WB-LED Modbus register map

Description

For firmware update instructions, see the device page under “Firmware updates and resetting settings”.

Legend
RO / RW	Read only / Read/Write
Shown in bold	Default register value
xN	Multiply the register value by this factor to obtain the value in the stated units. If omitted, assume 1
⚡	This register supports data transmission using events in Fast Modbus.
FW	Firmware version that introduced the register. Blank means it has always been available.
Error:	Value on error
Grey cell	Service register: purpose, format and contents may change in later firmware

Device Modbus registers
Address		Register parameters			Channel	Description	Values	FW
Dec	Hex	Type	Access	Format	Channel	Description	Values	FW
Input states and press counters
0	0x0000	Discrete Input ⚡	RO	bool	Input 1	State	0 — open, 1 - closed
1	0x0001				Input 2
2	0x0002				Input 3
3	0x0003				Input 4
32	0x0020	Input ⚡	RO	u16	Input 1	Contact closure counter	0 − 65535 with wraparound
33	0x0021				Input 2
34	0x0022				Input 3
35	0x0023				Input 4
464	0x01D0	Input ⚡	RO	u16	Input 1	Short press counter	0 − 65535 with wraparound
465	0x01D1				Input 2
466	0x01D2				Input 3
467	0x01D3				Input 4
480	0x01E0	Input ⚡	RO	u16	Input 1	Long press counter	0 − 65535 with wraparound
481	0x01E1				Input 2
482	0x01E2				Input 3
483	0x01E3				Input 4
496	0x01F0	Input ⚡	RO	u16	Input 1	Double press counter	0 − 65535 with wraparound
497	0x01F1				Input 2
498	0x01F2				Input 3
499	0x01F3				Input 4
512	0x0200	Input ⚡	RO	u16	Input 1	Short-then-long press counter	0 − 65535 with wraparound
513	0x0201				Input 2
514	0x0202				Input 3
515	0x0203				Input 4
Configuring actions for latching switches. For pushbutton configuration, see #Configuring press actions
416	0x01A0	Holding	RW	u16	Input 1	Input operating mode Before firmware 3.5.0 this register is unavailable and all channels operate in Pushbutton mode	0 - pushbutton 1 - latching switch	3.5.0
417	0x01A1				Input 2
418	0x01A2				Input 3
419	0x01A3				Input 4
704	0x02C0	Holding	RW	u16	Input 1	Channel affected in the OFF position Select the Latching switch input mode	0 - ignore event 1 - `W1` 2 - `W2` 3 - `W3` 4 - `W4` 5 - `W1 + W2 (parallel)` 6 - `W3 + W4 (parallel)` 7 - `W1 + W2 + W3 + W4 (parallel)` 8 - `CCT1` 9 - `CCT2` 10 - `RGB` 11 - `Continuous RGB strip colour change` 12 - `CCT1 + CCT2 (parallel)` 100 - all channels (only with the Switch off action)	3.5.0
705	0x02C1				Input 2
706	0x02C2				Input 3
707	0x02C3				Input 4
720	0x02D0	Holding	RW	u16	Input 1	Channel affected in the ON position Select the Latching switch input mode		3.5.0
721	0x02D1				Input 2
722	0x02D2				Input 3
723	0x02D3				Input 4
736	0x02E0	Holding	RW	u16	Input 1	Action in the OFF position Select the Latching switch input mode	0 - switch off 1 - switch on 2 - toggle state	3.5.0
737	0x02E1				Input 2
738	0x02E2				Input 3
739	0x02E3				Input 4
752	0x02F0	Holding	RW	u16	Input 1	Action in the ON position Select the Latching switch input mode		3.5.0
753	0x02F1				Input 2
754	0x02F2				Input 3
755	0x02F3				Input 4
Channel state control
0	0x0000	Coil ⚡	RW	bool	Channel 1	Individual channel state `Wx`	0 - off, 1 - on
1	0x0001				Channel 2
2	0x0002				Channel 3
3	0x0003				Channel 4
4	0x0004	Coil ⚡	RW	bool	Channels 1 and 2	Channel pair state `W1 + W2 (parallel)`	0 - off, 1 - on
5	0x0005				Channels 3 and 4	Channel pair state `W3 + W4 (parallel)`
6	0x0006				Channels 1, 2, 3, 4	State of all channels `W1 + W2 + W3 + W4 (parallel)`
7	0x0007	Coil ⚡	RW	bool	Channels 1 and 2	Channel pair state `CCT1 Warm White` and `CCT1 Cool White`	0 - off, 1 - on
8	0x0008	Coil ⚡	RW	bool	Channels 3 and 4	Channel pair state `CCT2 Warm White` and `CCT2 Cool White`	0 - off, 1 - on
9	0x0009	Coil ⚡	RW	bool	Channels 1, 2, 3	Channel state `R`, `G`, `B` when operating an RGB strip	0 - off, 1 - on
10	0x000A	Coil ⚡	RW	bool	Channels 1, 2, 3	Continuous RGB strip colour change	0 - off, 1 - on
