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APPENDIX B: SERIAL PORT INFORMATION
SERIAL PORT MODES
DEMAND DUPLEX MODE
The Demand Duplex Mode provides a two way serial transmission mode. In this mode, the output
information is transmitted on demand; either by pressing the PRINT key on the indicator’s front panel
or upon receiving a recognized command from a host device (i.e. computer).
NOTE: Ensure that your cabling contains the proper handshaking.
CONTINUOUS DUPLEX MODE
The Continuous Duplex Mode provides a two-way serial transmission mode. In this mode, the output
information is transmitted continuously making it a popular choice for remote displays and other
remote devices requiring a constant data stream. The transmission automatically occurs at the end of
each display update. The indicator will react upon receiving a recognized command from a host
device.
RECOGNIZED HOST COMMANDS (applies to demand duplex mode only)
“P” - This command is sent to the indicator to print the indicated display. The indicator will not
respond if the scale is in motion, positive overload or negative overload.
“Z” - This command is sent to the indicator to zero the scale. The indicator will not
respond if the
scale is in motion, positive overload or negative overload. The indicator will also not respond if it
is in net mode or outside the zero range specified in F4 of the Setup Menu.
“T” - This command is sent to the indicator to tare the scale. The indicator will not
respond if the
scale is in motion, positive overload or negative overload. The indicator will also not respond if it
displaying a negative gross value.
“G” - This command is sent to the indicator to switch to gross mode. The indicator will not
respond if
the scale is in motion, positive overload or negative overload.
“N” - This command is sent to the indicator to switch to net mode. The indicator will not
respond if the
scale is in motion, positive overload or negative overload. The indicator will also not respond if
a tare has yet to be established.
“C” - This command is sent to the indicator to toggle among the configured units of measure.
AUTO PRINT MODE
The Auto Print Mode provides a one-time serial transmission once a non-zero, stable condition is
achieved
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