Status Registers (Read-Only); Configuration Registers; Table 43 Hmw90 Modbus Status Registers; Table 44 Hmw90 Modbus Configuration Parameter Registers - Vaisala HUMICAP HMW90 SERIES User Manual

User's Guide _______________________________________________________________________
NOTE
Name Metric float
Pressure 0777...0779 1029 (×1) 700...1100 hPa 7177...7179 7429 (×1)
Elevation 0779...0780 1030 (×1) -700...2300 m
106 __________________________________________________________________ M211399EN-F

Status Registers (Read-Only)

Table 43 HMW90 Modbus Status Registers
Name
Error code (bits 15...0)

Configuration Registers

Configuration parameter registers are used to configure the measurement.
Writing out-of-range values is silently ignored.
Elevation is linked to pressure according to the following equation:
p = 101325 (1 - 2.25577 10
where p is pressure in Pa and h is altitude above sea level in m. This
means that changing altitude will also change pressure and vice versa.
Table 44 HMW90 Modbus Configuration Parameter Registers
Metric Metric unit &
integer valid range
Address Description
0513,6913 0 = no errors
-5 5.25588
h)
Non-metric Non-metric
float integer
7179...7180 7430 (×1)
Non-metric unit
& valid range
700 ... 1100 hPa
-2300 ... 10000 ft