ScienTECH SA Analytical SA 210 - Balance Control Commands (Type 1); Bi-Directional Communication Control; USB Port Information

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8 Press the SEND button until the desired
continuous send mode is displayed.
9 Press the MODE/UNITS button. Send when Stable SS ON or SS OFF is
displayed
10 Press the SEND button until the desired
Send when stable mode is displayed.
11 Press the MODE/UNITS button. Display blinking mode BL ON or BL OFF is
displayed
12 Press the SEND button until the desired
blinking mode is displayed.
13 Press RANGE/FUNCTION button. SAVED is displayed briefly and the scale returns
to normal weighing mode.
User Action Balance Response
Using Bi-Directional Communications:
Scientech electronic balances, interfaced to a computer via the RS-232 port, can be controlled by a computer
program. Any programming language with access to the RS-232 interface can be used to program this control.
The balance expects ASCII character instruction strings and responds with ASCII character data strings. All
characters with an ASCII value less than the space character (decimal 32 of hex 20), are ignored by the balanc-
es.
USB:
The RS-232 and USB ports share the same internal communication port. All commands described by the
RS-232 are valid for the USB as well. The balance utilizes a CP-2102 serial bridge architecture. The USB con-
nector is a type B located on the rear panel of the balance.
Type 1 Commands – Balance Control Functions:
The following commands can be sent to the balance in any combination of upper and lower case characters.
No action is taken by the balance until it receives a carriage return indicating the end of the command string.
Type all commands as shown .
↵ = Carriage return
Command Response Purpose
CLEAR↵
OK Balance in normal mode Exit any special weighing mode immediately,
clears statistics . Does not tare balance.
HI_RANGE↵
LO_RANGE↵
AUTO_RANGE↵
Hi Range Selected
Lo Range Selected
Auto Range Selected
Places dual range balances in the desired
range. Command is ignored on single range
balances
GRAMS↵
OK grams selected
1
Places balance in Grams.
CARATS↵
OK carats selected
1
Places balance in Carats.
DWT↵
OK pennyweight selected
1
Places balance in pennyweight.