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Today, Wednesday, May 22, 2013
what is interposing relay
New Replies:
By Steve Myres on 22 May, 2013 - 12:36 pm -
The phrase "interposing relay" is describing the relay by it's purpose in the system...
Is there a difference between an interposing relay and say an "ice cube" relay? I'm...
Originally posted by davidmcc
on 21 May, 2013 - 3:52 am
on 21 May, 2013 - 3:52 am Where are the lube oil heaters located?
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Davidmcc,
Good to hear you have located the heaters. Sounds like a very circuitous route--and...
The heaters pull out from the opposite side of the machine from where the terminals are. The...
By davidmcc on 22 May, 2013 - 5:19 am -
Thanks CSA,
you're right, the lube oil heater 23QT-1 is accessible at low level on the side of...
By turbinectech on 21 May, 2013 - 1:50 pm -
Our three are on the right side of the oil tank. There is a TIL on these, talks about reconfiguring...
Davidmcc,
Typically, the immersion heaters used on GE-design heavy duty gas turbines are in...
About modbus protocol
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By Lynn August Linse on 22 May, 2013 - 9:40 am -
Most slave and master devices support all addresses from 1 to 255, in part because many were...
I don't know what 248 to 255 are used for. They're not used because that's what the Modbus spec...
Posted by Sunil on 22 May, 2013 - 7:46 am
on 22 May, 2013 - 7:46 am We are running Frame 6, Mark V GT ,only with gas.Has HRSG. GT for captive power generation in process plant steam for process
Originally posted by DEWA on 6 May, 2013 - 2:02 am
on 6 May, 2013 - 2:02 am Action handler Fault from GE Fanuc PLC
Load running at limitation when running on fuel oil.
New Replies:
STEVEN,
I don't know of any way to test for passing of the liquid fuel bypass valve when the...
What is meant integrator convergence gain for servo regulator?
developing a telemetry system (RTU) based on a cellular modem with build-in GPRS TCP/IP...
New Replies:
I am also trying to do the similar project but in my case the RTU is a controller with GSM/GPRS...
Looking for PLC's that can be programmed in Ladder, FBD and Structured text, preferably with free, or low cost programming software.
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By brucewayne on 21 May, 2013 - 9:48 pm -
micrologix 1100 has free lite version software...
Originally posted by ESKAY on 19 May, 2013 - 4:16 pm
on 19 May, 2013 - 4:16 pm Distillate fuel servo calibration
New Replies:
Dear CSA ,
Thanks for directing me to the old thread , for the same issue of calibrating...
ESKAY,
I thought we'd been over this before....
http://www.control.com/thread/1336557419
...
ESKAY,
This idea of "calibrating servo-operated devices" on GE-design heavy duty gas...
By Bob Johnston on 19 May, 2013 - 7:09 pm -
It's difficult I know, really the only way to check is do a "dummy fire" with no spark...
we had a problem in the ratchet mechanism
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By STEVEN on 21 May, 2013 - 12:37 pm -
Experience ratchet pump both AC and DC pump cut-in during ratcheting operation.
Found motor pump...
By Venkatachalam, Valliappan X on 20 May, 2013 - 12:11 am -
In my experience, we faced similar problem in one of the turbines where the ratcheting was...
from the OPD Data Acquisition and Reporting department...
Release of Genesis 1.2, OPC Data Acq FreewareOriginally posted by TGMDev on 5 September, 2011 - 2:50 am
on 5 September, 2011 - 2:50 am Genesis 1.2 is the last release of a freeware used for OPC data acquisition, data saving (as csv) and data charting.
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Genesis OPC Explorer 2.0 is a Free OPC Client for connection to OPC Servers, data acquisition, data...
Originally posted by JBB on 19 May, 2013 - 1:42 pm
on 19 May, 2013 - 1:42 pm Setting up communication for Modbus Polling
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By Andrzej on 21 May, 2013 - 9:26 am -
Hello,
Try use the Modbus Tester from www.modbus.pl to check what errors you have.
Regards,
...
By William \(Bill\) L Mostia Jr PE on 19 May, 2013 - 9:30 pm -
What error did you get?
