Iskra ECS3, MT880, CM-f3e MODBUS registers: read online

Connect Iskra 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 Iskra logger and poll.

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

Iskra (ECS3) - MODBUS Maps

Connection and addressing notes

Protocol: Modbus
Interface variants: Basic and Full
Register addressing: register addresses used directly as map offsets
Speed register: 4112
Parity register: 4113
Stop bits register: 4114
Device address register: 4115
Value format register: 4117
Unsupported quantities: returned as 0

Registers in the map: 69 (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, int64, word.

MODBUS offset	Description	Units	Data type	Scale
4099	Device type		word
4100	Firmware version		word
4101	Range overflow alarm		word
4102	Running tariff		dword
4104	PID bytes 1 and 2		word
4105	PID bytes 3 and 4		word
4106	PID bytes 5 and 6		word
4107	PID bytes 7 and 8		word
4108	PID bytes 9 and 10		word
4109	PID bytes 11 and 12		word
4110	PID bytes 13 and 14		word
4119	Active energy 1st phase T1, imp	kWh	int64	formula
4123	Active energy 2nd phase T1, imp	kWh	int64	formula
4127	Active energy 3rd phase T1, imp	kWh	int64	formula
4131	Active energy sum T1, imp	kWh	int64	formula
4135	Active energy 1st phase T2, imp	kWh	int64	formula
4139	Active energy 2nd phase T2, imp	kWh	int64	formula
4143	Active energy 3rd phase T2, imp	kWh	int64	formula
4147	Active energy sum T2, imp	kWh	int64	formula
4151	Active power 1st phase		dword
4153	Active power 2nd phase		dword
4155	Active power 3rd phase		dword
4157	Active power sum		int64	formula
4161	Active energy 1st phase T1, exp	kWh	int64	formula
4165	Active energy 2nd phase T1, exp	kWh	int64	formula
4169	Active energy 3rd phase T1, exp	kWh	int64	formula
4173	Active energy sum T1, exp	kWh	int64	formula
4177	Active energy 1st phase T2, exp	kWh	int64	formula
4181	Active energy 2nd phase T2, exp	kWh	int64	formula
4185	Active energy 3rd phase T2, exp	kWh	int64	formula
4189	Active energy sum T2, exp	kWh	int64	formula
4193	Reactive energy 1st phase T1, imp	kvarh	int64	formula
4197	Reactive energy 2nd phase T1, imp	kvarh	int64	formula
4201	Reactive energy 3rd phase T1, imp	kvarh	int64	formula
4205	Reactive energy sum T1, imp	kvarh	int64	formula
4209	Reactive energy 1st phase T2, imp	kvarh	int64	formula
4213	Reactive energy 2nd phase T2, imp	kvarh	int64	formula
4217	Reactive energy 3rd phase T2, imp	kvarh	int64	formula
4221	Reactive energy sum T2, imp	kvarh	int64	formula
4225	Reactive energy 1st phase T1, exp	kvarh	int64	formula
4229	Reactive energy 2nd phase T1, exp	kvarh	int64	formula
4233	Reactive energy 3rd phase T1, exp	kvarh	int64	formula
4237	Reactive energy sum T1, exp	kvarh	int64	formula
4241	Reactive energy 1st phase T2, exp	kvarh	int64	formula
4245	Reactive energy 2nd phase T2, exp	kvarh	int64	formula
4249	Reactive energy 3rd phase T2, exp	kvarh	int64	formula
4253	Reactive energy sum T2, exp	kvarh	int64	formula
4257	Reactive power 1st phase	kvar	dword
4259	Reactive power 2nd phase	kvar	dword
4261	Reactive power 3rd phase	kvar	dword

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.

Iskra (MT880,CM-f3e) - MODBUS Values

Connection and addressing notes

Protocol: Modbus
Function codes: 03 read holding registers
Register addressing: register numbers start at 0 and are used directly as map offsets
Data format: 16-bit integer, 32-bit long, IEEE 754 float, 64-bit double
Energy and demand scaling: 10x relative to the meter measurement resolution (100 mWh default)
Configuration: Modbus parameters are set over the module web GUI

Registers in the map: 168 (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: double, integer, single.

MODBUS offset	Description	Units	Data type
0	Device id 1, manufacturing number		integer
2	Current system time		integer
5	Current system date		integer
8	Active energy import (+a)		double
12	Active energy export (a)		double
16	Reactive energy import (+r)		double
20	Reactive energy export ( r)		double
24	Reactive energy Q1 (+ri)		double
28	Reactive energy Q2 (+rc)		double
32	Reactive energy Q3 ( ri)		double
36	Reactive energy Q4 ( rc)		double
40	Apparent energy import (+va) (Q1 + Q4)		double
44	Apparent energy export (Q2 + Q3)	VA	double
48	Active energy import (+a) L1		double
52	Active energy import (+a) L2		double
56	Active energy import (+a) L3		double
60	Active energy export ( a) L1		double
64	Active energy export ( a) L2		double
68	Active energy export ( a) L3		double
72	Reactive energy import (+r) L1		double
76	Reactive energy import (+r) L2		double
80	Reactive energy import (+r) L3		double
84	Reactive energy export ( r) L1		double
88	Reactive energy export ( r) L2		double
92	Reactive energy export ( r) L3		double
96	Reactive energy Q1 (+ri) L1		double
100	Reactive energy Q1 (+ri) L2		double
104	Reactive energy Q1 (+ri) L3		double
108	Reactive energy Q2 (+rc) L1		double
112	Reactive energy Q2 (+rc) L2		double
116	Reactive energy Q2 (+rc) L3		double
120	Reactive energy Q3 ( ri) L1		double
124	Reactive energy Q3 ( ri) L2		double
128	Reactive energy Q3 ( ri) L3		double
132	Reactive energy Q4 ( rc) L1		double
136	Reactive energy Q4 ( rc) L2		double
140	Reactive energy Q4 ( rc) L3		double
144	Apparent energy import (+va) (Q1 + Q4) L1		double
148	Apparent energy import (+va) (Q1 + Q4) L2		double
152	Apparent energy import (+va) (Q1 + Q4) L3		double
156	Apparent energy export (Q2 + Q3) L1	VA	double
160	Apparent energy export (Q2 + Q3) L2	VA	double
164	Apparent energy export (Q2 + Q3) L3	VA	double
168	Instantaneous active power (\|+a\|+\| a\|)		single
170	Instantaneous active import power (+a)		single
172	Instantaneous active import power (+a) L1		single
174	Instantaneous active import power (+a) L2		single
176	Instantaneous active import power (+a) L3		single
178	Instantaneous active export power ( a)		single
180	Instantaneous active export power ( a) L1		single

This is not the complete map: 50 of 168 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.

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.

Iskra ECS3, MT880, CM-f3e MODBUS registers: read online

Iskra (ECS3) - MODBUS Maps

Iskra (MT880,CM-f3e) - MODBUS Values

Related MODBUS registers maps

MODBUS COM Port Connection

Feature Not Supported