Owner manual

HART Command Data Table Layouts
Appendix A
A-6
Use this command to read the primary variable current and up to four
predefined dynamic variables from the HART field device.
The primary variable current always matches the analog output current
of the device including alarm conditions and set values.
The secondary, tertiary, and 4th variables are defined by each device
type. For example, the secondary variable is the sensor temperature for
the 3051 pressure transmitter.
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 3
Commandspecific 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 3 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
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 3
Read Dynamic V ariables & Primary
V ariable Current