IM 01E20F02-01E
8-9
8. PARAMETER LISTS
8.3 AI Function Block
T0803-1.EPS
Write
Mode
Explanation
Factory
Default
Relative
Index
Parameter NameIndex
Information on this block such as Block Tag, DD Revision,
Execution Time etc.
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.
The user description of the intended application of the block
The strategy field can be used to identify grouping of blocks.
This data is not checked or processed by the block.
Valid range is 0 to 65535.
The identification number of the plant unit. This information may
be used in the host for sorting alarms, etc. Valid range is 1 to 255
The mode parameter is a structured parameter composed of the
target mode, the actual mode, the normal mode and the
permitted mode.
Target: Mode to set the mode of the block
Actual: Indicates the current operating condition.
Permit: Indicates the operating condition that the block is
allowed to take.
Normal: Indicates the operating condition that the block will
usually take.
This parameter reflects the error status associated with the
hardware or software components associated with a block. It is
a bit string, so that multiple errors may be shown.
Either the primary analog value for use in executing the function,
or a process value associated with it. May also be calculated
from the READBACK value of an AO block.
The primary analog value calculated as a result of executing
the function.
Allows the transducer analog 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.
1: Disable, 2: Active
The high and low scale values, engineering units code, and
number of digits to the right of the decimal point used with the
value obtained from the transducer for a specified channel.
Refer to 5.4 AI Function Block Parameters for the units available.
The high and low scale values, engineering units code, and
number of digits to the right of the decimal point to be used in
displaying the OUT parameter and parameters which have the
same scaling as OUT. Refer to 5.4 AI Function Block
Parameters for the units available.
Options for controlling access of host computers and local control
panels to operating, tuning and alarm parameters of the block.
Options which the user may select to alter input and output block
processing.
bit 10: Low cutoff
Options which the user may select in the block processing of status.
bit3: Propagate Fault Forward, bit6: Uncertain if limited,
bit7: Bad if limited, bit 8: Uncertain if Man mode.
The number of the logical hardware channel that is connected to
this I/O block. This information defines the transducer to be used
going to or from the physical world.
1: PV
In the case of AXF, always set 1: Direct. (Note)
Sets low cut point of output. This low cut value becomes
available by setting "Low cutoff" to "IO_OPS".
1 4001 ST_REV 0 -
3 4003 STRATEGY 1 Auto
4 4004 ALERT_KEY 1 -
5 4005 MODE_BLK Auto bit Auto
6 4006 BLOCK_ERR 0 -
7 4007 PV 0 -
8 4008 OUT 0 -
9 4009 SIMULATE 1: Disable Auto
10 4010 XD_SCALE O/S
13 4013 IO_OPTS 0x0000 O/S
14 4014 STATUS_OPTS 0x0000 O/S
15 4015 CHANNEL 1 O/S
16 4016 L_TYPE 1: Direct Man
17 4017 LOW_CUT 0 Auto
Time constant of a single exponential filter for the PV, in seconds. 18 4018 PV_FTIME 0 Auto
11 4011 OUT_SCALE O/S
12 4012 GRANT_DENY 0x00 Auto
2 4002 TAG_DESC spaces Auto
0 4000 Block Hedder TAG="AI" O/S
Specified at the
time of order,
otherwise set below.
10.0
0.0
1061: m/s
4
10.0
0.0
1061: m/s
4
(Note) "Indirect" also can be set.
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