Posted by Fred Chwalek on 21 February, 2001 - 3:36 pmZinc chloride filter system
Does anyone have experience with filtering zinc chloride and using pressure switches with it?
Posted by Eudilson_N_Cossio on 21 February, 2001 - 3:33 pmflow measurement
I need a flow meter in a 14" pipe that works only when the security valves take action on a multiple line crude receiver.
Posted by Friedrich Haase on 21 February, 2001 - 2:59 pmAutomatic comments
What do others think of "automated commenting" feature? And are there other PLC programming tools using it?
Posted by Adolfo Jimmy Saldivias on 21 February, 2001 - 11:03 amlinear potentiometer
Please reccommend me a manufacturer of linear potentiometers
Posted by C Seffens on 21 February, 2001 - 11:02 amAbsolute Linear feedback
project in which the customer desires to use a linear motor to drive a pick and place unit over 16 feet of travel
Posted by John Kost on 21 February, 2001 - 9:26 am1771-DB/B High-Performance Programming In C
Looking for benchmark programs which compare the various functions and their speed boost when going from DB-Basic to C-Toolkit.
Posted by Harimurti Widyasena on 21 February, 2001 - 9:25 amNeed help on Modicon 984 Family PLC
I want to know what makes "State RAM Test Failed" error message on Modicon 984-685E PLC
Posted by Kevin on 21 February, 2001 - 9:10 amStrain Gauge Distance From Amplifier
maximum distance to locate a weigh scale amplifier from the load cell(s)?
Posted by Brian Seal on 21 February, 2001 - 1:26 amLookout Direct
looking for product review
Posted by fido on 20 February, 2001 - 9:13 pmSIEMENS S5 UPGRADE
I have problem upgrading our 11 S5 PLC using Windows NT flatform.
Posted by Mr. Patrick So on 20 February, 2001 - 8:42 pmSimatic S7-313 CPU fault
Looking for help with system with S7-313 CPU (MPI) communication with CP5412A2 and a RS485 repeater between CPU and CP card...
Posted by Gavin Goldsworthy on 20 February, 2001 - 6:57 pmHandling Strings in WinCC Scripts
I need to manipulate a string tag
Posted by Chris Iannello on 20 February, 2001 - 5:35 pmCreating an event log in Quantum Function Block Logic
NASA is attempting to create an event log in the Quantum which is a rolling list of the last 20 events.
Posted by Sam Lee on 20 February, 2001 - 4:22 pmModbus RTU Communication problem
I am using PanelMate (from Cutler-Hammar)to communicate with ACM (Siemens-Moore's product) through Modbus RTU protocol.In this application,PanelMate acts master while ACM slave.
Posted by Joe Jansen/ENGR/HQ/KEMET/US on 20 February, 2001 - 2:25 pmAveraging sensor
I am looking for a sensor that can read the surface of a fluid, and average the level.
Posted by Gantt Robert on 20 February, 2001 - 1:23 pmnon-isolated analog inputs
I'm going to use 1746-NI4 analog input modules with an AB SLC-5/04 to monitor 0-10 VDC signals from a few drives and transducers. No problem up to here, but ...
Posted by Hugh Jack on 20 February, 2001 - 12:59 pmNew release of LPC
I have an early release of my new LPC architecture.
Posted by Mullenix, Thomas C., Celanese/US on 20 February, 2001 - 10:38 amSLC/501 Communication to a Laptop Question
I need to hook up to a SLC/501 and hopefully make an online change to a preset in one of the counters.
Posted by Maria j Palacios on 20 February, 2001 - 10:20 amTag logging problems with WinCC
How to configure a layout of Report Desing in Wincc to create tag loggings for maintenance purposes.
Posted by Krishnakumar Kumar on 20 February, 2001 - 9:42 amGround temperature Measurement-LNG Pipe Line
Help with a Ground Temperature Measuring System in a LNG Pipe Line project in Middle East...
Posted by Allen Nelson on 20 February, 2001 - 8:26 amAllen Bradley PID Blocks
Help needed in advanced care and feeding of Allen-Bradley PID blocks
Posted by Neelima Iyer on 20 February, 2001 - 7:07 amhardware interrupt handling in Windows
Parallel Windows functions for DOS utilities like SETVECT and GETVECT.
