Instruction Manual

Instruction Manual
D103434X012
Blocks
November 2014
79
AI Block Parameter List
D Read/Write Capability: RO ‐ Read Only, RW ‐ Read Write
D Mode: The block mode(s) required to write to the parameter
D Double indentation and shaded Index Number indicates sub‐parameter
Table B‐5. Analog Input Block Parameter Definitions
Label
PARAMETER_NAME
Index
Number
RO /
RW
Write Block
Mode
Range Initial Value Description
Static Revision
ST_REV
1 RO NA 0 to 65535 0
Data Type: Unsigned16
The revision level of the static data associated with
the function block. The revision value will be
incremented each time a static parameter value in
the block is changed
Tag Description
TAG_DESC
2 ALL 7 bit ASCII spaces
Data Type: Octet String
The user description of the intended application of
the block.
Strategy
STRATEGY
3 ALL 0 to 65535 0
Data Type: Unsigned16
The strategy field can be used to identify grouping
of blocks. This data is not checked or processed by
the block.
Alert Key
ALERT_KEY
4 ALL 1 to 255 0
Data Type: Unsigned8
The identification number of the plant unit. This
information may be used in the host for sorting
alarms, etc.
Block Mode
MODE_BLK
5
Data Type: DS‐69
Valid Bits: 7: OOS, 4: MAN, 3: AUTO
The actual, target, permitted, and normal modes of
the block.
Target: The requested block mode
Actual: The current mode of the block
Permitted: Allowed modes for Target
Normal: Most common mode for Target
TARGET 5.1 RW ALL
OOS
MAN
AUTO
OOS until block
is configured,
then last valid
target
ACTUAL 5.2 RO ALL OOS
PERMITTED 5.3 RW ALL OOS+MAN+AUTO
OOS, MAN,
AUTO
NORMAL 5.4 RW ALL AUTO
Block Error
BLOCK_ERR
6 RO
1: Block Configuration
Error
3: Simulate Active
7: Input Failure/ Bad PV
Status
14: Power‐up
15: Out‐of‐Service
Data Type: Bit String
0
=Inactive
1
=Active
Error status associated with the hardware or
software for the AI block.
Process Value
PV
7 RO
PV Status set equal to
FIELDV_VAL Status
Data Type: DS‐65
Reflects the scaled value from the configured
channel. Units set by OUT_SCALE and L_TYPE.
Primary Output
OUT
8 OOS, MAN OUT_STATE
Data Type: DS‐68
The block output value and status.
-Continued-