Owner manual

HART Command Data Table Layouts
Appendix A
A-14
Use this command to select the units in which the primary variable and the
primary variable range will be returned by the HART field device. This
command also selects the units for sensor limits and minimum span.
Standard Inputs
Integer Word 0 I/O Rack Number of 1770HT1
Word 1 I/O Group Number of 1770HT1
Word 2 Channel Number of HART field device
Word 3 Polling Address of HART field device
Word 4 Smart Transmitter Interface Command Number 16 (decimal)
Word 5 HART Command Number 44
Commandspecific Inputs
Integer Words 6  8 HART Address from HART Command 0
Word 10 Primary Variable Unit Code
Data Table Report PLC-5/25 Addr 31 Data Table File N10:0
Address 0 1 2 3 4 5 6 7 8 9
N10:0 4 6 3 0 16 44 9858 269 12807 0
N10:10 32 0 0 0 0 0 0 0 0 0
N10:20 0 0 0 0 0 0 0 0 0 0
N10:30 0 0 0 0 0 0 0 0 0 0
N10:40 0 0 0 0 0 0 0 0 0 0
N10:50 0 0 0 0 0 0 0 0 0 0
This integer word is a commandspecific
input that contains the (new) unit code for
the primary variable (see page B5).
These six integer words are the standard inputs that
are required for each HART command (see page 33).
This is the HART address that is returned
from HART Command 0 (see page A3).
HART Command 44
Write Primary V ariable Units