Parameters of DI Block
Relative
Index
Index
29
5029
UPDATE_
EVT
30
5030
BLOCK_ALM
Parameters of DI Block
Relative
Index
Index
DI1
DI2
0
6000
6100
1
6001
6101
2
6002
6102
3
6003
6103
4
6004
6104
5
6005
6105
6
6006
6106
7
6007
6107
Table 62 AO Block Parameters (Continued)
Parameter
Default
Name
(factory
setting)
–
–
Table 63 DI Block Parameters
Parameter
Default
Name
(factory
setting)
Block Header
ST_REV
0
TAG_DESC
Spaces
STRATEGY
1
ALERT_KEY
1
MODE_BLK
O/S
BLOCK_ERR
—
PV_D
—
Write
—
Shows the contents of an update event
upon occurrence.
—
Shows the contents of a block alarm upon
occurrence.
Write
Block Tag
Information about this block, including the
=O/S
block tag, DD revision, execution time
—
Incremented when a change is made to the
parameter settings for the AO block to indicate
the revision level of the settings, and used to
see whether there is a change in parameter
settings.
Universal parameter storing the description of
the tag
Universal parameter used by an upper-level
system to classify the function blocks
Universal parameter used as a key to identify
the point from which an alert is issued;
normally used by an upper level system to
select alerts to provide to a particular operator
who covers a specific area of the plant.
Universal parameter that indicates the block
operation conditions and is composed of actual
mode, target mode, permitted modes, and
normal mode.
—
Indicates the error statuses related to the block
itself.
—
Indicates the primary discrete value (or the
corresponding process value) used to execute
the specified actions, and the status of that
value.
201
Function Block Parameters
Description
Description