SERIAL INTERFACE RS 232
1) General characteristics
The balance sends the value displayed in serial form RS232C, allowing to print weight on
PC monitor or on a serial printer. In case of connection with PC, it is also able to get
commands, always in RS232C format, that allow to effect all operations with balance keys
through PC keyboard. Baud rate is selectable trough MENU and keys, as
shown previously, at 1200, 2400, 4800, and 9600 baud. The format of character is of 8 bit
preceded by a start bit and followed by a stop bit. Parity is not considered.
The connector to use for PC connection is n.1 (fig.1 page 33).
2) Interface selection for printer
Otherwise, if it has been selected output for serial printer, weight value will be printed,
once this will be stable, pressing PRINT key. If weight does not become stable in 10
seconds, the message “ERROR” will be displayed and an acoustic alarm will be emitted.
The connector to use for printer connection is n.1 (fig. 1 page 33).
3) Display format
The string sent is composed of 14 characters: -
first character : weight symbol (space or -) ;
- second - ninth character : weight or pieces number ; -
tenth - twelfth character : measure unit symbol ; -
thirteenth character : carriage return ;
- fourteenth character : line feed.
1) Interface selection for PC
Selecting PC output (personal computer
IBM compatible) through MENU and
keys, weight is sent continuously at the
same frequency with which weight
indication is updated on display. It is
possible to effect all balance functions
directly from PC keyboard, sending to the
CODE FUNCTION
“T” = H54 TARE
“C” = H43 CALIBRATION
“E” = H45 ENTER
“M” = H4D MENU
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