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Posts from...
Friday, August 15, 2008
from the Automation List department...
How can you mask an output card in Step 7?
Topic: PLCs and related questions.
Originally posted by o4a0e1 on 8 August, 2008 - 7:45 pm
What I'm trying to do is use 3 outputs on a card as a BCD to another device. I'm getting some obvious issues and would like to find out the best way to overcome them.
New Replies:
By Michael Griffin on 15 August, 2008 - 1:59 am -
The conventional way of modifying certain bits in a word without affecting the rest is to use an...
from the Automation List department...
Different PLC Manufacturer's Market Share
Topic: PLCs and related questions.
Originally posted by Hamid on 4 October, 2007 - 8:34 pm
Does Anybody Know The Different PLC Manufacturer's Market Share?
New Replies:
By Hamid on 15 August, 2008 - 1:58 am -
Thanks Saji, Hamid...
from the Standards interpretation department...
Modbus - reads of multiple registers
Topic: Engineering and workplace issues.
Originally posted by MR on 12 August, 2008 - 9:59 pm
I need help settling an argument!

Can a valid Modbus register ever be a size different from 16 bits?
New Replies:
By Michael Griffin on 15 August, 2008 - 1:56 am -
In reply to Mark: I think he would have to do more than just get a third party master and test it....
By Jerry Miille on 15 August, 2008 - 1:45 am -
This is really pretty common "extension" of the Modbus protocol. While not really...
from the Automation List department...
MarkV hard disc back up
Topic: Human-Machine Interface and SCADA.
Originally posted by Mundodiyil iqbal on 10 February, 2008 - 3:46 pm
During HMI hard disc back up,back up process stops with the message " Error 1805 occurred while running the script".
New Replies:
By Iqbal on 15 August, 2008 - 1:54 am -
Thank you. I had tried all the options and found working in only one HMI. Finally CD drives of...
from the Maintenance department...
Load Rejection in ISOC mode
Topic: Human-Machine Interface and SCADA.
Posted by Iqbal on 15 August, 2008 - 1:52 am
During parallel operation, trip of another GT, enabled the load pick up in GT with mark V. Soon this GT start rejecting the load with speed dropping.
from the gas turbines department...
Fundamentals of gas turbines
Topic: Engineering and workplace issues.
Posted by ajiloreolayiwola on 15 August, 2008 - 1:52 am
Please, I need information on the fundamental working principles of a gas turbine.
from the how high the level? department...
Higher-level languages
Topic: Programming languages.
Originally posted by Mike Bacidore on 5 August, 2008 - 1:12 am
What constitutes a higher-level language?
New Replies:
By James Ingraham on 15 August, 2008 - 1:51 am -
Michael Griffin, quoting "Programming Industrial Control Systems Using IEC 1131-3" by...
Topic: Engineering and workplace issues.
Originally posted by p on 10 August, 2008 - 3:47 pm
link for the free Down loadable PDF book for Basics of Control and instruments?
New Replies:
By yoga on 15 August, 2008 - 1:50 am -
I sent comments on this issue before, but seems it was blocked. My point is that there are millions...
from the Automation List department...
Redundant AC800M
Topic: Engineering and workplace issues.
Originally posted by Mik on 7 August, 2008 - 12:16 am
Redundancy feature of AC800M controller from ABB
New Replies:
By Mik on 15 August, 2008 - 1:48 am -
PVRN, That is very strange to me. Is that from your own experience? I have found on the...
By daniel on 15 August, 2008 - 1:37 am -
Hi, Had some experience with the AC800M series. Very cost competitive. We bought 1 system for...
from the Automation List department...
Embedded systems summer training in Delhi
Topic: Engineering and workplace issues.
Originally posted by Anonymous on 9 February, 2007 - 2:41 pm
I want to know about the company that provides training program on embedded systems located at Delhi sites.
New Replies:
By Vishal on 15 August, 2008 - 1:46 am -
I work with STMICRO and there is no Madhvi Goyal in STMICRO. Stop publicising such lies....
from the Automation List department...
Why is it 4-20
Topic: Continuous process industries, DCS questions.
Originally posted by Rafa on 16 October, 2007 - 11:28 pm
Can someone explain the whole 4-20mA thing to me?
New Replies:
By kannan on 15 August, 2008 - 1:46 am -
All companies are using 4-20 mA as standard, because suppose if we are using 0-16 ma means, for 2.5...
from the Automation List department...
Auto synchronizing
Topic: Continuous process industries, DCS questions.
Originally posted by Anonymous on 12 August, 2008 - 9:58 pm
Mk4-auto_synch_int_00xx
New Replies:
By CSA on 15 August, 2008 - 1:40 am -
I've personally struggled with understanding how this algorithm describes what it does. It's...
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