Meltem M-WRG-II xx

Ventilation unit • MODBUS RTU (DDF)

Meltem
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Provides inputs and outputs for integrating the device into the VENTILATION system.

Limited to 16 devices per Device Station / COM port.

Since the minimum pauses are set quite long, it may take a few seconds for the fan level to be applied, especially when many devices are on the line.

This integration has been tested with the M-WRG-II P-M Unit. But this universal integration should work across all models of the M-WRG-II series. We recommend ordering the device from your preferred supplier and specifying the desired IDs. If multiple devices are operated on the same line, the IDs must be different.

Manufacturer Type Protocol Model Version ID
Meltem Ventilation unit MODBUS RTU (DDF) 1 1 0x0B00000F00010100
ID Name Unit Type Direction
0 Supply Air Temp C / 10
1 Extract Air Temp C / 10
2 Exhaust Air Temp C / 10
3 Outdoor Air Temp C / 10
4 Extract Air Humidity % / 327.67
5 Extract Air CO2 ppm
6 Supply Air Humidity % / 327.67
8 Error Message 0 = OK, 1 = Error
9 Filter change indicator 0 = not elapsed, 1 = elapsed
10 Frost Protection 0 = not active, 1 = active
11 Extract Vent Level m^3/h
12 Supply Vent Level m^3/h
13 Time to Filter Change days
14 Vent Unit Oper Hours h
15 Fan Motor Oper Hours h
21 Fan Level 1
22 Fan Level 2
23 Fan Level 3
24 Fan Level 4
180 Quality R41000_12
181 Quality R41016_3
182 Quality R41020_14
183 QUALITY_MOD
184 QUALITY_LVL
185 QUALITY_WRT
200 Quality
*2026-03-18 13:51:58 (hw) ******************************
Last Commit: 21d3c8eb | 2026-02-26 09:46:39