Acrel ADW300, DTSD1352, PZ300 MODBUS registers: read online

Connect Acrel 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 Acrel logger and poll.

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Acrel (ADW300) - MODBUS Values

Registers in the map: 130 (the first 50 are listed below; the browser reader and the data loggers use the complete map). function 3 (holding registers). byte order big-endian. data types: dword, word.

MODBUS offset	Description	Units	Data type	Scale
1	2		word
20	Voltage of A phase		word
21	Voltage of B phase		word
22	Voltage of C phase		word
23	Voltage between A-B		word
24	Voltage between B-C		word
25	Voltage between C-A		word
26	Electricity of A phase	A	word	×0.01
27	Electricity of B phase	A	word	×0.01
28	Electricity of C phase	A	word	×0.01
29	Vector sum of 3-phase current	A	word	×0.01
30	Active power of A phase	kW	dword	×0.001
32	Active power of B phase	kW	dword	×0.001
34	Active power of C phase	kW	dword	×0.001
36	Total active power	kW	dword	×0.001
38	Reactive power of A phase	kvar	dword	×0.001
40	Reactive power of B phase	kvar	dword	×0.001
42	Reactive power of C phase	kvar	dword	×0.001
44	Total reactive power	kVA	dword	×0.001
46	Apparent power of A phase	kVA	dword	×0.001
48	Apparent power of B phase	kVA	dword	×0.001
50	Apparent power of C phase	kVA	dword	×0.001
52	Total apparent power	kVA	dword	×0.001
54	Power factor of A phase		word	×0.001
55	Power factor of B phase		word	×0.001
56	Power factor of C phase		word	×0.001
57	Total power factor		word	×0.001
58	State of DI		word
59	Frequency of power		word	×0.01
60	Total energy consumption	kWh	dword	×0.01
62	Forward active energy consumption	kWh	dword	×0.01
64	Reversing active energy consumption	kWh	dword	×0.01
66	Forward reactive energy consumption	kvarh	dword	×0.01
68	Reversing reactive energy consumption	kvarh	dword	×0.01
70	Total energy consumption on phase	kWh	dword	×0.01
72	Forward active energy consumption on phase	kWh	dword	×0.01
74	Reversing active energy consumption on phase	kWh	dword	×0.01
76	Consumption on A phase	kvarh	dword	×0.01
78	Reversing reactive energy consumption on phase	kvarh	dword	×0.01
80	Total energy consumption on B phase	kWh	dword	×0.01
82	Forward active energy consumption on B phase	kWh	dword	×0.01
84	Reversing active energy consumption on B phase	kWh	dword	×0.01
86	Forward reactive energy consumption on B phase	kvarh	dword	×0.01
88	Reversing reactive energy consumption on B phase	kvarh	dword	×0.01
90	Total energy consumption on phase	kWh	dword	×0.01
92	Forward active energy consumption on C phase	kWh	dword	×0.01
94	Reversing active energy consumption on C phase	kWh	dword	×0.01
96	Forward reactive energy consumption on C phase	kvarh	dword	×0.01
98	Reversing reactive energy consumption on C phase	kvarh	dword	×0.01
100	Maximum forward active demand in current month	kW	dword	×0.001

This is not the complete map: 50 of 130 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.

Acrel (DTSD1352) - MODBUS Maps

Connection and addressing notes

Protocol: Modbus RTU
Interface: RS-485 (two wires, shielded twisted pair)
Parity: none, even
Communication settings register: 003FH
Address register: 003FH high byte, range 1-247
Baud rate register: 003FH low byte, baud rate code
Function codes: 03H read, 10H write
Bus length: up to 1200 m

Registers in the map: 87 (the first 50 are listed below; the browser reader and the data loggers use the complete map). function 3 (holding registers). byte order big-endian. data types: dword, word.

MODBUS offset	Description	Units	Data type	Scale
0	Current total active energy	kWh	dword	formula
2	Current spike total active energy	kWh	dword	formula
4	Current peak total active energy	kWh	dword	formula
6	Current flat total active energy	kWh	dword	formula
8	Current valley total active energy	kWh	dword	formula
10	Current forward active total energy	kWh	dword	formula
12	Current forward active spike energy	kWh	dword	formula
14	Current forward active energy peak	kWh	dword	formula
16	Current forward active flat energy	kWh	dword	formula
18	Current forward active valley energy	kWh	dword	formula
20	Current reversing active total energy	kWh	dword	formula
22	Current reversing active spike energy		dword
24	Current reversing active energy peak		dword
26	Current reversing active flat energy		dword
28	Current reversing active valley energy		dword
30	Current total reactive energy		dword
32	Current total reactive spike energy		dword
34	Current total reactive peak energy		dword
36	Current total reactive flat energy		dword
38	Current total reactive energy valley		dword
40	Current forward reactive total energy		dword
42	Current forward reactive spike energy		dword
44	Current forward reactive energy peak		dword
46	Current forward reactive flat energy		dword
48	Current forward reactive valley energy		dword
50	Current reversing reactive total energy		dword
52	Current reversing reactive spike energy		dword
54	Current reversing reactive energy peak		dword
56	Current reversing reactive flat energy		dword
58	Current reversing reactive valley energy		dword
60	Time: second, minute		word
61	Time: hour; day		word
62	Time: month, year		word
64	Pulse constant		word
97	Voltage of A phase	V	word	formula
98	Voltage of B phase	V	word	formula
99	Voltage of C phase	V	word	formula
100	Current of phase A	A	word	formula
101	Current of phase B	A	word	formula
102	Current of phase C	A	word	formula
119	Frequency	Hz	word	formula
120	Voltage between A-B	V	word	formula
121	Voltage between C-B	V	word	formula
122	Voltage between A-C	V	word	formula
123	Forward active maximum demand		word
124	Time of occurrence: minute, hour		word
125	Time of occurrence: day, month		word
126	Reversing active maximum demand		word
127	Time of occurrence: minute, hour		word
128	Time of occurrence: day, month		word

This is not the complete map: 50 of 87 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.

