Chesapeake/BP Amocams RTU
Chesapeake/BP Amocams RTU (Bristol Babcock 3340) configuration documentation and applications
By Kendall Augustine on 22 May, 2015 - 5:07 pm
You will Need a Software call HyperAccess to gain control of the 3340 RTU. This software must be...
Understanding Blower Ratings
When a blower is rated for ____ CFM @ ___ SP @ ____ RPM, where is the static pressure measured?
By Steve Myres on 21 May, 2015 - 5:14 pm
Generally speaking, your CFM will be proportional to the rpm, for a given system curve (don't know...
By Steve Myres on 20 May, 2015 - 10:45 pm
The spec refers to the difference between the inlet and outlet pressure, the rise that the fan is...
Want to convert flue velocity to NTP
P&ID Balloon for AutoDialer
Water Line Pressure Transmitter Elevation
what if transmitter is installed above the tapping point?. Is it possible to solve this problem with offset elevation setting?
By Roy Matson on 8 May, 2015 - 4:50 pm
>However, if the process operating pressure is high enough >that the impulse line head...
Looking for a Scheduling Application with MODBUS Addressing
Scheduling/ Signalling Application That will work with MODBUS (or with discrete I/O)
By Carlos Hernandez on 8 May, 2015 - 6:56 am
I would recommend you an affordable and user-friendly cloud-based solution for MODBUS monitoring...
By ICP DAS on 30 April, 2015 - 3:44 pm
We have a controller with the ability to schedule tasks. It is web browser (Chrome) configurable. ...
Unable to Read Meters (MODBUS RTU) on PCVUE 8.10
Unable to read Meters (MODBUS RTU) on PCVUE 8.10. It was working fine before reinstalling the PCVUE 8.10
Control Diagram Design and Testing
What software should I use to simulate a control diagram to see the performance?
HINET Modbus DDE SERVER 2014
HINET ModBus DDE SERVER 2014,
By Heru Iqbal on 5 May, 2015 - 12:32 pm
After 459 days, finally there is one member who response to this thread. Thank you very much.. ...
Basic difference between Zone-2 and Zone-1 equipment
Exd/Exe equipment for Zone-2 and Zone-1
By S,VENKATARAMAN on 4 May, 2015 - 3:42 am
Hello I am S VENKATARAMAN AEE(E) from ONGC and it is 5 years since you posted your query. By...
basic differences between contactor and relay?
By guy reece on 25 April, 2015 - 7:54 am
in all practical terms a relay and contactor perform the same basic role - switching current to a...
Interfacing GSM module with matlab
My aim is to send SMS using GSM module by interfacing with matlab
By Sam on 25 April, 2015 - 4:11 am
were you able to perform it? if yes, please help me in interfacing the gsm module with matlab....
Wiring a Servo Motor LT to terminate in DCS but also connected to local indicator.
4-20ma Read to 2 AI Devices
Posted by John Nguyen on 20 April, 2015 - 5:13 pm
Split 4-20mA signal of a sensor to 2 AI device
By Roy Matson on 21 April, 2015 - 2:36 pm
> Paralleling the 4-20mA will not work. Perhaps I should have been a bit clearer. The...
By Roy Matson on 20 April, 2015 - 7:17 pm
You have several options. If the analog inputs are isolated, just wire in series. If they are not...
Combining Wires in Conduit
What guidelines or resource do you use to decide what cables are OK to combine in a conduit or cable tray?
By Roy Matson on 17 April, 2015 - 5:26 pm
I think NEC section 16 is pretty clear, 16-212 in particular. I can't find it at the moment, but...
By Fel Flores on 17 April, 2015 - 1:57 am
can you tell me the particular part of the code that states you can combine a low voltage and...
Low Air Flow Confirmation
Looking for sensor to confirm low air flows
By Roy Matson on 17 April, 2015 - 6:37 pm
Paul, I edited your post to get at the salient points You indicated the pressure switches may...
Understanding speed control of BLDC motors that are NOT wired for PWM.
By Curt Wuollet on 14 April, 2015 - 12:12 am
You can certainly do PWM with a 2 wire load. Considering that PWM varies the average voltage, at...
Difference between a DCS and a PLC
What are the key points of differences between a PLC and a DCS
By rvsaradhi on 11 April, 2015 - 10:11 am
Hi , Function of DCS is for data acquisition/trending, process control loops group, history of...
By pvbrowser on 11 April, 2015 - 3:20 am
Forget about all the buzzwords. The terms PLC or DCS have mainly historical roots. But today...
Calculate the Speed of Conveyor.
Calculating the speed of a conveyor belt, using Allan Bradley Powerflex 40. Converting Hz to km/h.
By Chapman Industries on 9 April, 2015 - 3:00 pm
Interesting thread! Check out www.hydraulicandpneumatics.com for hydraulic and pneumatic products....
Instrument Loop Voltage Too Low
Instrumentation loop power control issue.
Activating a Solenoid 2500 using a 24 VDC Solenoid
Posted by SAMMY MARTINEZ on 4 April, 2015 - 10:18 am
need to activate solenoid 2500' away. What is required a 24vdc solenoid or a 120vac solenoid?
By Curt Wuollet on 6 April, 2015 - 11:22 pm
If it's all indoors and on the same electrical system, I'd maybe run the wire. If it's outdoors,...
By Roy Matson on 6 April, 2015 - 4:34 pm
> need to activate solenoid 2500' away. would a 24vdc solenoid work or would i need a 120vac...
By Bob Peterson on 5 April, 2015 - 10:52 am
crunch the numbers and see what the voltage drop is. personally, I would be looking for a better...
By Steve Myres on 5 April, 2015 - 2:41 am
I think you dropped a zero or something there. You certainly don't need a wrist-sized conductor to...
Effect of the Weights in an LQR/LQG Problem
Given a performance index (PInd), and a fixed weight (Q) on the states, how can I design an LQG controller such that the input is less noisy and yet PInd is minimal?
Rotor Angle Measurement Using Proximity Sensor
Need help understanding how to measure rotor angle using single inductive proximity sensor and speed signal which is also measured using proximity sensor.
Woodward 4024 Actuator Model 8256-060 Testing/Repair
Obsolete Woodward 4024 Actuator Model 8256-060 Testing/Repair
By Tim Hinde on 1 April, 2015 - 11:30 pm
Have you checked the resistance of the actuator? It is a very low resistance typically 1-2 ohms. If...
Difference between NPN/PNP Sensors
Alternative for LEUZE BCL300I Scanner
Alternative for Leuze make barcode scanners
Open Source Web Based SCADA
Looking for a reliable open source web based SCADA software.
Wind-Up Applications Using Brushless DC Motor
Question regarding the control of a wind-up reel on a label applicator with no sensors other than those contained in the motor.
MODBUS Comunication with RS485 on ST-200
Communication between PLC and PC via Modbus, using a network interface to transport the rs485 via TCP/IP.