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- PC reliability?
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- PC reliability?
- Windows, real time
- PID loops
- PCs vs. PLCs
- Replacing people
- MS 'monopoly'?
- Software quality
- Where do we go from here?
- Why pay?
Fortune
In specifications, Murphy's Law supersedes Ohm's.
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Posts from...
Saturday, October 27, 2007
Concept Error - User not logged in (OL9-1600)
New Replies:
By Rahul Mohite on 27 October, 2007 - 5:55 pm -
By Rahul Mohite on 27 October, 2007 - 5:55 pm -
This could be the problem of your Modbus cable.
Please change your Modbus cable and proceed.
pl...
Can someone explain the whole 4-20mA thing to me?
New Replies:
By Curt Wuollet on 27 October, 2007 - 4:59 pm -
By Curt Wuollet on 27 October, 2007 - 4:59 pm -
I've been working with a large UV ink polymerization system that uses saturable reactors to control...
By Michael Batchelor on 27 October, 2007 - 1:09 am - Wow, this brings back some memories. I can't even remember the last time I saw a mag-amp. I'm sure...
Link twido PLC with Easy touch touchscreen
New Replies:
By Dweebyone on 27 October, 2007 - 4:56 pm -
By Dweebyone on 27 October, 2007 - 4:56 pm -
~Is that all!
A little more info would be useful!
Method of coms?
Cabling distance?
Surely...
Block diagram and how to use microcontroller
New Replies:
By Curt Wuollet on 27 October, 2007 - 4:36 pm -
By Curt Wuollet on 27 October, 2007 - 4:36 pm -
Isn't that what you were supposed to have learned? I would expect you have books to read.
...
Can anyone tell me where I can obtain a Omron CPM1 Connector?
I have to interface Caterpillar engine, which is RS-485 standard, with my Modicon Premium PLCs.
New Replies:
By Curt Wuollet on 27 October, 2007 - 3:39 pm -
By Curt Wuollet on 27 October, 2007 - 3:39 pm -
You do need a ground reference though (or isolation) to keep the input pins within their common...
By David Adams on 27 October, 2007 - 2:07 am - RS 485 2 wire does not utilize the ground for a signal common. The signal is between the Rx-/Tx-...
SLC 150 command set
New Replies:
By Curt Wuollet on 27 October, 2007 - 3:36 pm -
By Curt Wuollet on 27 October, 2007 - 3:36 pm -
I would check the voltage at the terminals, it might not be high enough. Also, as these units age...
By John Kitz on 27 October, 2007 - 2:26 am - I hope you will help a dummy. When I retired, I was able to get an SLC-150, AB 1745-LP153, and now...
How to decide and calculate fuse sizing?
New Replies:
By Curt Wuollet on 27 October, 2007 - 3:32 pm -
By Curt Wuollet on 27 October, 2007 - 3:32 pm -
For that matter, there is a great deal more here that should be done by a competent person. Scares...
By Trevor Ousey \(List Bigpond\) on 27 October, 2007 - 12:01 pm - You should be more specific. What are you using the fuse for?
Generally the fuse/circuit breaker...
I need to communicate to a ControlLogix CPU with a MODBUS Plus Network.
New Replies:
By Bob Peterson on 27 October, 2007 - 12:14 pm -
By Bob Peterson on 27 October, 2007 - 12:14 pm -
I think prosoft has a module you could use....
Generator voltage blinks on <I> Dos Interface when ready to synchronize in Auto mode.
New Replies:
By CSA on 27 October, 2007 - 12:09 pm -
By CSA on 27 October, 2007 - 12:09 pm -
Well, this is very interesting. You have been able to synchronize the unit. How were you able to...
By Mambo on 27 October, 2007 - 1:52 am - Dear CSA,
Thank you and everybody for the reply.
All the card ribbon cables were checked for...
J-bus to Modbus communication
New Replies:
By Jose Thomas on 27 October, 2007 - 12:02 pm -
By Jose Thomas on 27 October, 2007 - 12:02 pm -
My understanding is that J-Bus and Modbus has the same set of function codes and frame formats,...
Rebooting problem with mark v computers during lightning
Sql Server of my cimplicity hmi is disappeared somehow for this reason i can't save the trends!
Please can someone tell me how to caculate motor power?