11	0x000B	Coil ⚡	RW	bool	Channels 1, 2, 3, 4	State of all channels `CCT1 + CCT2 (parallel)`	0 - off, 1 - on	3.8.0
Channel brightness control
2000	0x07D0	Holding ⚡	RW	u16	Channel 1	Individual channel brightness `Wx`	% 0 - 100 (50) Error: 0xFFFF
2001	0x07D1				Channel 2
2002	0x07D2				Channel 3
2003	0x07D3				Channel 4
2004	0x07D4				Channels 1 and 2	Channel pair brightness `W1 + W2 (parallel)`	% 0 - 100 (50) Error: 0xFFFF
2005	0x07D5				Channels 3 and 4	Channel pair brightness `W3 + W4 (parallel)`
2006	0x07D6				Channels 1, 2, 3, 4	Brightness of all channels `W1 + W2 + W3 + W4 (parallel)`
2007	0x07D7				Channels 1 and 2	CCT1 strip colour temperature	% 0 - 100 (50) * 0 - warm colour * 100 - cool colour Error: 0xFFFF
2008	0x07D8				Channels 1 and 2	CCT1 strip brightness	% 0 - 100 (50) Error: 0xFFFF
2009	0x07D9				Channels 3 and 4	CCT2 strip colour temperature	% 0 - 100 (50) * 0 - warm colour * 100 - cool colour Error: 0xFFFF
2010	0x07DA				Channels 3 and 4	CCT2 strip brightness	% 0 - 100 (50) Error: 0xFFFF
2011	0x07DB				R component	of the RGB strip colour, RGB palette	0 - 255 (127) Error: 0xFFFF
2012	0x07DC				G component
2013	0x07DD				B component
2014	0x07DE				H component	of the RGB strip colour, HSV palette	° 0 - 360 Error: 0xFFFF
2015	0x07DF				S component		% 0 - 100 Error: 0xFFFF
2016	0x07E0				V component		% 0 - 100 (50) Error: 0xFFFF
2017	0x07E1					Continuous RGB colour change speed: period for increasing Hue by 1 degree	ms 3 - 10000 (30) Error: 0xFFFF
2018	0x07E2				Channels 1, 2, 3, 4	Colour temperature of CCT1 and CCT2 strips	% 0 - 100 (50) * 0 - warm colour * 100 - cool colour Error: 0xFFFF	3.8.0
2019	0x07E3				Channels 1, 2, 3, 4	Brightness of CCT1 and CCT2 strips	% 0 - 100 (50) Error: 0xFFFF	3.8.0
Duplicate control channels with automatic switch-on
2100	0x0834	Holding ⚡	RW	u16	Channel 1	Individual channel brightness `Wx` Writing > 0 switches on the associated output and sets brightness; writing 0 clears the coil register	% 0 - 100 (50) Error: 0xFFFF	3.8.0
2101	0x0835				Channel 2
2102	0x0836				Channel 3
2103	0x0837				Channel 4
2104	0x0838				Channels 1 and 2	Channel pair brightness `W1 + W2 (parallel)` Writing > 0 switches on the associated output and sets brightness; writing 0 clears the coil register
2105	0x0839				Channels 3 and 4	Channel pair brightness `W3 + W4 (parallel)` Writing > 0 switches on the associated output and sets brightness; writing 0 clears the coil register
2106	0x083A				Channels 1, 2, 3, 4	Brightness of all channels `W1 + W2 + W3 + W4 (parallel)` Writing > 0 switches on the associated output and sets brightness; writing 0 clears the coil register
2107	0x083B				Channels 1 and 2	CCT1 strip colour temperature Any write switches on the associated output and sets its value	% 0 - 100 (50) * 0 - warm colour * 100 - cool colour Error: 0xFFFF
2108	0x083C				Channels 1 and 2	CCT1 strip brightness Writing > 0 switches on the associated output and sets brightness; writing 0 clears the coil register	% 0 - 100 (50) Error: 0xFFFF
2109	0x083D				Channels 3 and 4	CCT2 strip colour temperature Any write switches on the associated output and sets its value	% 0 - 100 (50) * 0 - warm colour * 100 - cool colour Error: 0xFFFF
2110	0x083E				Channels 3 and 4	CCT2 strip brightness Writing > 0 switches on the associated output and sets brightness; writing 0 clears the coil register	% 0 - 100 (50) Error: 0xFFFF
2111	0x083F				R component	of the RGB strip colour, RGB palette Any write switches on the associated output and sets its value	0 - 255 (127) Error: 0xFFFF
2112	0x0840				G component
2113	0x0841				B component
2114	0x0842				H component	of the RGB strip colour, HSV palette Any write switches on the associated output and sets its value	° 0 - 360 Error: 0xFFFF
2115	0x0843				S component		% 0 - 100 Error: 0xFFFF
