Yokogawa YVP110 - Manual (Page 127)

A-16
IM 21B04C01-01E
A1.8 Parameters of AR Block
Relative
Index Index
Parameter
Name
Valid
Range
Default
(factory
setting)
Write Description
0 17500 BLOCK_
HEADER
TAG: “AR” O/S Information relating to this function block, such as block
tag, DD revision, and execution time.
1 17501 ST_REV 0 Indicates the revision level of the set parameters
associated with the AR block. If a setting is modified,
this revision is updated. It is used to check for parameter
changes, etc.
2 17502 TAG_DESC Null A universal parameter that stores comments describing
tag information
3 17503 STRATEGY 1 A universal parameter intended for use by the high-level
system to identify function blocks.
4 17504 ALERT_
KEY
1-255 1 Key information used to identify the location where an
alert has occurred. Generally, this parameter is used
by the high-level system to identify specific areas in a
plant that are under the control of specific operators,
to distinguish necessary alarms only. This is one of the
universal parameters.
5 17505 MODE_BLK AUTO A universal parameter representing the operation status
of the AR block. It consists of the actual, target, permit,
and normal modes.
6 17506 BLOCK_
ERR
0 Indicates the error status relating to the AR function
block. The bit used by this function block is as follows;
Bit 1: Block Configuration Error
Bit 15: O/S mode
7 17507 PV 0 The result of a range extension function is substituted
into this.
When viewed from the computing equation, PV is the
main input.
8 17508 OUT 0 MAN Block output
9 17509 PRE_OUT 0 Always indicates the calculation result. The value is
substituted into OUT in auto mode.
10 17510 PV_SCALE O/S Indicates PV scaling (for making a memo).
11 17511 OUT_
RANGE
Output scaling for the host (for making a memo).
12 17512 GRANT_
DENY
0 The parameter used to check if various operations
have been executed. The bits in the GRANT parameter
corresponding to various operations are set before any
of them are executed. After the operations are complete,
the DENY parameter is checked to find out if any bit
corresponding to the relevant operation has been set. If
no bit is set, it is evident that the operations have been
executed successfully.
13 17513 INPUT_
OPTS
0 Determines whether an input is used as a “good” input
when the input status is “bad” or “uncertain.”
Bit Function
0 Handles IN as “good” input if its status is
“uncertain.”
1 Handles IN_LO as “good” input if its status is
“uncertain.”
2 Handles IN_1 as “good” input if its status is
“uncertain.”
3 Handles IN_1 as “good” input if its status is “bad.”
4 Handles IN_2 as “good” input if its status is
“uncertain.”
5 Handles IN_2 as “good” input if its status is “bad.”
6 Handles IN_3 as “good” input if its status is
“uncertain.”
7 Handles IN_3 as “good” input if its status is “bad.”
8 to
15
Reserved