from the Communication department...Yokogawa Centum CS 3000 & 3500/92 Communication
Error in reading Analog Data from Holding registers
1. Parity is redundant with CRC checking, so you might disable parity else you may limit full...
from the Forum department...Satchwell Sigma Interrogation
In need of a software (or hardware) solution to read data out of a Sigma system on demand.
There are BACNET libraries on Sourceforge. I suggest that you try one of those. Since you'll have...
from the Forum department...configure SLC500 to communicate with micromotion MVD direct connect
looking for a setup guide or some app notes
By Erik on 10 July, 2009 - 5:53 pm -
What SLC500 module are you using??? The 3150-MCM module has 2 DB-9 ports ont he front of the...
from the Forum department...Wayne Dresser Current Loop protocol
Dresser Wayne Protocol for Current Loop
By deniss on 9 July, 2009 - 5:10 am -
I am need Wayne Protocol, email me please. deniss [at] bas.lv ...
from the Forum department...CANopen help
I need some help as to understanding some basics, mainly SDO usage & configuration, of the CANopen protocol.
By Heinz-J on 8 July, 2009 - 6:39 pm -
Patrick, assuming German is one of the languages you can read: ...
from the Someone, somewhere has the answer department...Monitoring for lease line connections
We would like to monitor the Tx/Rx of our lease line connections, 9600 baud, for loss of connectivity
I've found what I was looking for - something like this -...
By Kelly Crist on 8 July, 2009 - 12:11 pm -
Thank you Paul, the physical interface is a RS232 DB25 which connects to the RTU onsite. I've...
By Paul Wacker on 7 July, 2009 - 6:08 pm -
> Kelly Crist writes: > We have 3 lease line connections and were currently using the...
from the Forum department...Modbus TCP listener in C#.net
Modbus TCP listener for handling multiple clients and making smooth communication including database storage.
By Mark on 8 July, 2009 - 12:11 pm -
Automated Solutions offers a Modbus Slave (server) ActiveX Control that can be used in C# Windows...
A "TCP listener"? Do you mean a Modbus/TCP server? The client sends a request to the...
from the Forum department...York chiller MS/TP MicroGateway
Interfacing to York MicroGateways
from the Comms department...s7200 with radio's
Communication problems with s7 and radio's
from the for PC DNP 3.0 serial simulations department...DNP 3.0 serial simulator?
Do you know if there is any simulator software for the DNP 3.0 protocol over a serial RS232 connection?
By Fred Loveless on 7 July, 2009 - 10:11 am -
We use Trianlge Microworx DNP simulator as one of our test applications along with with physical...
By Bill on 7 July, 2009 - 1:50 am -
People, help needed. I am trying to find a supplier for the source come library for DNP3 Slave and...
from the Forum department...MOSCAD I/O Server of Wonderware
Communicating Wonerware SCADA with Motorola RTU - STS1250 via MOSCAD I/O server of Wonderware
from the Forum department...Cicode function problem
Cicode function problem - Variable Tags
It has been awhile since I use Cicode, but if I remember correctly the tag value will only get...
from the Automation department...DCS Shutdown signals
Shutdown logic signal between two DCS systems
By Nick Mellor on 5 July, 2009 - 11:19 pm -
If a SIL assessment has shown that a SIL rating is required for these valves then using serial...
In my experience I haven't come across any standards which says that shutdown through serial link...
These are two critical shutdown signals to trip-valves. As such we have not done this yet as we...
By Roy Matson on 30 June, 2009 - 10:49 am -
How critical are the shutdown signals? What will happen if you loose communications? Have you...
from the Forum department...OPC Server Hanging at will
OPC Server Hanging at will
Check the memory usage at regular intervals to see if it is consuming more and more memory. If it...
By UTR on 2 July, 2009 - 10:45 pm -
Having used both Matrikon and Kepware for similar applications I would reccomend moving to Kepware...
By Adriel Michaud on 2 July, 2009 - 10:26 am -
MIX, have you contacted our OPC Support team? They'd be able to assist in resolving the issue. ...
Sometimes its not the software but the hardware. Maybe your PC have not enough RAM space to run...
By Fred Loveless on 30 June, 2009 - 5:29 pm -
Try KepserverEx (http://www.kepware.com). We have and extensive posotive history working with...
By Mark on 30 June, 2009 - 3:07 pm -
Try a different OPC Server. Free, fully-functioning, 30 day trial version available for download at...
By Mark on 30 June, 2009 - 10:11 am -
Hi, The list of possible problems is very long. Without more data, finding the problem and...
from the Forum department...GE iFix MBE modbus ethernet V7.x driver
Looking for a GE Ifix MBE modbus ethernet V7.x driver
from the Advice department...Ethernet I/O Devices
I'm seeking advice on a replacement device for an ADAM-6017, that's approximately the same size.
By William Sturm on 2 July, 2009 - 5:53 pm -
If you can do C programming, look at the single board computers from Rabbit Semiconductor. They are...
I've never bought anything from the following, so I can't exactly recommend them. However, you...
By Don Lupo on 30 June, 2009 - 6:38 pm -
I checked the datasheet on the Advantech-6017 module and it indicates an update time of 10...
from the Networking department...Temco Thermostats (TSTAT5) on Modbus communication
project using the Temco Thermostats (TSTAT5) which are run on Modbus communication (daisy chain connection)
By Benson Hougland on 2 July, 2009 - 5:29 pm -
Hello SK- I suggest posing your question to Opto 22 Product Support at firstname.lastname@example.org, or call...
from the Control System department...Yokogawa and Siemens Profibus Problem
yokogawa ALP111 and Siemens 315-2dp-af03 communication problem.
from the Forum department...Technical question about bit stop number with none parity
Which is the correct bits stop number with none parity?
By David on 1 July, 2009 - 5:35 pm -
Yes, but as you've noticed, many do not use two stops for no parity. In fact, I find it rarer to...
from the Forum department...Communicating from PV600 to CTI 2572a
e-net communication from PV600 to 2572a
I have been told I cannot communicate via e-net i/p directly to the CTI 2500 plc from a standard...
from the Forum department...Layout of registers, coils and inputs. Design-question
Need information about layout of registers.
By Nick Mueller on 1 July, 2009 - 4:32 pm -
Thanks! Your answer absolutely addressed the philosophical side of my problem. There are...
Yes, coils, discrete inputs, holding registers, and input registers are just different ways of...
from the Design department...Modbus RTU protocol format with ODD PARITY
What is the MODBUS RTU PROTOCOL format for ODD PARITY?
Parity is redundant and never normally used WHEN CRC error checking is implemented. Parity is not...
from the Packs Modbus department...MODBUS Comm Issues with Kepware
Comm Issues MarkV - Lantronix - MODBUS - Kepware
By Fred Loveless on 30 June, 2009 - 10:24 am -
Hmmm, i posted a response to the yesterday but it seems to not have made it up forum. The error...
from the Forum department...GSM/GPRS modem with power over RS485
GSM/GPRS modem with power over RS485
Millions long for immortality who do not know what to do with
themselves on a rainy Sunday afternoon.
-- Susan Ertz