New Replies:
By Phil Corso, PE on 27 October, 2007 - 11:58 am -
By Phil Corso, PE on 27 October, 2007 - 11:58 am -
Responding to Hung's 19-Oct (17:03) query... if you are still seeking a solution, I have a Nomogram...
I want to generate audible alarm in my WinCC
New Replies:
By Ronald on 27 October, 2007 - 11:56 am -
By Ronald on 27 October, 2007 - 11:56 am -
Since V6.0 WinCC offers a so named "Horn editor"
This configuration tool allows you to...
Please let me know how to calculate the voltage drop of 1P X 1.5sqmm Instrumentation cable (BS 5308 Part 2, Type 2) connected between PLC & PT (4-20mA O/P) placed 1500m apart.
New Replies:
By xxx on 27 October, 2007 - 11:55 am -
By xxx on 27 October, 2007 - 11:55 am -
But for voltage drop, we need to have voltage available at transmitter end (+ve terminal). This...
ABB 800 A, Siemens PCS 7, Rockwell Automation... which is best for power management system?
New Replies:
By Ronald on 27 October, 2007 - 11:54 am -
By Ronald on 27 October, 2007 - 11:54 am -
I would consider checking out SICAM
http://www.siemens.com/sicam
-R...
which size is it counting?
The unit running Core <C> had alarm DCC IO OBJ#1 at DCC bar graph flash.
Debugging possibilities in other languages than SCL
I need to select a relative humidity sensor for measuring humidity prior to welding.
New Replies:
By syurish on 27 October, 2007 - 2:24 am -
By syurish on 27 October, 2007 - 2:24 am -
Please see the following link for technology review:
...
Copy and paste address field of a DB to an Excel file.
New Replies:
By k.zonouzi ahmad on 27 October, 2007 - 2:22 am -
By k.zonouzi ahmad on 27 October, 2007 - 2:22 am -
Hi Luca Gallina,
Thank you for the reply, I got my answer. But the site you mentioned was even...
Is Standard Upload possible for IEC 61131-3 Compliant PLC Devices?
New Replies:
By Michael Griffin on 27 October, 2007 - 2:18 am -
By Michael Griffin on 27 October, 2007 - 2:18 am -
IEC 61131-3 is a description of the programming language only. It doesn't deal with how to upload...
Want to read data from a Modbus compatible unit using Honeywell's TPS system
New Replies:
By Troy Mcgill on 27 October, 2007 - 2:06 am -
By Troy Mcgill on 27 October, 2007 - 2:06 am -
Hello,
Do you know where I can download the OP01501.pdf?
Any help is appreciated.
Thanks,
...
We are going to control the position and speed of a stepper motor using em 253 positioning module with Siemens S7 200 PLC (CPU 222, version - 02.01).
New Replies:
By Marc Sinclair on 27 October, 2007 - 2:03 am -
By Marc Sinclair on 27 October, 2007 - 2:03 am -
Hi,
The EM 253 cannot drive a stepper directly, so stepper motor specificatins are no help...
DCS - Small and mid-size suppliers
Does anyone know where on the web I can find resources for learning Intools?
New Replies:
By Eduardo Viera on 27 October, 2007 - 1:59 am -
By Eduardo Viera on 27 October, 2007 - 1:59 am -
Dear Hadi,
If you need help about Intools or any platform of Intergraph, please write to my...
from the Are there any decent ones anywhere??? department...
PL7 Pro guide for using bridging and FIP, etc.I'd like to be able to assist vendors with setting up the PLCs
New Replies:
By Graeme on 27 October, 2007 - 1:54 am -
By Graeme on 27 October, 2007 - 1:54 am -
It's not a safety issue, as what I do doesn't interfere with the way the PLC controls machines.
...
Simple AC drive motion control for measuring cable wire length with accuracy
RS-485 communication
New Replies:
By Jerry Miille on 27 October, 2007 - 1:51 am -
By Jerry Miille on 27 October, 2007 - 1:51 am -
I do not fully understand your problem, but, please look at our products that can either transform...
By Professional on 27 October, 2007 - 1:17 am - Mr. Naeem,
You have purchased a Modbus communication package (ALR111, ALR121) for your Tullow...
By A.K.Hait on 27 October, 2007 - 1:04 am - You need to configure the flow computer as Master and DCS & GAS Chromotograph as slaves. Give...
By dchartier on 27 October, 2007 - 12:59 am - Hello Naeem;
A Modbus network running on RS-485 is multidrop, so a master can access two slaves...
