ProSoft Technology 5228-DFNT-HART - Manual (Page 28)

HART Protocol Configuration ProLinx-HART ♦ ProLinx Gateway
Driver Manual HART Master with Analog I/O
Page 28 of 104 ProSoft Technology, Inc.
October 13, 2011
3.1 [Analog HART Card x]
3.1.1 Database Register
-1, 0 to 3984
This parameter sets the database address in the module where the following values will
be placed:
Digitized values (4 Registers)
Counters (4 Registers)
Scaled values (8 Registers, 4 floating values)
Counters are incremented, usually about 15 times per second, to show the number of
times digital values have been scaled.
If the parameter is set to -1, these registers will not be placed in the database.
3.1.2 CHx Low
IEEE 32-bit (4-byte) floating-point numbers range in value from -3.402823E38 to -
1.401298E-45 for negative values and from 1.401298E-45 to 3.402823E38 for positive
values.
3.1.3 CHx High
IEEE 32-bit (4-byte) floating-point numbers range in value from -3.402823E38 to -
1.401298E-45 for negative values and from 1.401298E-45 to 3.402823E38 for positive
values.
These are user-defined scaling values to convert 4mA-20mA value to engineering units.
All values are provided as digitized values and scaled values in the module database and
are placed by the user if the Database Register (page 28) value is used.
For example, to disable these scaled values on all channels, enter a value of 0 (zero) for
the CH Low and CH High. You may also disable one at a time.
If you enter 0 to 1000, these will be scaled:
4.0mA will be scaled to a value of zero (0)
20.0 mA will be scaled to a value of 1000
and so on.