2116	0x0844				V component	of the RGB strip colour, HSV palette Writing > 0 switches on the associated output and sets brightness; writing 0 clears the coil register	% 0 - 100 (50) Error: 0xFFFF
2117	0x0845					Continuous RGB colour change speed: period for increasing Hue by 1 degree Any write switches on the associated output and sets its value	ms 3 - 10000 (30) Error: 0xFFFF
2118	0x0846				Channels 1, 2, 3, 4	Colour temperature of CCT1 and CCT2 strips Any write switches on the associated output and sets its value	% 0 - 100 (50) * 0 - warm colour * 100 - cool colour Error: 0xFFFF
2119	0x0847				Channels 1, 2, 3, 4	Brightness of CCT1 and CCT2 strips Writing > 0 switches on the associated output and sets brightness; writing 0 clears the coil register	% 0 - 100 (50) Error: 0xFFFF
Remote smooth adjustment of lighting parameters
Each lighting parameter has an action register (2200..2219) and a step-period register (2300..2319). Registers for a parameter unused in the current dimmer mode retain their addresses, but writing an action produces no visible change. For a detailed description, see the WB-LED page.
2200	0x0898	Holding ⚡	RW	u16	Channel 1	Remote smooth adjustment action for the lighting parameter	0 - stop 1 - decrease 2 - increase 3 - increase/decrease	3.8.0
2201	0x0899				Channel 2
2202	0x089A				Channel 3
2203	0x089B				Channel 4
2204	0x089C				Channels 1, 2
2205	0x089D				Channels 3, 4
2206	0x089E				Channels 1, 2, 3, 4
2207	0x089F				CCT1: colour temperature
2208	0x08A0				CCT1: brightness
2209	0x08A1				CCT2: colour temperature
2210	0x08A2				CCT2: brightness
2211	0x08A3				RGB: red
2212	0x08A4				RGB: green
2213	0x08A5				RGB: blue
2214	0x08A6				RGB: hue
2215	0x08A7				RGB: saturation
2216	0x08A8				RGB: brightness
2217	0x08A9				Hue change speed
2218	0x08AA				CCT1 + CCT2: colour temperature
2219	0x08AB				CCT1 + CCT2: brightness
2300	0x08FC	Holding	RW	u16	Channel 1	Step period for remote smooth parameter adjustment	ms/unit 5 – 500 (20)	3.8.0
2301	0x08FD				Channel 2
2302	0x08FE				Channel 3
2303	0x08FF				Channel 4
2304	0x0900				Channels 1, 2
2305	0x0901				Channels 3, 4
2306	0x0902				Channels 1, 2, 3, 4
2307	0x0903				CCT1: colour temperature
2308	0x0904				CCT1: brightness
2309	0x0905				CCT2: colour temperature
2310	0x0906				CCT2: brightness
2311	0x0907				RGB: red
2312	0x0908				RGB: green
2313	0x0909				RGB: blue
2314	0x090A				RGB: hue
2315	0x090B				RGB: saturation
2316	0x090C				RGB: brightness
2317	0x090D				Hue change speed
2318	0x090E				CCT1 + CCT2: colour temperature
2319	0x090F				CCT1 + CCT2: brightness
Output configuration and direct output PWM control
70	0x0046	Holding	RW	u16	Channel 1	Minimum PWM	1 – 2048 (6)
71	0x0047				Channel 2
72	0x0048				Channel 3
73	0x0049				Channel 4
80	0x0050	Holding	RW	u16	Channel 1	Maximum PWM	1 – 2048
81	0x0051				Channel 2
82	0x0052				Channel 3
83	0x0053				Channel 4
90	0x005A	Holding	RW	u16	Channel 1	Direct control	0 – 2048
91	0x005B				Channel 2
92	0x005C				Channel 3
93	0x005D				Channel 4
Press type detection
1100	0x044C	Holding	RW	u16	Input 1	Long press time A press lasting longer than this value is considered long	ms 500 – 5000 (1000)
1101	0x044D				Input 2
1102	0x044E				Input 3
1103	0x044F				Input 4
1120	0x0460	Holding	RW	u16	Input 1	Parameter adjustment speed while holding the button Smaller values make the parameter change faster	ms/unit 5 – 500 (20)
1121	0x0461				Input 2
1122	0x0462				Input 3
1123	0x0463				Input 4
1140	0x0474	Holding	RW	u16	Input 1	Second press waiting time If no second press occurs within this time, the press is treated as a single press. 0 disables all press types except short and long presses	ms 0 – 2000 (300)
1141	0x0475				Input 2
1142	0x0476				Input 3
1143	0x0477				Input 4
1160	0x0488	Holding	RW	u16	Input 1	Debounce time Set this 5–10 times shorter than the second-press waiting time. If double presses are disabled, any value is allowed. When connecting an encoder, 2–5 ms is recommended.	ms 2 – 2000 (50)
