Instruction Manual

Instruction Manual
D103412X012
Detailed Setup—DI Function Block
January 2015
183
Table 4‐81. Discrete Input Function Block Parameter Definitions
Label
PARAMETER_NAME
Index
Number
RO /
RW
Block
Mode
Range Initial Value Description
Static Revision
ST_REV
1 RO N/A 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 RW ALL 7 bit ASCII Spaces
Data Type: Octet String
The user description of the intended
application of the block.
Strategy
STRATEGY
3 RW 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 RW 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+A
UTO
NORMAL 5.4 RO ALL AUTO
Block Error
BLOCK_ERR
6 RO N/A
Defined Bits
1: Block Configuration
Error
3: Simulate Active
7: Input Failure / Bad PV
Status
14: Power‐up
15: Out‐of‐Service
Dynamic
Data Type: Bit String
0=Inactive
1=Active
This parameter reflects the error status
associated with the hardware or software
components associated with a block. Multiple
errors may be shown, see table 4‐80.
Process Value Discrete
PV_D
7 RO N/A
PV_D Status set equal to
Field_Val_D Status
Dynamic
Data Type: DS‐66
The process variable used in block execution.
Value is converted from Readback to show the
actuator position in the same units as the set
point value.
Output Discrete
OUT_D
8
OOS
MAN
OUT_STATE
Data Type: DS‐66
The primary discrete value calculated as a
result of executing the function.
Simulate Discrete
SIMULATE_D
9
Data Type: DS‐83
Allows the transducer discrete input or output
to the block to be manually supplied when
simulate is enabled. When simulation is
disabled, the simulate value and status track
the actual value and status.
SIMULATE_STATUS 9.1 ALL 0
SIMULATE_VALUE 9.2 ALL 0
TRANSDUCER_STATUS 9.3 RO ALL 0
TRANSDUCER_VALUE 9.4 RO ALL 0
ENABLE/DISABLE 9.5
0=Not initialized
1=Simulation Disabled
2=Simulation Active
1=Simulation
Disabled
Transducer State
XD_STATE
10 ALL 0
Data Type: Uint16
Index to the text describing the states of a
discrete for the value obtained from the
transducer.
Output State
OUT_STATE
11 ALL 0
Data Type: Unsigned16
Index to the text describing the states of a
discrete output.
-Continued-