Posts from...
Today, Tuesday, September 16, 2014
Topic: PLCs and related questions.
from the Forum department...
Yokogawa DCS Analog Module AAI143
Posted by Ariel on 15 September, 2014 - 2:45 pm
Difference between analog mA value and their correspondent raw value.
Originally posted by connected on 14 September, 2014 - 2:31 pm
Problem with SCADA system that supervises electrical power flow for a residential building. Connected with Modbus RTU over RS485 daisy-chained 2-wire. The communication on the bus seems to be destroyed with Schneider PM750 connected.
New Replies:
Two points: 1. RS485, technically speaking, is a 3 wire system, A, B and COMMON. But the...
Some notes: > They are interconnected through daisy-chain 2-wire RS485 The shield and...
By Lynn August Linse on 15 September, 2014 - 9:51 am -
It is most likely a grounding issue - that the 2 vendors approached the 'reference signal to...
Topic: Power generation equipment control.
from the gas turbine controls department...
Removing Flow Divider Instrumentation on GE 7EA Turbine
Originally posted by Dan on 14 September, 2014 - 9:37 am
GE 7EA turbine, will removing flow divider instrumentation affect operation on Fuel Gas, Mark IV Startup Lockout?
New Replies:
Dan, It should not. You can easily just determinate the speed pickups from the AIO TB and the...
Topic: Power generation equipment control.
from the CPP department...
Generator Turbine Speed Control
Originally posted by Manoj Baviskar on 10 September, 2014 - 4:10 am
Effect of Reactive load throw off on Turbine (GTG) speed after Generator independent from Grid power.
New Replies:
Manoj, 1) The fuel was not high at the time of isolation--it drifted higher. There are two...
Many Thanks CSA for the prompt reponse, Coming to your question: The turbine-generator (GTG)...
Topic: Engineering and workplace issues.
from the Calibration department...
Rosemount 3051 Calibration
Originally posted by josh0206 on 22 June, 2014 - 3:39 pm
Rosemount 3051 Calibration
New Replies:
Ok let's get you on the right track. I will give you a detailed explanation on how to setup any dry...
Yes. 12-117 in wc....
So if I go through the zero suppression that would be like me rearranging it from 0-105" H20...
Originally posted by Justin on 3 May, 2012 - 2:38 am
How to use a sigmatel USB IrDa dongle to communicate a Drager Xam 2000 with its CC Vision software for calibration
New Replies:
Hi. I have the same problem with a sigmatel usb-irda dongle and windows XP. Do you get to solve...
Topic: Power generation equipment control.
from the Maintenance department...
Fluid Variable Speed Drive Hunting
Originally posted by Mohammad Kashif on 13 September, 2014 - 5:03 am
Hunting problem in scoop of Voith Geared Variable Speed Coupling R 18 K 500 M
New Replies:
> if it is pneumatically actuated, you might check for water build up in the instrument air...
if it is pneumatically actuated, you might check for water build up in the instrument air line....
Topic: PLCs and related questions.
from the Process Control department...
Proficy Machine Edition 8.0
Posted by Chris IWO on 14 September, 2014 - 10:56 pm
Proficy Machine Edtion 8.0 and 8.5
Topic: Power generation equipment control.
from the Power Generation department...
When Will 88CR start?
Originally posted by Neo on 10 September, 2014 - 10:27 am
GT start up sequence, when will 88CR get started?
New Replies:
Neo, You don't have to ask--no one does! I wouldn't comment until you posted L1x and L1Z from...
CSA: Can i ask questions about L1X, L1Z and l4hr. I am just wondering whether L1X goes to...
CSA: To be honest, every of your response helps! "Lastly, can you determine how l72qez...
Neo, You used to use the Thumbs Up/Thumbs Down indicator when you found the post useful or...
CSA: Thanks a lot. Again it helps a lot! And i find l72qez is different from others,as others...
Neo, There was another query in the original post, and we'll get to that in a moment. I would...
CSA Thank you so much for your reply. Your detailed response always helps! I think the way...
Topic: Sensor technologies.
from the instrument department...
Gas Chromo readings
Originally posted by duks on 10 September, 2014 - 3:17 pm
Retention time of gas chromo
New Replies:
To the Moderator, In regards to the statement: "Moderator's note: I think...
Topic: Motion control, servos, steppers, etc.
from the Forum department...
Wafers Handling Robotics Arms
Posted by Pele1 on 14 September, 2014 - 8:44 am
Questions about robotics arms and the accuracy requirements in manufacturing
Posted by rbhadani on 14 September, 2014 - 5:39 am
Issue with Communication between Triconex PLC for SOE and Matrikon OPC server using TCM Module
Topic: PLCs and related questions.
from the Forum department...
Voltage Levels in DO Cards of PLC
Originally posted by Mihir Ramkrishna on 12 September, 2014 - 12:45 am
Which DO cards are better from the Reliability perspective - cards 24 VDC or cards that give 110 VAC?
New Replies:
My take is a bit different. DC are the most reliable in most circumstances. Solid state outputs...
The most reliable will be 24VDC transistor outputs. Relays have a lifetime. Triacs are in the...
Topic: Software, including programming, OS issues, etc.
from the Electrical Engineering department...
Communicate ER300P energy meter with PLC
Originally posted by Ummachan K.Joson on 7 February, 2014 - 3:43 am
How do I enter programming mode and communicate ER300P meter with PLC SIEMENS 200?
New Replies:
I communicated the meter with PLC. Changed the Meter ID using PLC program. The Values or the...
Topic: Software, including programming, OS issues, etc.
from the Forum department...