1161	0x0489				Input 2
1162	0x048A				Input 3
1163	0x048B				Input 4
Value adjustment step for presses
1200	0x04B0	Holding	RW	u16	Input 1	Controlled channel value step for a single short press. Applies to Increase value and Decrease value actions	1 – 10000 (1)	3.8.0
1201	0x04B1				Input 2
1202	0x04B2				Input 3
1203	0x04B3				Input 4
1220	0x04C4	Holding	RW	u16	Input 1	Controlled channel value step for a double press. Applies to Increase value and Decrease value actions	1 – 10000 (1)	3.8.0
1221	0x04C5				Input 2
1222	0x04C6				Input 3
1223	0x04C7				Input 4
Safety Mode
8	0x0008	Holding	RW	u16		Communication loss timeout before entering safe mode	s 1 - 65534 (10)	3.5.0
640	0x0280	Holding	RW	u16	Input 1	Input control in Safety Mode	0 - do not block 1 - block in safe mode 2 - allow only in safe mode	3.5.0
641	0x0281				Input 2
642	0x0282				Input 3
643	0x0283				Input 4
648	0x0288	Holding	RW	u16	Channel 1	Channel action when entering safe mode. Channels depend on the selected dimmer operating mode. #Channel mapping by dimmer mode	0 - do nothing 1 - switch off 2 - switch on 3 - switch on and set brightness Actions depend on the selected dimmer operating mode. #Action mapping by dimmer mode for safe mode and power-on behaviour	3.5.0
649	0x0289				Channel 2
650	0x028A				Channel 3
651	0x028B				Channel 4
656	0x0290	Holding	RW	u16	Channel 1	Channel brightness on entering safe mode (only with action 3)	% 1 - 100 (50)	3.5.0
657	0x0291				Channel 2
658	0x0292				Channel 3
659	0x0293				Channel 4
Dimmer power-on behaviour
664	0x0298	Holding	RW	u16	Channel 1	Channel action at dimmer power-on Channels depend on the selected dimmer operating mode. #Channel mapping by dimmer mode	0 - switch off 1 - restore previous state 2 - switch on 3 - switch on and set brightness Actions depend on the selected dimmer operating mode. #Action mapping by dimmer mode for safe mode and power-on behaviour	3.5.0
665	0x0299				Channel 2
666	0x029A				Channel 3
667	0x029B				Channel 4
672	0x02A0	Holding	RW	u16	Channel 1	Channel brightness at dimmer power-on (only with action 3)	% 1 - 100 (50)	3.5.0
673	0x02A1				Channel 2
674	0x02A2				Channel 3
675	0x02A3				Channel 4
Brightness, colour temperature and saturation transition times
3000	0x0BB8	Holding	RW	u16	Channel 1	Brightness increase time for independent operation	ms 0 – 30000 (1000)
3001	0x0BB9				Channel 2
3002	0x0BBA				Channel 3
3003	0x0BBB				Channel 4
3004	0x0BBC	Holding	RW	u16	Channels 1 and 2	Brightness increase time for parallel operation	ms 0 – 30000 (1000)
3005	0x0BBD				Channels 3 and 4
3006	0x0BBE				Channels 1, 2, 3, 4
3007	0x0BBF	Holding	RW	u16	Channels 1 and 2	CCT strip colour temperature increase time	ms 0 – 30000 (1000)
3008	0x0BC0	Holding	RW	u16	Channels 1 and 2	CCT strip brightness increase time	ms 0 – 30000 (1000)
3009	0x0BC1	Holding	RW	u16	Channels 3 and 4	CCT strip colour temperature increase time	ms 0 – 30000 (1000)
3010	0x0BC2	Holding	RW	u16	Channels 3 and 4	CCT strip brightness increase time	ms 0 – 30000 (1000)
3011	0x0BC3	Holding	RW	u16	HSV-H	RGB strip hue increase time	ms 0 – 30000 (1000)
3012	0x0BC4	Holding	RW	u16	HSV-S	RGB strip saturation increase time	ms 0 – 30000 (1000)
3013	0x0BC5	Holding	RW	u16	HSV-V	RGB strip brightness increase time	ms 0 – 30000 (1000)
3014	0x0BC6	Holding	RW	u16	Channels 1, 2, 3, 4	CCT1 + CCT2 strip colour temperature increase time	ms 0 – 30000 (1000)	3.8.0
3015	0x0BC7	Holding	RW	u16	Channels 1, 2, 3, 4	CCT1 + CCT2 strip brightness increase time	ms 0 – 30000 (1000)	3.8.0
3100	0x0C1C	Holding	RW	u16	Channel 1	Brightness decrease time for independent operation	ms 0 – 30000 (1000)
3101	0x0C1D				Channel 2
3102	0x0C1E				Channel 3
3103	0x0C1F				Channel 4
3104	0x0C20	Holding	RW	u16	Channels 1 and 2	Brightness decrease time for parallel operation	ms 0 – 30000 (1000)
3105	0x0C21				Channels 3 and 4
