Rice Lake 320IS Plus Intrinsically Safe Digital Weight Indicator - Installation Manual - Manual (Page 65)

320IS Plus Installation Manual - Setpoints 59
Setpoint 4 is used to dispense material from the hopper. When the hopper weight falls to 100 LB less than its
weight at the relative setpoint (setpoint 3), digital output 1 is set off.
SETPOINT=4
KIND=–RELSP
VALUE=100
TRIP=LOW
BATCH=ON
DIGOUT=1
RELNUM=3
Setpoint 5 is used to evaluate the gross amount of material in the hopper after dispensing, and to maintain a
minimum material level in the hopper. When the hopper weight falls below 300 LB , digital output 2 becomes
active and the hopper is refilled to 1000 LB .
SETPOINT=5
KIND=GROSSSP
VALUE=300
TRIP=HIGHER
HYSTER=700
BATCH=ON
DIGOUT=2
Setpoint 6 is used to ensure that the operation performed in setpoint 4 is completed within 10 seconds. The
START and END parameters identify the setpoints monitored by the timer. If the timer expires before setpoint 5
starts, digital output 4 is turned on as an alarm to signal a process fault.
SETPOINT=6
KIND=TIMER
VALUE=100
START=4
END=5
DIGOUT=4
Using the ACCESS Parameter
The ACCESS parameter should be set ON when creating and testing batch routines. Once the batching routine is
complete and ready for production, ACCESS can be set to OFF to prevent changes to the configured setpoint
value, or to HIDE to prevent changing or viewing the value.
Setpoints with ACCESS=ON can be turned ON or OFF and the setpoint value can be changed when a batch is
not running by doing the following:
• To turn the setpoint off, use the
SETPOINT
key to access the setpoints and press the PRINT key until the
desired setpoint is displayed. If the setpoint is on, the lb LED will be lit. Press the
CLR
key to turn the
setpoint off
• To turn the setpoint on, use the
SETPOINT
key to access the setpoints and press the
PRINT
key until the
desired setpoint is displayed. If the setpoint is of, the lb LED will not be lit. Press the
CLR
key to turn the
setpoint on
• To change the value of a setpoint, press the
SETPOINT
key to access the setpoints, press the
PRINT
key until
the desired setpoint is displayed. Press the
GROSS/NET
key twice. Enter the new value (including the
decimal point) and press the TARE key. Press the
ZERO
key twice to return to the normal mode.
Setpoints cannot be turned on or off while in a batch sequence. A setpoint value cannot be changed while in
a batch sequence.
7.2.2 Example 2
The following example uses seven setpoints to control a two-speed fill operation where both fast and slow feeds
are on simultaneously.
Note