IMI TA-Smart (Dp)

Radiator valve • MODBUS TCP (DDF)

IMI
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Device image

TA-Smart is an inline control valve (through-type) with an EQM control characteristic and an integrated measurement function set for:

  • Flow rate (via ultrasonic flow measurement).

  • Supply/return temperatures (temperature sensors).

  • Calculated thermal power (derived from flow and temperature difference).

It supports two main control modes:

  • Flow control: the actuator modulates the valve to maintain a target flow.

  • Power control: the actuator modulates the valve to maintain a target heating/cooling power using measured flow and ΔTΔT.

Integration detail (DDF):

  • The DDF provides the required input and output signals to integrate TA-Smart into a control system.

  • Limitation: one TA-Smart device is supported per DeviceStation.

 

Manufacturer Type Protocol Model Version ID
IMI Radiator valve MODBUS TCP (DDF) 1 1 0x0A00007800010100
ID Name Unit Type Direction
0 Measured Flow l/h
1 Measured Supply Temp C
2 Measured Return Temp C
3 Measured DeltaT K
4 Relative Measured Position %
5 Measured Power kW
6 Energy Counter 1 Wh
7 Energy Counter 2 Wh
56 Energy Counter 1 kWh kWh
57 Energy Counter 2 kWh kWh
100 SET Control Mode 1=Flow, 2=Power, 3=Dp, 4=Position
101 SET Control Source 0=Analog, 1=Bus
102 SET Relative Setpoint %
180 Power Unit
181 Energy Unit
200 Quality
*2025-12-09 15:30:09 (do) ******************************
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*2025-12-15 11:40:58 (do) ******************************
several changes
*2026-03-18 13:56:57 (hw) ******************************
Last Commit: dc845d0a | 2026-02-26 09:57:35