Page 54 of 82
Date: 27.01.06
PLCout: Data bytes from master to 9221
Byte 1:
MSB
LSB
X
Reset
Max value
buffer
Reset
Min value
buffer
Reset
evaluation
Reset
mean
value
Reset
TARE
Perform
TARE
Freeze
evaluation
Byte 2:
MSB
LSB
Shunt
C
Shunt
B
Shunt
A
Adopt
upper limit
/lower limit
Save
s
etup in
EEPROM
Test
method
ALT/DC
B
Test
method
ALT/DC
A
Perform
sensor test
NOTES
•
Freeze evaluation
•
This can be used to prevent the evaluation. While this bit is set, the
evaluation routine is not executed and the last evaluation result is
retained.
•
The red LED flashes slowly as visual indication of this state.
•
In addition, the Evaluation valid flag is reset because the present
evaluation is invalid.
•
Perform TARE
•
A 0-1 edge on this bit starts a tare operation.
•
A measured value is obtained from 500 (*1ms) readings.
•
The current measured value is subtracted from all future measured
values.
•
The TARE active flag is set.
•
Clear tare
•
A 0-1 edge on this bit clears the current tare setting.
•
The TARE active flag is reset.
•
Reset mean value
•
Averaging of the current measured value is reset.
•
This starts the recording of a completely new measured value.
•
Reset evaluation
•
Evaluation is reset.
•
Only serves any purpose for the STATIC evaluation type (in this case the
NOK evaluation result is set once the measurement goes outside the OK
range, and stays sets even if the measured value returns to the OK
region in the meantime).
•
The displayed error is cleared and a new evaluation process started.
