Latest threads in ⧑ Industrial Control Groupshow only best voted threads
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STEP7 -> VAT hanging problem
Hi, has anybody faced the observation variables problem under VAT ? I have 2 PLC's connected over Ethernet, first PLC I can observe without hanging, second not ...after every hang I have to enforce...
6
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18 years ago
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6 | |
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SCADA with wireless transceivers....
Our supervisor was fascinated by the new Wireless transceivers and now we have two FreeWave transceivers with an assumption of implying peer-to-peer messaging over DF1. We are using two ControlLogix...
7
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18 years ago
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VIPA's PLC
Hi, has anybody tested PLC of VIPA company ? how about stability ...?
1
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18 years ago
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Description of H&B Contronic-2 & 3 components
Hello there! This is Ed. Is there anyone that can help me with finding the descriptions of several Hartman & Braun Contronic-2 & 3 components? So far not much found, searched till I dropped. (For...
1
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18 years ago
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How to get into embedded systems + PLC books?
Hello. I'm a software developer, but higher up the 'rung', doing mostly applications that work directly with commercial databases. I want to get into embedded systems programming, and I'm wondering...
6
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18 years ago
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6 | |
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Level measuring
Hello list, we are looking for a solution for measuring the amount of potatoes in a bin filled with water (analog measuring). All potatoes are below the water surface. The water level in the bin will...
12
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18 years ago
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12 | |
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PLC real value calculations
Hi, We're looking for a concise reference on how real value calcs such as arithmetic operations and integration are programmed on the AB PLC5. We've been through google and the websites, too much...
9
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18 years ago
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9 | |
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How do you control pump speed from output pressure
We have a community water scheme consisting of a three phase submersible pump which tranfers water into members storage tanks over tanks have ball type float valves which control the inflow to the...
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18 years ago
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Anyone familiar with Mitsubishi FX PLC
I find myself in a predicament with which I could really use some help. Years ago I installed an elevator with a variable-frequency drive managed by a Mitsubishi FX series PLC which I programmed with...
14
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18 years ago
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14 | |
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Stability of a Matrix
Suppose I have an n x n matrix A = [ 0 1 0 ... 0 ] [ 0 0 1 ... 0 ] [ 0 0 0 ... 0 ] [ ... ... ... ... ... ] [ 0 0 0 0 1 ] [ x_1 x_2 x_3 ... x_n ] i.e., a companion matrix where each of the elements of...
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18 years ago
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Siemens Controls House or SCL Programmer Near Charleston,SC
We need either an independent Siemens SCL programmer or Siemens Integrator in or near Charleston, SC for a medium-size job. We intend to deliver a machine with a program written in LAD and you can...
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18 years ago
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UPDATE: Download FE-Sizer Version 3.0 - Latest Release 3.27
Do you perform, maintain, or review/check orifice calculations for your production plant's orifice flow meters or for process plant instrumentation design engineering for your engineering firm? Then...
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18 years ago
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Citect
Need to store Citect alarms, trends and tag values to SQL Server? Free demo version at , running for a whole week!
1
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18 years ago
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1 | |
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Topics in Process control
Hello All, I am chemical engineer doing my masters in process control. I have plenty of time in college and wish to learn various topics in process control. During my course in process control i have...
8
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18 years ago
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Suitable controller for electrical drive
I want to make a feedback control on an electrical drive on a model car. Unfortunately, the drive and gearbox have a rather large latency, so finding a suitable control function is tricky. Furthermore...
6
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18 years ago
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