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Slow down communication between GE 90-30PLC which are using COMM_REQ SRTP channel commands. and these are communicating over ethernet through cellular modems. the data plan on the cellular modem has a limit of 5GB only.
Mark VI not working with a VCMI board replacement!!
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By Lionel on 19 May, 2013 - 12:37 pm -
Salem have acknowledged problems with IS215VCMIH#B and H#C. The issue is with socketed IONET...
Quantum PLC Communications
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By Brendonh on 19 May, 2013 - 7:43 am -
With 2 quantums you map index will be 0. its like an offset setting. your slot ID will be 254 if...
Why 250mA fuse for 4-20mA analog input?
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25V / 250 ohms = 100 mA, so a 250 mA fuse is not going to do this job - 50 mA might....
I suspect that a fuse installed in a 4-20mA loop is an attempt to protect an analog input on a 2...
No I am sure it is 250mA fuse for each 4-20mA input and not the 250ohm resistor....
I am sure it is 250mA for each 4-20mA input.
...
Hi,
Could it be 250ohm resistance?
If it is, the purpose would be to convert to 1-5VDC from...
By Cris on 13 May, 2013 - 10:23 pm -
Are you sure about 250mA fuse is in line with 4 ~ 20mA signal or you have a module which has no of...
Interesting topic, we too eager to know.
Take care
G.Rajesh...
Thanks Bob & Bruce for your answers.
Bruce,
its clear from your and Bob answers that the...
Many 4-20 mA transmitters will pull 25 mA in the event of an internal fault, or if a seriously...
By Bob Peterson on 9 May, 2013 - 5:58 pm -
NEC fusing is not really applicable to this kind of thing as these are neither feeder or branch...
IC693MDL module not giving output after programming.
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By Russ B on 17 May, 2013 - 4:17 pm -
Output modules are typically powered with an 'outside' source independent of the PLC. If the output...
Serial interface between Allen Bradley's Control Logix and Emerson Ovation DCS
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By Pons Tanawan on 17 May, 2013 - 1:46 am -
Ann, how about the Nexus1250 its provided with RS485 communication port that could support A...
Action handler Fault from GE Fanuc PLC
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By Russ B on 15 May, 2013 - 1:07 pm -
> this all the informations i have about this alarm, and i don't find any thing
> in manuals...
my friend,
this all the informations i have about this alarm, and i don't find any thing in...
By Russ B on 6 May, 2013 - 9:20 am -
One will need MUCH MORE information to help you with this.
You may be better and quicker served...
Unable to connect Wonderware Intouch View to A-B CompactLogix 1769-L32E
Only one Analog input module (Model no-6ES7 331-7KF02-0AB0, Siemens) is frequently burning during thundering.
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By EPD on 15 May, 2013 - 3:51 am -
Thank you very much for your answer. Now replying answer of the question.
1. Yes, there are 04...
By sms on 15 May, 2013 - 1:32 am -
Hi experts,
I like to join with you in this nice discussion.
The guy (who posted this thread)...
By Curt Wuollet on 14 May, 2013 - 9:58 pm -
I'd check just where those circuits go and the grounding of the items they are attached to.
...
By David Wilson on 14 May, 2013 - 2:34 pm -
> Analog input module (Model no-6ES7 331-7KF02-0AB0, Siemens) is frequently
> burning during...
problems with DB blocks in simenes s300 processor
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Hi,
Please refer to link below that explain about the Global DB and Instance DB.
I would...
VIPA PLC MODBUS RTU MASTER/SLAVE COMMUNICATION.
I have 3 different VFD brands I would like to control using Modbus RTU. I have a Prosoft MVI46-MCM card in a SLC 5/04 rack.
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By Steve Myres on 13 May, 2013 - 12:57 am -
My apologies -- that sample WAS for a 3150 (which at least at that time you had to configure as a...
By Jim on 12 May, 2013 - 7:09 pm -
Thanks for all the replies.
I already have the Prosoft card, so no need to pay for firmware...
By Dayvie on 10 May, 2013 - 8:55 pm -
SLC 5/03 5/04 and 5/05's all speak Modbus natively
There is no need to purchase a $ 1,500...
Modbus I/O for hazardous locations
Break Alarm in Siemens HMI (Wincc)
Convert rs422 to 4-20mA?
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By Bill Sturm on 12 May, 2013 - 9:05 am -
> I can only get the magnet strips with rs422 output (I gather this is essentially...
Need to link Slc 5/03 to a pc using an rj45
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By Ikhtiander on 9 May, 2013 - 1:32 am -
Hi ME,
Following are steps that you need to follow:
- You have to use these...
By Joe E. on 8 May, 2013 - 10:10 pm -
First off, do not connect the RJ45 to an Ethernet adapter. It will *probably* break something. To...
By Bob Peterson on 8 May, 2013 - 6:40 pm -
The RJ45 connector on a SLC5/03 is a DH485 port. you need some kind of DH485 adapter. There are...
I'm trying to find a way to go to work on an Oil plant.
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Hey,
if you want to get started in the oil & Gas industry go to GEcareers.com and they have...
Howto read Modbus registers to a HMI
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By Andrzej on 8 May, 2013 - 1:14 am -
Hello,
Try use Modbus Scanner from www.modbus.pl.
You can set different com settings,...
Ok,
1. I did try this
2. I will experiment further with the function codes and the leading 4....
By Brian on 7 May, 2013 - 11:23 am -
Company called MONICO makes a Cummins "data communications gateway" Check their website....
My recommendation is to use a generic Modbus master, like Win-Tech's Modscan32 in order to be able...
Is there a way to write an value in the 1xxxx and 3xxxx addresses in Modicon quantum PLCs?
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In response to my previous post.
I know Inputs cannot be written.
But I've heard these input...
I am trying to configure the Floboss 107 as a MODBUS Slave with specified register I/O parameters as specific MODBUS addresses.
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By Salomon on 4 May, 2013 - 3:40 pm -
Hi my friend,
i got just the same problem but i use a MVI56E-MCM Card for Controllogix PLCīs...
Real Time Monitoring Allen Bradley SLC 5/03 processor
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By Bob Peterson on 4 May, 2013 - 1:13 pm -
It seems likely that your understanding level of how this stuff works is low enough that I am not...
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