3106	0x0C22				Channels 1, 2, 3, 4
3107	0x0C23	Holding	RW	u16	Channels 1 and 2	CCT strip colour temperature decrease time	ms 0 – 30000 (1000)
3108	0x0C24	Holding	RW	u16	Channels 1 and 2	CCT strip brightness decrease time	ms 0 – 30000 (1000)
3109	0x0C25	Holding	RW	u16	Channels 3 and 4	CCT strip colour temperature decrease time	ms 0 – 30000 (1000)
3110	0x0C26	Holding	RW	u16	Channels 3 and 4	CCT strip brightness decrease time	ms 0 – 30000 (1000)
3111	0x0C27	Holding	RW	u16	HSV-H	RGB strip hue decrease time	ms 0 – 30000 (1000)
3112	0x0C28	Holding	RW	u16	HSV-S	RGB strip saturation decrease time	ms 0 – 30000 (1000)
3113	0x0C29	Holding	RW	u16	HSV-V	RGB strip brightness decrease time	ms 0 – 30000 (1000)
3114	0x0C2A	Holding	RW	u16	Channels 1, 2, 3, 4	CCT1 + CCT2 strip colour temperature decrease time	ms 0 – 30000 (1000)	3.8.0
3115	0x0C2B	Holding	RW	u16	Channels 1, 2, 3, 4	CCT1 + CCT2 strip brightness decrease time	ms 0 – 30000 (1000)	3.8.0
CCT strip settings
3200	0x0C80	Holding	RW	u8	Channels 1 and 2	CCT strip power normalization	0 – disable 1 – enable	3.7.0
3201	0x0C81	Holding	RW	u8	Channels 3 and 4	CCT strip power normalization	0 – disable 1 – enable	3.7.0
3202	0x0C82	Holding	RW	u8	Channels 1, 2, 3, 4	CCT1 + CCT2 strip power normalization	0 – disable 1 – enable	3.8.0
Encoder support
364	0x016C	Input ⚡	RO	u16	Encoder 1	Encoder step counter, accounting for the Pulses per step parameter	0 - 65535	3.8.0
365	0x016D	Input ⚡	RO	u16	Encoder 2		0 - 65535
368	0x0170	Holding	RW	s32	Encoder 1	Encoder position in pulses. Writable to set an initial value	−2147483648 - 2147483647 (0)
370	0x0172	Holding	RW	s32	Encoder 2		−2147483648 - 2147483647 (0)
376	0x0178	Holding	RW	u16	Encoder 1	Encoder connection type. When connecting an encoder, reduce input debounce time (registers 1160–1163) to 2–5 ms	0 - unused 1 - AB type
377	0x0179	Holding	RW	u16	Encoder 2		0 - unused 1 - AB type
384	0x0180	Holding	RW	u16	Encoder 1	Pulses per logical encoder step	1 - 65535 (4)
385	0x0181	Holding	RW	u16	Encoder 2	Pulses per logical encoder step	1 - 65535 (4)
388	0x0184	Holding	RW	u16	Encoder 1	Controlled channel. Available values depend on the dimmer mode	0 - control disabled 1 - channel 1 2 - channel 2 3 - channel 3 4 - channel 4 5 - channels 1, 2 6 - channels 3, 4 7 - channels 1, 2, 3, 4 8 - CCT1 colour temperature 9 - CCT1 brightness 10 - CCT2 colour temperature 11 - CCT2 brightness 12 - red brightness 13 - green brightness 14 - blue brightness 15 - RGB strip hue (HSV-H) 16 - RGB strip saturation (HSV-S) 17 - RGB strip brightness (HSV-V) 18 - continuous RGB strip hue change time 19 - CCT1, CCT2 colour temperature 20 - CCT1, CCT2 brightness
389	0x0185	Holding	RW	u16	Encoder 2
392	0x0188	Holding	RW	u16	Encoder 1	Controlled channel value adjustment step	1 - 10000 (1)
393	0x0189	Holding	RW	u16	Encoder 2	Controlled channel value adjustment step	1 - 10000 (1)
396	0x018C	Holding	RW	u16	Encoder 1	Behaviour below minimum brightness	0 - switch the channel off 1 - retain minimum brightness
397	0x018D	Holding	RW	u16	Encoder 2	Behaviour below minimum brightness
Settings common to all modes
9	0x0009	Holding	RW	u16		Output PWM frequency setting	1 – 240 (8) F = 24 kHz / value
4000	0x0FA0	Holding	RW	u16		Dimmer operating mode setting	Find the mode code in the operating mode table 256
Diagnostic data
400	0x190	Input	RO	s16		Dimmer board temperature. Used to detect overheating and reduce maximum power when overheating occurs.	-55 .. +150 °C	WB-LED
401	0x0191	Input	RO	u16		Permitted dimmer power as a percentage of maximum. Below 70 °C board temperature, the dimmer operates at 100% power. Above 70 °C, maximum output PWM is limited; at 80 °C the outputs switch off completely.	0 .. 100 %	WB-LED
402	0x0192	Input	RO	u16		Hardware overcurrent and short-circuit protection state. After a trip, the outputs switch off for 3 s, then ramp up one at a time.	1 - protection tripped	WB-LED

