Vishay G4, Technical Manual, Page: 97 / 200

G4 Multi Channel Weighing Instrument
5-11
via communication.
The level status includes the influence from hystereses, but it does not show
the status of any digital outputs, connected to the Levels.
Setpoint function
General
The 16 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 for flexibility.
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 selection of the setpoint functions are made in set-up parameters ”Setp. X Source”
and ”Setp. X Scale”. In these set-ups you can select
which scale and what signal (weight value) the setpoint shall act on.
Connection of a setpoint to an output 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 possible
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.