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Control.com topic...
PLCs
Topic: Continuous process industries, DCS questions.
from the ELECTRICAL department...
ABB acs800M
Originally posted by GARY on 2 July, 2014 - 2:01 pm
we are using acs800M drives we are loosing the capacitor banks regularly in the filter unit in the convertor side. what could be the reason for these regular blast outs of capacitors and how can we control it .
New Replies:
The ACS800M is only a controller. Can you provide the part# info for the drive and the filter?...
Topic: Local and wide area networking in factory automation.
from the Engineering department...
RS485 multidrop network drops after few days
Originally posted by P Paul on 3 July, 2014 - 11:58 am
Modbus connections drops after few days and it resumes by changing modbus parameters in slave device.
New Replies:
By Lynn August Linse on 3 July, 2014 - 1:21 pm -
Based on 25 years experience with RS-485, sounds to me like you have a floating ground between the...
Topic: PLCs and related questions.
from the Forum department...
Project ideas for getting into automation?
Originally posted by Rhonage on 15 February, 2014 - 9:59 pm
I'm learning from scratch to be an automation engineer. Where should I start?
New Replies:
There are simple tools (free and open source) and code for C and Pascal (Python hopefully soon) on...
Topic: PLCs and related questions.
from the Maintenance department...
Required IDEC PLC info
Originally posted by Laura Montiel on 8 January, 2008 - 1:53 am
Not familiar with IDEC PLCs.
New Replies:
Idec sells cables and also provides documentation on the pinouts. Why not go that route?...
I want to make communication cable for IDEC FC2A-C10A1 with pc. can you please provide me pin- out...
Topic: Continuous process industries, DCS questions.
from the Forum department...
master controller MPC 3000
Posted by vashstampede1321 on 2 July, 2014 - 4:00 am
Having problems looking for schematics for a MPC3000 microprocessor based master controller ..i hope someone could help me out..
Topic: PLCs and related questions.
from the Education department...
Function block programming tutorial
Originally posted by Ferris Oxide on 15 August, 2003 - 7:12 pm
Are there any good tutorials for programming PLCs using function blocks?
New Replies:
>Sometimes you just have to work the >hours, no matter what, and women, for >whatever...
Topic: PLCs and related questions.
from the Forum department...
Connection closing in Modbus-TCP
Originally posted by Satoshi Sakai on 30 June, 2014 - 6:54 am
I would like to know if Modbus-TCP connection should be opened/closed in every command sending or not.
New Replies:
By Lynn August Linse on 30 June, 2014 - 9:29 am -
It is not 'normal' behavior in the TCP/IP world, but some misguided engineers on early Modbus/TCP...
Posted by Matt Helm on 30 June, 2014 - 9:11 am
I have a receiving cushion that intermittently enters its down motion too early causing damage to the product. It is so intermittent that it's impossible to nail down the cause.
Topic: PLCs and related questions.
from the Automation List department...
PLC vs. Microcontrollers
Originally posted by Mubeen Ahmed on 13 October, 2002 - 10:38 am
are there any reasons why plcs are preferred over microcontrollers?
New Replies:
I've been trying to find a way to word this to my boss, thank you....
Topic: PLCs and related questions.
from the AUTOMATION department...
quantum cpu 434 12 A Firmware/exec update issue
Originally posted by genjua on 1 September, 2013 - 11:13 pm
I am unable to download exec into CPU 434 12 A.
its starts transferring exec into controller and after 1-2 minutes its stop with the error that time-out waiting response from the controller.
New Replies:
I have solved the issue! I wanted 1.29 bcoz the CPU was very old and Concept was not supporting...
Topic: PLCs and related questions.
from the maintenace department...
HIMA plc: downloading error
Posted by tn on 28 June, 2014 - 4:52 am
error code 166
Topic: Communications systems and equipment.
from the Automation department...
FC51 Danfoss VFD MODBUS
Originally posted by Derik on 7 September, 2009 - 2:12 pm
I need to control a FC51 Danfoss VFD with LS PLC.
I need to start , stop & jog the drives.
New Replies:
Hi, I have this problem too. I have set all the parameters to control the drive as modbus. I...
Topic: PLCs and related questions.
from the Forum department...
3 feeder system: PLC vs. Microcontrollers
Posted by dvigneshwer on 27 June, 2014 - 1:30 am
hardwired 3 feeder system with control system in a remote place
Topic: Power generation equipment control.
from the Forum department...
local workstation for gas turbine
Posted by MAZEN SHANABEASH on 26 June, 2014 - 6:07 pm
difference between ALLEN BRADLEY workstation cat no. 6160-PCD466A, and ALLEN BRADLEY workstation cat no. 6160-PCD2B
Topic: Continuous process industries, DCS questions.
from the Instrumentation department...
Instrument Control Loop
Posted by Waqar Ahmed on 26 June, 2014 - 3:18 am
Maintenance procedure of process control loop.
Topic: PLCs and related questions.
from the instrumentation department...
solartron 7915 flow computer
Posted by amir qadri on 25 June, 2014 - 11:02 am
solartron flowcomputer 7915 showing error message bad ram checksum error, but it is working normal, printer is continuous writing, bad checksum error.
Topic: Software, including programming, OS issues, etc.
from the Forum department...
Control MOXA IOLogik via TCP
Posted by Roberto on 24 June, 2014 - 10:54 am
Control MOXA IOLogik via TCP
Originally posted by Muhammad PERVAIZ on 21 June, 2009 - 4:19 am
how to update the PLC application to 140 CHS 11000 Hot stand-by module
New Replies:
Here is a link to the manual so you know how to do just about anything. ...
