Element
System

MODBUS TABLES
DIRIS MCM-48
v 1.46

Element > Power Metrology

Functions: Read holding registers (03)

Address (decimal)	Address (hex)	Size (registers)	Description	Unit	Data type
1001	0x03E9	2	Current Average Element	A	F32
1003	0x03EB	2	Current CH1	A	F32
1005	0x03ED	2	Current CH2	A	F32
1007	0x03EF	2	Current CH3	A	F32
1009	0x03F1	2	Residual Current	A	F32
1011	0x03F3	2	Watt Sum Element	kW	F32
1013	0x03F5	2	Watt CH1	kW	F32
1015	0x03F7	2	Watt CH2	kW	F32
1017	0x03F9	2	Watt CH3	kW	F32
1019	0x03FB	2	VA Sum Element	kVA	F32
1021	0x03FD	2	VA CH1	kVA	F32
1023	0x03FF	2	VA CH2	kVA	F32
1025	0x0401	2	VA CH3	kVA	F32
1027	0x0403	2	VAR Sum Element	kvar	F32
1029	0x0405	2	VAR CH1	kvar	F32
1031	0x0407	2	VAR CH2	kvar	F32
1033	0x0409	2	VAR CH3	kvar	F32
1035	0x040B	2	Watt Peak Demand Element	kW	F32
1037	0x040D	2	Watt Demand This Interval Element	kW	F32
1039	0x040F	2	VA Peak Demand Element	kVA	F32
1041	0x0411	2	VA Demand This Interval Element	kVA	F32

Element > Energy Metrology

Functions: Read holding registers (03)

Address (decimal)	Address (hex)	Size (registers)	Description	Unit	Data type
1043	0x0413	2	Load kWh Sum Element	kWh	F32
1045	0x0415	2	Load kWh CH1	kWh	F32
1047	0x0417	2	Load kWh CH2	kWh	F32
1049	0x0419	2	Load kWh CH3	kWh	F32
1051	0x041B	2	Load VAh Sum Element	kVAh	F32
1053	0x041D	2	Load VAh CH1	kVAh	F32
1055	0x041F	2	Load VAh CH2	kVAh	F32
1057	0x0421	2	Load VAh CH3	kVAh	F32
1059	0x0423	2	Load VARh Q1 Sum Element	kvarh	F32
1061	0x0425	2	Load VARh Q1 CH1	kvarh	F32
1063	0x0427	2	Load VARh Q1 CH2	kvarh	F32
1065	0x0429	2	Load VARh Q1 CH3	kvarh	F32
1067	0x042B	2	Load VARh Q2 Sum Element	kvarh	F32
1069	0x042D	2	Load VARh Q2 CH1	kvarh	F32
1071	0x042F	2	Load VARh Q2 CH2	kvarh	F32
1073	0x0431	2	Load VARh Q2 CH3	kvarh	F32
1075	0x0433	2	Net Active Energy Sum Element	kWh	F32
1077	0x0435	2	Net Active Energy CH1	kWh	F32
1079	0x0437	2	Net Active Energy CH2	kWh	F32
1081	0x0439	2	Net Active Energy CH3	kWh	F32
1083	0x043B	2	Net Apparent Energy Sum Element	kVAh	F32
1085	0x043D	2	Net Apparent Energy CH1	kVAh	F32
1087	0x043F	2	Net Apparent Energy CH2	kVAh	F32
1089	0x0441	2	Net Apparent Energy CH3	kVAh	F32
1091	0x0443	2	Net Reactive Energy Sum Element	kvarh	F32
1093	0x0445	2	Net Reactive Energy CH1	kvarh	F32
1095	0x0447	2	Net Reactive Energy CH2	kvarh	F32
1097	0x0449	2	Net Reactive Energy CH3	kvarh	F32
1099	0x044B	2	Source Energy Sum Element	kWh	F32
1101	0x044D	2	Source Energy CH1	kWh	F32
1103	0x044F	2	Source Energy CH2	kWh	F32
1105	0x0451	2	Source Energy CH3	kWh	F32
1107	0x0453	2	Source VAh Sum Element	kVAh	F32
1109	0x0455	2	Source VAh CH1	kVAh	F32
1111	0x0457	2	Source VAh CH2	kVAh	F32
1113	0x0459	2	Source VAh CH3	kVAh	F32
1115	0x045B	2	Source VARh Q3 Sum Element	kvarh	F32
1117	0x045D	2	Source VARh Q3 CH1	kvarh	F32
1119	0x045F	2	Source VARh Q3 CH2	kvarh	F32
1121	0x0461	2	Source VARh Q3 CH3	kvarh	F32
1123	0x0463	2	Source VARh Q4 Sum Element	kvarh	F32
1125	0x0465	2	Source VARh Q4 CH1	kvarh	F32
1127	0x0467	2	Source VARh Q4 CH2	kvarh	F32
1129	0x0469	2	Source VARh Q4 CH3	kvarh	F32