Configuring press actions

Legend
RO / RW	Read only / Read/Write
Shown in bold	Default register value
xN	Multiply the register value by this factor to obtain the value in the stated units. If omitted, assume 1
⚡	This register supports data transmission using events in Fast Modbus.
FW	Firmware version that introduced the register. Blank means it has always been available.
Error:	Value on error
Grey cell	Service register: purpose, format and contents may change in later firmware

Action configuration registers
Address		Register parameters			Channel	Description	Values	FW
Dec	Hex	Type	Access	Format	Channel	Description	Values	FW
1000	0x03E8	Holding	RW	u16	Input 1	Short press action. See the calculation formula below.	0x3009
1001	0x03E9				Input 2		0x900E
1002	0x03EA				Input 3		0x3003
1003	0x03EB				Input 4		0
1020	0x03FC	Holding	RW	u16	Input 1	Long press action. See the calculation formula below.	0xB010
1021	0x03FD				Input 2		0x900E
1022	0x03FE				Input 3		0xB003
1023	0x03FF				Input 4		0
1040	0x0410	Holding	RW	u16	Input 1	Double press action. See the calculation formula below.	0
1041	0x0411				Input 2
1042	0x0412				Input 3
1043	0x0413				Input 4
1060	0x0424	Holding	RW	u16	Input 1	Short-then-long press action. See the calculation formula below.	0
1061	0x0425				Input 2
1062	0x0426				Input 3
1063	0x0427				Input 4

To configure a press-type action, write a number constructed as follows to the corresponding register:

0000 0000 0000 0000

The upper 4 bits specify the action type:

0 - no action
0b0001 - set the coil register to 0
0b0010 - set the coil register to 1
0b0011 - toggle the coil register 0 <-> 1
0b0100 - set all coil registers to 0 (switch all channels off). Available since firmware 3.3.0
0b1001 - increase the holding register value (by 1 per button event)
0b1010 - decrease the holding register value (by 1 per button event)
0b1011 - decrease/increase the holding register value. Direction changes with each new press.