Acrel (PZ300) - Measurement Data

Registers in the map: 35. function 3 (holding registers). byte order big-endian. data types: dword, word.

MODBUS offset	Description	Units	Data type	Scale
0	1 voltage effective value	V	dword	formula
2	2 voltage effective value		dword	formula
4	3 voltage effective value		dword	formula
6	Average voltage effective value		dword	formula
8	1 current effective value	A	dword	formula
10	2 current effective value		dword	formula
12	3 current effective value		dword	formula
14	Total current effective value		dword	formula
16	1 active power effective value	W	dword	formula
18	2 active power effective value		dword	formula
20	3 active power effective value		dword	formula
22	1 reactive power effective value	var	dword	formula
24	2 reactive power effective value		dword	formula
26	3 reactive power effective value		dword	formula
28	1 apparent power effective value	VA	dword	formula
30	2 apparent power effective value		dword	formula
32	3 apparent power effective value		dword	formula
34	1 power factor effective value		dword	formula
36	2 power factor effective value		dword	formula
38	3 power factor effective value		dword	formula
40	Total active power effective value	W	dword	formula
42	Total reactive power effective value	var	dword	formula
44	Total apparent power effective value	VA	dword	formula
46	Total power factor effective value		dword	formula
48	Frequency effective value	Hz	dword	formula
50	Pt ratio		word
51	Ct ratio		word
52	1 active electric energy		dword
54	2 active electric energy		dword
56	3 active electric energy		dword
58	Total active electric energy		dword
60	1 reactive electric energy	Wh	dword
62	2 reactive electric energy		dword
64	3 reactive electric energy		dword
66	Total reactive electric energy		dword

Acrel (PZ72-E3,P80-E3,PZ96-E3) - MODBUS Registers Map

Connection and addressing notes

Protocol: Modbus RTU
Interface: RS-485
Default baud rate: 9600 bps
Data bits: 8
Stop bits: 1
Parity: none
Default password: 0001
Checksum: CRC16
Device address range: 1-247
Baud rate register: 0001H low byte, 0 = 38400, 1 = 19200, 2 = 9600, 3 = 4800 bps
Additional selectable baud rates: 1200, 2400, 4800, 19200 bps
Function codes: 03H read, 04H read, 10H write

Registers in the map: 39. function 3 (holding registers). byte order big-endian. data types: dword, single, word.

MODBUS offset	Description	Units	Data type	Scale
3	Pt ratio		word
4	Ct ratio		word
35	Decimal point U		word	formula
36	Decimal point PQ		word	formula
34	The statement of relays		word
37	Phase voltage A	V	word	formula
38	Phase voltage B	V	word	formula
39	Phase voltage C	V	word	formula
40	Line voltage AB	V	word	formula
41	Line voltage BC	V	word	formula
42	Line voltage AC	V	word	formula
43	Ia	A	word	formula
44	Ib	A	word	formula
45	Ic	A	word	formula
46	Pa		word	formula
47	Pb		word	formula
48	Pc		word	formula
49	P total		word	formula
50	Qa		word	formula
51	Qb		word	formula
52	Qc		word	formula
53	Q total		word	formula
54	Cosa		word	×0.001
55	Cosb		word	×0.001
56	Cosc		word	×0.001
57	Cos total		word	×0.001
58	Sa		word
59	Sb		word
60	Sc		word
61	S total		word
62	Frequency F		word	×0.01
63	Measued im	kWh	dword	formula
65	Measued export	kWh	dword	formula
67	Measued import	kvarh	dword	formula
69	Measued export	kvarh	dword	formula
71	Real import	kWh	single
73	Real export	kWh	single
75	Real import	kvarh	single
77	Real export	kvarh	single

Acrel (PZ80) - MODBUS Maps

Registers in the map: 17. function 3 (holding registers). byte order big-endian. data types: dword, word.

MODBUS offset	Description	Units	Data type
0	Voltage (effective value)	V	word
1	Voltage (index)		word
2	Current (effective value)	A	word
3	Current (index)		word
4	Frequency (effective value)	Hz	word
5	Frequency (index)		word
6	Power factor (effective value)		word
7	Power factor (index)		word
8	Active power (effective value)	W	word
9	Active power (index)		word
10	Reactive power (effective value)	var	word
11	Reactive power (index)		word
12	Active energy	Wh	dword
14	Reactive energy	varh	dword
16	Pt ratio (pt)		word
17	Ct ratio (ct)		word
18	Alarm and I/O		word

Related MODBUS registers maps

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