Emerson Fisher FIELDVUE DVC6000f Instruction Manual page 74

DVC6000f Digital Valve Controllers
Label
PARAMETER_NAME
Cycle Type
CYCLE_TYPE
Cycle Selection
CYCLE_SEL
Minimum Cycle Time
MIN_CYCLE_T
4
Memory Size
MEMORY_SIZE
Nonvolatile Cycle Time
NV_CYCLE_T
Free Space
FREE_SPACE
Free Time
FREE_TIME
RCAS Timeout
SHED_RCAS
ROUT Timeout
SHED_ROUT
4-14
Table 4-3. Resource Block Parameter Definitions (Continued)
Index RO /
Mode
Number RW
19 RO NA 0: Scheduled
20 ALL 0: Scheduled
21 RO NA 3200
22 RO NA 45
23 RO NA Positive
24 RO NA 0 to 100%
25 RO NA 0 to 100%
26 RW ALL Positive
27 RW ALL Positive
−Continued−
Initial
Range
Value
Data Type: Bit String
0 = Inactive
1 = Active
0: 1
Identifies the block execution methods
available for this resource, may be scheduled,
completion of block execution
Data Type: Bit String
0 = Inactive
0: 0 1 = Active
Identifies the block execution method selected
for this resource.
Data Type: Unsigned32
Time duration of the shortest cycle interval (in
3200 1/32 millisecond) of which the resource is
capable. In the digital valve controller this value
is fixed at 3200 (100 milliseconds).
Date Type: Unsigned16
Memory, in kilobytes, available for additional
function blocks. Because no additional function
45
blocks may be added to DVC6000f
instruments, this parameter value is fixed at 45.
Date Type: Unsigned32
This parameter identifies the minimum time
interval (in 1/32 milliseconds) between copies
of NV class data to NV memory. NV memory is
updated only if there has been a change in the
dynamic value. The last value saved in NV
memory will be available for the restart
procedure or a power cycle. A non-zero value
576,000
regulates the frequency of writes, thus
protecting the life span of the device. If the
value is zero, data will never be automatically
copied. Changes made by other than
publishing to NV parameters will be copied to
non-volatile memory immediately. For
DVC6000f instruments, this parameter value is
fixed at 576,000 (18 seconds).
Data Type: Float
Percent of memory available for additional
function blocks (see also MEMORY_SIZE).
0
Because no additional function blocks may be
added to DVC6000f instruments, this
parameter value is fixed at 0.
Data Type: Float
Percent of block processing time that is free to
process additional blocks. Because no
0
additional function blocks may be added to
DVC6000f instruments, this parameter value is
fixed at 0.
Date Type: Unsigned32
Time duration (in 1/32 millisecond) at which to
give up on computer writes to function block
RCAS parameters. If this time is exceeded
640000 then the function block will change to a mode
other than RCAS based on the SHED_OPT
parameter setting. Shed from RCAS mode
never happens when SHED_RCAS is set to
zero.
Data Type: Unsigned32
Time duration (in 1/32 millisecond) at which to
give up on computer writes to function block
ROUT parameters. If this time is exceeded
then the function block will change to a mode
640000
other than ROUT based on the SHED_OPT
parameter setting. Shed from ROUT mode
never happens when SHED_ROUT is set to
zero.
Description
December 2009