Tecsis EZE30, Руководство по эксплуатации, программированию и обслуживанию

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Programmer`s manual
EZE30
Annex A Page 8 BE 948 a www.tecsis.de
SR
Software Reset
– this command will respond with „OK‟ and after maximum 400ms perform a complete reset of the
EZE30.
LI List settings - dump the complete EZE30 setup formatted as lines of ASCII characters to the serial channel. The output
refers to the front panel schematic columns 1 to 8.
3.2 WEIGHER CONTROL COMMANDS
– SZ, RZ, ST, RT
The following commands provide the means to control the setting and resetting of the zero and tare points. The availability
of net weighing depends on these functions.
The zero point which is set at calibration time, rema
ins the “true” zero, but the “current” zero will be the basis for the output
result. Remember that the “current” zero can be influenced by the “zero tracking” function, and this should be taken into
account when designing the application. A basic system co
ntrol is the disabling of the “set zero „and “set tare”functions
whenever the weighing signal is not stable, as defined by the
“no-motion” function. Furthermore, the zero point cannot be reset if it has moved more than 20% away from the original
calibration zero point, with respect to the maximum allowable display value.
SZ
Set the system zero -
this command will create a “current” zero point which will become the basis for all weighed
operation, until further updated by the zero tracking function, or an
other SZ command or the “reset zero” command (RZ). As
previously stated, any attempt to zero a drift of more than +/- 20% of the maximum allowable display value will result in the
SZ command being rejected (
ERR ). The SZ command is also rejected if the weighing signal is fluctuating, as defined by the
“zero no-motion” function. The “zero signal stable” bit in the responses to the “info status” (IS) command must therefore be
active before a SZ command can be accepted. Issuing the SZ command, which has no parameters, will return the
OK or
ERR response. If OK
is returned, then the “zero action performed” bit in the response to the “info status” (IS) command will
be activated.
RZ
Reset the zero point to the “calibration” zero - this command will return the zero point to that which was stored during
the calibration procedure. Issuing the RZ command, which has no parameters, will return the OK or ERR response. If OK is
returned, then the “zero action performed” bit in the response to the “info status” (IS) command will be de-activated.