User guide

15
1 N/C
2 Data Out (TXD)
3 Data In (RXD)
4* Tare (External signal)
5 Clear To Send (CTS)
6 Data Terminal Ready (DTR)
7 Ground
8 Request To Send (RTS)
9* Print (External signal)
* External PRINT and/or TARE
switches may be installed as
shown in the diagram. Momen-
tary contact switches must be
used.
RS232 Commands
All communication is accomplished us-
ing standard ASCII format. Only the char-
acters shown in the following table are
acknowledged by the balance. Any other
commands, control characters or spaces
are ignored. Commands sent to the bal-
ance must be terminated with a carriage
return (CR) or carriage return-line line
feed (CRLF). For example, a tare com-
mand should appear as shown in the
adjacent diagram. Data output by the bal-
ance is always terminated with a carriage
return - line feed (CRLF).
TARE COMMAND
Field: T CR LF
Length: 1 1 1
RS232 INTERFACE
Output Formats
Data output can be initiated in one of two ways: 1) Using the Auto Print feature; 2)
Sending a print command (“P”) from a computer.
The output format is illustrated in the RS232 command table which follows.
RS232 COMMAND TABLE
? Print current mode.
nnnnA Set Auto Print Feature to “nnnn”
nnnn=0 turns feature OFF
nnnn=S output on stability
nnnn=C output is continuous
nnnn= 1-3600 sets auto print interval
C Begin span calibration
L Begin linearity calibration.
xM Place balance in unit “x”
( x=0 gram, x=1 ounces, x =2 troy ounces,
x=3 pennyweights, x=4 parts counting, x=5 pounds)
T Same effect as pressing Zero On
V Print software version
EscR Resets setup and print menus to factory default. Resets
RS232 configuration.
P Print display data.
LE Shows last error code. Response: Err: Error Number
xS Print stable data only. Where x=0 for OFF, x=1 for ON