Recent content by xtal_001

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    Panel Vent and Fan Location Advice Please

    Thanks! I was thinking of a small computer style filter (really a fine mesh head on by magnets so easily removed and cleaned). In 30 years, I have never used a fan .... this is the largest panel I have ever built and one of the few with a PLC. I always overbuild my panels. If they need a 5...
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    Panel Vent and Fan Location Advice Please

    Hey! I have two panels about ready to ship. I calculated the thermo load when sizing the enclosure but I am worried they are both still getting a bit warmer then I like. One has a PLC, touch panel and such in it ... the other has 12 contactors in it. One panel measures 36 x 36 x 8...
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    Computer Does Not See Modem When Using Ethernet Switch

    Back story ... I build control panels. My customer wants one that can be controlled via the internet. So, I have a PLC with an Ethernet port, a touch panel with an Ethernet port and a cellular modem with an Ethernet port. I also bought a "dumb" Ethernet switch. The modem, PLC and touch panel...
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    Switch or Router?

    Question ... along the same lines but .... I was just talking with a friend who said I need to have a static IP for both the PLC and the HMI panel. Is this true? My understanding was that I needed a Static IP assigned to the modem SIM card by Verizon. It was originally explained to me this...
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    Switch or Router?

    Awesome! Thanks guys for the advice. This is an environmental clean up site. There are 8 pumps running 24/7. To meet government regulations, they need to record the total gallons pumped every 24 hours. They had a company install everything (wells, pumps, communications, ... ) but it...
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    Switch or Router?

    Hey! After 30 years of panel building, this is a new one for me. A client I have had since the 90's asked me to build a panel with remote access via the internet. He has no land line to the site. I did my homework and quoted it last year. I got the job a few weeks ago and have begun...
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    Door Opener on Reefer Container

    Can you supply any more information? You are not looking at the motor but rather a variable resistor that sends a feedback signal to the a controller telling what position the vent is in. Is there something else on this shaft other then this variable resistor and the worm gear? Mike
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    Cannot Find a 12 VDC Conductivity Switch

    Just FYI ... this gives a good picture of the variety of panels I build. This is a very very simple panel ... probably 10 components. The next one up is the monitoring and control of several large pumps via the internet. This includes daily e-mails of flow totals and any problems with the...
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    Cannot Find a 12 VDC Conductivity Switch

    Thanks guys! I did in fact find a conductivity switch that uses 12 volts ... but the manufacture is in Italy and it is only distributed through one vendor. I try to never use parts that are single source ... if it dies in a few years, I don't want the customer to be stuck. So, I will go...
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    Cannot Find a 12 VDC Conductivity Switch

    I have been building control panels for 30 years. One of my customers wants to power a pump with flow control from a solar array. He had decided on the supply (solar panel, controller, deep cycle battery, ..) which gives me 12 VDC to work with. The controls are straight forward. The problem I...
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    PLC with Remote Access

    Thanks guys! Right now the system there is not working, and I am not expected to use any of it. So I am wide open to what equipment I want to use. I will definitely look into everything that was suggested. I just picked Automation Direct because it is easily available, and the software is...
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    PLC with Remote Access

    I have a client who wants to remotely log into a site (as you would a web page), turn 12 pumps on and off, look at two flow meter outputs (meters have 4-20 mA outputs), have the PLC or HMI panel send him an e-mail if the flow goes high or low. Plus he wants the unit to totalize the flow over the...
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