Latest threads in ⧑ Industrial Control Groupshow only best voted threads
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PC-based PID Temp control
I've searched the web extensively and have learned a lot about PID control in general. However, I haven't been able to find specific details about a couple of key aspects of my particular app -...
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20 years ago
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Is this PLC equipment valuable?
Hi, I have several PLCs and related items that I would like to sell. Does anyone know the approximate value? I placed photos and models on a webpage. the items are located in Louisville, Kentucky if...
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20 years ago
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Re: Recommendations for a satellite modem
On you will found a GSM modem. With beginning of Sep. 2003 you can get it as a triband GSM 900 / 1800 /1900. Best regards Meff GM862 Telit GSM module GM-862
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20 years ago
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Wireless networks in process plants
The latest Control Engineering has an article about the use of wireless communication in process control. The latest Intech included an advertising supplement with articles (from vendors) about...
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20 years ago
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Designing an adaptive LQR controller...
I know that it's hard to solve symbolically AREs or in general quadratic matrix equations, some considerations on the symbolic solution of matrix equation AX^2+BX+C=0 can be found in Higham & Kim,...
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20 years ago
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Re: LQG control of flexible structure
This problem is frequent if you use 'care' command of Matlab with great matrices with hamiltonian eigenvalues near imaginary axis because I guess it uses matrix sign method to solve continuous-time...
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20 years ago
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Parameter identification
Hi All, I am working on a simple dynamic system with some unknown parameters (i.e. moment of inertia etc). The system is controlled by an closed LQR. I read papers about Kalman filter for state...
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20 years ago
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Re: Chill roll cleaning systems
I don't have a solution, but will suggest that you be more careful in asking the question. Propylene monomer is a gas at room temperture since it boils at minus 49 C. Amide monomer does not have a...
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20 years ago
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Now a question on USB 2.0
Thanks, S. Bettesworth, for your reply. Now I've a 2nd question I haven't been able to get an answer to yet: does anyone know what the maximum speed is for USB 2.0? For USB, it's about 12 million bps....
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20 years ago
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Question on Firewire as applied to laptop
I'm thinking about buying a laptop PC that includes a Firewire port. I'm wondering how useful a laptop with a Firewire port would be in the present and future world of controls engineering. (This PC...
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20 years ago
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Bently-Nevada machine protection PLC
Hello, I am looking for references regarding the subject. Has anybody encountered problems when using multicore cables without individual shield (just overall shield) to carry vibration and RTD...
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20 years ago
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Honeywell PHD Installation?..
Hi, I am having nothing but problems trying to get PHD R200 installed. Honeywell doesnt provide any documents for me so I am somewhat lost on the procedure to get this thing running. I have Oracle 8i...
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20 years ago
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Re: Mitsubishi Q PLC &HMI/SCADA
Hi, I have been using a program called E-View. Its from Beijer but avaliable from Mitsubishi. I have found it very easy to use and configure. It comes with comms drivers for all the mitsu range of...
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20 years ago
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Control system state-of-the-art
Hi- I've got a newbie question about the current state of control system technology. I'm trying to find out what kinds of applications are easy for humans to perform, but require too much flexibility,...
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20 years ago
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DeviceNet Gateway
Hi, I am a student working on a final year project which is a DeviceNet/Ethernet gateway. I am using a Mitsubishi M-16C micro-controller. A previous student has interfaced a Ethernet NIC card to the...
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20 years ago
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