Rockwell Automation 1756-OF8H ControlLogix HART Analog I/O Modules - Manual (Page 213)

Rockwell Automation Publication 1756-UM533C-EN-P - February 2011 213
Appendix
E
Engineering Unit Code Numbers
Code Number Details This table maps engineering unit code numbers to their meaning and
abbreviations. These codes are used in the process variable range display.
Unit Codes Description from HART Specification Abbreviated Units
1 inches of water at 20 °C (68 °F) inH2O (20 °C or 68 °F)
2 inches of mercury at 0 °C (32 °F) inHg (0 °C or 32 °F)
3 feet of water at 20 °C (68 °F) ftH2O (20 °C or 68 °F)
4 millimeters of water at 20 °C (68 °F) mmH2O (20 °C or 68 °F)
5 millimeters of mercury at 0 °C (32 °FC mmHg (0 °C or 32 °F)
6 pounds per square inch psi
7 bars bar
8 millibars mbar
9 grams per square centimeter g/square cm
10 kilograms per square centimeter kg/square cm
11 pascals Pa
12 kilopascals kPa
13 torr torr
14 atmospheres atm
15 cubic feet per minute cubic ft/min
16 gallons per minute usg/min
17 liters per minute L/min
18 imperial gallons per minute impgal/min
19 cubic meter per hour cubic m/h
20 feet per second ft/s
21 meters per second m/s
22 gallons per second usg/s
23 million gallons per day million usg/d
24 liters per second L/s
25 million liters per day ML/day
26 cubic feet per second cubic ft/s
27 cubic feet per day cubic ft/d
28 cubic meters per second cubic m/s
29 cubic meters per day cubic m/d
30 imperial gallons per hour impgal/h