Specifications

286
Reference Manual
00809-0100-4026, Rev HA
Appendix I: Analog-Input block
November 2014
Analog-Input Block
ALERT_KEY 04 None
The identification number of the plant unit. This information may be
used in the host for sorting alarms, etc.
MODE_BLK 05 None
The actual, target, permitted, and normal modes of the block.
Target: The mode to “go to”
Actual: The mode the “block is currently in”
Permitted: Allowed modes that target may take on
Normal: Most common mode for target
BLOCK_ERR 06 None
This parameter reflects the error status associated with the hardware or
software components associated with a block. It is a bit string, so that
multiple errors may be shown.
PV 07 EU of XD_SCALE The process variable used in block execution.
OUT 08 EU of OUT_SCALE The block output value and status.
SIMULATE 09 None
A group of data that contains the current transducer value and status,
the simulated transducer value and status, and the enable/disable bit.
XD_SCALE 10 None
The high and low scale values, engineering units code, and number of
digits to the right of the decimal point associated with the channel input
value.
OUT_SCALE 11 None
The high and low scale values, engineering units code, and number of
digits to the right of the decimal point associated with OUT.
GRANT_DENY 12 None
Options for controlling access of host computers and local control
panels to operating, tuning, and alarm parameters of the block. Not
used by device.
IO_OPTS 13 None
Allows the selection of input/output options used to alter the PV. Low
cutoff enabled is the only selectable option.
CHANNEL 15 None
The CHANNEL value is used to select the measurement value.
You must configure the CHANNEL parameter before you can configure
the XD_SCALE parameter.
L_TYPE 16 None
Linearization type. Determines whether the field value is used directly
(Direct) or is converted linearly (Indirect).
LOW_CUT 17 % If percentage value of transducer input fails below this, PV = 0.
PV_FTIME 18 Seconds
The time constant of the first-order PV filter. It is the time required for a
63 % change in the IN value.
FIELD_VAL 19 Percent
The value and status from the transducer block or from the simulated
input when simulation is enabled.
UPDATE_EVT 20 None This alert is generated by any change to the static data.
BLOCK_ALM 21 None
The block alarm is used for all configuration, hardware, connection
failure or system problems in the block. The cause of the alert is entered
in the subcode field. The first alert to become active will set the Active
status in the Status parameter. As soon as the Unreported status is
cleared by the alert reporting task, another block alert may be reported
without clearing the Active status, if the subcode has changed.
ALARM_SUM 22 None
The summary alarm is used for all process alarms in the block. The cause
of the alert is entered in the subcode field. The first alert to become
active will set the Active status in the Status parameter. As soon as the
Unreported status is cleared by the alert reporting task, another block
alert may be reported without clearing the Active status, if the subcode
has changed.
ACK_OPTION 23 None Used to set auto acknowledgment of alarms.
ALARM_HYS 24 Percent
The amount the alarm value must return within the alarm limit before
the associated active alarm condition clears.
HI_HI_PRI 25 None The priority of the HI HI alarm.
HI_HI_LIM 26 EU of PV_SCALE The setting for the alarm limit used to detect the HI HI alarm condition.
HI_PRI 27 None The priority of the HI alarm.
HI_LIM 28 EU of PV_SCALE The setting for the alarm limit used to detect the HI alarm condition.
Parameter
Index
number
Units Description