680 Synergy Plus – Digital Weight Indicator
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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.
SETPT 5
KIND=GROSS
VALUE=300
TRIP=HIGHER
HYSTERS=700
DIG OUT=2
BATCH=ON
Setpoint 6 is used to ensure 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.
SETPT 6
KIND=TIMER
VALUE=100
START=4
END=5
DIG OUT=4
9.2.2 Example 2
The following example uses six setpoints to control a two-speed fill operation where both fast and slow feeds are on
simultaneously.
Bits 1 and 2 in the Digital I/O menu (
) are assigned to batch start and batch run functions: BATRUN
must be on (low) before the BATSTRT input starts the batch.
SLOT 0, BIT 1=BATSTRT
SLOT 0, BIT 2=BATRUN
BATCHNG=MANUAL
Setpoint 1 ensures the scale is empty (0±2 lb).
SETPT 1
KIND=GROSS
VALUE=0
TRIP=INBAND
BANDVAL=2
BATCH=ON
Setpoint 2 checks for the weight of a container (>5 lb) placed on the scale.
SETPT 2
KIND=GROSS
VALUE=5
TRIP=HIGHER
BATCH=ON
