Schneider Electric iEM2050

Name: Schneider Electric iEM2050
Brand: Schneider Electric
SKU: 97a79c64-567c-407c-be28-82b0a9a00fd4

Single phase DIN rail energy meter for power, energy and two tariffs.

The Schneider Electric iEM2050 is a single phase DIN rail energy meter that measures current, voltage, power and energy for a group, a tenant or a single load. This Modbus RTU template reads all measurements and energy counters in two tariffs, and lets you send tariff, reset and pulse output commands from ModbusCloud.

Protocol: Modbus RTU
Connection: RS485, 9600 baud
Registers: 192, read and write

Brand: Schneider Electric
Key readings: Current · Voltage · Active power · Power factor · Frequency · Active energy import and export · Energy per tariff
Available commands: Active tariff · Partial energy reset · Pulse output rate
Compatible models: iEM2050 (A9MEM2050)
Last updated: 19 October 2026

Registers (192)

68 read, 126 write

Name	Unit	Access
Current	A	Read
Voltage	V	Read
Active Power	kW	Read
Reactive Power	kvar	Read
Apparent Power	kVA	Read
Power Factor		Read
Frequency	Hz	Read
Forward Active Energy Wh	Wh	Read
Reverse Active Energy Wh	Wh	Read
Total Active Energy Wh	Wh	Read
Forward Reactive Energy varh	varh	Read
Reverse Reactive Energy varh	varh	Read
Total Reactive Energy varh	varh	Read
Forward Partial Active Energy Wh	Wh	Read
T1 Forward Active Energy Wh	Wh	Read
T2 Forward Active Energy Wh	Wh	Read
T1 Reverse Active Energy Wh	Wh	Read
T2 Reverse Active Energy Wh	Wh	Read
T1 Total Active Energy Wh	Wh	Read
T2 Total Active Energy Wh	Wh	Read
T1 Forward Reactive Energy varh	varh	Read
T2 Forward Reactive Energy varh	varh	Read
T1 Reverse Reactive Energy varh	varh	Read
T2 Reverse Reactive Energy varh	varh	Read
T1 Total Reactive Energy varh	varh	Read
T2 Total Reactive Energy varh	varh	Read
Forward Active Energy Float	Wh	Read
Reverse Active Energy Float	Wh	Read
Forward Reactive Energy Float	varh	Read
Reverse Reactive Energy Float	varh	Read
Forward Partial Active Energy Float	Wh	Read
Total Active Energy Float	Wh	Read
Total Reactive Energy Float	varh	Read
T1 Forward Active Energy Float	Wh	Read
T2 Forward Active Energy Float	Wh	Read
T1 Reverse Active Energy Float	Wh	Read
T2 Reverse Active Energy Float	Wh	Read
T1 Total Active Energy Float	Wh	Read
T2 Total Active Energy Float	Wh	Read
T1 Forward Reactive Energy Float	varh	Read
T2 Forward Reactive Energy Float	varh	Read
T1 Reverse Reactive Energy Float	varh	Read
T2 Reverse Reactive Energy Float	varh	Read
T1 Total Reactive Energy Float	varh	Read
T2 Total Reactive Energy Float	varh	Read
Active Tariff		Read
Diagnostics Error		Read
Power On Off Counter		Read
Requested Command		Write
Command Parameter 001		Write
Command Parameter 002		Write
Command Parameter 003		Write
Command Parameter 004		Write
Command Parameter 005		Write
Command Parameter 006		Write
Command Parameter 007		Write
Command Parameter 008		Write
Command Parameter 009		Write
Command Parameter 010		Write
Command Parameter 011		Write
Command Parameter 012		Write
Command Parameter 013		Write
Command Parameter 014		Write
Command Parameter 015		Write
Command Parameter 016		Write
Command Parameter 017		Write
Command Parameter 018		Write
Command Parameter 019		Write
Command Parameter 020		Write
Command Parameter 021		Write
Command Parameter 022		Write
Command Parameter 023		Write
Command Parameter 024		Write
Command Parameter 025		Write
Command Parameter 026		Write
Command Parameter 027		Write
Command Parameter 028		Write
Command Parameter 029		Write
Command Parameter 030		Write
Command Parameter 031		Write
Command Parameter 032		Write
Command Parameter 033		Write
Command Parameter 034		Write
Command Parameter 035		Write
Command Parameter 036		Write
Command Parameter 037		Write
Command Parameter 038		Write
Command Parameter 039		Write
Command Parameter 040		Write
Command Parameter 041		Write
Command Parameter 042		Write
Command Parameter 043		Write
Command Parameter 044		Write
Command Parameter 045		Write
Command Parameter 046		Write
Command Parameter 047		Write
Command Parameter 048		Write
Command Parameter 049		Write
Command Parameter 050		Write
Command Parameter 051		Write
Command Parameter 052		Write
Command Parameter 053		Write
Command Parameter 054		Write
Command Parameter 055		Write
Command Parameter 056		Write
Command Parameter 057		Write
Command Parameter 058		Write
Command Parameter 059		Write
Command Parameter 060		Write
Command Parameter 061		Write
Command Parameter 062		Write
Command Parameter 063		Write
Command Parameter 064		Write
Command Parameter 065		Write
Command Parameter 066		Write
Command Parameter 067		Write
Command Parameter 068		Write
Command Parameter 069		Write
Command Parameter 070		Write
Command Parameter 071		Write
Command Parameter 072		Write
Command Parameter 073		Write
Command Parameter 074		Write
Command Parameter 075		Write
Command Parameter 076		Write
Command Parameter 077		Write
Command Parameter 078		Write
Command Parameter 079		Write
Command Parameter 080		Write
Command Parameter 081		Write
Command Parameter 082		Write
Command Parameter 083		Write
Command Parameter 084		Write
Command Parameter 085		Write
Command Parameter 086		Write
Command Parameter 087		Write
Command Parameter 088		Write
Command Parameter 089		Write
Command Parameter 090		Write
Command Parameter 091		Write
Command Parameter 092		Write
Command Parameter 093		Write
Command Parameter 094		Write
Command Parameter 095		Write
Command Parameter 096		Write
Command Parameter 097		Write
Command Parameter 098		Write
Command Parameter 099		Write
Command Parameter 100		Write
Command Parameter 101		Write
Command Parameter 102		Write
Command Parameter 103		Write
Command Parameter 104		Write
Command Parameter 105		Write
Command Parameter 106		Write
Command Parameter 107		Write
Command Parameter 108		Write
Command Parameter 109		Write
Command Parameter 110		Write
Command Parameter 111		Write
Command Parameter 112		Write
Command Parameter 113		Write
Command Parameter 114		Write
Command Parameter 115		Write
Command Parameter 116		Write
Command Parameter 117		Write
Command Parameter 118		Write
Command Parameter 119		Write
Command Parameter 120		Write
Command Parameter 121		Write
Command Parameter 122		Write
Command Parameter 123		Write
Command Status		Read and write
Command Result		Read and write
Number of Phases		Read
Number of Wires		Read
Power System		Read
Nominal Frequency	Hz	Read
Meter Amps	A	Read
LCD Cycle Time	s	Read
Modbus Address		Read
Baud Rate		Read
Parity		Read
S0 Output Rate		Read
Combined Code		Read
Meter Name		Read
Meter Model		Read
Manufacturer		Read
Meter Code		Read
Serial Number		Read
Hardware Revision		Read
Firmware Version		Read

