Scientech Zeta Series - Manual (Page 13)

13
User Action Balance Response
7 AUTO SEND SELECTION (AS oFF is default). “AS on” means the
balance will automatically send the display contents over the RS-232
interface at the selected time interval placed into register 89. This time
interval may be inputted via the optional PDA or through Type 4 RS-232
commands. Refer to these sections for instructions. A time and date stamp
may also be sent at the same time (see Type 4 RS-232 Commands section).
The auto send selection is not functional if the send-when-stable command
is on (see Selectable Filter section).
Press the MODE button.
Press the SEND button to choose between on or off. Then press the ZERO
button.
The current auto send setting, AS oFF or AS
on and OK are displayed.
SAVEd OK is displayed followed by the
chosen setting and OK.
8 CONTINUOUS SEND SELECTION (CS oFF is default). “CS on” means
the balance will automatically send the weight reading over the RS-232
interface at the baud rate selected. Display readings are updated every 200
milliseconds. The continuous send selection is not functional if the send-
when-stable command is on (see Selectable Filter section).
Press the MODE button.
Press the SEND button to choose between on or off. Then press the ZERO
button.
The current continuous send setting, CS oFF
or CS on and OK are displayed.
SAVEd OK is displayed followed by the
chosen setting and OK.
9 DISPLAY BLANKING SELECTION (bL on is default). “bL on” means
that every time the balance receives a command, the display will blink.
Press the MODE button.
Press the SEND button to choose between on or off. Then press the ZERO
button.
The current display blanking setting, bL on
or bL oFF and OK are displayed.
SAVEd OK is displayed followed by the
chosen setting and OK.
10 Press the ON/OFF button. The display blanks.
11 Press the ON/OFF button. The balance goes through the turn on
sequence and returns to normal operation
with the new RS-232 configuration.
Using Bi-Directional Communications:
Scientech electronic balances, interfaced to a computer via the RS-232 port, can be controlled by a computer program in the same way
an operator would control the balance using a PDA. 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 balances.
If local control has been enabled (LC on) via RS-232 front panel configuration, RS-232 communication is limited to balance sending
only as all incoming RS-232 command strings are ignored by the balance. To enable bi-directional RS-232 communication, set the
local control to off (see RS-232 Front Panel Configuration section).
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.