Setra Systems 140CP, Руководство пользователя

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“c3” is the “stability” character. When a “ “ (space) is transmitted, the reading is not
stable. When an “S” is transmitted, the reading is stable. This corresponds to the “ok”
symbol on the display.
The string format output is always transmitted with a carriage return and line feed.
The following are some examples of string format output:
“_ _ _12.3_GPS” means that the GROSS weight is 12.3 lbs stable.
“_10000._C_” means 10000 pcs, and the reading is not stable.
“_ _ _84.6_TO_” means that the tare weight is 84.6 ounces.
“UNABLE” means that the scale cannot perform your request.
If an I.D. number has been entered, it will be transmitted during any print sequence.
For example:
“ID# 25 CHARACTER Alphanumeric”
“+123.45_g_ _ _NET”
Immediate and Continuous Print Modes
Two types of output modes are available on Setra scales - immediate and continuous
print modes.
The immediate print mode is enabled by transmitting a "P" over the RS-232 or by
pressing
print on the keypad when "string format" is selected. In this mode, the
contents of the display are transmitted. The print command may follow another
command or series of commands. For example, if ".TP" was transmitted; or the
sequence,
./rcl , tare , print was pressed, the scale would send the contents of the tare
register. Using this mode, a computer can read data from the scale only when
specifically requested.
If the scale is not in "string format" the immediate print mode can be activated only
from a computer. This is done by transmitting the "#" symbol. Within one second of
receiving the "#" command the scale will transmit all displayed information, as well as
information stored in the ID registers.
For continuous data output, use the continuous print mode to print the contents of the
display every time a new reading or message is available. The rate at which data is
updated is programmable from once every .2 seconds on up. This mode is useful if
the computer/scale software interface can run as a background process. For ex-
ample, on a personal computer, a machine language routine can be written to input
data from the scale and place it in a memory location. This memory location can be
accessed by a BASIC program only when the data is required.
The continuous data mode is initiated by sending ".2P" over the RS-232, or by
pressing
./rcl , 2 then print on the keyboard. This mode is cancelled by sending "— P"
or pressing
—
then
print
on the scale’s keypad. Values greater than .2 can be used
for longer intervals between data transmittals.