By support on 2 October, 2018 - 12:17 pm
PLCcable.com sells the cable, www.plccable.com. The software is WindLDR and I run it on Windows 10....
By chud on 27 September, 2018 - 3:33 am
found this link on this forum https://control.com/thread/1026184484#1026184484...
By SteveMyres on 24 September, 2018 - 11:55 pm
They were private label Idecs. I wonder if the current generation of Idec software will talk to...
GE Fanuc PLCs
Posted by Crowfoot on 30 September, 2018 - 7:33 am
Need help with a GE Fanuc PLC
How to Setup Bently Nevada Proximity Sensors
Posted by msohaibbutt on 29 September, 2018 - 1:43 pm
We have a compressor which has Four Bently Nevada Proximity Sensors. We have no idea how to interface and control these via PLC. We have not used these transducers before.
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Surge Capacitors
Posted by ansmehmood on 24 September, 2018 - 12:51 am
What is the purpose of surge capacitors in generator circuit breaker?
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By d on 29 September, 2018 - 5:12 am
As charge stoarge components, tend to hold instantaneous voltage constant. Zero volts before...
2
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Mark V Gas turbine
Posted by mazenshanabeash on 24 September, 2018 - 7:46 pm
Exhaust temperature increases during gas turbine acceleration
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By tinaxu on 29 September, 2018 - 4:20 am
Gas turbine to measure gas. Diesel should measure use liquid turbine. They are different products,...
By CSA on 25 September, 2018 - 12:16 pm
So, I'm presuming the gas turbine is a GE-design Frame 5 or Frame 6 heavy duty gas turbine with a...
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SCADA, VB Datafetching from PLC
Posted by sreerajpv on 30 June, 2018 - 4:47 am
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 Rene Saade on 28 September, 2018 - 12:39 pm
There can only be one master on a RS485 Modbus trunk. Solution is to buy a gateway. Advantech...
PLC Matsushita NAiS fp3 Cable
Posted by mfaisalrehman on 28 September, 2018 - 12:28 pm
PLC Matsushita NAiS fp3 cable DB9 (RS232) to DB15 (RS422)
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Adding New I/Os to Mark VI
Posted by se_lain on 23 September, 2018 - 3:58 pm
Trying to add a new output to Mark VI to relay IGV opening to DCS over 4-20 mA. Have gone through the manuals and have come up with a basic strategy. Need an experienced individual to kindly vet it for me.
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By ME42 on 28 September, 2018 - 1:31 am
Sorry for the late response. Demigrog is right. If you aren't putting any point on EGd, then...
By demigrog2 on 24 September, 2018 - 3:38 pm
No need to update the SDB. If it isn't on EGD or an Alarm, the new variable doesn't change the SDB...
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Communicating with STN Atlas Geamar 120ISL/Lyngsoe Marine
Posted by simpa on 5 July, 2018 - 12:48 pm
Looking for a way to communicate with Geamar 120ISL from STN Atlas. Built 1999.
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By Rene Saade on 27 September, 2018 - 10:12 am
Hi, We can look into this for you for a small fee. If it interests you, please contact me at...
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PLC with Remote Access
Posted by xtal_001 on 19 September, 2018 - 4:23 pm
I have built panels for 30 years, but this is the first time I have been requested to give remote access. Need advice on how to tie a PLC into the web. HMI? or thin server? or?
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By Chud on 27 September, 2018 - 3:29 am
I would just focus on the hmi. If must have a Webserver, option to email alarms, and a data logging...
By Ecaca_TJ on 25 September, 2018 - 9:44 pm
Hey Mike, Sounds like you're after a web SCADA. Check out the IntegraXor SCADA...
By xtal_001 on 20 September, 2018 - 12:06 pm
Thanks guys! Right now the system there is not working, and I am not expected to use any of it....
By onyxindustries on 20 September, 2018 - 7:55 am
there are devices that could add functions the existing PLC/HMI aren't capable of. The first one...
By jazzplayermark on 19 September, 2018 - 7:38 pm
An easy way to do this is to use a Red Lion data station or HMI with web server capabilities. You...
By Steve Myres on 19 September, 2018 - 5:47 pm
If by Automation Direct PLC's you mean the Koyo Direct Logic series, it's certainly doable, but...
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MicroLogix 1400
Posted by StoopidEngineer on 30 July, 2018 - 2:22 pm
Any truth to the rumors the MicroLogix 1400 is being phased out?
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By Bob Peterson on 26 September, 2018 - 6:24 pm
Rockwell is not about to "exclude" themselves from the small application market. they...
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Eurotherm PAC and Wonderware
Posted by Bhargav Purohit on 6 October, 2012 - 12:39 am
Reading the status of current running step using scada/wonderware.
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By Penny Parker on 19 September, 2018 - 9:02 am
I know this is many years later but I'd like to add information to this post in case anyone sees it...
Creating .cid File
Posted by ST3000 on 17 September, 2018 - 11:18 am
Siemens PowerLogic G3200 .cid file creation
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Controlling and Testing a Valve
Posted by sanji66 on 10 September, 2018 - 5:50 am
Control the valve and test pressure rate of the flow
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By David_2 on 14 September, 2018 - 2:13 pm
Your link is for an Output board that might (maybe) could drive a valve actuator, depending on the...