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Control.com topic...
Communications
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?
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:
> 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...
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...
I have a generic inhouse Modslave.EXE application that responds to any Modbus Slave address it...
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...
Topic: Human-Machine Interface and SCADA.
from the E&I department...
Freezing of AB PanelView Plus
Originally posted by Bilal on 10 May, 2014 - 1:21 am
Allen Bradley Panelview Plus HMI freezes with a pop-up error message.
New Replies:
To what PLC/SLC is the PanelView connected? Is it DH+? Is the firmware up to date? There were...
We are an equipment builder, and see this with a recent customer. It happens late in the day, and...
Topic: PLCs and related questions.
from the Instrumentation department...
Local Fault on SLC 500
Originally posted by casualguy on 18 August, 2014 - 3:28 am
Local fault indication on our SLC 500
New Replies:
we have checked it and made sure that the power supply is large enf for the modules.... its been...
Topic: Sensor technologies.
from the Forum department...
Running Analog Signal
Originally posted by jmgusmer on 26 August, 2014 - 6:34 pm
I need help with running analog signal alongside some 110 lines
New Replies:
I agree with allot of the responses so far. If at all possible, try to keep the 4-20ma signal...
The shielded, twisted pair cable is a must since that will help prevent any electrical induction....
Topic: Communications systems and equipment.
from the Forum department...
Dixell XC645 MODBUS Register
Posted by Bare on 3 September, 2014 - 3:41 am
Looking for information about MODBUS to connect to the registers in a Dixell XC645CX regulator
Topic: Local and wide area networking in factory automation.
from the Forum department...
TCP/IP over Ethernet
Originally posted by Tarun on 25 August, 2014 - 1:23 pm
Is TCP/IP on ethernet better?
New Replies:
> What does Ethernet port with web server mean? It means that the Ethernet port supports HTML...
What does ethernet port with web server mean? If there is any literature related to that please...
Many PLC's, HMI's, drives, and other automation devices have Ethernet built-in or as an add-on...
Topic: Communications systems and equipment.
from the Instrument department...
ALE111 module send failure
Originally posted by Shahzad on 28 September, 2010 - 5:17 pm
Yokogawa ALE111 module communication problem
New Replies:
I have a similar problem. We are using ALE111 Ethernet card with controller ADV10D to communicate...
Topic: Communications systems and equipment.
from the wonderware device intigration department...
Communication Between Emerson DeltaV DCS and Wonderware
Posted by hiren on 31 August, 2014 - 7:49 am
Communicating through FSGateway between Emerson DCS DeltaV and Wonderware System platform
Topic: Communications systems and equipment.
from the ELECTRICAL PROJECTS department...
Replace RS-485 with Siemens Profibus Cable
Originally posted by JIMMY SALDIVIAS on 14 August, 2014 - 12:24 pm
I am building a Modbus RTU network and am considering replacing RS-485 cable with Siemens Profibus cable. Want to hear from those who have done this.
New Replies:
Hello, apparently this guys are Siemens Distributors for South America: http://bit.ly/1nJZxLH ...
Topic: PLCs and related questions.
from the instrumentation department...
Difference Between IP and MAC Addresses
Posted by RAJESH on 29 August, 2014 - 4:17 am
What is the difference between IP address and MAC address?
Topic: Local and wide area networking in factory automation.
from the Forum department...
MODBUS to Lan Convertor
Originally posted by danaqu on 26 August, 2014 - 2:53 pm
Looking for a MODBUS to Lan convertor.
New Replies:
We have a series of products called our TDS series. Using 2 of these, you can form a serial data...
It might work. I didn't see any software for configuring it. That type of serial server is...
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