Vaisala HMT330 - Manual (Page 204)

User's Guide _______________________________________________________________________
202 __________________________________________________________________ M210566EN-K
use the floating point registers to write values outside this 16-bit signed
integer range. Maximum writable value is 32767 also for configuration
registers that do not accept negative values.
Measurement Data (Read-Only)
Table 41 Measurement Data Registers
Name Float Integer Unit
RH 0001…0002 0257 (×0.01) %
T 0003…0004 0258 (×0.01) °C
T
d
0007…0008 0260 (×0.01) °C
T
d/f
0009…0010 0261 (×0.01) °C
a 0015…0016 0264 (×0.01) g/m³
x 0017…0018 0265 (×0.01) g/kg
T
w
0019…0020 0266 (×0.01) °C
H
2
O 0021…0022 0267 (×1) ppm
V
p
w
0023…0024 0268 (×0.1) hPa
p
ws
0025…0026 0269 (×0.1) hPa
H 0027…0028 0270 (×0.01) kJ/kg
ΔT
0031…0032 0272 (×0.01) °C
H
2
O 0065…0066 0289 (×1) ppm
W
Available measurements depend on the instrument configuration. Values
may be unavailable also in case of device failure. Read status registers or
exception status outputs to check for failures.
NOTE Only real-time data can be read from the instrument. Data that is
recorded in the transmitter’s memory (internal memory or data logger
module) cannot be read through Modbus.
Status Registers (Read-Only)
Table 42 Status Registers
Name Address Description
Fault status 0513 1 = No errors
Online status 0514 1 = Online data available
Error code (bits 15…0) 0516 Bit field that represents the
error codes listed in Table 33
on page 152. Active errors are
set to 1. For example, if bit 14
is set to 1, error code E14 is
active.
Error code (bits 31…16) 0517
Error information can retrieved also with function code 08, sub-function
02.