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from the Brain Dump department...
Control.com Post Archive
Continuous process industries, DCS questions. topic
Posted by MPAC on 15 August, 2014 - 1:29 pm
Difference Between Mark V Type 'A' or 'B' Panel
What is the difference between a Mark V type 'A' and a type 'B' Panel? Can you tell by looking at it?
Communications systems and equipment. topic
Posted by Harvard on 15 August, 2014 - 1:17 pm
Slave Device Lacks Connection to RS-485 Common Connection
Need to know how a slave device that lacks access to the RS-485 COMMON manage to maintain a Receiver common mode voltage between -7 and +12.
Communications systems and equipment. topic
Posted by Oil & Gas on 15 August, 2014 - 12:11 pm
Communication Between Telemetry System P6008/9 and Computer
I need to know how to communicate between telemetering system and PC using cables RS232.
Application Questions and Problems topic
Posted by Don Wier on 15 August, 2014 - 10:55 am
Concepts 2.5 SR2 Error on Windows 8.1
I am getting error os errno: -35 and then error id: AL-11343. I found the solution for Windows 7 but cannot find a solution for Windows 8.1.
Communications systems and equipment. topic
Posted by ABB 800xa on 15 August, 2014 - 10:03 am
ABB 800xA Operator Station Disabled. Unable to Connect Operator Station
Our ABB 800xA DCS server restarted automatically. During restart, all operator stations hung. Unable to connect. Need help resolving the problem.
Communications systems and equipment. topic
Posted by Whitepage on 15 August, 2014 - 4:30 am
Modbus Register Address
I have a question about entering the register address in our program PME when I have a 4-digit address.
Communications systems and equipment. topic
Posted by Curt Wuollet on 14 August, 2014 - 9:15 pm
Re: Replace RS-485 with Siemens Profibus Cable
I am building a Modbus RTU network and am considering replacing RS-485 cable with Siemens Profibus cable. Want to hear from those who have done this.
Power generation equipment control. topic
Posted by KOKORI on 14 August, 2014 - 6:38 pm
Can a Low-Temperature Gas Cause the ESD Valve to Close?
Does a low temperature gas from the Water Bath Heater causes the Emergency Shut Down valve to close?
Power generation equipment control. topic
Posted by Chris IWO on 14 August, 2014 - 5:28 pm
PQM II Setup for Generator
Configuring a GE PMQ II for metering the power readings. Can anyone help with the specification I need to enter into the PQM?
Communications systems and equipment. topic
Posted by JIMMY SALDIVIAS on 14 August, 2014 - 12:24 pm
Replace RS-485 with Siemens Profibus Cable
I am building a Modbus RTU network and am considering replacing RS-485 cable with Siemens Profibus cable. Want to hear from those who have done this.
Power generation equipment control. topic
Posted by Rangacharya on 14 August, 2014 - 2:29 am
Steam Turbine Gear Box
15 MW Steam turbine gear box has high vibration at 3 to 4 MW load. What is the probable reason for this phenomenon?
Engineering and workplace issues. topic
Posted by syednifty on 13 August, 2014 - 4:30 pm
Electrical Dynamo Fails When the Load is On
Electrical dynamo is failing when the load is on.
Software, including programming, OS issues, etc. topic
Posted by mostafa qasemi on 13 August, 2014 - 2:02 pm
Honeywell DCS & ESD Load Calculation
CPU load calculation for control modules (in C300).
Continuous process industries, DCS questions. topic
Posted by Gerald Beaudoin on 13 August, 2014 - 12:09 pm
What Constitutes a Cycle for Preventative Maintenance Purposes?
A manufacturer of a valve and actuator specs the life at 2 million cycles and defines a cycle as 0-90 % movement. If a valve sits all day oscillating around 50-60, what constitutes a cycle for preventative maintenance purposes?
Information resources, documentation. topic
Posted by Walt Boyes on 13 August, 2014 - 10:26 am
Re: Translator Assistance Please, Ajuda Por Favor
Looking for a Portuguese speaker to help with purchasing products from a Brazilian company.
Engineering and workplace issues. topic
Posted by Control Engineer on 13 August, 2014 - 8:23 am
Ruston TA1750
Information request for Ruston TA1750
Communications systems and equipment. topic
Posted by bammaroc on 13 August, 2014 - 6:33 am
RS-485 cable recommended reference
RS-485: Reference recommended cable for Modbus communication between DCS and MVI94-MCM systems or PLC
Software, including programming, OS issues, etc. topic
Posted by Ramesh on 13 August, 2014 - 5:08 am
GE TIL 1480-2R1
Can someone please tell me what is the text of GE TIL 1480-2R1? What exactly does it say?
