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Control.com member...Member Information and Posts by tallgirl
from the Annoying Exceptions department...Negative Acknowledge and Bad Karma
How do you feel about security exceptions not being, you know, informative?
> I would not create your own code ... since Digi sells generic Modbus bridging, we occasionally...
from the Forum department...Low cost modbus meters
Low cost power meter-data acquisition.
It's easier, and potentially more accurate if you don't care about Real versus Apparent power. ...
from the 100A breakers dropout when producing 1kW department...High Current No power on Generator Engagement
When we parallel to the grid after 2 minutes or so the 100 A breakers drop out. We have only been outputting around 1 ~4 kW
Are you sure the generator is in phase, and locked to stay in phase, with the grid? And what...
from the Forum department...After Software, What's Next?
Reliable hardware is solved but not software. If we are able to produce a hardware solution to most control problems, who will be its champion?
First, there are, and have been for decades, microcontrollers that can present summed values in...
from the Forum department...modbus pulse counter
modbus pulse counter - estimate the cumulative water/gas used so far.
For someone just starting out with Modbus, I'd suggest the pulse counter. Current loop is loads of...
from the Control department...How to connect a Modbus slave device to PC when its address is unknown
Modbus RS485 to PC
FTDI makes some nice wire-end terminated USB to RS485 adapters. They are about $30 in quantity 1...
from the Things I shouldn't do alone department...Protocol extensions for multiple Modbus/RTU Masters
Looking for any previously defined extensions to Modbus/RTU which permit multiple bus masters
> You have some interesting ideas and I can see applications where they might be very useful. ...
from the Forum department...Crc errors using jamod with Rxtx library
crc errors using modbus application with Rxtx library
Both RxTx and Jamod, as downloaded from the Interwebs have issues. That said, Jamod can be made...
from the Forum department...RS-485 to USB adapter
MODBUS RS485 PC adapter
The other approach, if you're worried about power, would be the use a USB to RS485 adapter (FTDI...
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PL/1, "the fatal disease", belongs more to the problem set than to the
-- E. W. Dijkstra