0000 0000 0000 0000

The lower 12 bits specify the register number, without the base address, to which the action applies. Coil addresses start at zero, so the register number equals its address. Data register addresses start at 2000 (0x07D0), the base address. Subtract 2000 from the holding register address and put the result (0 to 17) in the lower 12 bits. For Switch all channels off, set the lower 12 bits to zero.

Value = (action << 12) | (reg_number - 0x07D0)

Buttons change Modbus register values. Only enable coils (coil 0–10) and data holding registers (2000–2017) can be changed.

useful example on the support portal

Channel mapping by dimmer mode

The table below maps dimmer operating modes to the action configuration registers for safe mode and power-on behaviour.

The intersection of an operating mode and a configuration register identifies the channel type whose action is stored in that register. - means that the configuration register is unused in this operating mode.

Operating mode	Configuration register 1	Configuration register 2	Configuration register 3	Configuration register 4
W+W+W+W:	W1	W2	W3	W4
2W+W+W	W1 + W2 (parallel)	-	W3	W4
CCT+W+W	CCT1 strip colour temperature	CCT1 strip brightness	W3	W4
W+W+2W	W1	W2	W3 + W4 (parallel)	-
2W+2W	W1 + W2 (parallel)	-	W3 + W4 (parallel)	-
CCT+2W	CCT1 strip colour temperature	CCT1 strip brightness	W3 + W4 (parallel)	-
W+W+CCT	W1	W2	CCT2 strip colour temperature	CCT2 strip brightness
2W+CCT	W1 + W2 (parallel)	-	CCT2 strip colour temperature	CCT2 strip brightness
CCT+CCT	CCT1 strip colour temperature	CCT1 strip brightness	CCT2 strip colour temperature	CCT2 strip brightness
RGB+W	HSV-H	HSV-S	HSV-V	W4
4W	W1 + W2 + W3 + W4 (parallel)	-	-	-
2*CCT	Colour temperature of CCT1 and CCT2 strips	Brightness of CCT1 and CCT2 strips	-	-

Action mapping by dimmer mode for safe mode and power-on behaviour

The table shows the permitted actions for each channel type.

Channel type	Available actions on entering safe mode	Available actions at power-on
`Wx` `Wx + Wx (parallel)` `W1 + W2 + W3 + W4 (parallel)` `CCTx strip brightness` `Brightness of CCT1 and CCT2 strips` `HSV-V`	0 - do nothing 1 - switch off 2 - switch on 3 - switch on and set brightness	0 - switch off 1 - restore previous state 2 - switch on 3 - switch on and set brightness
`CCTx strip colour temperature` `Colour temperature of CCT1 and CCT2 strips` `HSV-H` `HSV-S`	0 - do nothing 3 - set value	0 - do nothing 3 - set value

Example:

The selected operating mode is 2W+CCT. Configure these actions:

on entering safe mode:
- for channel W1 + W2 (parallel) - do nothing
- for channel CCT2 strip colour temperature - set value to 85
- for channel CCT2 strip brightness - switch on and set brightness to 40
at power-on:
- for channel W1 + W2 (parallel) - restore previous state
- for channel CCT2 strip colour temperature - do nothing
- for channel CCT2 strip brightness - switch on

Write the following values to the registers:

safe-mode behaviour settings:
- actions:
  - 648 - 0
  - 650 - 3
  - 651 - 3
- levels:
  - 658 - 85
  - 659 - 40
power-on behaviour settings:
- actions:
  - 664 - 1
  - 666 - 0
  - 667 - 2

Common registers

Legend
RO / RW	Read only / Read/Write
Shown in bold	Default register value
xN	Multiply the register value by this factor to obtain the value in the stated units. If omitted, assume 1
⚡	This register supports data transmission using events in Fast Modbus.
FW	Firmware version that introduced the register. Blank means it has always been available.
Error:	Value on error
Grey cell	Service register: purpose, format and contents may change in later firmware

