Vaisala HUMICAP HMM170 - Test Value Registers; Device Identification Objects; Table 23 Modbus Test Registers (Read-Only); Table 24 Device Identification Objects

A.4.4 Test value registers
Read the known test values from the test registers to verify the functionality of your Modbus
implementation.
Table 23 Modbus test registers (read-only)
Register
number
Register
address
Register description Data
format
Test value
7937 1F00
hex
Signed integer test 16-bit
integer
-12345
7938 1F01
hex
Floating point test 32-bit
float
-123.45
1F02
hex
7940 1F03
hex
Text string test text Text string "-123.45"
1F04
hex
1F05
hex
1F06
hex
A.5 Device identification objects
Table 24 Device identification objects
Object ID Object ID
(hexadecimal)
Object name Example contents
0 00
hex
VendorName "Vaisala"
1 01
hex
ProductCode "HMM170"
2 02
hex
MajorMinorVersion "1.2.3"
Software version of the device.
3 03
hex
VendorUrl "http://www.vaisala.com/"
4 04
hex
ProductName "Vaisala HUMICAP(R) Humidity and
Temperature Module HMM170"
5 05
hex
ModelName "7E2A2A0A000"
Configuration code of the device. Length
and content of the code are model-
specific.
6 06
hex
UserApplicationName User definable information text (see
configuration register 0A00
hex
)
HMM170 User Guide M212259EN-D
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