ABB 266 MODBUS User Manual page 95

Register Address
Data
Type
32 bit 16 bit
405 – 406
23 F
407 – 408
24 F
409 – 410
25 F
411 – 412
26 U32
413 – 414
27 U32
415 – 416
28 U32
441 – 442
41 F
443 – 444
42 F
445 – 446
43 F
447 – 448
44 F
449 – 450
45 U16
451 – 452
46 F
453 – 454
47 F
455 – 456
48 U16
49 – 50 457 – 460
461 – 462
51 F
Object description
Process Temperature (Damping, Calibration and Units applied) floating point, 405
is high word, 406 is low word.
This may be external RTD or sensor value depending on configuration
Mass flow rate value
Volume Flow rate value
Diagnostic status flag words 1 and 2
Diagnostic status flag words 3 and 4
Diagnostic status flag words 5 and 6
DP calibration high point (span) Default URL.
See 481 for unit of value
DP calibration low point (offset). Default LRL.
See 481 for unit of value
SP calibration high point (span) Default URL.
See 482 for unit of value
SP calibration low point (offset). Default LRL.
See 482 for unit of value
Calibration Unit Pressure
Register 449 is not a register, and it returns zero when read, and does nothing
when written.
Register 450
Default (65535) reads as register 481 until it is written.
Values:
1 = Inches H2O 4C
2 = Inches HG 0C
3 = Feet H2O_68F
4 = Millimeter H2O_68F
5 = Millimeter HG 0C
6 = PSI
7 = BAR
8 = Millibar
9 = Gram per square centimeter
10 = Kilogram per square centimeter
11 = Pascal
12 = Kilopascal
13 = Torr
14 = Atmosphere
117 = Megapascal
16 = Inches H2O 60F
17 = Inches H2O 68F
Default 65535 reverts back to using 481 unit
T calibration high point (span) default URL.
See 483 for unit of value
T calibration low point (offset) default 0 °C.
See 483 for unit of value
Calibration Unit Temperature
Register 455 is not a register, and it returns zero when read, and does nothing
when written.
Register 456
Default (65535) reads as register 483 until it is written.
Values:
32 = Degree Celsius
33 = Degree Fahrenheit
34 = Degree Rankine
35 = Degree Kelvin
65535 Default reverts back to using 483 unit
RESERVED un-implemented registers
All access returns an ILLEGAL FUNCTION error code.
DP Damping time constant (Default 0.0 = disabled)
Appendix C MODBUS® register lists
266 MODBUS® multivariable transmitter User manual 2105216 Rev. AB | 87
Read/ Added
Write Ext.
RO
RO
RO
RO
RO
RO
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
NONE
R/W