Pavone Systems DAT 1400 Technical Manual page 24

Weight transmitter/indicator with rs232 serial, analog and fieldbus output
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PROGRAMMING THE WEIGHT SET-POINTS
The set-points are compared with the weight to drive the relative logic output. The comparison criterionis
defined during set-up of the logic inputs/outputs (see the relevant section).
To access the Set points setting, press the SET key while viewing the weight
MENU
MESSAGE
SEtP. 1
Set-point
SEtP. 2
The set-points are compared with the weight to drive the relative logic output. The comparison criteria
is established in the set-point set-up procedure.
When the weight is not detectable or out of range, all the outputs are disabled (contact open or closed
depending on the MODE; see the relevant chapter).
During the step of setting the set-points, both outputs are disabled. If the set-point value in the memory
is 0, the relative output is never enabled, regardless of the set-up of the selected set-points.
WEIGHT ACQUISITION
The weight can be printed or sent to the serial port / fieldbus (depending on the setting of the commu-
nication ports), in the following ways:
• In automatic mode (in the event of selecting the "automatic" serial communication protocol).
• Through the instrument keyboard (pressing the PRG key, in the event of selecting the "on demand"
serial communication protocol).
• From the external input (in the event of selecting the "on demand" serial communication protocol
and the "data transmission on demand" operation selected on at least one input).
• Through the serial line (in the event of selecting the "slave" serial communication protocol), by
sending the weighing execution command.
• Through the fieldbus, using the weighing execution command in the register command.
The following are the conditions for weight acquisition:
• Stable weight (or stabilised within 3 seconds from the command).
• Since the last acquisition carried out, the weight has undergone a change of at least 20 divisions
(weight difference).
• Gross weight equal or greater than the minimum weight (20 divisions) and less than the maximum
capacity.
• Net weight not zero.
In METRIC operation, if the alibi memory is configured, the transaction is recorded. The net weight and
the weight identification code are also stored in a memory register which can be read on a request
from the fieldbus.
Only in FREE operation and print executed by key or ester-no input, the weighing is permitted even with
the gross weight less than the minimum weight or with the net weight at zero.
CALIBRATION JUMPER
In the event of metrological use, the enabling to the setting of the metric parameters can be done with
the internal bridge towards the board.
Page 22
DESCRIPTION
Sets value of Set-point 1
Sets value of Set-point 2
TYPE DEFAULT
RANGE
Com.
0
0÷Capacity
Com.
0
0÷Capacity
IND.FIELDBUS
201(MSB)
202(LSB)
203 (MSB)
204 (LSB)

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