Novus RHT Climate-DM Series, Инструкция по эксплуатации

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10 SERIAL COMMUNICATION
The RHT
Climate
Transmitter can be recognized on an RS485 network with MODBUS RTU protocol as a slave device. All of the controller’s
configurable parameters can be read and/or written via serial communication. Writing to Registers in broadcast mode is also allowed, using address 0 .
The available Modbus commands are as follows:
03 – Read Holding Register
05 – Write Single Coil
06 – Write Single Register
16 – Write Multiple Registers
10.1 TABLE OF HOLDING REGISTER TYPE REGISTERS
SI US
PRIMARY CYCLE INDICATION REGISTERS
Address Description R/W Min. Max. Default Min. Max. Default
0
Relative humidity value RO 0 10000 - 0 10000 -
1
2
Dry bulb temperature value RO -4000 10000 - -4000 21200 -
3
4
Wet bulb temperature value RO -4000 10000 - -4000 21200 -
5
6
Dew point value RO -9000 10000 - -13000 21200 -
7
8
Frost point value RO -9000 10000 - -13000 21200 -
9
10
Specific enthalpy value RO -4000
70000000
*
- -1800
30094500
*
-
11
12
Absolute humidity value RO 0 60000 - 0 26200 -
13
14
Partial vapor pressure value RO 0 103500 - 0 1500 -
15
16
Mixture ratio value RO 0
26000000
*
- 0
182000000
*
-
17
18
Minimum humidity value RO 0 1000 - 0 1000 -
19
20
Maximum humidity value RO 0 1000 - 0 1000 -
21
22
Minimum temperature value RO -4000 1000 - -4000 2120 -
23
24
Maximum temperature value RO -4000 1000 - -4000 2120 -
25
26
Minimum dew point value RO -9000 1000 - -13000 2120 -
27
28
Maximum dew point value RO -9000 1000 - -13000 2120 -
29
Table 51 – Primary cycle indication registers
*
For firmware version less than or equal to 1.10, the maximum enthalpy value is 32767 and the maximum mix ratio value is 65535.