DOSAGE
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6.7
“Manual weight” type of an activities
a) Description
This activity is useful when one wants to add to the dosage an amount of material having a known fixed
weight, which is set when entering the activity in the database, counting it in the consumptions without
having to dose it (for example, a bag of dust of 20kg, a tank of additives of 3kg...).
Therefore it may be set at the dosage end, for example, to remind the operator to add this material to the
formula in execution.
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This activity automatically starts at the end of the previous one.
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It foresees that it is manually ended by the operator; in fact, the operator must give the dosage end
command.
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Once the dosage is started, the instrument tares the weight on the scale and enables the eventual
linked output.
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The display, during the ”Manual Weight” activity, shows the
MANUAL WEIGHT
message.
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The operator can add the pre-weighed quantity of material to the already dosed weight.
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It is not necessary to add the material on the scale, the activity ends also without dosing the weight,
and the weight set in the formula will be always counted in the consumptions, independently from
the dosed weight.
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To end the activity the operator will press for an instant the external INPUT 1 or the START button,
so that:
1)
The eventual linked output will be disabled.
2)
The data of the executed activity is automatically stored and transmitted through the serial line
for the printing or the storage on PC/PLC.
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A wait time starts equal to the DATA READING TIME
(
) in order to allow the reading of the
activity data; the instrument waits for this time before passing to the following phase.
6.8
“Remote dosage” type of an activities
a) Description
This activity has the purpose to remotely control the other instruments which execute the dosage; there
are two kinds of dosage execution mode:
SEQUENTIAL mode:
it allows to one by one remote control the instruments for executing the dosage
according to the 485 address number order; the activity is terminated only when the remote instrument
dosage has terminated.
PARALLEL mode:
it allows to control all the remote instruments (up to 8) to execute the dosage at the
same time; the activity is terminated when all the remote instruments dosage are terminated.
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This activity automatically starts at the end of the previous one.
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Once the remote dosage is started and the remote instrument tares the weight on the scale
connected to it.
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During the ”Remote Dosage” activity, if the SEQUENTIAL mode is enabled, the display shows the
ADDRESS NUMBER XX
message (xx indicates 485 address of the remote instrument) and the weight
window shows the weighing value of the remote instrument; if the PARALLEL mode is enabled, the