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Use cases

Track the consumption of a group or tenant on a dashboard with power and energy.
Get an alert when active power passes a threshold you set for that group.
Keep a year of energy history per meter to compare months and spot unusual use.
Split consumption into tariff 1 and tariff 2 with the tariff counters.
Get an alert when the diagnostics code reports a software or memory error.

Installation

Connect terminals 23 and 24 of the meter to the RS485 port of the ModbusCloud Gateway, with termination at both ends of the bus.
Check address, speed and parity on the meter display; the default is address 1, 9600 baud, even parity.
In ModbusCloud, add a Modbus device with the same settings and import this template.
Check that voltage and frequency come in with plausible values, then compare the energy counter with the display.

Things to watch for

The meter does not answer. What should I check?

Check that address, speed and parity in ModbusCloud match the meter. The default is address 1, 9600 baud, 8 data bits, even parity and 1 stop bit; the meter supports 1200 to 9600 baud only. Swap the wires on terminals 23 and 24 if nothing answers, and terminate the bus at both ends.

Current or voltage shows a strange value. What now?

Compare the value with the meter display. If all readings are clearly wrong at once, check that the device in ModbusCloud uses this template without changed addresses and that no other master polls the same bus. Several masters on one RS485 line corrupt each other's answers.

How do I change the tariff or reset the day counter?

The meter takes settings only as commands. Write the command number to Requested Command with its parameters in one write, for example 2008 for Set Tariff with 1 or 2, or 2020 to reset the partial energy. Then read Command Result: 0 means accepted, 3000 to 3007 mean rejected.

Several meters share one RS485 line. How do I set that up?

Give every meter its own address with the same speed and parity, wire them as a line from meter to meter and terminate both ends. In ModbusCloud each meter becomes its own Modbus device with this template.

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