Pressure analog input block – Fluid Components International ST100 Series Foundation Fieldbus User Manual
Page 20

ST100 Series Foundation Fieldbus
18
Fluid Components International LLC
INDEX
PARAMETER
DATA TYPE (LENGTH)
INITIAL VALUE
DESCRIPTION
8
OUT
DS-65
ST100 Totalizer value available to
other function blocks.
9
SIMULATE
DS-82
Disable
10
XD_SCALE
DS-68
0 - 100%
11
OUT_SCALE
DS-68
0 - 100%
12
GRANT_DENY
DS-70
0
13
IO_OPTS
Bitstring(2)
0
15
CHANNEL
Unsigned16
0
The Channel needs to be set to "Total-
izer average"
16
L_TYPE
Unsigned 8
0
17
LOW_CUT
Float
0
18
PV_FTIME
Float
0
19
FIELD_VAL
DS-65
20
UPDATE_EVT
DS-73
21
BLOCK_ALM
DS-72
22
ALARM_SUM
DS-74
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
Pressure 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 Pressure value is passed directly to the PV of this AI block, and the XD_SCALE information is not used.
Indirect The Process Data Transducer Pressure 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 “Pressure Average”.