Available Applications; Integration Into Modbus Systems; Modbus Registers - HMS Networks Intesis IN770AIR00XO000 User Manual

Available Applications

6. Available Applications
NOTE
Signals marked as Optional signals are supported by the gateway but may not be supported by the
server devices of the installation. Please refer to the technical documentation of each server device
to know which signals they support.

6.1. Integration into Modbus Systems

6.1.1. Modbus Registers

NOTICE
This part is common for Modbus RTU and TCP.
Functions to read Modbus registers:
• 03 Read Holding Registers.
• 04 Read Input Registers.
Function to write Modbus registers:
• 06 Single Holding Registers.
Modbus register contents are expressed in most significant bit (MSB) .. less significant bit (LSB).
The following tables list all available Modbus registers for the gateway.
NOTICE
Read/write parameter terminology:
• R: Read-only register.
• W: Write-only register.
• RW: Read and write register.
Table 2. Global registers
Register name
On (all units)
Off (all units)
Operation Mode Auto (all the units)
Operation Mode Heat (all the units)
Operation Mode Dry (all the units)
Operation Mode Fan (all the units)
Operation Mode Cool (all the units)
Fan Speed Auto (all the units)
Fan Speed Low (all the units)
Fan Speed Mid (all the units)
Fan Speed High (all the units)
USER MANUAL Version 1.0.6
Possible values
1: Set the units On
1: Set the units Off
1: Set Auto Mode
1: Set Heat Mode
1: Set Dry Mode
1: Set Fan Mode
1: Set Cool Mode
1: Set Fan Speed Auto
1: Set Fan Speed Low
1: Set Fan Speed Mid
1: Set Fan Speed High
Hitachi VRF with KNX, Serial and IP support
Modbus address R/W
0 Trigger
1 Trigger
2 Trigger
3 Trigger
4 Trigger
5 Trigger
6 Trigger
7 Trigger
8 Trigger
9 Trigger
10 Trigger
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