Westlock ICOT 5400, Техническое руководство

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5/12/2017 TECH-538/D.W.O. 23160 Page 155 of 189
Complete List of Analog Input Block Parameters
Table 34:
Complete list of Analog Input block parameters
Index Parameter
mnemonic
Description / EDD Help Valid Range Default FCT
Default
Deep Default Units Write R/W
1 ST_REV 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.
Read
only
2 TAG_DESC The user description of the intended application of the block. R/W
3 STRATEGY The strategy field can be used to identify grouping of blocks.
This data is not checked or processed by the block.
R/W
4 ALERT_KEY The identification number of the plant unit. This information
may be used in the host for sorting alarms, etc.
1 to 255 None R/W
5 MODE_BLK The actual, target, permitted, and normal modes of the block. See MODE O/S O/S O/S NA R/W
6 BLOCK_ERR 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.
E Read
only
7 PV 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.
PV Read
only
8 OUT The primary analog value calculated as a result of executing the
function block.
OUT/-
10%
9 SIMULATE Allows the transducer analog input or output to the block to be
manually supplied when simulate is enabled. When simulate is
disabled, the simulate value and status track the actual value
and status.
disable
10 XD_SCALE 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.
XD
11 OUT_SCALE 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.
0-100% OUT
12 GRANT_DENY Options for controlling access of host computers and local
control panels to operating, tuning, and alarm parameters of the
block.
13 IO_OPTS Option which the user may select to alter input and output block
processing.
14 STATUS_OPTS Options of status which the user may select in the block
processing.
15 CHANNEL 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.
See Table 16 0 - Channel 0
16 L_TYPE Determines if the values passed by the transducer block to the
AI block may be used directly (Direct) or if the value is in
different units and must be converted linearly (Indirect), or with
square root (Ind Sqr Root), using the input range defined for the
transducer and the associated output range.