Posted by Nuash on 19 February, 2001 - 10:23 pmControl Programming of Bailey DCS
trying to find out wether the Bailey infi90 system has anything like an AM from honeywells system to code advanced control functions
Posted by A I on 19 February, 2001 - 10:31 amOmron PID Controll Unit (C200H-PID03)
How do I access banks in my PID Controll Unit whit my PLC C200H. I need to do it in my post-graduate thesis.
Posted by Curt Wuollet on 18 February, 2001 - 9:21 pmA free service for Linux PLC listmembers
Wide Open Technologies (me) is proud to offer a new free service for potential contributers to the LPLC project. I can't afford to give you a Linux machine, but what I can do is get you up and running in a hurry. Simply contact me off-list and send a spare IDE hard drive. ...
Posted by Michael Sing on 18 February, 2001 - 7:34 pmCommunicating to Bailey DCS INFI90 network
I need to communicate directly to a Bailey DCS INFI90 network from my PLC network. I need to go through the Bailey CIU module.
Posted by Mario de Sousa on 18 February, 2001 - 2:22 pmScratch variables revisited
Let me just re-send a previous email of mine to try and bring the issue of arrays of linuxplc points back onto the drawing board. It seems we need to get this sorted out quickly so David can go do his thing on the IEC compiler...
Posted by Dave Sun on 18 February, 2001 - 9:25 amAC Vector sensorless drive training
Information about vector drives
Posted by Curt Wuollet on 17 February, 2001 - 12:33 pmBrainstorming on a RLL IDE
I have spent a little time recently surveying programming tools for ladder logic. ...
Posted by Oscar Rueda on 17 February, 2001 - 10:20 amWinCC's Reporting Tag Logging Runtime failure
I'm learning to work with WinCC 5.0 and I've got problems doing tag logging runtime reports
Posted by George Thomas on 16 February, 2001 - 3:54 pmAll in one fieldbus
I noticed that Synergetic Micro Systems is moving from boards to chips with the introduction of their EC-1; an all in one fieldbus chip. ...
Posted by Conny Karlsson on 16 February, 2001 - 2:15 pmWhat is the difference between Simatic Systems and the Simatic PCS-7?
After reading through many of Siemens brochures about the Simatic range - I'm still confused about the PCS-7...
Posted by Chrisstoffer, Herman on 16 February, 2001 - 1:15 pmSerial line switch
I am looking for a serial line switching device which routes a single serial line either to output a or output b.
Posted by A Boyce on 16 February, 2001 - 1:09 pmQuickPanel Jr / S7-300
QuickPanel Jr. to Siemens S7-300
Posted by Quim_Sabat on 16 February, 2001 - 11:55 amModbus/TCP Conversion between float & binary
I need to convert a float to his binary representation (32 bits, intel float, in a "0" and "1" string). Anybody knows how to do it or where to find the algorithm ?
Posted by Dennis Healy on 16 February, 2001 - 11:45 amOPC Driver/Server Development
Need help relating to OPC driver/server development -> where to begin, which toolkit to use, interfaces that need to be defined, etc.
Posted by thomas allen on 16 February, 2001 - 10:09 amresolver vs. tach
In a paper machine drive application, what are the advantages and disadvantages in using resolvers vs tachs?
Posted by David Fowell on 16 February, 2001 - 8:47 amWinCC database access by VB
Need database format and protocol info on WinCC database using VB6
Posted by automation group on 16 February, 2001 - 5:09 amFoundation Fieldbus or Profibus?
We are planning to use digital communication advantages for our plant. Which is acceptable to use Foundation Fieldbus or Profibus?
Posted by Brendan Larkin on 16 February, 2001 - 1:03 amTDC3000 CG Interface to Modbus/Profibus
Need to get data out of a Honeywell TDC2000 and TDC3000 CG on the LCN highway to Modbus or Profibus protocol
Posted by Steve Myres, PE on 15 February, 2001 - 7:45 pmCollision detection
I'm looking for a reasonably low cost sensor to detect impending collisions between two cranes running on the same ways. I must be able to apply it in a failsafe manner.
