Sensor Input Control - Scaime eNod4-F ETHERNET Software User Manual

9.2.1.1 Defective measurement debounced time
The internal alarm flag is set active only after error conditions have always been true during this de-bounced time. It's
expressed in ms.
9.2.1.2 Defective measurement alarm activation time
The internal alarm flag remains active for this minimal "defective measurement alarm activation time" when it come
to be active and whatever the error conditions are during activation. It is expressed in ms.

9.2.2 Sensor input control

eNod4 features a weighing diagnosis system allowing to check the integrity of analog sensor input by electrically
simulating a load, resulting to a simulated weight value. This diagnostic system can be used together with the others
defects detection systems in order to achieve overall integrity check of the measurement chain. This system involves
two phases initiated by the user:
- The first, just after user calibration, allows taking a simulated reference weight value when the measuring
chain integrity is OK.
- The second, when the user wants to check the integrity of the system, allows to make the difference between
a new simulated weight value and the reference. Then this difference can be compared with a dedicated
maximum tolerance value.
9.2.2.1 Sensor input control reference
Reference value expressed in factory calibrated points for the sensor(s) input control test. The value is automatically
determined and stored after executing the sensor input reference command. When the sensor input reference
command is in progress the bits b3b2 in the Measurement status are set to 0b01. Its default value is zero.
9.2.2.2 Sensor input control result
Result of sensor(s) input control test expressed in 1/10 of user weight unit. Its value is automatically determined and
stored after executing the sensor input control command. This test result represents the weight difference between
the reference value and the current test value. It is set to -1 when the sensor input control command is in progress or
the command failed, these conditions cause the bits b3b2 in the Measurement status to be set to 0b01. Its default
value is zero.
9.2.2.3 Sensor input control result max. tolerance
The Sensor input control result variable is compared with the Sensor input control result max. tolerance parameter
which is expressed in 1/10 of user weight unit and has a default value of 30. If the sensor input control result value is
greater than or equal to Sensor input control result max. tolerance then the bits b3b2 in the Measurement status are
set to 0b01.
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User manual SCAIME:
NU-Soft-eNod4F-ETH-E-0716_235709-C.doc