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Visual Basic for communicating with Modbus devices
Posted by J.C Ruiz-Morales on 18 April, 2001 - 2:39 pm
I am just starting out in Visual Basic and I'm trying to get hold of any basic source code that will show me how to communicate with Modbus devices via a serial port. I need some basic code that I can play around with and figure out how it works. If there is anybody out there that can help me it would be greatly appreciated.
4
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Control program in Step 5
Posted by Yousif on 18 April, 2001 - 2:10 pm
i need help to write a program in step 5
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need help with a HSP56 MicroModem COM2
Posted by ruben dario on 18 April, 2001 - 12:35 pm
i have a HSP56 MicroModem COM2 and i'm a newcomer in linux. do u know where can i find a driver for this modem. one friend of mine says it is a winmodem. is it true? if so, could my new linux system deal with it?
Need a C ++ Program for a BM85
Posted by Raymundo D. Balderas on 17 April, 2001 - 9:55 pm
Hi everybody, Does anyone have a program developed in C++ to interface any device to a Modicon's BM85. I need to create one program and need an example.
9
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24 Volt DC motor controls
Posted by Ed Thomas on 17 April, 2001 - 9:52 pm
Finding 24VDC drives
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Modbus tcp slave development (was Getting Involved)
Posted by Philip Costigan on 17 April, 2001 - 4:14 pm
I have made a feeble attempt at launching the Modbus/TCP slave project. ...
4
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Genius I/O - Modbus Plus Bridge
Posted by Jeff H. on 17 April, 2001 - 3:04 pm
Wanting to use existing GEFanuc Genius I/O with a shiny new Modicon Quantum Controller.
4
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Liquid Sulfur Flow Measurement
Posted by Sergey E. Kukushkin on 17 April, 2001 - 3:02 pm
I am looking for flowmeter for liquid sulfur flow measurement (mass flowmeter, rotameter etc.
6
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SLC 5/01 communication from my PC!!
Posted by Derek Haywood on 17 April, 2001 - 7:48 am
Have just purchased an AB SLC 5/01 & wish to talk to it via my PC, preferably the most inexpensive way. Thanks Heaps
2
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velocity of ABB robots
Posted by Josť Antonio Cruz on 17 April, 2001 - 5:07 am
maximum velocity of ABB robots?
6
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star delta motors
Posted by dipin on 16 April, 2001 - 1:32 pm
if i convert delta connected three phase motor to three phase star connection, what will be changes in following characterstics of motor: a) current rating b) torque rating c) kw rating d) rpm (any slippage) ?
1
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honeywell controller
Posted by john on 16 April, 2001 - 1:23 pm
comms question - interfacing Honeywell 620-36 processor to A-B PLC
1
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Sicomp AMS ( Siemens Product )
Posted by Luciano Cardoso Vasconcelos on 16 April, 2001 - 12:24 pm
Manuals for Sicomp edit software ?
3
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FAQ anyone?
Posted by Mario de Sousa on 16 April, 2001 - 5:46 am
Is anybody still maintaining the FAQ?
5
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Cimplicity, adding properties
Posted by Walter Villafuerte on 16 April, 2001 - 12:31 am
How to add new properties to a project and keep a license safe.
5
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Writing VB programs for RSview32 Offshore
Posted by Prem on 15 April, 2001 - 3:56 pm
How do I develop programs using VB 6.0 for RSView32?
1
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servo system 12v
Posted by Laurence on 15 April, 2001 - 2:30 pm
Require a suitable circuit diagram for servo control over a 10amp 12v motor in a 12v dc circuit via a potentiometer and feedback pots.
2
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OPC RSlinx to Controllogix through Ethernet
Posted by Robert Quiroz on 14 April, 2001 - 8:26 pm
I want to get some tags from a control logix plc through a Ethernet Card on a remote chasis. Is it possible to consume this tags from the Schedule portion of ControlNet and get them through OPC with RSLinx on a PC.
4
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Anyone want this?
Posted by First Name Last Name on 13 April, 2001 - 5:12 pm
Recently I did a project which required linux to ge 9030 plc ethernet communication. I now have a working library ...
6
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Gould Modicon 085A PLC info
Posted by Dan Virgilio on 13 April, 2001 - 2:30 pm
Need manual for a Gould Modicon 085A PLC
3
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Genetic Algorithm
Posted by Badar on 13 April, 2001 - 12:52 pm
I am using Genetic Algorithm but having difficulty. Can anybody suggest to me an article or write up on using GA.
2
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Function Generator !!!
