Gateway General Functionality - HMS Networks Intesis IN770AIR00XO000 User Manual

Gateway General Functionality

Hitachi VRF with KNX, Serial and IP support
4.3. Gateway General Functionality
With this Intesis IN770AIR00xO000 gateway, you can easily integrate Hitachi air conditioning (AC) systems into an
installation based on Modbus TCP, Modbus RTU, KNX, BACnet/IP, BACnet MS/TP, or Home Automation. To do so,
the gateway acts as a server device of the installation itself, accessing all signals from each air conditioner unit
and controlling the whole AC network.
The gateway is continuously polling the AC network, storing in its memory the current status of every signal
you want to track and serving this data to the installation when requested. Also, when a signal status changes,
the gateway sends a write telegram to the installation, waits for the response, and performs the corresponding
action.
A lack of response from a signal activates a communication error, allowing you to know which signal from which
AC unit is not correctly working.
USER MANUAL Version 1.0.0 Page 7 of 37