Josh,
The price on the Koyo devices is appealing.
But the EPICS driver seems to be for serial communication, not ethernet.
Paul
On Sep 27, 2011, at 9:50 AM, Josh Stein wrote:
> Although not purpose-built, we often use PLCs for simple analog acquisition. At APS the PLC-Direct brand (basically Koyo) is very ubiquitous.
>
>
>
> On 9/27/11 9:38 AM, Paul Nord wrote:
>> I need to monitor the pressure in a gas supply bottle. We expect to need to change gas bottles every few days and we'd like to alert the detector operators in plenty of time.
>>
>> Getting a transducer to produce a voltage is simple enough. I'm a little unclear about the next step: digitizing that voltage and getting that information to our EPICS softIOC. I'd like a simple box that connects to the voltage and also to an ethernet port.
>>
>> There is an Epics driver for the environment monitor Websensor from Esensors Inc. It monitors temperature, humidity, and illumination. The device can also monitor a voltage reading. I presume it would be easy modify the driver to also get the voltage reading.
>>
>>
>> Is there another ethernet-based ADC that you would recommend?
>>
>> There are some nice USB devices. But I don't really want to setup a computer just to monitor one voltage remotely.
>>
>> I found some nice modular systems from Omega and NI. Alas, there are no Epics drivers.
>>
>> Paul
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