Power generation equipment control. topic
Posted by sriram sandep on 12 August, 2014 - 7:13 pm
Loss of Cooling Water to Steam Turbine Condenser
What will happen in special circumstances when there is a loss of Cooling water supply to the condenser
Power generation equipment control. topic
Posted by Bill Futch on 12 August, 2014 - 4:08 pm
GE Frame 7EA Combustion Turbine Starting Motor
Starting motor does not cutout when a normal shutdown is given below 60% speed.
Engineering and workplace issues. topic
Posted by Benjamin on 12 August, 2014 - 3:39 pm
Questions about Designing a Gas Processing Plant - student project
I need advice about a gas processing plant I'm trying to design, as an exercise.
PLCs and related questions. topic
Posted by marinus on 12 August, 2014 - 3:51 am
Sending and Receiving Commands in Master Slave Configuration
Master and slave principe with exchanging information thru PLC network
PLCs and related questions. topic
Posted by Chris IWO on 12 August, 2014 - 12:08 am
GE Fanuc RTU LM 90 Communications Software
Set up of Master RTU PLC to communicate with Remote Telemetry PLCs
Power generation equipment control. topic
Posted by PC on 11 August, 2014 - 6:15 pm
Frame 9e Spike
Frame 9e dwatt control
Continuous process industries, DCS questions. topic
Posted by Gary on 11 August, 2014 - 2:28 pm
Control Valve Position Command Signal
Looking for a device that generate control valve position signal for open loop control
PLCs and related questions. topic
Posted by Srbrg on 11 August, 2014 - 1:37 pm
Calculating Input Current
Calculating the input current to PLCs for Armorblock - 1732E-IB16M12SOEDR
Communications systems and equipment. topic
Posted by Robert Perez on 11 August, 2014 - 8:33 am
Profibus interface ABB DI801 slave with SST-PFB-CLX master
Connecting an ABB DI801 profibus to module-bus slave gateway with a SST-PFB-CLX master
Software, including programming, OS issues, etc. topic
Posted by Javier Fontalvo on 10 August, 2014 - 9:46 pm
Student project- problems using Matlab's filter command
Trying to obtain parameters from given data using least squares. Things don't go so well
Local and wide area networking in factory automation. topic
Posted by Yousif on 10 August, 2014 - 8:29 am
Can OPC-UA replace DNP3 for telemetry and SCADA?
What is the difference between OPC-UA and DNP3 protocol specially in low level layers?
Power generation equipment control. topic
Posted by ahmed on 10 August, 2014 - 5:04 am
GE MS6001B exhaust over temperature
have a problem of over exhaust temperature in GE MS6001B unit lead to the unit goes into temperature control mode during start up
PLCs and related questions. topic
Posted by Chris IWO on 9 August, 2014 - 5:52 pm
RTU Errors in GE Fanuc LM 90 30
Lost of Slave RTUs - need help understanding error messages
Continuous process industries, DCS questions. topic
Posted by bipin on 9 August, 2014 - 1:47 pm
weight measurement from DP tx
weight measurement in a liquid tank which has different densities
Power generation equipment control. topic
Posted by Izhar on 9 August, 2014 - 3:29 am
Atomizing air cooler modification
Atomizing Air Cooler Modification
Power generation equipment control. topic
Posted by raul on 9 August, 2014 - 2:45 am
Steam turbine Bypass Locks
Approximate number of steam bypass locks
Information resources, documentation. topic
Posted by Curt Wuollet on 8 August, 2014 - 11:44 am
Translator Assistance Please, Ajuda por favor
Looking for a Portuguese speaker to help with purchasing products from a Brazilian company
Software, including programming, OS issues, etc. topic
Posted by Jeff Julian on 8 August, 2014 - 8:38 am
HC900 C50 Controller version 1.0x firmware upgrade to higher version.
Is there a way of upgrading our HC900 C50 Version 1.0x to a higher version to take advantage of its features w/o changing the cpu?
Software, including programming, OS issues, etc. topic
Posted by scientif on 8 August, 2014 - 6:32 am
SCADA and HV/LV distribution substation automation
How to automate HV/LV distribution substations using SCADA.
