IN770AIR00SO000 – Universal AC Interface to KNX/Modbus/BACnet
IN770AIR00SO000 is Universal AC Interface. Control up to 16 indoor units via KNX, Modbus or BACnet. Ethernet, ASCII, MAPS, auto-scan.
- Stock: 5-7 days
- Brand: Intesis
- Model: IN770AIR00SO000
Full design package: User manual, CE declaration, CAD, PDF, certificates and test reports
If you're preparing technical documentation or an installation design, you can receive a complete set of design materials for this model. This is a quick way to gather the required documents for audits, acceptance, or project documentation.
- Device User Manual
- CE Declaration of Conformity (EU Declaration of Conformity)
- Mechanical Drawings – CAD (STEP/DWG) or high-quality PDF
- Additional Certificates and Test Reports (if available for the model)
Universal AC (Hisense, Hitachi, Midea, Mitsubishi Electric, Panasonic or Samsung) to KNX/Modbus/BACnet AC Interface with Serial and IP Support.
The IN770AIR00SO000 interface enables seamless integration of Hisense, Hitachi, Midea, Mitsubishi Electric, Panasonic or Samsung with major building automation platforms via KNX, Modbus RTU/TCP, and BACnet IP. Supporting up to 16 indoor units and 16 outdoor units, this multi-brand HVAC gateway offers unparalleled compatibility for industrial, commercial, and residential automation scenarios.
What the “Small” license of IN770AIR00SO000 means in practice
Within the IN770AIR***O000 family, several license capacities are available. The IN770AIR00SO000 corresponds to the Small license, designed for installations with up to 16 indoor units (IU) and 16 outdoor units (OU). This distinction is critical during system design, as larger projects may require Medium or Large variants to avoid capacity limitations at a later expansion stage.
Designed for flexibility, the gateway provides bidirectional control and monitoring over the AC system’s most relevant variables: temperature setpoints, fan speeds, operating modes, alarm states, and energy consumption values for each indoor unit. It grants direct access to the VRF system’s outdoor bus, making integration cleaner, faster, and less error-prone.
How data exchange works on the BMS side
From a BMS perspective, IN770AIR00SO000 operates as a communication server. It continuously polls the VRF network, caches live HVAC values internally, and exposes them to KNX objects, Modbus registers, or BACnet objects. When a value changes, the gateway pushes updates to the BMS. If a request times out or a unit stops responding, a communication error can be generated, allowing quick identification of the affected unit and signal.
A key feature is the automatic unit scan, which detects all indoor and outdoor units present on the AC VRF network, eliminating the need for manual address mapping. Once scanned, each unit is mapped to KNX Group Objects, Modbus registers, or BACnet objects according to the selected protocol, enabling full interoperability with SCADA systems, PLCs, or home automation hubs.
Central Controller role and VRF bus constraints
In addition to its multi-protocol capabilities, the gateway also acts as a Central Controller on the manufacturer’s native VRF bus. Most VRF systems allow only one Central Controller on the bus. Therefore, IN770AIR00SO000 must be the only device performing this role unless an XYE Extension Kit is used. This prevents data collisions and guarantees deterministic read/write access to system parameters.
The supported functionality varies slightly depending on the AC brand. The gateway automatically adapts communication timing, addressing, and terminal usage based on the detected manufacturer, ensuring stable operation regardless of whether the system uses H-Link, P-Link, F1/F2, or proprietary centralized controllers.
Brand-specific capacity & connection
- Bosch: up to 16 indoor units — connected via XYE terminals
- Daikin: up to 16 indoor units and 10 outdoor units — connected via F1/F2 terminals
- Hisense: up to 16 indoor units and 16 outdoor units — connected via AB (H-Link) bus
- Hitachi: up to 16 indoor units and 16 outdoor units — connected via AB (H-Link) bus
- Midea: up to 16 indoor units — connected via XYE terminals
- Mitsubishi Electric: support for up to 50 groups — connected via Mitsubishi Electric Centralized Controller
- Panasonic: up to 16 indoor units and 16 outdoor units — connected via U1/U2 (P-Link)
- Samsung: up to 16 indoor units and 16 outdoor units — connected via R1/R2 terminals
IP commissioning and default network behavior
When powered up for the first time (or after a factory reset), the gateway briefly enables DHCP. If no address is assigned, it automatically falls back to the default IP 192.168.100.246. In segmented networks (VLAN, ACL, NAT), ensure that BACnet/IP or Modbus TCP ports are not blocked and that broadcast or unicast traffic is permitted according to the chosen protocol.
Communication over IP is handled via the integrated Ethernet 10/100 Mbps port, while local commissioning and firmware updates are performed through the USB console. Configuration is carried out using Intesis MAPS, which provides object mapping, CSV import/export, and real-time diagnostic views.
Key features
- UL Listed, CE certified – suitable for commercial and industrial installations
- Multi-protocol support: KNX TP, Modbus RTU/TCP, BACnet IP
- Control and monitoring of up to 16 indoor and 16 outdoor units
- Direct access to VRF communication bus
- Automatic unit scan for fast commissioning
- Energy consumption data available per unit
- Acts as native Central Controller (parallel operation via XYE Extension Kit only)
- Open ASCII protocol for IP-based automation systems
- Compatible with Home Assistant, Domoticz, and similar platforms
- Configuration via Ethernet or USB console
- Intesis MAPS support: firmware updates, diagnostics, live monitoring
Specifications
Protocols supported:
- KNX TP1
- Modbus TCP and RTU
- BACnet/IP (standard B-ASC profile)
- ASCII over IP
Hardware interface:
- Ethernet 10/100 Mbps (RJ45)
- RS485 terminal for Modbus RTU
- KNX TP1 2-pole terminal
- Mini USB console port
Power supply:
- 12–36 VDC ±10%, max. 250 mA
- 24 VAC ±10%, max. 127 mA
- Recommended: 24 VDC
Environmental conditions:
- Operating temperature: 0 °C to +60 °C
- Humidity: 5 % to 95 %, non-condensing
Typical questions from BMS and HVAC integrators.
?How many indoor and outdoor units can IN770AIR00SO000 handle?▾
The Small license of IN770AIR00SO000 supports up to 16 indoor units and 16 outdoor units connected to the VRF system.
?What is the default IP address if DHCP is not available?▾
If no DHCP address is assigned during startup, the gateway falls back to the default IP address 192.168.100.246.
?Can another Central Controller operate in parallel?▾
No. The VRF bus allows only one Central Controller. Parallel operation is possible only when using the XYE Extension Kit.
?Which protocols can be active simultaneously?▾
IP-based protocols such as BACnet/IP and Modbus TCP can operate simultaneously, while serial protocols require dedicated configuration.
?How are communication issues typically diagnosed?▾
Diagnostics are performed in Intesis MAPS by checking VRF activity, protocol traffic, and object updates. Most issues are related to wiring, addressing, or network filtering.
Warranty: 36 months