Posted by Dal Badial on 13 April, 2001 - 10:15 am
Need a function generator capable of generating square waves at 75 square waves per second ...
5
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Galvanic Isolating Barrier for RS485
Posted by Carl Burgess on 12 April, 2001 - 7:10 am
Looking for galvanic isolator (IS) for RS485 link.
1
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Siemens PCLINK2A NIA
Posted by Stephen Acke on 12 April, 2001 - 3:38 am
Siemens PC-E-S5 (PCLINK2A-NIA) under Win95 not responding. Tips and solutions pls. Do you have experience with cheap ethernetcards supported by CIMWAY (PCVUE)and being able to get coupled with a Siemens CP143 (S5-115U, feel free to contact me.
Flexible Multiplexer
Posted by Alfonsus A. Kristanto on 11 April, 2001 - 10:49 pm
Information of Flexible Multiplexer from Siemens
Advant IMS to OS500
Posted by Mark Silva on 11 April, 2001 - 9:49 pm
Can one OS connect to different IMS
I/O Market
Posted by Bob Pawley on 11 April, 2001 - 5:03 pm
Does anyone have or know of yearly estimates of sale of new I/O on the worldwide market?
4
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SattBus
Posted by Gee, Jeffrey on 11 April, 2001 - 4:12 pm
Has anyone ever heard of a communication protocol called SattBus?
8
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Dumb question - temperature control
Posted by CK on 11 April, 2001 - 4:03 pm
How do I simulate a thermocouple input to a temperature controller? ...
2
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Mitsubishi A3N and AJ71C24 S6 Comms
Posted by Shawn Rimmell on 11 April, 2001 - 2:37 pm
How to send and receive data on a Mitsubishi A3N PLC with AJ71C24 S6 comms device.
4
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DNP 3.0 vs. MODBUS, Generic Description
Posted by Christhian Quijada on 11 April, 2001 - 1:48 pm
Advantages of using DNP 3.0 vs. MODBUS for linking to SCADA ?
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Heat Exchange
Posted by William on 11 April, 2001 - 11:06 am
What flow of 3.5Bar Steam is required to heat 200tonnes/hr of NH3 from -33degC to +3degC? What are the sequential calculations?
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Foxboro DCS remote Node Application
Posted by Kusnadi, Iyas on 11 April, 2001 - 10:56 am
We just have project in remote location and installed one Node foxboro DCS, has anybody ever done the Host to host data sharing /communication between 2 AW hosts through the corporate LAN? what do I need? ...
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DeviceNet Master Simulator?
Posted by Pete Arthur on 11 April, 2001 - 10:49 am
I am looking for any software (Win32) that could be used to simulate a DeviceNet master for testing/debug purposes?
protocol converter-IEC101/Westinghouse
Posted by Tolga Celtekligil on 11 April, 2001 - 9:51 am
Our RTU (Siemens) communicates with IEC-101 with the control center. But the software in the control center exits already and accepts WestingHouse Micro Telemetri Version.2 Protocol.......... Is there any protocol converter for this????
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PRACTICAL Process Control Strategies
Posted by William on 11 April, 2001 - 8:58 am
Looking for book, website etc which would be a reservoir of PRACTICAL process control strategies.
23
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Automation Market - Real Numbers
Posted by Luis Andes Navia on 11 April, 2001 - 6:38 am
My name is Luis Andes, I am developing a project "Present and future of the automation market"
2
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Differential Pressure to Mass Flow Rate
Posted by David T Crawford on 11 April, 2001 - 4:35 am
I am an engineering student trying to find a simple program for converting my reading from a 3" and 4" annubar pressure differential (% of 30" and 6" H2O) for different compressor output.
2
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Cimplicity - building screen
Posted by Zuo Zhihui on 11 April, 2001 - 4:12 am
Build screen to Login/out and make Development to be a Runtime
Data compare error on OPUS-S5
Posted by DeFreitas, Nelson on 10 April, 2001 - 5:11 pm
I have a OPUS-S5 (mmi) connected to a 135U 928B CPU. It has all of a sudden stopped working and the Message I get is Data Compare Err. 07 1E 10 00. The manual is no help...
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Telnet Component?
Posted by Joe Jansen/ENGR/HQ/KEMET/US on 10 April, 2001 - 5:09 pm
I am working on a personal project, and am trying to locate a free telnet activex component. ...