Engineering and workplace issues. topic
Posted by Aravazhi on 8 August, 2014 - 3:55 am
Equation for Flow conversion in DCS
Need help calculating the DP flow in m3/hr. Have most of the equation.
Power generation equipment control. topic
Posted by Chris Wehr on 7 August, 2014 - 7:42 pm
Mode 1 and Mode 2 in Turbine Control System
Looking for descriptions/definitions of Mode 1 and Mode 2
Continuous process industries, DCS questions. topic
Posted by Gary on 7 August, 2014 - 11:49 am
Null Current of Integrating Actuator
What is the null current of an integrating actuator?
Sensor technologies. topic
Posted by Saurabh on 7 August, 2014 - 7:52 am
Honeywell XNX voltage drop
Honeywell XNX shows voltage drop after connecting the TX
Power generation equipment control. topic
Posted by henry lob on 7 August, 2014 - 7:24 am
voltage variation with load variation on generators
increase in voltage with increase in load tripping tools
Engineering and workplace issues. topic
Posted by Vignesh on 7 August, 2014 - 5:03 am
Equal Percentage Valve
Why equal percentage control valve is commonly used in steam line?
Power generation equipment control. topic
Posted by N.V.Q on 7 August, 2014 - 4:47 am
PSVO servo control module
Mark VI hardware system---PSVO servo control module
Power generation equipment control. topic
Posted by Izhar on 6 August, 2014 - 12:53 pm
Gas Turbine Gearbox Bearing Damage
Possible causes for gas turbine gearbox bearing damage
Engineering and workplace issues. topic
Posted by Rushi Shroff on 6 August, 2014 - 10:20 am
Relationship between VLSI & Embedded Hardware Design...
Design of Digital Systems, System Architectures, Hardware description Languages required for VLSI Design such as VHDL and Verilog.FPGAs, CPLDs, ASIC Design Issues, CMOS Technology, VLSI Design techniques & Relationship with embedded hardware.
Communications systems and equipment. topic
Posted by Debo on 6 August, 2014 - 3:25 am
Communications between AB PLC and Siemens HMI
AB PLC cannot communicate with Siemens TP1200 HMI over ethernet i/p. PLC and HMI are in different gateways.
Computers in manufacturing; also hardware discussion. topic
Posted by Patxi on 5 August, 2014 - 1:17 pm
Transferring Parameters from BOSCH 120
How to transfer the parameters and programs from the BOSCH CC120 to/from a PC?
PLCs and related questions. topic
Posted by hanninpe on 5 August, 2014 - 5:57 am
Siemens Siwarex U zeroing problem
Zeroing Siwarex U with SFC58 fails randomly, what could cause?
Application Questions and Problems topic
Posted by Abhi on 5 August, 2014 - 4:22 am
Looking for mA to Ohm Converter
Looking for a device that can convert 4-20 mADC or 0-10 VDC to 1~5 KOhms.
Continuous process industries, DCS questions. topic
Posted by mahmoud on 5 August, 2014 - 4:09 am
Temperature Controller Problem
Problems reading RKC temperature controller.
Communications systems and equipment. topic
Posted by control on 4 August, 2014 - 8:53 pm
Modbus interface with T3000
Other than Siemens device to interface with Siemens T3000 for modbus communication
Power generation equipment control. topic
Posted by N.V.Q on 4 August, 2014 - 8:26 pm
Mark VIe control system
Mark VI steam turbine and generator control system
Communications systems and equipment. topic
Posted by Vinay on 4 August, 2014 - 8:17 am
Interfacing of a Transmitter directly to a PC
To be able to display a process value directly in a PC without using PC based SCADA system
Information resources, documentation. topic
Posted by Rushi Shroff on 3 August, 2014 - 10:46 am
Re: Choice of a Embedded Processor: DSP or Micro controller
Choice of a Embeddded Processor : DSP or Micro controller for Industrial Automation System
Power generation equipment control. topic
Posted by AR1969 on 3 August, 2014 - 6:42 am
DLN-1 Lean lean & extended lean lean mode of operation
What is the Maintenance factor (MF) for lean lean mode of operation, GE specifies a MF of 10 for Extended lean lean (high load) but does not specify the MF for lean lean mode (part load).
Power generation equipment control. topic
Posted by Ram on 2 August, 2014 - 6:06 am
Power factor compensation
How does reactive power compensation work?
