Fronius Smart Meter TS

Compatibility

Read-only Modbus through Datamanager 2.0

Fronius documents Smart Meter TS installation with Datamanager 2.0 and external access to its connected meter through Modbus TCP. The Datamanager, rather than the meter terminals, supplies the SunSpec register endpoint.

Best-effort monitoring of TS 100A-1, TS 65A-3 and TS 5kA-3 through an installed Datamanager 2.0. Record the installed model and software, compare readings locally and preserve existing inverter controls. Direct polling of the TS serial bus and other Smart Meter families are outside this procedure.

Connect it with

• 
  Modbus Interface ZMB-3X
  From €399 ex VAT Configure Modbus Interface
• 
  Gateway ZGW-20
  From €899 ex VAT Configure Gateway
• Evaluation Gateway on a Raspberry Pi Edge with one device licensed
  Free Set up Evaluation Gateway on a Raspberry Pi

Models

Specifications

Use the exact suffix to select the electrical connection. The two direct-connected models carry circuit current through the meter; the TS 5kA-3 receives current-transformer secondary signals. Transformer ratios and wiring errors affect the complete measurement chain.^1, 2, 3

TS 100A-1 input

Single phase: nominal 230 V, operating range 161 to 276 V; maximum direct current 100 A.³

TS 65A-3 input

Nominal 208 to 400 V, operating range 166.4 to 480 V; maximum direct current 65 A per phase.¹

TS 5kA-3 input

Nominal 400 to 480 V phase-phase or 230 to 277 V phase-neutral. CT secondary input 1 A or 5 A nominal, 6 A maximum. Current-output CTs are required; voltage-output sensors are excluded.²

TS 5kA-3 ratios

kCT and kVT settings each span 1 to 1000. The technical table limits kVT × kCT to 1000 for CT/5A. Check the complete transformer arrangement rather than multiplying the individual maxima.²

Serial connection

Electrically isolated, three-conductor RS485 with Modbus RTU. The Fronius setup specifies 9600 baud with no parity; the technical tables specify 8 data bits and 1 stop bit. Broader baud-rate and address ranges differ between menu and technical tables, so confirm the exact installed configuration.^1, 2, 3

Wiring and response

CAT5 or higher twisted-pair cable; documented inverter-to-meter cable length up to 300 m. Termination uses 120 ohms at the specified bus ends. Listed serial response time is at most 200 ms; this does not specify measurement freshness.^1, 2, 3

Fronius software

TS instructions specify Datamanager 2.0 from 3.16.1 and Symo Hybrid from 1.16.1. This procedure uses the Datamanager 2.0 TCP endpoint; check the commissioned meter in its local interface before polling.^1, 2, 3

Mounting and protection

35 mm DIN rail. TS 100A-1: 2 modules; TS 65A-3 and TS 5kA-3: 3 modules. Direct-connected models: IP51 housing; TS 5kA-3: IP54 housing. All three have IP20 connections.^1, 2, 3

Interface

Documented measurements and integration boundaries for Smart Meter TS.

• Datamanager maps serial meter addresses 1, 2, 3, 4 and 5 to TCP unit IDs 240, 241, 242, 243 and 244. Specify the unit ID even when only one meter is connected; the inverter uses a different device identity.
• The direct-connected models distinguish measurement mode A, which totals energy without direction, from mode B, which separates imported and exported energy. Preserve the installed mode and metering location when interpreting a series.
• Datamanager exposes integer SunSpec meter models 201, 202 or 203 with scale factors, or floating-point models 211, 212 or 213. Discover the model ID and length before applying its point offsets. Changing the data-type setting changes subsequent register addresses.
• Start with voltage, current, active power and imported/exported energy in the discovered meter model. Apply each integer point’s scale factor, or its floating-point unit, and compare with Fronius displays. At the grid location positive power means import and negative means export; the load-location convention differs.

Setup

1. Identify the circuit and exact meter

   Record the full model, serial number, firmware where available, system wiring and whether the meter is primary or secondary. Select direct or transformer measurement from the circuit requirements.

2. Preserve the Fronius system connection

   Record the inverter or Datamanager model, firmware, serial settings, meter address and termination. Do not add another polling master to a bus already operated by the Fronius system without an explicitly supported arrangement.

3. Verify the measurement configuration

   For TS 5kA-3, record CT and VT ratios, CT burden, polarity and phase matching. For every model, verify meter location and import/export interpretation against the display and a known circuit condition.

4. Enable Datamanager TCP monitoring

   In Datamanager Modbus settings select TCP data output and note the configured port, default 502. Leave inverter control via Modbus disabled and turn demo mode off, as demo mode returns fixed values without a connected device. Keep access on the protected site network.

5. Identify the meter and discover its map

   For meter serial address 1 use TCP unit ID 240. Read holding registers at raw address 40000 to confirm the SunS marker, then scan model IDs and lengths. Choose the discovered meter model 201/202/203 or 211/212/213, rather than an inverter model or a copied fixed power address.

6. Compare a live monitoring series

   Compare voltage and power with the Fronius display and verify direction under a known load. Check cumulative energy changes over a shared interval. Treat unavailable values as missing and test disconnection/recovery before relying on the series. Keep reset, export-limit and control commands outside this read-only setup.

Common questions

Can Edge poll a Smart Meter TS directly?

Use the documented Datamanager TCP route for a meter already connected to Fronius. The TS terminals remain an RS485 meter connection; this procedure leaves that bus under Fronius control. Direct serial polling needs the TS meter map and a separate bus arrangement.^{1, 2, 3, 4}

Can Datamanager SunSpec registers be used as the TS register map?

No. The Datamanager manual describes meter data exposed by the Datamanager over Modbus TCP. Its selected SunSpec model, meter identity and sign convention belong to that endpoint. They cannot be copied to the direct TS serial connection.⁴

Does TS 5kA-3 carry 5000 A through its terminals?

No. The meter uses current transformers with nominal 1 A or 5 A secondary outputs; its maximum current input is 6 A. The primary circuit rating depends on the selected transformers and their configured ratios.²

Does this guide establish billing accuracy or export control?

No. Select the applicable metrological approvals and complete measurement chain for any billing use. This guide covers operational monitoring requirements and includes no export-limit, inverter-control or reset operations.^1, 2, 3