Cameron Scanner 2000 microEFM, Hardware User Manual

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E-6
Appendix E Scanner
®
2000 microEFM
Table E.3—Analog Input Block Parameters
Index Parameter Definition
x13 IO_OPTS Options for altering input and output block processing.
x14 STATUS_OPTS Options which the user may select in the block processing of
status.
x15 CHANNEL Identifies by number the logical hardware channel that is
connected to an AI block
x16 L_TYPE Determines if the values passed by the transducer block to the
AI block may be used directly (Direct) or if the value is in different
units and must be converted linearly (Indirect), or with square root
(Ind Sqr Root), using the input range defined by the transducer
and the associated output range
x17 LOW_CUT Limit used in square root processing. If the transducer value falls
below this limit, a value of zero percent of scale is used in block
processing.
x18 PV_FTIME Time constant of a single exponential filter for the Primary value,
in seconds.
x19 FIELD_VAL Raw value of the field device in percentage of the Primary value
range. Status reflects the Transducer condition before signal
characterization (L_TYPE) or filtering (PV_FTIME)."
x20 UPDATE_EVT Alert generated by any change to the static data
x21 BLOCK_ALM Alarm used for all configuration, hardware, connection failure or
system problems in the block. The cause of the alert is entered in
the subcode field.
x22 ALARM_SUM Current alert status, unacknowledged states, unreported
states, and disabled states of the alarms associated with the
function block
x23 ACK_OPTION Allows alarms associated with the block to be automatically
acknowledged
x24 ALARM_HYS Amount the Primary value must return to within the alarm limits
before the alarm condition clears. Alarm hysteresis is expressed
as a percentage of the Primary value span.
x25 HI_HI_PRI Priority of high high alarm
x26 HI_HI_LIM Limit of high high alarm in engineering units
x27 HI_PRI Priority of high alarm
x28 HI_LIM Limit of high alarm in engineering units
x29 LO_PRI Priority of low alarm
x30 LO_LIM Limit of low alarm in engineering units
x31 LO_LO_PRI Priority of low low alarm
x32 LO_LOLIM Limit of low low alarm in engineering units
x33 HI_HI_ALM Status for high high alarm and its associated time stamp
x34 HI_ALM Status for high alarm and its associated time stamp
x35 LO_ALM Status of the low alarm and its associated time stamp
x36 LO_LO_ALM Status of the low low alarm and its associated time stamp
NOTE The maximum time required to execute a Scanner 2000 AI block is 30 ms.