Operating instructions

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6.2 Interface
RS232C interface and interface accessories
Every JB balance is fitted with an RS232C interface for attachment to a peripheral device
(e.g. printer or PC with a 9-pin male connector). Matching to a different device can be
carried out in the menu (Sections 4.3.11 – 4.3.16).
Command formats
Commands sent to the balance comprise one or more characters of the ASCII character
set. Here, the following must be noted:
• Enter commands only in uppercase.
• The possible parameters of the command must be separated from one another and
from the command name by a space (ASCII 32 dec., in this description represented
as /).
• The possible input for “text” is a sequence of characters of the 8-bit ASCII character set
from 32 dec to 255 dec.
• Each command must be closed by C
R
L
F
(ASCII 13 dec., 10 dec.).
The characters C
R
L
F
, which can be inputted using the Enter or Return key of most entry
keypads, are not listed in this description, but it is essential they be included for com-
munication with the balance.
Example
S – Send stable weight value
Command S Send the current stable net weight value.
Response S/S/WeightValue/Unit
Current stable weight value in unit actually set
under unit 1.
S/I Command not executable (balance is currently
executing another command, e.g. taring, or
timeout as stability was not reached).
S/+ Balance in overload range.
S/- Balance in underload range.
Example
Command S Send a stable weight value.
Response S/S/////100.00/g
The current, stable weight value is 100.00 g.
You will find a detailed description of the available interface
commands in the brochure “Reference Manual MT-SICS
Basic-S balances 11780447” downloadable from the Inter-
net under www.mt.com/sics-classic.
The wide range of features of the B-S balances regarding documentation of the results
can not be exploited to the full until a printer, e.g. the RS-P26 or LC-P45 from METTLER
TOLEDO is attached.
6.3 MT-SICS Interface commands and functions
Many of the balances and scales used have to be capable of integration in a complex
computer or data acquisition system.
To enable you to integrate balances in your system in a simple manner and utilize their
capabilities to the full, most balance functions are also available as appropriate com-
mands via the data interface.
All new METTLER TOLEDO balances launched on the market support the standardized
command set “METTLER TOLEDO Standard Interface Command Set” (MT-SICS). The
commands available depend on the functionality of the balance.
Basic information on data interchange with the balance
The balance receives commands from the system and acknowledges the command
with an appropriate response.
AB-S,PB-S RS232C
15
9 6
IN
GND
OUT
HAND
SHAKE
IN
DATA
OUT
RxD
TxD
CTS
RTS