I would like to find a sensor to measure the density of sludge flowing in the pipe.
Flow variations for one well with two different separators
New Replies:
By James on 27 October, 2007 - 1:48 am -
By James on 27 October, 2007 - 1:48 am -
Please tell me your test separator details for our checking....
Looking for the constant value for LTKALM1 on a GE Frame 7EA MKV.
Current to Voltage Converter
New Replies:
By Curt Wuollet on 27 October, 2007 - 1:43 am -
By Curt Wuollet on 27 October, 2007 - 1:43 am -
You need a 1k ohm 1% resistor. It will be faster than anything in industrial control.
Regards
...
By Issac Issachar on 27 October, 2007 - 1:26 am - Use a 1,000 ohm resistor.
Ohms Law:
R = E/I
R = 10.0V/0.010A = 1000 ohms
Issac...
By KW on 27 October, 2007 - 12:54 am - Use a 1000 Ohm resistor......
from the Automation List department...
Multiple MVI46-MCM Modbus modules installed on one SLC-5 chassisUsing more than one Prosoft MVI-46 MCM module for SLC-5 PLC
New Replies:
By CH on 27 October, 2007 - 1:43 am -
By CH on 27 October, 2007 - 1:43 am -
Easiest way is to call Prosoft, as I'm sure they have example ladder.
To do it yourself, do...
By Eddie Willers on 27 October, 2007 - 1:40 am - You can use as many MV46-MCM modules in a single SLC-500 1746-series chassis as you wish.
They...
The best Active X control to create a table object
looking for short term RTOS training
New Replies:
By Pradeep on 27 October, 2007 - 1:38 am -
By Pradeep on 27 October, 2007 - 1:38 am -
Let me know if you need training on embedded, ARM, VXworks, Threadx, USB, Ethernet (Drivers), etc....
I have an application where I am using a Siemens 315-2DP CPU to control 3 x machines. My client now wants a colour screen (plus/minus 6 inches) at each of the machines to display certain process values at each machine...
New Replies:
By Tony R. Gunderman on 27 October, 2007 - 1:32 am -
By Tony R. Gunderman on 27 October, 2007 - 1:32 am -
If you have just a single PLC, you may want to look at Maple Systems (http://www.maplesystems.com)....
By David Adams on 27 October, 2007 - 1:29 am - Have you looked at Maple Systems?...
By deepak on 27 October, 2007 - 12:50 am - Hello,
You can go for HAKKO Touch Screen. This is the cheapest solution. You can go for...
The latest JimPinto.com - Connections for Growth & Success(TM) eNews No. 240 - 25 October 2007 - is on the web...
Function of Turbine – Compressor set
New Replies:
By S. Radhakrishnan on 27 October, 2007 - 1:30 am -
By S. Radhakrishnan on 27 October, 2007 - 1:30 am -
Droop control applies only to generator drives. Mechanical drive gas turbines operate on...
By controlmech on 27 October, 2007 - 1:18 am - Isoc and droop control modes are only relevent when controlling a generator. The control modes have...
I have a need to install an old ISA card into a PC with PCI cards...
I am interested where the automation specialists are located in the organizational structure of the enterprise (especially in the food industry)...
New Replies:
By Nik Kinze on 27 October, 2007 - 1:25 am -
By Nik Kinze on 27 October, 2007 - 1:25 am -
In the past the automation gurus have usually been in the Engineering departments. Around 2000 or...
By Rana Muhammad Imran on 27 October, 2007 - 1:09 am - Dear sir,
In most organizations, there is an Electrical & Instrumentation department...
Modsoft connection error when directly connected to PLC
Drawings for Linklater Mill
I am doing a project for rice polishing machine, in that I want to display the amount of paddy or rice flowing through the machine...
Active power transducer required
New Replies:
By SEDAT on 27 October, 2007 - 1:01 am -
By SEDAT on 27 October, 2007 - 1:01 am -
Visit http://weigel.com.de
The model is "dgw2.2" or "vgw2.2", it depends on...
Want to assign tag to make toggle
New Replies:
By sergey on 27 October, 2007 - 12:53 am -
By sergey on 27 October, 2007 - 12:53 am -
The same things only on Visual Basic, but for me C++ is more understandable....
I need an advice on choosing a cost effective radar sensor
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