Owner manual
HART Command Data Table Layouts
Appendix A
A-4
Use this command to read the primary variable and unit code from a
HART field device. The primary variable is returned in floating-point
format and the unit code is returned as an integer.
Standard
Inputs
Integer Word 0 I/O Rack Number of 1770HT1
Word 1 I/O Group Number of 1770HT1
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 1
Commandspecific
Inputs
Integer Words 6 8 HART Address of HART field device
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 1 9858 269 12807 0
N10:10 0 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 is the HART address that is returned
from HART Command 0 (see page A3).
These six integer words are the
standard inputs that are required for
each HART command (see page 33).
HART Command 1
Read Primary Variable