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Control.com topic...
Communications
Topic: Power generation equipment control.
from the Gas Turbine Control department...
Rustronic Mk2 Information
Posted by Kev Magee on 1 October, 2014 - 11:57 am
Looking for information on Rustronic Mk2 GT controllers
Topic: Communications systems and equipment.
from the Master Thesis world department...
Master Thesis Guidance With Protocols
Originally posted by Sandra Calvo on 26 September, 2014 - 3:56 am
Trying to decide which communication protocol is better for the API I am designing for my Master Thesis.
New Replies:
The security/cost of MODBUS is exceptionally inviting for most applications. It is a...
You could also look through the California Smart Grid initiatives, as they are trying to define...
Thank you all for your responses. I am strongly considering Modbus, because DNP3 seems to be...
Hi. You must pay attention in the security (cryptography) issues. A large scale data network...
I can only speak for the last 35 years (20 with the Fisher ROC series) and it has been Modbus all...
Wow, that's a tall order. Which is better? :-) Really it depends on your market. Modbus is great...
Topic: Communications systems and equipment.
from the Solar department...
Modbus Training Courses
Originally posted by Kyle on 19 December, 2013 - 9:37 pm
Looking for Modbus training courses
New Replies:
Texas Automation Systems which partners with Techstar gives great instruction on Modbus. ...
Posted by Brian on 28 September, 2014 - 9:18 pm
Setting up connectivity for VB.NET 2012 OPC. How do I list the TAGs in my controller?
Topic: Communications systems and equipment.
from the Forum department...
MODBUS Break Condition & Checksum
Originally posted by Derek on 16 April, 2014 - 12:14 pm
MODBUS RTU using RS485 to RS232 converter connected to RS232 to USB converter to communicate with electric meter using MODBUS Poll.
New Replies:
I agree that the fewer converters you have transferring the signal, the better. Connecting one...
Topic: Communications systems and equipment.
from the Engineering design department...
RS485 Connnection to DV-6 VE4006P2
Originally posted by Bhaskar Mittal on 26 September, 2014 - 12:53 pm
Connecting DCS to VFDs on 485 Modbus RTU
New Replies:
Modbus is not plug-and-play even if Emerson's laughable marketing spiel, "Plug your Serial...
Topic: Continuous process industries, DCS questions.
from the General Engineering department...
DCS vs PLC
Originally posted by Krishna K. Naidu on 29 June, 2006 - 12:11 am
Advantages of DCS over PLC for Gas turbine control
New Replies:
I am in agreement and as a proponent of Allen Bradley systems, the difference is in the planning....
Topic: PLCs and related questions.
from the Forum department...
Contactless Card Reader and PLC
Posted by Amer on 26 September, 2014 - 3:30 am
How to connect contactless card reader to PLC?
Originally posted by connected on 14 September, 2014 - 2:31 pm
Problem with SCADA system that supervises electrical power flow for a residential building. Connected with Modbus RTU over RS485 daisy-chained 2-wire. The communication on the bus seems to be destroyed with Schneider PM750 connected.
New Replies:
Thank you for your kind and relevant responses. I've been approaching the problem with biasing...
I've seen similar problems a few times before -- where one device brings down the RS485 bus. One...
> By the way,, does it exist any utility to check the serial interface of the Pm75? I'm thinking...
By Lynn August Linse on 18 September, 2014 - 4:08 pm -
If you expect lightning/grounding damage, what I have done a few times is power everything off...
I've been researching this problem today and tried both biasing of the bus, different common/shield...
This link shows the shield connection to the PM750: ...
> Where are the terminating resistors and what value? Resistors are placed at the cable ends,...
> It is most likely a grounding issue - that the 2 vendors approached the 'reference signal to...
Two points: 1. RS485, technically speaking, is a 3 wire system, A, B and COMMON. But the...
Some notes: > They are interconnected through daisy-chain 2-wire RS485 The shield and...
By Lynn August Linse on 15 September, 2014 - 9:51 am -
It is most likely a grounding issue - that the 2 vendors approached the 'reference signal to...
Originally posted by Ali on 24 September, 2014 - 1:21 am
OPC Communication between Mark-VI and ABB Freelance AC800F fails resulting in hanging of all ABB Operator Stations.
New Replies:
Ali, Mark VI systems are no longer provided by GE; Mark VIe systems are now the standard. This...
Topic: PLCs and related questions.
from the Forum department...
Synchronizing Two ABB DCS Controllers
Posted by haroon0023 on 23 September, 2014 - 3:47 am
One type of status reading of ABB DCS says they are Synchronized, but other says they are 35% in Synchronized.
