MBMap Registry
  1. Devices
  2. Growatt
  3. MIN / MIC / MOD inverters

Growatt MIN / MIC / MOD inverters Modbus register map

Also covers TL-X, TL-XH, MOD TL3-XH

Single- and three-phase string inverters (TL-X, TL-XH, MOD TL3-XH) that use the 3000-range input registers of the Growatt protocol

  • Official
  • 71 registers
  • Modbus RTU
  • Revision 1 · 2026-11-10
  • Identity: firmware, serial number

Official: Written from the manufacturer's documentation, but not tested on a device yet. Check the map against the manufacturer's documentation before you write to a live device. Tested it? Report a test.

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Communication

Protocol
Modbus RTU
Unit ID
1
Serial
9600 8N1 · 9600 baud, 8 data bits, none parity, 1 stop bit
Byte / word order
ABCD · bytes big-endian, words high first
Addresses
0-based
Max read
125 registers per request

Connection values are defaults: the device may be configured differently.

Map

Registers
8 holding registers, 63 input registers
Groups
10
Revision
1 · 2026-11-10
Added
()
File
maps/growatt/min-mic-mod.mbmap.json · 13 KB · history
SHA-256
f12e2b26321523c890b677790686b98e56220d90f680717a965e446b5a541464
Manufacturer
growatt.com

Device identity

What a tool can read to check that this map fits the connected device (SPEC.md section 4.7). Registers with a role are read like any other register.

Registers
RoleRegisterAddressTypeValues
Firmware Firmware version holding 9 string[3]
Serial number Serial number holding 3001 string[15]

Sources and notes

  • Growatt Inverter Modbus RTU Protocol · version V1.24
    input registers 3000-3124 and holding registers 3000-3016 (section "Use for TL-X and TL-XH"), plus a few holding registers of the first group; linked in issue #186

Source: Growatt Inverter Modbus RTU Protocol V1.24

  • Difference from the TL3-X / MAX / MIX / SPH map: that map reads the first register group (input 0-124). This one reads the 3000-3124 group, which TL-X / TL-XH (MIN) and MOD TL3-XH inverters use for live data; the same quantities sit at different addresses (for example output power at 3023-3024 instead of 35-36) and the status register is split into a mode byte and a state byte.
  • The document lists MIN as TL-X / TL-XH / TL-XH US. It does not name MIC or MOD models separately, except MOD TL3-XH, which it gives the same 3000-3124 input range; MIC is assumed to belong to the same family.
  • Only the 3000-3124 input group is mapped. The document also describes 3125-3374 (storage and battery data of the TL-XH variants); those registers are not mapped here.
  • 32-bit values are sent high word first. Registers the document leaves without a unit or marks reserved (PV4 values, reactive power, the DCI and GFCI currents) are left out.
  • Meter-related registers (3041-3046, 3067-3078) only carry data when the inverter has a meter or CT connected.
  • Holding registers 0-124 follow the first group; only a few common ones are repeated here. The 03 range for these inverters is 0-124 and 3000-3124.
  • Default serial settings follow the first-group map: 9600 baud, 8N1, address range 1-254. The document for this group does not state them again.
  • Written from the manufacturer's document; not tested on a device.
AreaAddressNameTypeAccessUnitScaleDescription
IR 3000 uint16 bits 0–7 R Low byte: machine state shown on the web page
IR 3000 uint16 bits 8–15 R High byte: detailed operating mode
IR 3001 uint32 ABCD R W ×0.1
IR 3003 uint16 R V ×0.1
IR 3004 uint16 R A ×0.1
IR 3005 uint32 ABCD R W ×0.1
IR 3007 uint16 R V ×0.1
IR 3008 uint16 R A ×0.1
IR 3009 uint32 ABCD R W ×0.1
IR 3011 uint16 R V ×0.1
IR 3012 uint16 R A ×0.1
IR 3013 uint32 ABCD R W ×0.1
IR 3019 uint32 ABCD R W ×0.1
IR 3023 uint32 ABCD R W ×0.1
IR 3025 uint16 R Hz ×0.01
IR 3026 uint16 R V ×0.1 Phase voltage (the only phase on single-phase models)
IR 3027 uint16 R A ×0.1
IR 3028 uint32 ABCD R VA ×0.1
IR 3030 uint16 R V ×0.1 Phase voltage
IR 3031 uint16 R A ×0.1
IR 3032 uint32 ABCD R VA ×0.1
IR 3034 uint16 R V ×0.1 Phase voltage
IR 3035 uint16 R A ×0.1
IR 3036 uint32 ABCD R VA ×0.1
IR 3038 uint16 R V ×0.1
IR 3039 uint16 R V ×0.1
IR 3040 uint16 R V ×0.1
IR 3041 uint32 ABCD R W ×0.1 Needs a meter or CT
IR 3043 uint32 ABCD R W ×0.1 Needs a meter or CT
IR 3045 uint32 ABCD R W ×0.1 Needs a meter or CT
IR 3047 uint32 ABCD R s ×0.5
IR 3049 uint32 ABCD R kWh ×0.1
IR 3051 uint32 ABCD R kWh ×0.1
IR 3053 uint32 ABCD R kWh ×0.1
IR 3055 uint32 ABCD R kWh ×0.1
IR 3057 uint32 ABCD R kWh ×0.1
IR 3059 uint32 ABCD R kWh ×0.1
IR 3061 uint32 ABCD R kWh ×0.1
IR 3063 uint32 ABCD R kWh ×0.1
IR 3065 uint32 ABCD R kWh ×0.1
IR 3067 uint32 ABCD R kWh ×0.1 Needs a meter or CT
IR 3069 uint32 ABCD R kWh ×0.1 Needs a meter or CT
IR 3071 uint32 ABCD R kWh ×0.1 Needs a meter or CT
IR 3073 uint32 ABCD R kWh ×0.1 Needs a meter or CT
IR 3075 uint32 ABCD R kWh ×0.1 Needs a meter or CT
IR 3077 uint32 ABCD R kWh ×0.1 Needs a meter or CT
IR 3083 uint32 ABCD R kWh ×0.1
IR 3086 uint16 R
IR 3087 uint16 R kΩ
IR 3093 uint16 R °C ×0.1
IR 3094 uint16 R °C ×0.1
IR 3095 uint16 R °C ×0.1
IR 3097 uint16 R °C ×0.1
IR 3098 uint16 R V ×0.1
IR 3099 uint16 R V ×0.1
IR 3100 uint16 R 0-20000, raw value of the PF command
IR 3101 uint16 R %
IR 3102 uint32 ABCD R W ×0.1
IR 3105 uint16 R
IR 3106 uint16 R
IR 3107 uint16 R
IR 3108 uint16 R
IR 3115 uint16 R s
HR 0 uint16 RW
HR 3 uint16 RW % 0-100, or 255 for no limit
HR 9 string[3] R
HR 12 string[3] R
HR 30 uint16 RW
HR 3001 string[15] R 30 ASCII characters; older units keep it in registers 23-27 instead
HR 3000 uint16 RW % ×0.1 Power rate applied when the export limit function fails
HR 3016 uint16 RW

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