5
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integrating IEEE card on PLC
Posted by Harry Friemann on 10 April, 2001 - 4:47 pm
I have to update a machine to measure electrolytical capacitors. The whole machine is controlled by one axe.... I want to remove a large number of sensors and use an absolute encoder instead. This will be my trigger for all activities. The measurements have to be with Itronics Fuchs equipment using IEEE (possibly RS232). We want to control the machine, make settings to the measuring-equipment
Simatic CP 5431 PROBLEM
Posted by IP M USMAN LATIF on 10 April, 2001 - 4:36 pm
When I plug in the programmed EPROM & turn on the PS, CP5431 goes into the stop mode instead of the non-syncrone mode i.e. green (run) LED goes off & red (stop) LED stays. ...
2
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canned message display screen
Posted by F DuBois on 10 April, 2001 - 4:33 pm
looking for a display for OEM type application.
JimPinto.com eNews - April 9, 2001
Posted by Jim Pinto on 10 April, 2001 - 3:17 pm
Jim Pinto's eNews No. 39 - April 9, 2001 is on the web at : http://www.jimpinto.com/enews/apr09-2001.html
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IEC Drawings
Posted by Anthony Kerstens on 10 April, 2001 - 2:49 pm
I've been asked to quote a machine for Europe, and include "IEC drawings". ...
2
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Temperature control for greenhouse
Posted by berto on 10 April, 2001 - 12:13 pm
im building an indoor garden & need some real basic questions answered
4
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Cascaded PID loop question
Posted by Monah Fakhoury on 10 April, 2001 - 11:08 am
We build a cascaded loop involving three input variables, and used simulators to input signal to the three channels. With the simulated inputs constant we, the output of the second PID is oscillating, between three points, and not full scale. The loop that we are having a problem with is a three term control loop ...
6
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Converting 4-20mA Signal
Posted by David on 10 April, 2001 - 10:56 am
I have two transducers and I want to take the differential between the two and convert that to a water level. This will be done through a PLC that controls a valve on the surface. What is the calculation that converts the 4-20mA signal to a true water level?
DELTA V <> CEAG IS Backplane via Profibus DP: How to implement comms?
Posted by William on 10 April, 2001 - 7:22 am
DELTA V DCS is interfaced to field i/o via CEAG Intrinsic Safety Backplane. A Profibus DP network is physically implemented. What are the mechanics of establishing / configuring the Profibus DP comms?
3
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Retrieve data from a CNC
Posted by Patrick Lafont on 10 April, 2001 - 5:35 am
I'd like to etablish the network between one or more CNC(s) and one computer in order to retrieve data from these CNCs.
10
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Advanced process control - neural networks
Posted by Andrew Ng on 10 April, 2001 - 5:00 am
I am looking for a commercially available APC (neural networks) software package that can link via OPC to any PLC system. I need it to optimize a continuous process in real time. Can anyone help?
2
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Siemens S5 to Allen Bradley DF1 Link
Posted by Daniel Snelgar on 10 April, 2001 - 4:59 am
I am trying to link a Siemens S5-95U to a SCADA system running an AB DF1 Half Duplex protocol. The S5 has a CP-521-S1 communications processor and I also have a PLC 5/20 with a Prosoft Modbus module available to use as a Modbus link if possible. Any help with products or info would be appreciated.
2
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Setting up RSView as HMI for Siemens 115U PLC
Posted by Anshul Saxnea on 10 April, 2001 - 2:48 am
Setting up RSView as HMI for Siemens 115U PLC
2
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PID tuning method using overshooting and dampening parameters (Foxboro Exact Parameters)
Posted by Stephane Casse on 9 April, 2001 - 11:16 pm
I would like to know if somebody knows a PID controller tuning method using Overshooting and Dampening.
11
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SLC 5/0x and Radio Modems
Posted by Townsley, Bill on 9 April, 2001 - 5:12 pm
Radio monitoring of remote storage tanks ...
2
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motor time-delay fuses for drives with PWM output waveforms
Posted by Tom Gianni on 9 April, 2001 - 5:03 pm
There are still some PWM drives on the market without intelligent programmable/adjustable motor protection features. ...
2
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Moving code from one plc to another
Posted by Pouwels olivier on 9 April, 2001 - 4:55 pm
I would like to move code from one plc to another dynamically, without affecting the process control. The network used for communicating between PLC's is an Ethernet network. ...
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Profibus Current Transmitters?
Posted by Steven Landau on 9 April, 2001 - 3:50 pm
I am looking for profibus Current Transmitters, or Profibus Direct Interfact to a starter w/CT. I don't need a VFD, but want the Run Signal & Current to be Profibus connected without using I/O blocks.
3
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Knowledge Base Software
Posted by Ranjan Acharya on 9 April, 2001 - 3:40 pm
Does anyone have experience with inexpensive Win32/WinTel or Linux knowledge base software packages.
4
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Can't Count with AB micro logic
Posted by Bil Whaling on 9 April, 2001 - 2:31 pm
working on a Allen Bradley micro logic 1761 L32BBB controller and could use some help understanding why my ladder logic program for implementing a counter isn't working. ...
Cimplicity HMI to Modbus
Posted by Damian Cepeda on 9 April, 2001 - 2:08 pm
Information Between Hmi and plc modicon modbus
6
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Factory Link 6.6
Posted by Vernon Rocco on 9 April, 2001 - 12:59 pm
I've just implemented a control system using Release 6.6 several months ago. The system runs fine for about 24 to 48 hours, then locks up the computer. ...
2
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AB RIO scanner time
Posted by Anthony Kerstens on 9 April, 2001 - 12:46 pm
Does anyone know how to get the RIO scan time out of a 1747-SN series B RIO scanner. I've looked at M and G files, but I can't see it.
4
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Need a vision system
Posted by Pierre R. Hinse CET on 9 April, 2001 - 12:43 pm
Need a vision system, for mobile equipment.
Cpu's Static Control
Posted by Damian Cepeda on 9 April, 2001 - 10:47 am
Can't add other unit to enable music box
4
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Information gathering about AB PLC's
Posted by Mark on 9 April, 2001 - 10:47 am
I want to gather specific information regarding AB PLC's. In essence, just need to know register structures, I/O variables, etc etc. Already know how to program PLC's...
CE compliance -EMI shielding material
Posted by Vandana on 9 April, 2001 - 10:27 am
I want to know what are the standards and requirements to get CE marking for EMI shielding material
baud rate less then 110
Posted by andy rampal on 9 April, 2001 - 8:03 am
im trying to read from comm port (not using modem)at comm setting as 50,5,n,1
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PLANTWEB in the Oil & Gas Industry
Posted by William on 9 April, 2001 - 7:42 am
Is PLANTWEB suitable for the Oil & Gas Industry? Is it as robust and reliable as conventional DCS systems? I wish to talk to a Control Engineer presently involved with an Oil & Gas PLANTWEB installation!
Industrial I/O Translator for DIO48
Posted by Curt Wuollet on 8 April, 2001 - 11:00 pm
Sink drivers and source drivers...
4
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RS NetWorx
Posted by Prem on 8 April, 2001 - 3:07 pm
Would like to know problems faced with RS Networks in a redundant client server architecture.
38
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On Replacing PLC's
Posted by Curt Wuollet on 8 April, 2001 - 12:18 am
As you know I have been busy lately on an automation project. This has become a most unusual automation project for several reasons. It started as a more or less normal integration task to tie various machines into a cell. It got bogged down using the normal tools and has been reborn in a lightweight low cost approach out of neccessity. ...
3
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tsx 17 programming software
Posted by Rodrigo Perez on 7 April, 2001 - 10:41 pm
Anyone know if there are any software to program the telemecanique plc tsx 17 2 4012? and this software is for pc or is for a special programming terminal? ...
2
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Configuring a 1785-ENET module off-line?
Posted by Jim Irwin on 7 April, 2001 - 3:46 pm
I am trying to configure a 1785-ENET module with a PLC 5/40 and cannot get access to channel 3A to configure module in off-line mode .......
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Info about Melsec F2-20
Posted by P Jenkin on 7 April, 2001 - 6:27 am
Scrounging request for information on PC/PLC comms.
1
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MPI beyond 50mtrs
Posted by Ashish Atre on 7 April, 2001 - 1:43 am
Want to extend the MPI link beyond 50 Meters
1
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GE Series 90 simulator
Posted by Luis Carrillo on 6 April, 2001 - 7:55 pm
Need advice / recommendations / experience on PLC simulation software for GE Fanuc PLC`s
3
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Grafcet to Ladder Logic
Posted by Paulo Borgerth on 6 April, 2001 - 4:20 pm
Does anyone know a program that convert a logical designed in Grafcet to a Ladder Logic Program ? I intend to use this with the PLC SLC-500.
9
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Suggestions for PLC Recipe Program?
Posted by Pete Arthur on 6 April, 2001 - 4:09 pm
I have a customer that requires selectable "recipe" programs in a MicroLogix 1500 PLC. Any suggestions?