Posted by Martin Cutajar on 15 February, 2001 - 5:07 pmMass flow meter for tomato concentrate
Asking for advise regarding a mass flow sensor suitable for a tomato concentrate line.
Posted by P. Karuppasami on 15 February, 2001 - 5:05 pmLow flow rotameters
We need to install rotameters with the range as low as 1 - ml/min.
Posted by Rick Hudson on 15 February, 2001 - 5:03 pmVision System - Edge/Line Detection
Looking for a optical system which can scan a surface area approximately 4 cm X 4 cm ...
Posted by Michael Griffin on 15 February, 2001 - 4:03 pmPress force monitoring
We have recently been evaluating force vs. distance press force monitoring instruments to see if we want to switch from the product we have been using.
Posted by Jim Pinto on 15 February, 2001 - 3:38 pmJimPinto.com eNews 14 Feb 01
JimPinto.com eNews 14 Feb 01 - on the Web: http://www.jimpinto.com/enews/feb14-2001.html
Posted by K. Clendenen on 15 February, 2001 - 1:19 pmEncoders
Searching for a 4-20mA encoder
Posted by Per Thygesen on 15 February, 2001 - 12:34 pmOPC and DOTNET
What is the future of the OPC specifications in the the light of Microsoft's new .Net initiative?
Posted by Salai Kuberan E S, Manager/C&I on 15 February, 2001 - 9:45 amCurrent Transducer
Where to find a Current Transducer with following spec ...
Posted by Danijel Vidovič on 15 February, 2001 - 9:16 amControlView S5 driver
I need S5 driver for ControlView SW.
Posted by Ian on 15 February, 2001 - 8:26 amJIC Standards
Can anyone recommend a web site with this information or a book detailing the JIC Standards for Electrical Drawings.
Posted by Eness on 15 February, 2001 - 6:33 amHow to interface MCC with PLC
what commands are required to be sent to MCC from PLC and what it receives from MCC .
Posted by Jury Efremov on 15 February, 2001 - 4:55 amLarge screen (about 2x3 m)
Posted by Rickard Akesson on 15 February, 2001 - 2:27 amFlow-divider
To divide a fluid in to 4 equal parts
Posted by CHRIS THANOS on 14 February, 2001 - 11:19 pmSoftware/hardware interface help for a newbie!!!!
Need some help with software and hardware interface: Hardware (A-B PLC-5), (A-B PCMKI card B) Software (RS 6200 PLC-5 VERS 5.2 and RSLINX LIGHT VERS 1.7) running on Second Edition WIN 98.
Posted by Curt Wuollet on 14 February, 2001 - 8:28 pmEmbedded Linux Journal article on Puffin PLC...
Hi all. This is important and is for a technical audience: request from an editor at Embedded Linux Journal
Posted by Sam Lee on 14 February, 2001 - 6:46 pmModbus RTU Communication problem
I am using PanelMate (from Cutler-Hammar)to communicate with ACM (Siemens-Moore's product) through Modbus RTU protocol.In this application,PanelMate acts master while ACM slave.
Posted by Ronald Nijssen on 14 February, 2001 - 3:27 pmHoneywell S9000 Ethernet protocol
I am looking for information on the Honeywell Plantscape S9000 CPU, Ethernet protocol. Is this Modbus, or Open Socket communication with a defined Task code set? ...
Posted by Imran on 14 February, 2001 - 2:17 pmPump Control System
Maintaining pressure in line of pumps
Posted by Mehmet_Ilker_YILMAZ on 14 February, 2001 - 11:24 amS5 CPU921 CPU "PAA" fault
What is fault code "PAA" on S5 135 PLC, and what are possible causes?
Posted by Walt Boyes on 14 February, 2001 - 11:14 amAnother giant enters the information wars
Schlumberger, the energy and instrumentation giant is reportedly near an agreement to buy Sema PLC, a London-based information technology services company for about $5 billion. ...
Posted by giri on 14 February, 2001 - 11:12 amProfibus Protocol Specifications
Where can I get the complete Profibus Protocol Specifications/Architecture? ...
Posted by Rick Hudson on 14 February, 2001 - 10:42 amLow cost prox sensor
I would like information on a small, low-cost (in quantities of 100) prox sensor capable of counting gear teeth.
