Growatt MIN 2.5-6KTL-XH2

Compatibility

Monitoring and VPP port roles documented; protocol unverified

The exact-family manual defines physical port roles; Growatt-authored VPP V2.03 defines Modbus RTU identity and telemetry for this model family. The actual endpoint and a local comparison remain installation tasks.

MIN 2500TL-XH2 through MIN 6000TL-XH2 in the RJ45 manual only. Capture the exact rating, firmware, country grid code, battery, meter, logger and port occupancy. The earlier MIN-XH, MIN-XH2 US and MOD/MID XH families have different electrical and interface scopes.

Models

Specifications

Growatt's RJ45 manual names seven MIN-XH2 ratings from 2.5 through 6 kW, a single-phase 230 V grid connection, two MPPTs with one PV string each, 16 A maximum input per tracker and an IP66 enclosure. The July 2026 family datasheet and product page corroborate the battery-ready and dual-MPPT positioning. Battery readiness does not mean an installed battery or backup system.^1, 2, 3

Exact family

MIN 2500, 3000, 3600, 4200, 4600, 5000 and 6000TL-XH2¹

Rated AC output

2.5, 3, 3.6, 4.2, 4.6, 5 and 6 kW respectively; single phase, nominal 230 V¹

PV inputs

Two MPPTs, one string per tracker, 16 A maximum input and 24 A maximum short-circuit current per tracker^1, 3

SYN monitoring pair

RJ45 pins 3/6: RS485A2/B2 for Min ShineBus, third-party monitoring equipment or Backup Box¹

VPP-labelled pair

RS485 RJ45 pins 1/2: RS485A3/B3; VPP protocol communication label, command contract not supplied¹

Meter pair

Meter RJ45 pins 5/4: RS485A1/B1 for the commissioned energy meter¹

CT input

COM or RS485 RJ45 pins 4/5; manual notes a 100 A/40 mA CT ratio¹

Optional monitoring

USB-A ShineWiLan-X2, ShineLink-X2 or Shine4G-X accessories^1, 3

Enclosure

375 × 350 × 160 mm, 10.8 kg, IP66¹

Interface

Documented measurements and integration boundaries for MIN 2.5-6KTL-XH2.

• FC03 holding 30000: equipment type 5100; holding 30099: protocol version. FC04 input 31100/31101: signed active power at 0.1 W; input 31105: grid frequency at 0.01 Hz. Input 31000 supplies working state and 31005/31007 fault/alarm codes.
• RS485 RJ45 pins 1/2 are RS485A3/B3, explicitly labelled for VPP protocol communication. Growatt VPP V2.03 lists MIN-XH2 and provides the read map used below; the SYN monitoring pair is a separate port.
• Meter RJ45 pins 4/5 are RS485B1/A1 for the energy meter. The manual's CT connections are on COM or RS485 pins 4/5, with a 100 A/40 mA CT ratio note. They are not spare telemetry or VPP inputs.
• The battery communication port and the USB-A ShineWiLan-X2/ShineLink-X2/Shine4G-X logger path are distinct. A logger's LAN connection does not establish a local inverter Modbus TCP server or open data API.
• The European DRMS RJ45 function is described as a Power Control Interface with a 5 V input limit. It is a commissioned power-control function, not a generic software write channel. Preserve regional protection and export settings.

Setup

1. Trace the monitoring and VPP ports

   Trace the six labelled RJ45 ports physically. SYN pins 3/6 are the documented third-party monitoring pair; RS485 pins 1/2 carry the VPP protocol label. Keep the meter, battery and CT wiring in their commissioned roles.

2. Read identity, power and frequency

   Growatt VPP V2.03 (1 September 2025), Tables 2.1/2.2 and Annex 3-1, is the best-effort starting map. Use the installed serial address and baud rate with 8N1. FC03 holding address 30000 identifies the equipment type; 30099 identifies the protocol version (203 means V2.03). These are wire addresses: add one only if your client uses one-based register numbers. Read power with FC04 input address 31100, two words: PDU 04 79 7C 00 02, excluding slave address and CRC. Decode high-word-first signed INT32 and multiply by 0.1 W. Synthetic bytes 00 01 E2 40 give 12345.6 W; FF FF FF 9C give -10 W. The map defines positive active power as export and negative as import. Read frequency at input address 31105 as UINT16 × 0.01 Hz: 13 88 gives 50 Hz. Compare with simultaneous local monitoring before using the values.

3. Preserve the commissioned system

   Use the commissioned inverter or logger endpoint. The protocol says VPP authority register 30100 must be enabled; have the installer confirm its existing configuration without exploratory writes. Keep occupied meter, battery, parallel and backup buses intact. This procedure supplies monitoring reads, not an Edge-tested import or permission to dispatch.

4. Check the VPP endpoint configuration

   Use the commissioned inverter or logger endpoint. The protocol says VPP authority register 30100 must be enabled; have the installer confirm its existing configuration without exploratory writes. Keep occupied meter, battery, parallel and backup buses intact. This procedure supplies monitoring reads, not an Edge-tested import or permission to dispatch.

Common questions

Can Edge read a MIN-XH2 directly from the SYN port?

The published VPP map supplies a useful Modbus RTU starting point for this exact family. Use the visible read procedure and a commissioned endpoint; keep the separate meter, battery and backup pairs in their assigned roles. No Edge field-test result is claimed.^1, 4

Does the VPP-labelled RS485 port make this inverter dispatch-ready?

Growatt VPP V2.03 now supplies a public data and command specification for this family. The read procedure below uses identity and telemetry only. Dispatch still requires the commissioned authority, constraints and control design; this guide does not authorize control writes.^1, 4

Is the USB ShineWiLan-X2 LAN connection a Modbus TCP endpoint?

The manual lists ShineWiLan-X2 as an optional USB monitoring accessory. Neither the RJ45 manual nor the family product page establishes a local third-party Modbus TCP service on that logger.^1, 3