Element > Phasor Math

Functions: Read holding registers (03)

Address (decimal)	Address (hex)	Size (registers)	Description	Unit	Data type
1131	0x046B	2	Apparent PF Average Element	-	F32
1133	0x046D	2	Apparent PF CH1	-	F32
1135	0x046F	2	Apparent PF CH2	-	F32
1137	0x0471	2	Apparent PF CH3	-	F32
1139	0x0473	2	Displacement PF Average Element	-	F32
1141	0x0475	2	Displacement PF CH1	-	F32
1143	0x0477	2	Displacement PF CH2	-	F32
1145	0x0479	2	Displacement PF CH3	-	F32
1147	0x047B	2	Distortion PF Average Element	-	F32
1149	0x047D	2	Distortion PF CH1	-	F32
1151	0x047F	2	Distortion PF CH2	-	F32
1153	0x0481	2	Distortion PF CH3	-	F32
1155	0x0483	2	THD Average Element	%	F32
1157	0x0485	2	THD CH1	%	F32
1159	0x0487	2	THD CH2	%	F32
1161	0x0489	2	THD CH3	%	F32
1163	0x048B	2	Theta Element	-	F32
1165	0x048D	2	Theta CH1	°	F32
1167	0x048F	2	Theta CH2	°	F32
1169	0x0491	2	Theta CH3	°	F32

Element > Element Config

Functions: Read holding registers (03), Write single register (06)

Address (decimal)	Address (hex)	Size (registers)	Description	Unit	Data type
1501	0x05DD	16	Element Description	-	STRING_NORM
1517	0x05ED	1	Service Type Element 0 : 1 1 : 2 2 : 3 3 : 4 4 : 5	-	U16
1518	0x05EE	1	Breaker Type 0 : 1 1 : 2 2 : 3 3 : 4 4 : 5 5 : 6 6 : 7 7 : 8 8 : 9	-	U16
1519	0x05EF	1	CH1 CT Number	-	U16
1520	0x05F0	1	CT1 Voltage Reference 0 : 1 1 : 2 2 : 3 3 : 4 4 : 5 5 : 6	-	U16
1521	0x05F1	1	CT1 Type 0 : 0 1 : 1 2 : 2	-	U16
1522	0x05F2	2	CT1 Range	A	F32
1524	0x05F4	2	CT1 Phase Shift	°	F32
1526	0x05F6	2	CT1 Multiplier	-	F32
1528	0x05F8	1	CT1 CT Sign	-	U16
1529	0x05F9	1	CH2 CT Number	-	U16
1530	0x05FA	1	CT2 Voltage Reference	-	U16
1531	0x05FB	1	CT2 Type	-	U16
1532	0x05FC	2	CT2 Range	-	F32
1534	0x05FE	2	CT2 Phase Shift	-	F32
1536	0x0600	2	CT2 Multiplier	-	F32
1538	0x0602	1	CT2 CT Sign	-	U16
1539	0x0603	1	CH3 CT Number	-	U16
1540	0x0604	1	CT3 Voltage Reference	-	U16
1541	0x0605	1	CT3 Type	-	U16
1542	0x0606	2	CT3 Range	-	F32
1544	0x0608	2	CT3 Phase Shift	-	F32
1546	0x060A	2	CT3 Multiplier	-	F32
1548	0x060C	1	CT3 CT Sign	-	U16

