Orion 2xx - Manual (Page 20)

HI_ALM: The status for high alarm and its associated
time stamp.
LO_ALM: The status for low alarm and its associated
time stamp.
LO_LO_ALM: The status for low low alarm and its
associated time stamp.
The TRANSDUCER and AI block’s MODE_BLK parame-
ter must be set to AUTO to pass the PV Value through the
AI to the network.
Transducer scaling, called XD_SCALE, is applied to the
PV from the CHANNEL to produce the FIELD_VAL in
percent. Valid XD_SCALE in engineering units is limited
to the three allowable codes of centimeters (cm), inches (in),
and percent (%).
The AI can have a BLOCK_ERR when:
1. Channel is not set correctly.
2. XD_SCALE does not have suitable engineering units or has
range incompatibility.
3. SIMULATE parameter is active
4. AI block MODE is O/S (out of service).
NOTE: This can be caused by the Resource Block being OOS or the AI
Block not scheduled for execution.
5. L-TYPE not set or set to Direct with improper
OUT_SCALE.
The AI uses the STATUS_OPTS setting and the TRANS-
DUCER PV LIMIT value to modify the AI PV and OUT
QUALITY.
Damping Filter is a feature of the AI block. PV_FTIME
parameter is time constant of a single exponential filter for
the PV, in seconds. This parameter can be used to dampen
out fluctuation in level due to excessive turbulence.
The AI block has multiple ALARM functions that monitor
the OUT parameter for out of bound conditions.
4.0 Diagnostic Parameters
The Jupiter Model 2xx measurement engine runs through a
series of self-tests and will detect and report faulty opera-
tion. The TRANSDUCER BLOCK displays these faults in
the DEVICE_STATUS parameter and the PV Quality and
Substatus. Refer to Section 5.1.2 for more information on
specific faults and warnings.
BLOCK_ERROR is not used except for indicating Out of
Service (OOS).
17 46-649 Jupiter Magnetostrictive Transmitter - F OUNDATION fieldbus™