William (Bill) L. Mostia, Jr. PE
Fellow
SIS-TECH Solutions, LP
Any...
By Steve Myres on 19 May, 2013 - 7:00 pm -
Sounds like either your master or your slave doesn't want to return more than 50 registers at a...
If the water injection pump trips, what will happen to GT exhaust temperature?
New Replies:
Akhtar,
Water injection definitely has an effect on exhaust temperature, but not as much as some...
My new service laptop doesn't have a serial port and it seems parker doesnt make any cables to talk to their drive that go through USB.
New Replies:
Use a USB to serial adapter. Hook it to the SSD adapter. if you don't have the SSD adapter call...
Originally posted by DavidMcC on 6 May, 2013 - 1:06 am
on 6 May, 2013 - 1:06 am how to configure PD for AC power input?
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Hi CSA,
Sorry to just get back to you now, your answer is spot on, we don't have a DACA so we...
ABB "OS Loader" Configuration Problem
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By Rob on 21 May, 2013 - 1:16 am -
Sounds like you have faulty installation disks. You could be completely out of luck here unless...
FR6B tripping on Exhaust Temp spreads at FSNL
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By MWO on 20 May, 2013 - 10:15 pm -
We had sort of the same problem once. We had lost the diffuser off our compressor bleed valve...
Posted by Fai on 20 May, 2013 - 9:31 pm
on 20 May, 2013 - 9:31 pm CPD reduced CTDA remain at low temperature. Baseload was reducing as well
just inherited a new plant without adequate handover documentation. just need some info guys.
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Dear Nsikan,
For my site (frame 9FA), GE setpoint for inlet air filter dp alarm are 4inch H20...
Data is swapped when same ID, function code and no of registers are polled.
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By Lynn August Linse on 20 May, 2013 - 1:38 pm -
This is a common issue in "packet switched" radio systems, because the radios do retries...
By Darrin on 20 May, 2013 - 9:34 am -
It sounds like you have a synchronization issue, which can occur if you have a "dead"...
By Mark on 20 May, 2013 - 8:53 am -
Hello,
Yes, this is a known issue with MODBUS.
I had a slave device once that on occasion...
Originally posted by Suraj Shetty on 19 May, 2013 - 1:06 pm
on 19 May, 2013 - 1:06 pm Slow down communication between GE 90-30PLC which are using COMM_REQ SRTP channel commands. and these are communicating over ethernet through cellular modems. the data plan on the cellular modem has a limit of 5GB only.
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By Russ B on 20 May, 2013 - 9:59 am -
There is more information on this here:
http://www.plctalk.net/qanda/showthread.php?t=79691
(Be...
By Curt Wuollet on 19 May, 2013 - 11:42 pm -
Maybe a counter in the sending rung so it sends every other scan or less. I could be way off I...
Several steps of external resistance used for speed control on motor appear to have uneven amounts of resistance. Is this possible? What will the effect on the motor be?
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Ben, using the procedure I suggested illustrates how the number of speed-torque curve increments...
what kind of electrical CAD software is most used by you guys?
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By KMy on 20 May, 2013 - 6:00 am -
I agree that CADS Planner Electric is smart choice for electrical and automation design. it also...
Originally posted by SARAVANAN on 23 January, 2011 - 11:21 am
on 23 January, 2011 - 11:21 am linux base com port communication
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I just added TCP/IP capability and put it on a new web page:
http://www.ctrlterm.com/
...
Loss of MW's coming out CI
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By Bob Johnston on 19 May, 2013 - 7:03 pm -
1) What do you mean by "loss of air flow", can you explain more?
2) Do you have data...
How to change over Hydraulic oil filter in frame6B GE gas turbine, while the Gas turbine is in service.
New Replies:
Bob Johnston,
I have seen some non-GE packaged units which did not have transfer fill valves,...
Originally posted by Ahmed on 31 January, 2013 - 12:32 pm
on 31 January, 2013 - 12:32 pm FSR fuel reference - margin of FSR warm up
New Replies:
MWO,
I don't have a copy of Toolbox or a .m6b file for a gas turbine to review. To be specific,...
Request for help related to appropriate hardware-software interface
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It isn't a Modbus master you're looking for, it's some other set of functions relating to what...
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