Modbus map

The RTU-X works as a Modbus slave. The address map for the different register blocks is shown below: Coils, Inputs, Input Registers, and Holding Registers.

Addressing

The addresses in the table follow the standard Modbus convention (0xxxx for Coils, 1xxxx for Inputs, 3xxxx for Input Registers, and 4xxxx for Holding Registers). See also the Serial and Modbus section for the Slave ID and TCP port configuration.

Address		Description	Length	Type
Coils
00.001		Digital outputs	14	bool[14]
Inputs
10.001		Digital inputs	14	bool[14]
Input Registers
30.001		Analog inputs	8	uint[3]
30.009		Firmware version	1	uint
30.010		Battery percentage	1	uint
30.011		Battery status	1	uint
30.012		Model (IP68 or DIN)	1	uint
30.013		Module in expansion socket 1	1	uint
30.014		Module in expansion socket 2	1	uint
30.015		WiFi - status	1	uint
30.016		WiFi - IP address	2	byte[4]
30.018		WiFi - MAC address	3	byte[6]
30.021		WiFi - signal	1	int
30.022		Modem - status	1	uint
30.023		Modem - IP address (IPv4 or IPv6)	8	byte[16]
30.031		Modem - IMEI	8	char[16]
30.039		Modem - IMSI	8	char[16]
30.047		Modem - signal level	1	int
30.048		Modem - model	1	uint
30.049		Hour	1	uint
30.050		Minutes	1	uint
30.051		Seconds	1	uint
30.052		Day of month	1	uint
30.053		Month	1	uint
30.054		Year	1	uint
30.055		Day of week (0 = Sunday)	1	uint
30.056		Unix time in seconds, UTC	2	ulong
30.058		Unix time in seconds, local time	2	ulong
30.060		User button status	1	bool
30.061		Number of records stored in the log	2	ulong
30.063		Number of records stored in the log that haven't been sent over MQTT yet	2	ulong
30.065		Slaves status. Each bit represents the status of a slave (0 means ok and 1 error)	2	ulong
30.067		Script execution status (0 means stopped and 1 means running)	1	bool
30.071		MQTT connection status	1	uint
30.072		Time synchronization performed via NTP	1	bool
30.073		Internal sensor temperature in ºC	2	float
30.075		GPS latitude	2	float
30.077		GPS longitude	2	float
30.079		GPS altitude	2	float
30.081		GPS speed	2	float
30.083		Energy Meter - voltage	4	float[2]
30.087		Energy Meter - current	4	float[2]
30.091		Energy Meter - active power	4	float[2]
30.095		Energy Meter - reactive power	4	float[2]
30.099		Energy Meter - apparent power	4	float[2]
30.103		Energy Meter - power factor	4	float[2]
30.107		Energy Meter - frequency	4	float[2]
30.111		Energy Meter - active energy	4	float[2]
30.115		Energy Meter - reactive energy	4	float[2]
Holding Registers
40.001		Date and time (Hours, Minutes, Seconds, Day, Month, Year)	6	uint[6]
40.007		Clear log. Set to one to clear the log	1	bool
40.080		Scanner - current wifi device count	1	uint
40.081		Scanner - total wifi device count	1	uint
40.082		Scanner - current bluetooth device count	1	uint
40.083		Scanner - total bluetooth device count	1	uint
41.001		Script variables.	1000	See variable map in the user interface
42.001		Pulse count for digital input 0	2	ulong
42.003		Pulse count for digital input 1	2	ulong