G5 Weighing Instrument
5-15
Setpoint function
General
The 4 Setpoints can be used for fast, accurate and reliable supervision of weight
values. The Setpoint function is of a one shot type. The function is activated by a
command from the master computer/PLC and deactivated when the weight has
reached the Setpoint value.
The Setpoints can be connected to any digital output in the instrument.
The Setpoints can only be controlled by a master computer/PLC via serial
communication.
NOTE: To ensure good operation during the time when a setpoint is activated,
the zero-tracking function is not working.
Set-up
The set-up of the setpoint function is made with parameter
Setpoint X Source
. In this
set-up you can select what signal (weight value) the setpoint shall act on. Assignment
of an output to a setpoint is made in set-up menu
Outputs
.
Operation
The wanted setpoints (weight levels) must be loaded into the corresponding Modbus
registers.
The setpoint(s) are activated by communication. If a setpoint is connected to an output,
then corresponding digital output is activated.
When the selected weight becomes higher than the setpoint the setpoint function is
deactivated and the corresponding
Setpoint X cycle done
bit is set. A connected
digital output is also deactivated at the same time.
The setpoint function, and possible connected digital outputs, can also be deactivated
by sending command
Deactivate setpoint X
.
NOTE the
Setpoint X cycle done
for a setpoint is reset when the setpoint value is
loaded and when the setpoint is activated.
Digital inputs and outputs
The G5 instrument has 4 inputs and 4 outputs. All input and output functions are
controlled by set-up parameters in the instrument. The digital inputs can be used for
remote operation of the instrument. The digital outputs can be used for control of
external equipment and for indication of instrument status.
Analog output
The G5 instrument has a one analog output that will represent a selected signal in the
instrument in form of an analog current or voltage signal. All analog output functions are
defined by parameters in sub menu
Analog outputs
, see chapter ‘Set-up’.
Summary of Contents for G5
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