Local and wide area networking in factory automation. topic
Posted by Plutonius on 1 August, 2014 - 9:08 pm
RS485 Issues - Modbus Temperature Controller to Ethernet
I am currently have a bit of an issue connecting to a Love 2600 temperature controller via RS485 full duplex with a Grid Connect NET485 Modbus RTU to TCP ethernet bridge.
Engineering and workplace issues. topic
Posted by Lc1 on 1 August, 2014 - 11:38 am
2 Wire Loop Powered Transmitter
Powering a 2 wire loop powered transmitter
Application Questions and Problems topic
Posted by Ken on 1 August, 2014 - 10:19 am
Controling an 8Kw electric heater
Bought old never used 8Kw ceiling mount electric heater, trying to figure wiring.
Power generation equipment control. topic
Posted by humble3 on 1 August, 2014 - 6:45 am
Heavy Mist/oil leaking from GE frame 9 mist Eliminator
Our mist eliminator is bringing out heavy mist which then condensate back to oil - causing serious oil shortage
PLCs and related questions. topic
Posted by Donovan on 1 August, 2014 - 3:15 am
Send And Recieve data between To S7-1200 Plc's
Need Help on how to transfer data between two S7-1200 Plc's
Power generation equipment control. topic
Posted by sreekanth on 1 August, 2014 - 12:55 am
GT unit was tripped from the HVAC short circuit
The GT frame 6b and the control system is MARK VI TMR unit was tripped from the HVAC short circuit.
PLCs and related questions. topic
Posted by Curt Wuollet on 31 July, 2014 - 4:33 pm
Need a siemens expert
Can I replace a toasted analog module on a S7-224 without having the program?
Communications systems and equipment. topic
Posted by vasudevan on 31 July, 2014 - 6:22 am
Read/Write serial port using php
Read/Write from windows serial port using php
Engineering and workplace issues. topic
Posted by amanemisa on 31 July, 2014 - 4:35 am
Orifice Tapping Point
Orifice tapping point for additional DP flow transmitter
Power generation equipment control. topic
Posted by any author on 31 July, 2014 - 3:40 am
Surge protection trip for V64.3A model Ansaldo make Gas Turbine
Gas Turbine power station has tripped on surge protection many times due to grid frequencies variation from 50Hz to 49.2Hz.
Engineering and workplace issues. topic
Posted by raynvd on 30 July, 2014 - 9:03 am
VFD Pump Control
Is VFD pump control faster than pneumatic valve control
Engineering and workplace issues. topic
Posted by Anil Bathra on 30 July, 2014 - 3:49 am
Control Valve Questions
fail safe position of control valve
Programming languages. topic
Posted by Eric on 29 July, 2014 - 3:50 pm
KOYO vs ADC memory type
KOYO and ADC - what do they stand for?
PLCs and related questions. topic
Posted by Chris IWO on 29 July, 2014 - 2:35 am
Genius Bus
Lost of Genius Bus LAN
Continuous process industries, DCS questions. topic
Posted by song on 29 July, 2014 - 1:25 am
Bypass Valve Fail Position
What is the moist suitable failure position for turbine bypass valve?
Motion control, servos, steppers, etc. topic
Posted by raph_rf on 29 July, 2014 - 12:04 am
New to the motion world
Hello I have a new project with 11 axes of motion (Servos) and need advice on one of three options.
Power generation equipment control. topic
Posted by N.V.Q on 28 July, 2014 - 10:43 pm
Mark VIe logic block
Time_Sec block in Mark VIe system.
Information resources, documentation. topic
Posted by Asko on 28 July, 2014 - 4:09 pm
Null current shift in hydraulic proportional actuator
Impact of null current shift in proportional electric actuator
Continuous process industries, DCS questions. topic
Posted by AS on 28 July, 2014 - 4:01 am
Piezo and Torquemotor based Valve positioners
Properties of Torquemotor and piezo based valve positioner. Function of Spool Valve in Valve Positioners.
Power generation equipment control. topic
Posted by masoud on 28 July, 2014 - 2:36 am
Standby AC power supply for power plant
Which is a more reliable AC backup power supply UPS or Inverter?
