Ken Moore
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Posts posted by Ken Moore
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Not much help, but glad it worked out for you. -
Just tried to read K memory with my Dos software, does not work. However you can read it with a windows package. Download the demo package here, you can read the program with it. http://www.fast-soft.com/download.php?view.295 -
I don't remember the exact steps, but in version 7.1 here is kind of the steps. You want to start Tisoft and open the program off line. Use the space bar to toggle the function key menu. I believe F8 can be toggled to chart. Once you are in chart mode, use the F3 key to build a chart. I believe the default format is int16, so you will be fine in that regard, type in the K's that you want and hit F1 to escape, the values should be displayed. -
What software are you using? You should be able to see the value, how you do that will depend on the software package. -
If you simply want to ramp up an output, hold at a certain value and then ramp down, then you do not need a PID loop. Do you have any feedback from the field? Will the output vary based on some process variable? Do you know the required rate of the ramps? The more information you can give us, the better answer you may receive. Ken -
My first question is why the basic method? What is going to be sending the data? If we know the data source, there might be a better method. -
I am not a windoze fan, but if everything can be connected via ethernet, have you considered using an OPC server to pass the data around. Red Lion might have an industrial protocol converter, worth checking. -
Most of the new chillers and cooling towers that I have dealt with "speak" BACNET so any HMI or SCADA that speaks that protocol should work fine. BACNET=Building Automation and Control Network. -
Thanks for the clarification, I thought BMS was Burner Management System, like those found on boilers and such. -
I tend to think of these as cause and effect matrix's. If this happens this is the effect kind of thing. If high pressure, then this closes that starts etc.... -
I have some very long distance E-stops and we ran 12 ga. wire, never had a problem . A little math will make you feel better about the whole thing. I would pull 12 ga. in you situation. the price difference is negligible. -
Make a flow chart first. organize your thoughts. Have branching logic. If yes then x, if no then y etc... -
Recently (last week) demo'd a large TI 565 system, 10 remote bases full of 505 series I/O cards, many 32 point dc input and out put cards, many 8-channel analog in and outs. We are looking to off load all to one buyer. Still working on the change over to a DCS, so if you are interested, let me know and I can supply a complete inventory. One pulse input and one MODNIM also. All of these items were working when "pulled". There is no warranty, and no refunds. We will consider trading for AB PLC equipment and or drives. -
We have tried many resistor sizes, no joy. different pulse widths, amplitudes, Filters etc..... Ran a new temporary wire from control room to device. Works. I guess current conduit has a mixture of wires, maybe 120? Running a new dedicated conduit, should fix my problem. One of our techs put a scope on the wires, noise out the ying yang. It worked with old metering uint (Darant) but not with new I/O cards. Ken -
Trying to hook up a magmeter to a DeltaV DCS, meter is approx. 200 feet from I/O card. With a Fluke I can generate a pulse and read it in the DCS, I can generate a pulse with the meter and read it with the fluke in the Control room, but not with the DCS. So wiring is okay. Tried moving terminals to a known good working input, same results. I'm pulling my hair out, anyone got a hint? -
I have bought cables from here: http://www.theautomationstore.com/index.php?option=com_virtuemart&page=shop.browse&category_id=23&Itemid=2 and have had good results. Much cheaper than AB -
Just curious, why would you need to transfer an image from one PLC to another? -
It's a bad design, I would never install a system like this, so the challenge does not really grab my interest. -
Well, not a PID expert, but you should be able to slow the valve opening by changing the tuning parameters of the PID. Can you post the current tuning? What is wrong with the current situation, what is happening to your process? What are you trying to stop from happening? The more information shared, the better the answers might be. -
Need more information. What you said: I bought a car, and I want to know if I can drive it. See? -
You could always install additional overload protection on each "branch". I like the discrete input option, that way you could have at least two people verify the drive settings, and then manage the change with a switch and sign off sheet. -
Going rates in my area is 100-120 USD per hour plus expenses. -
Have two on me. Have a good one. -
You have the parameters on the SCP switched. The input min should be 4 and the input min should be 20, the scaled min and max should match your output card. I believe version two will work as expected.
Sanity Check Please
in General Topics - The Lounge
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