Workaround devices that responds with registers as *both* master & slave, but fail utterly when we try to talk to the "fake" device.
Workaround devices that responds with registers as *both* master & slave,
but fail utterly when we try to talk to the "fake" device.

jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase