Scientech 12000 Series - Manual (Page 16)

16
Bi-Directional RS-232 Command Set:
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. Each command's syntax is described using this
notation; keywords are in upper case; items in [ ] are required; when one item must be chosen from a list, each choice is enclosed in
( ); CR means the carriage return or enter character; LF means the line feed character; and _ indicates a single space character. A
command string or entry is considered to be a keyword (and/or a numeric string) followed by a carriage return. The commands are
listed by type.
• Type 1 commands are balance control functions.
• Type 2 commands are balance input functions.
• Type 3 commands are balance output functions.
• Type 4 commands are clock/calendar functions.
Where a balance response is given, no attempt has been made to show the actual message formats. You should refer to the section on
balance message formats for detailed information. Numbers stored in the registers are classified by the balance software as being
additive, multiplicative, or unflagged. Additive numbers are used by the balance software in addition and subtraction operations.
Multiplicative numbers are used in multiplication and division operations. Unflagged numbers aren't used in any arithmetic functions.
If you try to use an additive number in a function which requires a multiplicative number the balance responds with the register
contents (if applicable) and a ? and the instruction is ignored.
Type 1 Commands – Balance Control Functions:
Command Response Purpose
CLEAR [CR] None Clears the previous command and resets the balance to
normal operating mode. The Tare register is cleared to zero
and the balance is zeroed.
HI_RANGE[CR] or
LO_RANGE[CR] or AUTO[CR] None Set the balance range.
GRAMS[CR] or KG[CR] or MG[CR]
or CARATS[CR] or DWT[CR] or
OZT[CR] or OZ[CR] or LB[CR] or
A[CR] or LIMITS[CR] or CAL1[CR]
or CAL2[CR] None Places the balance in the indicated mode or units. To abort
any of the CAL sequences or the LIMITS modes use
CLEAR[CR].
ZERO[CR] None The balance takes whatever action it would in response to a
push of the front panel zero switch. Normally tares the
balance.
TARE[CR] None If the balance is in the weighing mode, this command tares
the balance, otherwise it is ignored.
[decimal number]_HI[CR] None Sets the check weighing high limit register (register 88) to
the decimal number entered in the current units. Register 88
is undefined at every ON/OFF cycle.
[decimal number]_LO[CR] None Sets the check weighing low limit register (register 87) to
the decimal number entered in the current units. Register 87
is undefined at every ON/OFF cycle.
[decimal number]_CONVERT[CR] None Loads the number entered, as a "last front panel units"
relative multiplier, into the CONVERT register and enters
the CONVERT mode. CLEAR exits the convert mode and
un-defines the convert register.
[decimal number]_CAL[CR] None Loads a computed number based on the entered number, as a "last
front panel units" relative multiplier, into the CAL register and
enters the CAL mode. The display must be non-zero when this
command is issued. If the display is zero, a 3 second "Err"
message is displayed and the balance returns to its normal
weighing mode. The current weight reads as the number entered
with the appropriate sign. CLEAR exits the CAL mode and un-
defines the CAL register.
[integer]_PIECES[CR] None Loads a computed number based on the entered number, as
a "last front panel units" relative multiplier, into the PIECES
register and enters the PIECES mode. The display must be
non-zero when this command is issued. If the display is
zero, a 3 second "Err" message is displayed and the balance
returns to its normal weighing mode. CLEAR exits the
pieces mode and un-defines the pieces register.