GHM DeltaOHM HD51.3D Series, Operating Manual

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HD51.3D…
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V2.0
loadable from Delta OHM website, should be installed in the PC (see the guide to USB drivers
installation in the
Documentation section of the software package).
The instrument is powered directly from the USB port of the PC.
5.3 S
ERIAL OUTPUT PROTOCOL
Unless otherwise requested, at the first power up the instrument main serial output starts in
configuration mode and waits to receive the commands for setting the operating parameters
(see chapter 6) or the connection with the
HD52.3D-S application software.
In this case, in order to activate an operating protocol (NMEA, MODBUS-RTU or ASCII proprie-
tary) it is necessary to set it with the appropriate serial command (CUMn, see chapter 6) or
with the aid of the
HD52.3D-S application software.
If the instrument is set up to work with an operating protocol, the protocol becomes active 10
seconds after power on (in the first 10 seconds the instrument waits for a possible command
to enter configuration mode, as explained in chapter 6).
The auxiliary RS485 serial output is always in configuration mode.