12
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Siemens s5 Failure
Posted by DeFreitas, Nelson on 6 April, 2001 - 1:56 pm
I am hoping someone out there can help me out with a problem I have with a 135U CPU928B ...
3
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Date Format Gripe
Posted by Ranjan Acharya on 6 April, 2001 - 11:39 am
Many of us write software programmes (or programs as the case may be) that use calendar dates. Please consider users overseas when you write such applications. ...
13
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Modbus RTU Master, emulation of
Posted by William on 6 April, 2001 - 10:42 am
Modbus RTU link between process analyser and PLC. Is there any free software that will enable a laptop to emulate the Modbus Master (PLC).
2
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DIO48 Industrial IO Terminal card HOWTO
Posted by Curt Wuollet on 6 April, 2001 - 10:19 am
Someone asked what to do with the materials to make the board. I thought I'd at least provide the outline of how to do it.
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Another Modbus question? Addressing
Posted by Chris Haught on 6 April, 2001 - 8:59 am
I am looking for help on understanding Modbus. I have already downloaded the Modbus protocol document from Modicon.com. I have two main questions.
4
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PC to Moeller PS306
Posted by Marvin on 6 April, 2001 - 8:36 am
I am looking for the wiring diagram for the programming cable used to connect a PC to a Moeller PS306 PLC The PLC input is a RS485. The PLC is obsolete and our application is for only one time. Any help would be appreciated.
communication PcVue and Honeywell 9100e
Posted by Piotr Kram on 6 April, 2001 - 8:18 am
communication - HMI/SCADA PcVue32 and HONEYWELL 9100e
1
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Factory Symbols VCL for Delphi or ActiveX
Posted by Rumjantsev Kirill on 6 April, 2001 - 7:34 am
looking for Factory Symbols
1
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cif-hilscher-synergetics cards module
Posted by Mario de Sousa on 6 April, 2001 - 5:39 am
I have just started on the modules to work with the above mentioned cards. Unfortunately I have no clue as to the best name to give the module. ...
5
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Heating 3 phase Motors by single phasing
Posted by Thomas D. on 5 April, 2001 - 7:12 pm
Has anyone had experience using 24 - 115vac volts to heat non-running motors in damp environments? If so, what voltage did you use and what size step-down transformer?
ProWorx nxT - Ladder Import
Posted by RJScanlon on 5 April, 2001 - 6:10 pm
Looking for a way to import ladder logic generated by VB or C programming. Similar to "Import from Library" that is available on RSLogix software.
7
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Mitsubishi PLC's & ActiveX
Posted by Paul Miller on 5 April, 2001 - 4:42 pm
looking for ActiveX component to communicate with FX or A series PLC.
5
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DC Motor control using PWM
Posted by Andrew Douglas on 5 April, 2001 - 4:33 pm
I have undertaken a project to engineer a stabilised coffee table for use onboard a ship.
5
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Flame detectors
Posted by Alberto Lucas on 5 April, 2001 - 3:21 pm
For a fired-heater that has 48 burners/pilots, and that will burn only fuel gas, what is the flame detector technology recommended (UV, IR or Flame Rods)? ...
7
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HMI/ISO9000/Calibration
Posted by Darin Jett on 5 April, 2001 - 1:23 pm
Where do calibration stickers go for ISO certified devices monitored by HMI?
Insight 3.2 manuals
Posted by Luciano Cardoso Vasconcelos on 5 April, 2001 - 1:18 pm
Insight 3.2 manuals in PDF?
11
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serial communication - weighing machine
Posted by ved74 on 5 April, 2001 - 1:16 pm
Reading data via com2 port
Linux In Automation
Posted by Curt Wuollet on 5 April, 2001 - 10:05 am
For all those who want to use Linux in automation, I have designed a board, that in conjunction with a Mesurement Computing (was ComputerBoards) CIO-DIO48, will provide 24 sink/source optoisolated 24VDC industrial inputs and 24 optoisolated .5ADC OC sinking outputs. This design and the artwork for direct reproduction are available free on the LinuxPLC site. ...
4
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RS485 MESSAGE DISPLAY
Posted by Chimalkar, Sumeet on 5 April, 2001 - 10:03 am
I need to be able to display some parameters in a number of rooms in a building automation application. The parameters are RH and Temperature. ...
Modbus Master program for s7-22X PLC
Posted by Kamath RL on 5 April, 2001 - 10:00 am
For Siemens S7-224 or s7-226 PLC, can we write a program to make its communication port to work as a Modbus master? ...