Posted by CEPRONI, Frank Ma Piti on 14 February, 2001 - 10:06 amElectrical Information or list
I need to know if exist any electrical List and if there are any, What is its address?
Posted by Drew Harpe on 14 February, 2001 - 9:46 am1746-NR4 RTD Module
We have had power interruptions 8 sec. apart. After these interruptions the rtd reading was 10 degrees higher than actual temperature. After cycling power for 5 sec. the reading was correct. ...
Posted by Allen Nelson on 14 February, 2001 - 8:19 amAn Ethical Question
An ethical question regarding PLC code "ownership", and how to determine it.
Posted by Mike Leaman on 14 February, 2001 - 7:39 amJAG Plc Info Required
I'm looking for information regarding a JAG.PCS2 Plc, which is at least 10 years old. The unit is interfacing between a Siemens 115U 944B and a monitor for the displaying of information and messages on a can filling line.
Posted by Norm Fong on 13 February, 2001 - 11:35 pmHoneywell Transmitters and DE Protocol
digital vs analog
Posted by Nucciarone, Joe on 13 February, 2001 - 12:41 pms5 output
I've encountered something funny with a siemens S5 135u cpu928a plc.
Posted by John Schaffer on 13 February, 2001 - 11:15 amRF Vacuum Transmitter
Looking for a compact sensor to measure vacuum in multiple "Rotating" chambers.
Posted by Andre Pablo G. Fausto on 13 February, 2001 - 9:34 amsmall rtu......
Looking for other small RTU with 1 or 2 4-20mA analog input, to be used as part of a flood forecasting system for rain gauge and water level measurement at various sites. ...
Posted by heather on 13 February, 2001 - 9:14 amSiemens s5-100u series vs. s5-115
Analog (j-type)compensation not working in Siemens s5-115 system(swaying wide). Are there special operations/functions for this processor that are different from s5-100 series(i have that manual)?
Posted by Jody Gallant CET on 13 February, 2001 - 8:57 amMitsubishi FX2N - RS485 commands
RS485 commands from a mitsu PLC
Posted by Shantanu Apte on 13 February, 2001 - 4:00 amInterchangeability of Automation Devices
In near future, will we be able to build a plant level automation by seamless integration of PLCs , CNCs , Servos , Motion Controllers Of different manufacturers without worrying about compatibility issues ? ...
Posted by Jeff Dean on 12 February, 2001 - 4:14 pmTower of Babel - Ethernet protocols, was HMI, SOFT: Where do we go from here?
While this is not strictly an HMI/Software question, it seems to relate to the "tower of babel" problem that has been touched on in previous few messages. ... What about the emerging standards for "scheduled" or "real-time" Ethernet protocols? ...
Posted by IP OMER BIN ABDUL AZIZ on 12 February, 2001 - 3:36 pmHART at well-heads
Does anyone have any experience with HART configurations at places such as oil or gas wellheads? ...
Posted by Walt Boyes on 12 February, 2001 - 3:09 pmISA Standards
You will all remember the discussion about ISA standards we had a while back. I would like to tell you what the result of that and other discussions were. ...
Posted by S2 on 12 February, 2001 - 2:43 pmAB RSLogix500 averaging values
On the AB RSLogix500, is there a quick way to determine the average of multiple points (integers)?
Posted by Ranjan Acharya on 12 February, 2001 - 11:17 amAPACS
I have not personally used APACS before (other DCSs such as ABB MOD300 and lots of PLCs / SCADAs / HMIs), and want to hear about people's experiences. ...
Posted by SANTHIRAJ on 12 February, 2001 - 10:19 amPLC COMPATIBLE SMOKE DETECTORS
Please get me URLs of smoke detectors which are PLC compatible..
Posted by Eric_Vasener on 12 February, 2001 - 10:00 amGE Fanuc Frameworx?
I work in France and only a few industries use softplc. I tried Frameworx fxview/fxcontrol . What do you know about this product? I need Modbus communication and Interbus for my application. Do you recommend me other products?