Concept 2.6 Compatiblity Issue
Originally posted by Anurag Purohit on 11 September, 2014 - 2:55 am
Running windows 8.1 64bit OS and have a concept 2.6 compatibility issue.
New Replies:
Concept 2.6 is a Win-16 program. It still runs on new Windows OS's but only the 32-bit versions. ...
Why not? Regards cww...
Have you considered contacting tech support or going to the tech support web site and looking for...
Sorry for the bad news: Concept is a 16 bit application and has not/will not be qualified on Win...
Topic: Power generation equipment control.
from the Generator Stator bar department...
Generator Maintenance
Posted by Fazle Hassan on 13 September, 2014 - 11:36 am
The generator tripped due to earth fault. We found some particles which defected the stator bar shorted to core. Now the surface of core is also damaged.
Topic: Power generation equipment control.
from the Process department...
Power Plant Performance
Posted by Tracy on 13 September, 2014 - 8:01 am
What are the important process parameters for power plant performance?
Topic: Software, including programming, OS issues, etc.
from the plc department...
Protection of blocks in step 7
Originally posted by A- Hossein on 16 November, 2006 - 12:59 am
I have some questions about protection of blocks
in SIMATIC Manager in step 7
New Replies:
Its really a good thing... thank you so much and thanks a lot for this. wonderful hunting :) ...
Topic: PLCs and related questions.
from the Instrument and Control department...
Siemens S5 CPU 922 Run and Stop LED Do Not Turn ON
Originally posted by Syed Waqar Azeem on 11 September, 2014 - 1:05 am
Run and Stop LED on front of Siemens S5 922 CPU doesn't turn ON on powering of rack. Only BASP LED on front of CPU is turned ON.
New Replies:
I have tried doing cold reset and warm rest on processor. The situation remain as such. Both STOP...
Have you done a cold start by holding the reset switch up and cycling the run switch from stop to...
Topic: Power generation equipment control.
from the operations department...
AVR Functioning and MVAR control
Originally posted by suryapadhu on 11 September, 2014 - 12:01 pm
AVR Functioning and MVAR control for Gas and Steam turbines
New Replies:
As usual expected Mr.CSA is the one who strikes the reply earlier. Thank you very much sir... ...
suryapadhu, Thank you for taking the time to search through the archived threads looking for an...
Topic: Communications systems and equipment.
from the Forum department...
TDC 3000 Remote Station Hanging
Posted by Jiftim on 12 September, 2014 - 2:15 pm
Remote Honeywell ES-T hangs with the RPS kit. Is it possible to extend the LCN using fiber without using obsolete Honeywell equipment?
Topic: Sensor technologies.
from the Instrumentation department...
ABB Flowmeter -Flow Data Is Less
Originally posted by sandeep on 11 September, 2014 - 6:27 am
flow meter data is less compared to other flowmeters
New Replies:
what are the units for the 20 mA value? how long does it take for the 1 meter level change?...
Hello Walt 4-20mA output from the flowmeter is taken to SCADA (Labview) through PLC (Schneider) ...
>> "flow meter data is less compared to other flowmeters" >other flowmeters? ...
> 1) Is this a new installation or a new problem with an existing, previously satisfactory...
Couple questions for you. Which output are you using, or are you looking at a totalizer on the...
> "flow meter data is less compared to other flowmeters" other flowmeters? ...
1) Is this a new installation or a new problem with an existing, previously satisfactory...
Topic: Power generation equipment control.
from the maintenance department...
Different Parameters on Siemens 7SJ6005 Relays
Posted by paru on 12 September, 2014 - 12:34 pm
Why are some of the parameters in new Siemens 7SJ6005 relay missing or different from relay model with the same part number?
Posted by farid on 11 September, 2014 - 10:13 pm
Vendor converts input signal before 1900/65A and convert back to same signal at the output
Topic: Engineering and workplace issues.
from the Forum department...
DCS analog input problem
Originally posted by mahmoud fawzy on 4 September, 2014 - 7:10 pm
DCS Analog input signals didn't work with ADAM card
New Replies:
Hi, David >Given the nature of what you've reported thus far, I can't predict > what will...
Given the nature of what you've reported thus far, I can't predict what will happen if you connect...
Topic: Communications systems and equipment.
from the Forum department...
RSLinx issue in VMWare WIn 7 32 bit VM
Originally posted by Paul on 11 September, 2014 - 11:28 am
I can do a serial upload and download but I cannot go online with RSLogix 500 inside a VM running WIn 7 32 bit
New Replies:
Years ago I had trouble with VMWare and a Keyspan USB to serial device. I switched over to a Gearmo...
Topic: Human-Machine Interface and SCADA.
from the hmi department...
ABB CP430T HMI
Posted by jackson on 11 September, 2014 - 1:07 pm
Setting up a trends (graph) in ABB CP430T HMI
Topic: Human-Machine Interface and SCADA.
from the C&I department...
Mark V Signal Scaling in HMI
Originally posted by VM on 11 September, 2014 - 8:25 am
Exciter signals gain in mark V
New Replies:
VM, Hmmm.... Well, even if these signals appear in the IO.ASG for a unit, it's not certain they...
Topic: Power generation equipment control.
from the Simulation department...
Automatic Volage Regulation
Originally posted by Dave on 6 August, 2013 - 1:25 pm
Question on the behavior of AVR after synchronization.
New Replies:
> We have on load tap changer for transformer. When generator MVARS are high (lagging side) due...
Topic: Sensor technologies.
from the instrument department...
Level Transmitter on Condensate Drum
Originally posted by rosemount on 10 September, 2014 - 2:20 pm
Erratic reading for level transmitter on condensate drum
New Replies:
You are really not giving much for us to work with so if the assumption I am making is wrong it is...

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