Fluid Components International ST100 Series Foundation Fieldbus - Manual (Page 18)

ST100 Series Foundation Fieldbus
16 Fluid Components International LLC
Temperature Analog Input Block
This block takes the input data from the Process Data Transducer Block, selected by the “Temperature 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 temperature value is passed directly to the PV of this AI block, and the XD_SCALE information is not
used.
Indirect The Process Data Transducer flow 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 Temperature Analog Input Block MUST
be set to “Temperature 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 Temperature Analog Input Block
The table below summarizes the ST100 Temperature 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 TEMPERATURE value from
the transducer block
8 OUT DS-65 ST100 TEMPERATURE value avail-
able 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
"Temperature 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