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Control.com topic...
PLCs
Originally posted by AK on 28 January, 2014 - 12:17 pm
Establishing communication with A-B PLC 2/30 and reading/writing data from/to this PLC using OPC server
New Replies:
Hi AM, In my opinion, there are 2 possibilities : 1. As Gerald guessed, you dont have...
First thing I would check: Does the version of RSLinx support the communication that you wish to...
Topic: Continuous process industries, DCS questions.
from the Forum department...
VFD Control using Pump Smart only
Posted by ASK73 on 31 January, 2014 - 6:17 pm
Pump control using Pump smart Only
Topic: PLCs and related questions.
from the dept of redunancy dept department...
PLC remote communications
Originally posted by rookieca on 14 December, 2013 - 11:48 am
Remote communications of machine PLC, without going on to customer network
New Replies:
> The company I work for uses a Citrix application to present the control > systems (CS) to...
> You might want to google COSY141 VPN router. Thanks for that info! I just added a link to...
Topic: Software, including programming, OS issues, etc.
from the Forum department...
Modbus and Safety Loops
Originally posted by Aman on 31 January, 2014 - 7:45 am
If modbus suitable for safety loops
New Replies:
By Lynn August Linse on 31 January, 2014 - 9:32 am -
I doubt you'll find anyone willing to certify Modbus, plus your insurance company won't like...
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:
annapurna stated: "Plc [sic] requires an communication interface and DCS has inbuilt...
Plc requires an communication interface and DCS has inbuilt communication protocol....
Topic: Communications systems and equipment.
from the Forum department...
AB Micro850 Modbus TCP programming
Posted by Ronny R. on 25 January, 2014 - 10:41 am
Trying to Connect a Parker SSD 6053 ENET module to a ALLEN BRADLEY Micro850 over Modbus TCP
Topic: Software, including programming, OS issues, etc.
from the Communications department...
How do OPC works?
Originally posted by Daniel on 23 January, 2014 - 9:09 am
How do OPC works and what are the differences with other protocols?
New Replies:
In OPC, the OPC server has the low-level driver that talks the comm protocol of the field device. ...
OPC is only open for those who pay for. There is an old OPC that is based on: ...
Originally posted by ASK on 24 January, 2014 - 5:24 am
I have converted EM6400 RS485 port to RS232 and configured all setting as per documents and getting error "Modbus exception code 02 returned: Illegal data address"
New Replies:
By Lynn August Linse on 24 January, 2014 - 10:49 am -
Either you are asking for a register which doesn't exist, or you are trying to read mis-aligned...
Topic: PLCs and related questions.
from the Android department...
Writing String Over PLC from Android
Posted by Nivas on 24 January, 2014 - 1:29 am
How to Write String on TCP plc from Android Device?
Topic: Local and wide area networking in factory automation.
from the Forum department...
Ethernet/IP Specification
Originally posted by Tanaya on 23 January, 2014 - 1:39 am
Ethernet/IP specifications
New Replies:
I don't know that there is anywhere else to get that. There's plenty of protocols that don't...
Topic: Information resources, documentation.
from the Forum department...
Optimal Root Loci technique
Posted by Road_King on 21 January, 2014 - 6:05 pm
I need some notes on the Letov-Chang methods of locating optimal poles in the Root Loci.
Topic: PLCs and related questions.
from the Engineering department...
Concept of Virus in PLCs Software
Originally posted by Syed on 20 May, 2010 - 7:52 am
Is Virus Concept also happen in PLC Software?
New Replies:
If your PLC is isolated (not on a network), then the only feasible avenue for infection is the...
Posted by Modbus on 21 January, 2014 - 5:42 am
Connecting Premium PLC With Siemens PLC Via Modbus TCP/IP
Topic: PLCs and related questions.
from the Forum department...
Modbus TCP to PLC using vb.net
Originally posted by Steve Sodzi on 7 May, 2010 - 10:30 am
visual basic code to write to a Schneider Premium PLC via TCP. The only problem is that i cannot read the response back from the PLC.
New Replies:
thank u very much for code. i can read 129 word in this program block. I change this...
Topic: PLCs and related questions.
from the Automation department...
Quantum I/O map
Originally posted by Luiz Rodriguez on 18 January, 2014 - 8:54 am
Quantum CPU I/O map addressing overlap
New Replies:
No. The 16 input modules use the 17th register for diagnostics. If the addressing could be done...
Topic: PLCs and related questions.
from the software installation department...
how to install CFG-CMD-KM-U
Originally posted by fadi fakhoury on 4 January, 2014 - 6:16 am
how to install the interbus s configurator (CFG-CMD-KM-U)
New Replies:
Hi, You need to have Phoenix IBSCMD installed on your machine first. The klockner-Moeller...
