RISH RM3440, RM3440i, RM3490 MODBUS registers: read online

Connect RISH to the computer through a USB-to-serial or RS485 adapter and read its registers in your browser: click "Read register values online" under the model (Chrome or Edge, nothing to install). The tables below list the MODBUS offset, unit, data type and scale of every register shown. For logging 24/7 into a database, CSV files or Excel, use the Advanced Serial Data Logger (for MODBUS RTU) or Advanced TCP/IP Data Logger (for MODBUS TCP): they poll the complete map of every model on this page and provide continuous RISH data logger and record.

Do you not know the meter address? Scan the device address online

RISH (RM3440) - MODBUS Measurements

Connection and addressing notes

Protocol: Modbus
Register addressing: 3X (30001+) for measured parameters
Modbus start address: given in hex

Registers in the map: 69 (the first 50 are listed below; the browser reader and the data loggers use the complete map). function 4 (input registers). byte order big-endian. data types: single.

MODBUS offset	Description	Data type
0	Volts 1	single
2	Volts 2	single
4	Volts 3	single
6	Current 1	single
8	Current 2	single
10	Current 3	single
12	W1	single
14	W2	single
16	W3	single
18	VA1	single
20	VA2	single
22	VA3	single
24	Var1	single
26	Var2	single
28	Var3	single
30	PF1	single
32	PF2	single
34	PF3	single
36	Phase angle 1	single
38	Phase angle 2	single
40	Phase angle 3	single
42	Volts ave	single
44	Volts sum	single
46	Current ave	single
48	Current sum	single
50	Watts ave	single
52	Watts sum	single
54	Va ave	single
56	Va sum	single
58	Var ave	single
60	Var sum	single
62	Pf ave	single
64	Pf sum	single
66	Phase angle ave	single
68	Phase angle sum	single
70	Freq	single
72	Wh import	single
74	Wh export	single
76	Varh import	single
78	Varh export	single
80	Vah	single
82	Ah	single
84	W demand (import)	single
86	W max demand (import)	single
88	W demand (export)	single
90	W max demand (export)	single
100	Va demand	single
102	Va max demand	single
104	A demand	single
106	A max demand	single

This is not the complete map: 50 of 69 registers are listed above. Click "Read register values online" to read any register of your device in the browser, or download the program to log the complete map.

RISH (RM3440i) - MODBUS Mapping

Connection and addressing notes

Protocol: Modbus
Register addressing: 3X (30001+) for measured parameters
Data format: two consecutive 16-bit registers per parameter
Settings registers: 4X
Settings access: code 03 reads a setting, code 16 writes or changes it
Response example function code: 04

Registers in the map: 69 (the first 50 are listed below; the browser reader and the data loggers use the complete map). function 4 (input registers). byte order big-endian. data types: single.

MODBUS offset	Description	Data type
0	Volts 1	single
2	Volts 2	single
4	Volts 3	single
6	Current 1	single
8	Current 2	single
10	Current 3	single
12	W1	single
14	W2	single
16	W3	single
18	VA1	single
20	VA2	single
22	VA3	single
24	Var1	single
26	Var2	single
28	Var3	single
30	PF1	single
32	PF2	single
34	PF3	single
36	Phase angle 1	single
38	Phase angle 2	single
40	Phase angle 3	single
42	Volts ave	single
44	Volts sum	single
46	Current ave	single
48	Current sum	single
50	Watts ave	single
52	Watts sum	single
54	Va ave	single
56	Va sum	single
58	Var ave	single
60	Var sum	single
62	Pf ave	single
64	Pf sum	single
66	Phase angle ave	single
68	Phase angle sum	single
70	Freq	single
72	Wh import	single
74	Wh export	single
76	Varh import	single
78	Varh export	single
80	Vah	single
82	Ah	single
84	W demand (import)	single
86	W max demand (import)	single
88	W demand (export)	single
90	W max demand (export)	single
100	Va demand	single
102	Va max demand	single
104	A demand	single
106	A max demand	single

RISH (RM3490) - MODBUS Values

Connection and addressing notes

Protocol: Modbus
Register addressing: 3X input register addresses (30001+)
Address notation: Modbus start address in hex

Registers in the map: 41. function 4 (input registers). byte order big-endian. data types: single.

MODBUS offset	Description	Data type
0	Volts 1	single
2	Volts 2	single
4	Volts 3	single
6	Current 1	single
8	Current 2	single
10	Current 3	single
12	W1	single
14	W2	single
16	W3	single
18	VA1	single
20	VA2	single
22	VA3	single
24	Var1	single
26	Var2	single
28	Var3	single
30	PF1	single
32	PF2	single
34	PF3	single
36	Phase angle 1	single
38	Phase angle 2	single
40	Phase angle 3	single
42	Volts ave	single
44	Volts sum	single
46	Current ave	single
48	Current sum	single
50	Watts ave	single
52	Watts sum	single
54	Va ave	single
56	Va sum	single
58	Var ave	single
60	Var sum	single
62	Pf ave	single
64	Pf sum	single
66	Phase angle ave	single
68	Phase angle sum	single
70	Freq	single
72	Wh	single
80	Vah	single
200	Vl 1 2 ( calculated )	single
202	Vl 2 3 ( calculated )	single
204	Vl 3 1 ( calculated )	single

Related MODBUS registers maps

Note: Products and companies mentioned here are used only for definition and identification purposes and can be trademarks and/or registered trademarks of the respective companies.

RISH RM3440, RM3440i, RM3490 MODBUS registers: read online

RISH (RM3440) - MODBUS Measurements

RISH (RM3440i) - MODBUS Mapping

RISH (RM3490) - MODBUS Values

Related MODBUS registers maps

MODBUS COM Port Connection

Feature Not Supported