Posted by senthil kumar C. on 12 February, 2001 - 6:30 amcombining failure data information
I have two subsystems of which one has no. of failures per demand and another has a failure rate per hour. Now how to compute the system failure?
Posted by deenjohn on 11 February, 2001 - 11:25 amHMI which can comm over RS485 directly
I am in look out for any HMI vendor who can offer me a HMI with LCD display and can communicate over RS485.
Posted by VEDA on 11 February, 2001 - 3:49 amtesting a thyristor (SCR)
testing of scr
Posted by Anibal Hernandez on 10 February, 2001 - 10:36 amPLC on a motorized wheelchair
If I install a PLC on a motorized wheelchair...
Posted by derek on 10 February, 2001 - 7:30 amFind ac motor control ic
I need to find ac motor control ic ?
Posted by Andrew Burden on 9 February, 2001 - 6:01 pmRetrieving AB SLC 5/05 program/ladder diagram?
I need access to the control/programming logic of and AB SLC 5/04. I do not have the RSLogix or PLC-500 A.I. series software. I am not interested in changing the program, just viewing/analyzing for future optimization.
Posted by CK on 9 February, 2001 - 4:13 pmImporting ProWORX NxT info into Concept
I'm looking for away to import the documentation (symbols, comments, etc) from a ProWORX NxT program for a Modicon Quantum PLC into their other programming package, Concept. Documentation is lost when I send the program to the PLC in ProWORX and upload it in Concept...
Posted by David Bergeron on 9 February, 2001 - 3:55 pmGE Series 6 OPC Server
Does anybody know of an OPC server that will communicate with the old GE Series 6 PLC?
Posted by Neil Firmin on 9 February, 2001 - 3:36 pmFibre based Ethernet networks for PLC's Info sources
We have a extensive AB DH+ network running over several km's utilising armoured DH+ cable and AB Fibre optic repeaters in a copper to copper repeat mode. We are looking at the possibility of upgrading our PLC 5's (5/25,5/30,5/40's and SLC 5/04's) to ethernet with side car or new PLC5 "E" processors (not that keen on the Control Logix platform). I am looking for some good "independent" sources of information on ethernet networks run on Fibre based cable ...
Posted by James Swanson on 9 February, 2001 - 2:39 pmProsoft DNP 3800 to AB PLC 5/40
Having difficulties with BTW timeouts on interface between PLC 5 and DNP 3800 Module
Posted by Leroy Brown on 9 February, 2001 - 11:01 am4-wire Modbus ASCII net to keyup the radio
We have 3 devices (2 GE Horner slaves and CAC 5600 RTU) talking Modbus ASCII over 4 wire RS485 network. Client wants to add a radio (MDS1000) for communication with the SCADA system. How to key the radio? ...
Posted by M. Richards on 9 February, 2001 - 10:41 amConnecting Mitsubishi PLC to stepper
I would like information on connecting the Mitsubishi Programmable Controller model # F1-12MR-ES to a stepper motor. Help!
Posted by veda on 9 February, 2001 - 8:51 amweb site for electrical doubts
electrical questions - web resources?
Posted by veda on 9 February, 2001 - 8:48 amOn-load tap changing transformer
Can any one of you clarify this doubt. When winding between two taps will experience any problem like circulating current or anything else? ...
Posted by Cory Schaeffer on 9 February, 2001 - 5:13 amDIN vs. NFPA Conductor Sizing
Machine manufacturer disagrees with us on safe conductor sizing...
Posted by MFabrice on 8 February, 2001 - 4:00 pmMODBUS RTU ocx
Where can i find an MODBUS RTU ocx free without any expiration
Posted by Donald Pittendrigh on 8 February, 2001 - 3:58 pmWoodchipping plant
Any woodchipping plants using a Variable Speed Drive for the chipping motor?
Posted by Petter Sandgren on 8 February, 2001 - 2:24 pmABB Advant OPC server for AC100 & AC400 series
Timestamps in ABB OPC server for Advant Fieldbus 100.
Posted by Ric Peterson on 8 February, 2001 - 12:15 pmI need a multi-port Modbus to MB+ Bridge!
I have an application with 20 to 30 modbus devices that I would like to get onto a modbus plus network.
You look like a million dollars. All green and wrinkled.