Engineering and workplace issues. topic
Posted by Sara khaan on 28 July, 2014 - 2:29 am
LQR Command and failed stabilization
Getting errors when using dlqr command for my state space equation
Power generation equipment control. topic
Posted by Meganathan S on 28 July, 2014 - 2:14 am
Re: 9fa Gas Compartment Vent Fan 88vl
Improper ventilation in gas compartment
Power generation equipment control. topic
Posted by Yassar on 27 July, 2014 - 1:53 pm
MARK VIe Thermocouples
Questions about thermocouples and MARK VIe
Sensor technologies. topic
Posted by shep on 25 July, 2014 - 8:52 pm
Re-calibrating Rosemount Transmitters
Re-calibrating Rosemount Transmitters after power is removed?
Computers in manufacturing; also hardware discussion. topic
Posted by Russ Miller on 25 July, 2014 - 3:59 pm
3A Convenience Receptacle
3A Convenience receptacle requirement.
Power generation equipment control. topic
Posted by Yassar on 25 July, 2014 - 2:55 am
Lube oil level
Lube oil level dropping as temperature increases
Communications systems and equipment. topic
Posted by Raymond Laib on 24 July, 2014 - 9:55 pm
Displaying PF525 VFD drive faults via Stratix
PF525 VFD drive faults via Stratix 8000 to be displayed on a HMI.
Engineering and workplace issues. topic
Posted by GE on 24 July, 2014 - 8:55 am
Using Synthetic Oil in Gas Generator
Why use synthetic oil in GE LM 2500 gas turbine?
Power generation equipment control. topic
Posted by ABDI on 24 July, 2014 - 1:56 am
IGV for DLN Type Without IBH
If a turbine has DLN (Dry Low NOx) combustors, IGV exhaust temperature control is not operator-selectable. Is it always on?
PLCs and related questions. topic
Posted by Daniel on 23 July, 2014 - 3:00 pm
FFL instruction weird behaviour
FFL instruction sometimes doesn't load data into FIFO
Information resources, documentation. topic
Posted by Daniel on 23 July, 2014 - 1:01 pm
ATEX certified 24VDC fan
Looking for a supplier for a small 24VDC (or 230VAC) Ex-d or Ex-e fan
Motion control, servos, steppers, etc. topic
Posted by yazooka on 23 July, 2014 - 8:47 am
VFD and nominal RPM of motor
Nominal RPM on motor plate lower than can be set in VFD
Power generation equipment control. topic
Posted by Arianna Mambrini on 23 July, 2014 - 4:30 am
Problems with air intake and dirty turbine
Air intake filters clean but turbine dirty
Sensor technologies. topic
Posted by christine on 23 July, 2014 - 4:30 am
1oo2 voting for temperature transmitter
1oo2 voting for temperature transmitter
Power generation equipment control. topic
Posted by Shaheed on 23 July, 2014 - 3:22 am
Selection of VCB as per short circuit current
Do we need to replace the VCB of a machine with higher short circuit rating if more machines add parallel at same bus bar.
Local and wide area networking in factory automation. topic
Posted by michael on 22 July, 2014 - 3:04 am
Communication Error with MODBUS DCS RTU
MODBUS over ethernet connection between yokogawa DCS and abb rtu anr96 has a communication error after several minutes.

Power generation equipment control. topic
Posted by fluidflow on 22 July, 2014 - 1:04 am
Generator and Capacitor Bank
Totally stumped by the recent brawl over utility of capacitor bank in power generation.
Communications systems and equipment. topic
Posted by Suraj on 21 July, 2014 - 11:00 pm
S7-1500 CM541 Serial RS232 ASCII help
Point to point Serial RS232 ASCII communication in TIAV13
Software, including programming, OS issues, etc. topic
Posted by viks on 21 July, 2014 - 2:28 am
Modbus RTU utilities
help needed in finding the software facilitating reading data from the sensors via RS485 into industrial computer and providing it for a SCADA application.
PLCs and related questions. topic
Posted by majji raju on 21 July, 2014 - 1:27 am
GE Fanuc rx7i PLC Not Going into Run Mode
PLC goes into halt mode after detecting 'CONTROLLER CPU HARDWARE FAILURE' fault
Continuous process industries, DCS questions. topic
Posted by Rupert on 20 July, 2014 - 2:25 pm
Simple model-based control example
MPC example
Power generation equipment control. topic
Posted by moiz on 20 July, 2014 - 8:52 am
Gas Turbine Negative Lean Lean Mode
Want to know about negative lean lean mode of gas turbine
Engineering and workplace issues. topic
Posted by Josh on 19 July, 2014 - 11:45 pm
Flange Adaptor and Isolation for Press Transmitter
Mismatching flange between tank nozzle and transmitter
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