// ModbusManager Pro — ebm-papst EC fans

Modbus HMI for
ebm-papst EC fans

Monitor and control a whole bank of ebm-papst EC fans over Modbus RTU on one live dashboard — speed, motor status and power for every fan, without a BMS or a SCADA project. Download the free 16-fan demo workspace, open it in ModbusManager Pro, and explore it with the built-in simulator or your real fans. The same dashboard works with any Modbus device.

Download free demo workspace Download Pro trial

Demo: 16-fan Pro workspace · runs on the built-in simulator or real fans · Modbus RTU

// what the demo shows

16 EC fans on one screen

ebm-papst EC fans ship with Modbus RTU built in — every fan reports its actual speed, motor status, power draw and module temperature, and accepts a speed setpoint. This demo turns a bank of sixteen such fans into a single operator dashboard.

ModbusManager Pro polls all 16 fans, and a small Structured Text script flags each fan green when its status word is healthy (0) and red on any fault. Speed shows on a fan widget, power as a live value, status on a lamp — sixteen times over, on one page.

No building-management system, no SCADA server, no per-point licensing. One PC on the RS-485 line — or the built-in simulator if you have no fans on the bench yet.

Data flow

16 × ebm-papst EC fan (Modbus RTU, 19200 8E1) → USB–RS485 adapter → ModbusManager Pro dashboard on Windows. Up to 247 fans on one bus.

Dashboard shows (per fan)
  • 🌀 Actual speed — fan widget (%)
  • 📊 Current power draw (W)
  • 💡 Motor-status lamp (green = OK)
  • 🏷 Fan label & slave address
// download the demo

Free 16-fan demo workspace

One download: a ready-made ModbusManager Pro workspace with sixteen fans pre-mapped to the ebm-papst register layout, the motor-status script, and a finished dashboard page. Open it, point it at the simulator or your fans, and you have a live fan wall.

📊
16-fan workspace
Sixteen poll windows (one slave each), tags for speed, status and power, and a dashboard page with a fan widget, power value and status lamp per fan.
📜
Status script
A Structured Text loop that turns each fan’s status word into a clean OK / fault flag driving the lamps — an example of Pro’s tag engine.
📖
README
Register map, RS-485 bus settings, how to load the workspace, and how to run it against the built-in simulator or real fans.
Download demo workspace (.zip) Just the .json

Needs ModbusManager Pro (14-day trial works). No hardware required — the built-in slave simulator can stand in for the fans.

// how to run it

Four steps to a live fan wall

Step 1
Open the workspace
In ModbusManager Pro, open the demo workspace. It loads sixteen poll windows, the tags, the motor-status script and the dashboard page — all pre-configured.
Step 2
Pick a source
No fans yet? The workspace ships with sixteen simulated slave devices — start the built-in simulator and drive the speed registers. Have real fans? Wire them on RS-485 and skip the simulator.
Step 3
Connect
Connect over Modbus RTU (19200, 8E1) through your USB–RS485 adapter, or to the local simulator. Each fan is one slave address — 1 to 16 in the demo.
Step 4
Run it
Start the script loop and switch the dashboard to Runtime. Speed, power and the status lamps update live across all sixteen fans at once.
// register map

What each fan exposes

ebm-papst uses decimal register addresses. The demo reads the feedback block (D010–D021) as input registers with function code 04; the speed setpoint is a holding register written with function code 06.

AddrValueAccessRange / scaleUnit
53264 (D010)Actual speedFC04 read0–65535 = 0–100%%
53265 (D011)Motor status (0 = OK)FC04 readbitfield—
53269 (D015)Module temperatureFC04 readsigned°C
53281 (D021)Current powerFC04 read÷1W
53249 (D001)Speed setpointFC06 write0–65535 = 0–100%%
Bus: Modbus RTU, 19200 baud, 8E1, up to 247 fans. The setpoint is stored in EEPROM — write it on change, not continuously. Full map and steps are in the README inside the zip.
// why modbusmanager pro

A lightweight HMI for your fan plant

For a fan wall, an air-handling unit or a test bench, a full BMS or SCADA setup is overkill. ModbusManager Pro gives you a clean operator dashboard for a one-time 119 USD license — no runtime fees, no per-point pricing, no server to maintain.

Because it speaks plain Modbus, it is not tied to ebm-papst. Put EC fans, an energy meter, a VFD and a temperature controller on the same screen, whatever the brand.

Good fit for

HVAC and ventilation commissioning, fan-wall and AHU monitoring, cleanroom and data-centre cooling, OEM test benches, and anyone running several Modbus EC fans who wants one live view without a BMS.

// frequently asked questions

ebm-papst + Modbus — FAQ

Do I need real ebm-papst fans to try the demo?+
No. The workspace includes sixteen simulated slave devices, so you can run the whole 16-fan dashboard on one PC with no hardware. Swap in real fans over RS-485 when you are ready.
Which ebm-papst fans does this work with?+
Any ebm-papst EC fan with the integrated Modbus RTU interface — the common 84, 112, 150 and 200 mm EC and RadiCal ranges. The demo follows the ebm-papst MODBUS parameter layout (D-registers).
Modbus RTU or TCP?+
ebm-papst EC fans use Modbus RTU, typically 19200 baud, 8 data bits, even parity, 1 stop bit, over RS-485. Connect a USB-to-RS485 adapter. Pro also supports Modbus TCP if the fans sit behind an RTU-to-TCP gateway.
Can I control fan speed, not just monitor it?+
Yes. Write the speed setpoint holding register (D001) with function code 06. The feedback values — actual speed, motor status, power, temperature — are read-only input registers read with FC04.
How many fans can I show on one dashboard?+
The demo shows 16, but a Modbus RTU bus addresses up to 247 devices and Pro can poll and display many fans on a single dashboard page.
Does this only work with ebm-papst?+
No. ModbusManager Pro is vendor-neutral — mix ebm-papst fans with meters, VFDs, inverters and PLCs from any maker on one screen.
What does ModbusManager Pro cost?+
A one-time 119 USD perpetual license for one machine, with 12 months of free updates and a 14-day free trial — no credit card required.

Put your fan wall on one screen

Download the free 16-fan demo workspace and the ModbusManager Pro trial, and have a live ebm-papst dashboard running in minutes — with or without hardware.

Download free demo Download Pro trial

Windows 10/11 · 14-day trial · Pro $119 one-time