Connection settings, firmware version and other service registers
Address		Register parameters			Description	Values	Note
Dec	Hex	Type	Access	Format	Description	Values	Note
Connection settings
110	0x006E	Holding	RW	u16	RS-485 baud rate. RS-485 connection parameter settings	×100, baud 12 — 1200 bit/s, 24 — 2400 bit/s, 48 — 4800 bit/s, 96 — 9600 bit/s, 192 — 19200 bit/s, 384 — 38400 bit/s, 576 — 57600 bit/s, 1152 — 115200 bit/s
111	0x006F	Holding	RW	u16	RS-485 parity setting	0 — no parity (none), 1 — odd, 2 — even
112	0x0070	Holding	RW	u16	RS-485 stop bits See: stop-bit tolerance	1, 2
128	0x0080	Holding	RW	u16	Device Modbus address (details)
200-219	0x00C8 - 0x00DB	Input	RO	string	Device model
220-244	0x00DC - 0x00F4	Input	RO	string	Firmware build commit hash and branch name (2 characters per register)
250-265	0x00FA - 0x0109	Input	RO	string	Firmware version
266-269	0x010A - 0x010D	Input	RO	u64	Serial number extension
270-271	0x010E - 0x010F	Input	RO	u32	Serial number
290-301	0x0122 - 0x012D	Input	RO	string	Firmware signature
320	0x0140	Input	RO	u16	Firmware version in numeric format (details)	MAJOR
321	0x0141					MINOR
322	0x0142					PATCH
323	0x0143			s16		SUFFIX
324-325	0x0144 - 0x0145	Input	RO	u32	Firmware version in numeric format
326-327	0x0146 - 0x0147	Input	RO	u32	Firmware version in big-endian format
Other information
104-105	0x0068 - 0x0069	Input	RO	u32	Uptime since boot	seconds
120	0x0078	Holding	RW	u16	Reboot device without saving state	Any non-zero value reboots the device
129	0x0081	Holding	RW	u16	Enter firmware update mode for 2 minutes	Any non-zero value enters firmware update mode
330-337	0x014A - 0x0151	Input	RO	string	Bootloader version
130	0x0082	Holding	RW	u16	Disable Status LED	0 — enabled 1 — disabled
131	0x0083	Holding	RW	u16	Enter firmware update mode using the current communication settings. To check whether the firmware and bootloader support this feature, read this register. If reading succeeds and returns `0`, the feature is supported.	Writing 1 enters firmware update mode	Since firmware 3.4.2
113	0x0071	Holding	RW	u16	Delay before replying to a Modbus request	0 - 254 ms
114	0x0072	Holding	RW	u16	Continuous reading across register gaps	0 - disabled 1 - enabled 2 - enabled, retained after reboot
121	0x0079	Input	RO	u16	Current supply voltage	mV
122	0x007A	Input	RO	u16	Minimum supply voltage since boot, without averaging	mV
125	0x007D	Input	RO	u16	Current supply voltage, without averaging	mV
119	0x0077	Input	RO	u16	Minimum microcontroller supply voltage since boot, before averaging	mV
123	0x007B	Input	RO	u16	Microcontroller supply voltage	mV
124	0x007C	Input	RO	s16	Internal microcontroller temperature	x0.1, °C
304-319	0x0130-0x013F	Input	RO	string	Device batch number. Available only on devices manufactured from 21 January 2026.		Since firmware 3.6.0
65402	0xFF7A	Holding	RW	u16	Reset device settings to defaults. Communication settings are retained. The device reboots after the reset.	Writing 1 resets the settings	Since firmware 3.5.3
65500	0xFFDC	Coil	RW	bool	Service register for visually testing indicator LEDs	Writing 1 switches on all indicator LEDs	Since firmware 3.9.0
64256-64383	0xFB00-0xFB7F	Input	RO	u16	FlashFS: free space per page	bytes	Since firmware 3.6.0
64384-64511	0xFB80-0xFBFF	Input	RO	u16	FlashFS: total size of current files per page	bytes
64512-64639	0xFC00-0xFC7F	Input	RO	u16	FlashFS: page fragmentation	0…100 % 0 — all data is current, 100 — no current data
64640-64767	0xFC80-0xFCFF	Input	RO	u16	FlashFS: page erase counter
65504	0xFFE0	Input	RO	u16	Maximum stack usage	bytes 0 — stack corrupted	Since firmware 3.6.0
65505	0xFFE1	Input	RO	u16	Free RAM	bytes
65506	0xFFE2	Input	RO	u16	Used RAM	bytes
65507	0xFFE3	Input	RO	u16	Stack size	bytes
65508	0xFFE4	Input	RO	u16	Cause of last MCU reset	1 — LPWR, 2 — WWDG, 3 — IWDG, 4 — SFT, 5 — POR, 6 — PIN, 7 — OBL, 8 — V18PWR	Since firmware 3.6.0
65509	0xFFE5	Input	RO	u32	Firmware update counter		Since firmware 3.6.0