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AC & VRF gateways Modbus register maps

Updated 29 October 2026

12 ac & vrf gateways register maps from 1 manufacturer: Intesis (HMS Networks).

• Heat pump gateway (VRF / split AC gateway)

  Intesis (HMS Networks) IN485MIT001A000 Mitsubishi Electric Ecodan air-to-water to Modbus RTU / BACnet MS/TP gateway

  Intesis (HMS Networks) IN485MIT001A000 gateway on the CN105 socket of Mitsubishi Electric Ecodan air-to-water heat pumps, set to Modbus RTU, per user manual version 1.0.3 (2025-12-02).

  77 registers · 25 writable · RTU
  Also known as: IN485MIT001A000, Ecodan Modbus, Mitsubishi Ecodan Modbus RTU, Intesis Ecodan, HMS Ecodan gateway
• VRF / split AC gateway

  Intesis (HMS Networks) INMBSDAI001I000 Daikin domestic AC to Modbus RTU gateway

  Single Daikin domestic (S21-connector) indoor unit via INMBSDAI001I000, user manual v1.0.2.

  50 registers · 24 writable · RTU
  Also known as: INMBSDAI001I000, Intesis Daikin domestic Modbus
• VRF / split AC gateway

  Intesis (HMS Networks) INMBSDAI001R000 Daikin VRV / Sky Air to Modbus RTU gateway

  One Daikin VRV or Sky Air indoor unit (or group) on the P1P2 bus via INMBSDAI001R000, user manual v1.0.1.

  25 registers · 14 writable · RTU
  Also known as: INMBSDAI001R000, Intesis Daikin VRV Modbus
• VRF / split AC gateway

  Intesis (HMS Networks) INMBSFGL001I000 Fujitsu domestic AC to Modbus RTU gateway

  One Fujitsu domestic (RAC) or compatible VRF indoor unit, connected to the CN65/CN12/CN6 socket on the indoor board via INMBSFGL001I000, user manual v1.5 (01/2024).

  35 registers · 18 writable · RTU
  Also known as: INMBSFGL001I000, FJ-AC-MBS-1, Intesis Fujitsu domestic Modbus
• VRF / split AC gateway

  Intesis (HMS Networks) INMBSFGL001R000 Fujitsu AC to Modbus RTU gateway

  One Fujitsu indoor unit, or a group of up to 16 controlled together as one, on the 3-wire BWR remote-controller bus via INMBSFGL001R000, user manual v2.4 (02/2025).

  32 registers · 16 writable · RTU
  Also known as: INMBSFGL001R000, Intesis Fujitsu Modbus
• VRF / split AC gateway

  Intesis (HMS Networks) INMBSHIT001R000 Hitachi AC to Modbus RTU gateway

  Intesis (HMS Networks) INMBSHIT001R000 interface on the AB bus of one Hitachi commercial-line indoor unit (or group), per user manual v1.6 (01/2024).

  30 registers · 15 writable · RTU
  Also known as: INMBSHIT001R000, Hitachi Modbus gateway, Intesis Hitachi
• VRF / split AC gateway

  Intesis (HMS Networks) INMBSLGE001R000 LG AC to Modbus RTU gateway

  One LG indoor unit on the BYR (wired remote) bus via INMBSLGE001R000 (legacy code LG-RC-MBS-1), user manual v1.9 (01/2024).

  32 registers · 17 writable · RTU
  Also known as: INMBSLGE001R000, LG-RC-MBS-1, Intesis LG Modbus
• VRF / split AC gateway

  Intesis (HMS Networks) INMBSMHI001R000 Mitsubishi Heavy Industries AC to Modbus RTU gateway

  Mitsubishi Heavy Industries indoor units (one, or up to 16 controlled together as one) on the XY remote-controller bus, user manual r6.4 (01/2024).

  33 registers · 16 writable · RTU
  Also known as: INMBSMHI001R000, MH-RC-MBS-1, Intesis Mitsubishi Heavy Industries Modbus, Intesis MHI Modbus
• VRF / split AC gateway

  Intesis (HMS Networks) INMBSMIT001I000 Mitsubishi Electric AC to Modbus RTU gateway

  One Mitsubishi Electric Domestic, Mr. Slim or City Multi indoor unit via INMBSMIT001I000, user manual r2.8 (11/2024).

  21 registers · 12 writable · RTU
  Also known as: INMBSMIT001I000, Intesis Mitsubishi Electric Modbus
• Heat pump gateway (VRF / split AC gateway)

  Intesis (HMS Networks) INMBSPAN001A100 Panasonic Aquarea H/J/K/L/M air-to-water to Modbus RTU gateway

  Intesis (HMS Networks) INMBSPAN001A100 gateway connected to Panasonic Aquarea H, J, K, L and M series air-to-water heat pumps, per user manual version 1.0.2 (2026-02-04).

  51 registers · 18 writable · RTU
  Also known as: INMBSPAN001A100, Aquarea Modbus, Panasonic Aquarea Modbus RTU, Intesis Aquarea, INMBSPAN001A000 (legacy order code)
• VRF / split AC gateway

  Intesis (HMS Networks) INMBSPAN001R000 Panasonic AC to Modbus RTU gateway

  Panasonic / Sanyo ECOi and PACi indoor units (one, or up to 16 controlled together as one) on the R1R2 remote-controller bus, user manual v2.8 (09/2025).

  46 registers · 16 writable · RTU
  Also known as: INMBSPAN001R000, PA-RC2-MBS-1, Intesis Panasonic Modbus, Intesis Sanyo Modbus
• VRF / split AC gateway

  Intesis (HMS Networks) INMBSTOS001R000 Toshiba AC to Modbus RTU gateway

  Toshiba Digital Inverter (RAV) and VRF indoor units on the AB remote bus via INMBSTOS001R0xx, user manual r2.9 (01/2024).

  36 registers · 13 writable · RTU
  Also known as: INMBSTOS001R000, INMBSTOS001R0xx, Intesis Toshiba Modbus

AC & VRF gateways: default communication settings

Factory defaults as the manufacturer documents them. Change one setting at a time on site and write down what you changed. Word order applies to 32-bit values; the addressing column says how the manufacturer prints register numbers (every map on this site also gives the 0-based wire address).