Topic: Engineering and workplace issues.
from the Software department...
Using MODBUS in Visual Basic 6
Originally posted by Riccardo on 29 August, 2005 - 4:49 pm
Tooling:
MODBUS device
Visual Basic 6 sp 6
Ethernet Communication Port 502
New Replies:
my name is James Lin ...... my email " mpjames573t@hotmail.com " ...
Topic: Software, including programming, OS issues, etc.
from the R & D department...
Enable Register Read in LabView
Posted by Ajay Waghmare on 20 September, 2014 - 3:44 am
When reading registers in MODBUS using LabViewm, how do I read data from registers at addresses 43XXX?
Posted by Beavis Cleavis on 19 September, 2014 - 1:07 pm
Bus contains isolated and non-isolated slaves. Considerations when connecting everything together?
Posted by Psahu on 18 September, 2014 - 10:49 am
Are controller tag details for control logix is available on ethernet/IP? Using 1756-EN2T module in controller chassis for communication.
Topic: Communications systems and equipment.
from the ModbusTCP department...
PROSOFT MVI56-MNET Slave Response Time
Originally posted by Cris on 17 September, 2014 - 2:27 pm
PROSOFT MVI56-MNET communication response time and performance
New Replies:
Hint - prosoft has very good tech support....
Topic: Communications systems and equipment.
from the Forum department...
RSLinx issue in VMWare WIn 7 32 bit VM
Originally posted by Paul on 11 September, 2014 - 11:28 am
I can do a serial upload and download but I cannot go online with RSLogix 500 inside a VM running WIn 7 32 bit
New Replies:
I just got the 2 port version and it works like a champ. Upload, download and online. Thanks! ...
Years ago I had trouble with VMWare and a Keyspan USB to serial device. I switched over to a Gearmo...
Posted by Psahu on 17 September, 2014 - 10:20 am
Communication not getting established between Yokogawa (ALE-111) and Control logix using Ethernet/IP.
Topic: Sensor technologies.
from the seeking product recommendations department...
Modbus TCP temperature monitor
Originally posted by mooseo on 28 February, 2011 - 2:09 am
I'm looking for a product recommendation
New Replies:
See there... http://pcsensor.com/index.php?_a=product&product_id=109 Moderator's...
I am looking for much the same thing, a simple temp and humidity for my server room. I just want...
Originally posted by Justin on 3 May, 2012 - 2:38 am
How to use a sigmatel USB IrDa dongle to communicate a Drager Xam 2000 with its CC Vision software for calibration
New Replies:
Search the forums there should be similar problem but solved. Did you update all the necessary...
Hi. I have the same problem with a sigmatel usb-irda dongle and windows XP. Do you get to solve...
Posted by rbhadani on 14 September, 2014 - 5:39 am
Issue with Communication between Triconex PLC for SOE and Matrikon OPC server using TCM Module
Topic: Software, including programming, OS issues, etc.
from the Electrical Engineering department...
Communicate ER300P energy meter with PLC
Originally posted by Ummachan K.Joson on 7 February, 2014 - 3:43 am
How do I enter programming mode and communicate ER300P meter with PLC SIEMENS 200?
New Replies:
I communicated the meter with PLC. Changed the Meter ID using PLC program. The Values or the...
Topic: Communications systems and equipment.
from the Forum department...
TDC 3000 Remote Station Hanging
Posted by Jiftim on 12 September, 2014 - 2:15 pm
Remote Honeywell ES-T hangs with the RPS kit. Is it possible to extend the LCN using fiber without using obsolete Honeywell equipment?
Topic: Power generation equipment control.
from the Power Generation department...
Getting a better understanding of GT control PART 3
Originally posted by Neo on 28 August, 2014 - 10:48 am
Getting a better understanding of GT control PART 3
New Replies:
I agree! Thanks for very informative discussion here. Anyway if you are looking for different types...
Topic: Software, including programming, OS issues, etc.
from the Modbus RTU Slave Simulation department...
Modbus RTU 2 slaves simulator
Originally posted by Vlad S. on 5 September, 2014 - 4:02 pm
How to simulate two Modbus RTU Slaves
New Replies:
ModMultiSim (see http://wingpath.co.uk/modbus/modmultisim.php) can simultaneously simulate two (or...
Topic: Communications systems and equipment.
from the Specification department...
Redundancy of Byte Count and Quantity
Originally posted by Jay on 9 September, 2014 - 4:49 am
Is there a need for both fields "Byte Count" _and_ "Quantity"?
New Replies:
Hello, There are several possibilities. Quantity would normally be the count of data fields...
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