Manual – Starflow Ultrasonic Doppler Instrument
Model 6526
Unidata Manual - 6526 Starflow User Manual Issue 17 01 2020.docx
Page 45
The
Comms Window
is frequently useful for diagnosing modem problems and logger baud rate
mismatches.
Data sent from the PC to the logger is shown in green, while data sent from the logger to the PC is
shown in blue. The above screenshot shows communications that result from a typical test display.
If no communication was taking place, you’d just expect to see regular star (asterisk ‘*’) prompts
from the logger.
The top of the window lets you control the serial port, and provides some status indicators:
Connect/Disconnect
: Click to connect/disconnect to/from the serial port.
Baud rate
:
The baud rate to use. If no star prompts are detected, the software will automatically cycle through
all the baud rates until a star prompt is detected.
DTR
:
Controls the Data Terminal Ready signal. Modems require this signal to be on (ticked) to enable
dialling out to other modems.
RTS
:
Controls the Request To Send signal. Unidata data loggers require this signal to be on (ticked) to
wake up for communication.
DSR
:
Indicates the current state of the Data Set Ready signal. The DSR state usually reflects the DTR
signal.
CTS
:
Indicates the current state of the Clear To Send signal. The CTS state usually reflects the RTS
signal.
CD
:
Indicates the current state of the Carrier Detect signal. Modems turn this signal on when they are
connected to another modem.
11.2
Upgrade Firmware
The
Upgrade Firmware
function allows you to upgrade the internal firmware of
most Unidata data loggers.
Click the
Query Logger
button to have the software determine what type of
logger is currently connected, and what version of firmware it is currently running.