Vaisala HUMICAP HMP4, Руководство пользователя

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Object Id
(decimal) Object Id
(hexadecimal) Object Name Example Contents
2 02
hex
MajorMinorVersion Software version (for example
“1.2.3”)
3 03
hex
VendorUrl “http://www.vaisala.com/”
4 04
hex
ProductName "Humidity and Temperature Probe
HMP4"
5 05
hex
ModelName Configuration code
6 06
hex
UserApplicationName User definable information text (see
configration register 0A00
hex
)
128 80
hex
SerialNumber Serial number of the device (for
example “K0710040”)
129 81
hex
Calibration date Date of the factory calibration
130 82
hex
Calibration text Information text of the factory
calibration
A.4.4 Test Value Registers
Read the known test values from the test registers to verify the functionality of your Modbus
implementation.
Table 40 Modbus Test Registers (Read-Only)
Address
(Decimal) Address
(Hexadecimal) 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
7940 1F03
hex
Text string test text Text string
"-123.45"
Appendix A – Modbus Reference
53