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Instruction Manual
IM-106-880C, OI
September 2009
Hazardous Area OCX 8800
7-58
Table 7-33. Input Selector Function Block System Parameters
Parameter
Index
Number
Units Description
ALERT_KEY 4 None The identification number of the plant unit. This information may be used in the host for
sorting alarms, etc.
BLOCK_ALM 24 None The block alarm is used for all configuration, hardw are, 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.
BLOCK_ERR 6 None This parameter reflects the error status associated w ith the hardw are or software
components associated with a block. It is a bit string, so that multiple errors may be
shown.
DISABLE_1 15 None A Connection from another block that disables the associated input fromthe selection.
DISABLE_2 16 None A Connection from another block that disables the associated input fromthe selection.
DISABLE_3 17 None A Connection from another block that disables the associated input fromthe selection.
DISABLE_4 18 None A Connection from another block that disables the associated input fromthe selection.
GRANT_DENY 9 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.
IN_1 11 Determined by
source
The connection input from another block. One of the inputs to be selected from.
IN_2 12 Determined by
source
The connection input from another block. One of the inputs to be selected from.
IN_3 13 Determined by
source
The connection input from another block. One of the inputs to be selected from.
IN_4 14 Determined by
source
The connection input from another block. One of the inputs to be selected from.
MIN_GOOD 20 None The minimum number of good inputs 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: Allow ed modes that target may take on Normal: Most common mode for
target.
OP_SELECT 22 None Overrides the algorithm to select 1 of the 4 inputs regardless of the selection type.
OUT 7 EU of IN The block output value and status.
OUT_UNITS 8 None The engineering units of the output. Typically, all inputs have the same units and the
value is also the same.
SELECTED 21 None The selected input number (1–4).
SELECT_TYPE 19 None Specifies selection method (see Block Execution).
STATUS_OPTS 10 None Allows selection of options for status handling and processing. The supported status
option for the PID block is Target to Manual if Bad IN.
STRATEGY 3 None The strategy field can be used to identify grouping of blocks. This data is not checked or
processed by the block.
ST_REV
1 None The revision level of the static data associated w ith the function block. The revision
value w ill be incremented each time a static parameter value in the block is changed.
TAG_DESC
2 None The user description of the intended application of the block.
UPDATE_EVT
23 None This alert is generated by any change to the static data.