Topic: Local and wide area networking in factory automation.
from the Engineering department...
Network nodes voltage drop
Originally posted by Chris Mokgolo on 2 January, 2014 - 4:35 am
Network nodes voltage drops after y-switch
New Replies:
By Santhosh Rapilane on 16 January, 2014 - 10:45 pm -
Try installing ASi Network terminating resistor. I too had this problem and its very difficult to...
Originally posted by PT on 27 December, 2013 - 1:08 am
Do Modicon PLC M340 support more then 1 client over Modbus TCP/IP
New Replies:
Thanks for sharing useful information....
Topic: PLCs and related questions.
from the Utilities department...
ladder diagram for a 2 pump alternator
Originally posted by Ctrldan on 9 January, 2014 - 2:18 am
Looking for an example of a ladder diagram for a 2 pump alternator.
New Replies:
Dan... send your e-mail address to: cepsicon@aol.com Phil...
Yes, I can use Boolean Logic in the ladder diagram. Thanks, Dan...
Dan.. can you convert a conventional ladder-diagram into Boolean logic? If so, I can send you...
Phil, Thanks for your reply. The PLC I am working with is a A-B Micrologix 1400 B. It seems...
Cntrldan... as a start try: http://www.control.com/thread/1026154799 Regards, Phil Corso ...
Hi, Just a general reminder, there is an archive of example PLC programs submitted by a variety...
Topic: PLCs and related questions.
from the Forum department...
Advantage of Wet Contact vs Dry Contact
Originally posted by Neo on 14 January, 2014 - 3:46 am
What are the advantages of Wet contact and Dry contact over one another?
New Replies:
Newbie, There is a 'Search' field cleverly hidden in the far right corner of the Menu bar at the...
Topic: Software, including programming, OS issues, etc.
from the Software department...
Importing MODBUS code into Microcontroller
Posted by tarun on 14 January, 2014 - 2:39 am
modbus interlinking to a microcontroller
Originally posted by Mark on 7 January, 2014 - 11:34 am
Confirm native communications capability between RXi controllers
New Replies:
Wow, I totally missed the new Rxi. I asked around and merely confirmed what you know, no EGD...
> I'm not an RX3i user or expert, but I'm pretty sure you > can do controller to controller...
I'm not an RX3i user or expert (I'm a Mark VIe guy), but I'm pretty sure you can do controller to...
> Need to confirm that the only way for a brand new 2013 RXi Controller can communicate with...
Topic: PLCs and related questions.
from the gad trubine control system department...
moog servo valve operation
Originally posted by VK on 1 November, 2012 - 10:30 am
How does a MOOG servo valve operate?
New Replies:
Antonio Perez, You are most welcome, and thank you for taking the time to say thanks!...
Thanks alot CSA for taking the time to share your knowledge and experience with us, my respects to...
Topic: PLCs and related questions.
from the service provider department...
GE Fanuc RX3i RMX module download problems
Posted by ALI on 11 January, 2014 - 1:33 pm
RX3i PLC only downloads on disable setting
Topic: PLCs and related questions.
from the Water Treatment department...
Sodium Hypochlorite injection Control Help
Originally posted by jmonter on 2 January, 2014 - 3:25 am
I currently have a job with a customer that wants to operate an injection pump for Sodium Hypochlorite injection using a PID.
New Replies:
See my blog: http://waltboyes.livejournal.com/223821.html...
Topic: Communications systems and equipment.
from the sonatrach department...
ViproS activated mismatch alarm
Originally posted by toumi on 8 January, 2014 - 8:59 am
ViproS activated mismatch alarm and reset not working.

New Replies:
Hello, The <S> VPRO is also called <Y>. Since the VPRO trips the turbine if an...
Topic: PLCs and related questions.
from the Forum department...
matlab modbus
Originally posted by Ferit Buke on 8 January, 2014 - 10:33 am
I am trying to communicate between Matlab and PLC by MODBUS UDP. I can get message from PLC but I can not send a message to the PLC
New Replies:
I would verify the function code 23 is supported. Most devices do not support this function code,...
The PLC is master. matlab is slave. Thus matlab must only answer when PLC has made a request. ...
Topic: PLCs and related questions.
from the Forum department...
MODBUS ASCII
Posted by modbus on 8 January, 2014 - 10:22 pm
MODBUS ASCII USING ICP-DAS 7552 CONVERTER ON SIEMENS S7-300
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