Topic: PLCs and related questions.
from the Forum department...
Siemens S5-130W
Originally posted by Mike Pennington on 15 June, 2014 - 7:48 pm
Help to connect a pc to a S5 130W
New Replies:
I would reiterate what I said before. Call your local Siemens distributor. They can tell you what...
Hi Bob Thanks for your help. We have had Siemens in to look at the problem. but because the...
Siemens has some windows software available for the S5. It seems to work OK. best bet is to just...
Topic: PLCs and related questions.
from the Automation List department...
Comparing PLC and DCS
Originally posted by Anonymous on 6 May, 2004 - 6:34 pm
I am new in the field of automation. Could anybody tell me the difference between PLC and DCS other than I/O handling capacity?
New Replies:
The difference between PLC and DCS has narrowed but not completely wiped out. I mean we are using...
Topic: PLCs and related questions.
from the cocontrol and instrumentation department...
IS EARTHING NECESSARY FOR AN SMPS WHO'S INPUT IS FROM AN UPS?
Posted by SUDHEESH V on 17 June, 2014 - 12:59 am
IS EARTHING NECESSARY FOR AN SMPS WHO'S INPUT IS FROM AN UPS?
Topic: Communications systems and equipment.
from the Department of Redundency Department department...
Using OPC to communicate with GE MKVIe
Originally posted by Brian on 4 June, 2014 - 2:31 pm
I'm trying to find out if anyone is using OPC to talk to a GE MKVIe from an ABB INFI90 DCS System.
New Replies:
Brian and CSA, I can tell you that I have worked at two sites now and have configured a...
CSA, We've not been able to talk directly to the TCP using Modbus yet. We're going through the...
Brian, My experience may be a little dated (I haven't seen a Mark VIe installation for over a...
Topic: Local and wide area networking in factory automation.
from the Forum department...
Triconex PLC supervision (emulator)
Posted by winnakken on 13 June, 2014 - 8:06 am
Connect Tristation to InTouch
Originally posted by Ben Kinsella on 13 June, 2008 - 7:06 pm
Is it possible to plug and play?
New Replies:
Modbus does not support auto discovery...
Topic: Engineering and workplace issues.
from the Forum department...
Transformer Protection
Posted by ete on 12 June, 2014 - 1:21 am
Need source to learn about transformer protection
Posted by SUDHEESH V on 12 June, 2014 - 12:24 am
IS EARTHING NECESSARY FOR AN SMPS WHO'S INPUT IS FROM AN UPS?
Topic: PLCs and related questions.
from the Tech department...
Modbus slave failures
Originally posted by Derek on 25 March, 2011 - 1:01 am
Modbus failures when adding more than one slave
New Replies:
Concerning the transmitter. Poll delay: delay between two polls. Silent Time or Write delay:...
Posted by Fyzal on 10 June, 2014 - 10:00 pm
Thermocouples measurement to <C> processor had fault after lightning strike.
Originally posted by AYH on 9 June, 2014 - 11:22 pm
my compactlogix battery is ok, but I lose the program when I recycle the power
New Replies:
To some extent it matters what you mean by "lost the program". Does it go to the...
Originally posted by Carlos Soriano on 20 September, 2012 - 10:40 pm
PLC Controllogix 5000 slow ethernet response
New Replies:
I too am having this issue! Compactlogix 1769 l35e and wonderware intouch software. We replaced a...
Topic: PLCs and related questions.
from the The Unknown Entity department...
One control variable for two loops
Originally posted by TheController on 15 May, 2014 - 5:21 pm
Can we have one control variable control two different loops?
New Replies:
By Heinrich Baumann on 9 June, 2014 - 3:52 pm -
I would suggest split range control. Output of the PID controller: 0 - 10 % Open valve from...
Topic: PLCs and related questions.
from the Instrumentation department...
Local Fault on SLC 500/05 ASB
Originally posted by Casualguy on 4 June, 2014 - 12:08 am
Regarding local fault declaration on SLC 500 ASB
New Replies:
Thanx Bob for your response. Let me clear something first, by chassis i meant the back plane of...
Topic: Local and wide area networking in factory automation.
from the HART multidrop department...
HART multidrop reliability
Posted by Franco Kew on 9 June, 2014 - 12:52 am
If one HART device fails, will the subsequent HART devices unseen from the system?
Posted by Ben on 7 June, 2014 - 2:34 pm
Reading a voltage from a battery in to an analog input on my Siemens logo
Topic: PLCs and related questions.
from the Advice for a newb department...
Modbus "pollsets"
Originally posted by GD on 5 June, 2014 - 6:27 pm
Need advice on creating pollsets in Isagraf
New Replies:
Perhaps by telling us what you are generating the pollsets on? Regards cww...
Why do you need to use 3xxxx registers? These are "read-only" as they are set by the...
Topic: PLCs and related questions.
from the Forum department...
DOX5 communication error
Originally posted by karikob on 9 May, 2014 - 12:05 pm
DOX5 communication error
New Replies:
hi, you have to reconfigure the type of sattscope model or "target". i had a similar...
Topic: PLCs and related questions.
from the Getting Around Unknown Passwords department...
Old A-B SLC Controller
Posted by Paul D. on 4 June, 2014 - 10:28 am
Password protected program and no offline file.
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