Fluid Components International ST100 Series Foundation Fieldbus - Manual (Page 19)

ST100 Series Foundation Fieldbus
Fluid Components International LLC 17
INDEX PARAMETER DATA TYPE (LENGTH) INITIAL VALUE DESCRIPTION
23 ACK_OPTION Bitstring(2)
24 ALARM_HYS Float
25 HI_HI_PRI Unsigned 8
26 H_HI_LIM Float
27 HI_PRI Unsigned 8
28 HI_LIM Float
29 LO_PRI Unsigned 8
30 LO_LIM Float
31 LO_LO_PRI Unsigned 8
32 LO_LO_LIM Float
33 HI_HI_ALM DS-71
34 HI_ALM DS-71
35 LO_ALM DS-71
36 LO_LO_ALM DS-71
Totalizer Analog Input Block
This block takes the input data from the Process Data Transducer Block, selected by the “Totalizer Average Channel” and makes it available to other
function blocks at its output.
L_TYPE parameter
This parameter determines how the values passed by the Process Transducer Block will be used in the block. There are two options; direct or
indirect.
Direct The Process Data Transducer Totalizer value is passed directly to the PV of this AI block, and the XD_SCALE information is not used.
Indirect The Process Data Transducer Totalizer value is converted to the OUT_SCALE and the information of XD_SCALE is applied.
CHANNEL parameter
This parameter selects the process variable to be used. The CHANNEL parameter, in the ST100 for the Totalizer Analog Input Block MUST be
set to “Totalizer Average”.
XD_SCALE parameter
This parameter sets the high and low scale values, the units index, and the number of digits after the decimal point, for display purposes.
ST100 Totalizer Analog Inupt Block
The table below summarizes the ST100 Totalizer Analog Input Block.
INDEX PARAMETER DATA TYPE (LENGTH) INITIAL VALUE DESCRIPTION
1 ST_REV Unsigned 16 0
2 TAG_DESC OctString(32) Spaces
3 STRATEGY Unsigned 16 0
4 ALERT_KEY Unsigned 8 0
5 MODE_BLK DS-69 O/S
6 BLOCK_ERR Bitstring(2)
7 PV DS-65 ST100 Totatizer value from the trasn-
ducer block