Element > Element Commands

Functions: None

Address (decimal)	Address (hex)	Size (registers)	Description	Unit	Data type
1606	0x0646	1	Clear Accumulated Measurements Element	-	U16
1607	0x0647	1	Reserved	-	-
1608	0x0648	1	Clear Peak Demand Element	-	U16

Element > Optimized Radio Block

Functions: Read holding registers (03)

Address (decimal)	Address (hex)	Size (registers)	Description	Unit	Data type
1901	0x076D	2	Voltage L1-N	V	F32
1903	0x076F	2	Voltage L2-N	V	F32
1905	0x0771	2	Voltage L3-N	V	F32
1907	0x0773	2	Voltage L1-L2	V	F32
1909	0x0775	2	Voltage L2-L3	V	F32
1911	0x0777	2	Voltage L3-L1	V	F32
1913	0x0779	2	Line Frequency	Hz	F32
1915	0x077B	2	Current CH1	A	F32
1917	0x077D	2	Current CH2	A	F32
1919	0x077F	2	Current CH3	A	F32
1921	0x0781	2	Watt Sum Element	kW	F32
1923	0x0783	2	Watt CH1	kW	F32
1925	0x0785	2	Watt CH2	kW	F32
1927	0x0787	2	Watt CH3	kW	F32
1929	0x0789	2	VA Sum Element	kVA	F32
1931	0x078B	2	VA CH1	kVA	F32
1933	0x078D	2	VA CH2	kVA	F32
1935	0x078F	2	VA CH3	kVA	F32
1937	0x0791	2	VAR Sum Element	kvar	F32
1939	0x0793	2	VAR CH1	kvar	F32
1941	0x0795	2	VAR CH2	kvar	F32
1943	0x0797	2	VAR CH3	kvar	F32
1945	0x0799	2	Load kWh Sum Element	kWh	F32
1947	0x079B	2	Load kWh CH1	kWh	F32
1949	0x079D	2	Load kWh CH2	kWh	F32
1951	0x079F	2	Load kWh CH3	kWh	F32
1953	0x07A1	2	Load VAh Sum Element	kVAh	F32
1955	0x07A3	2	Apparent PF Average Element	-	F32
1957	0x07A5	2	Apparent PF CH1	-	F32
1959	0x07A7	2	Apparent PF CH2	-	F32
1961	0x07A9	2	Apparent PF CH3	-	F32
1963	0x07AB	2	Displacement PF Average Element	-	F32
1965	0x07AD	2	Displacement PF CH1	-	F32
1967	0x07AF	2	Displacement PF CH2	-	F32
1969	0x07B1	2	Displacement PF CH3	-	F32
1971	0x07B3	2	Watt Demand This Interval Element	kW	F32
1973	0x07B5	2	VA Demand This Interval Element	kVA	F32
1975	0x07B7	2	Load VARh Q1 Sum Element	kvarh	F32
1977	0x07B9	2	Load VARh Q4 Sum Element	kvarh	F32

System > System Metrology

Functions: Read holding registers (03), Write single register (06)

Address (decimal)	Address (hex)	Size (registers)	Description	Unit	Data type
101	0x0065	2	Voltage L-N Avg Element	V	F32
103	0x0067	2	Voltage L1-N	V	F32
105	0x0069	2	Voltage L2-N	V	F32
107	0x006B	2	Voltage L3-N	V	F32
109	0x006D	2	Voltage L-L Avg Element	V	F32
111	0x006F	2	Voltage L1-L2	V	F32
113	0x0071	2	Voltage L2-L3	V	F32
115	0x0073	2	Voltage L3-L1	V	F32
117	0x0075	2	Line Frequency	Hz	F32
119	0x0077	2	Time Since Reset	s	U32

System > Metrology Config

Functions: Read holding registers (03), Write single register (06)

Address (decimal)	Address (hex)	Size (registers)	Description	Unit	Data type
501	0x01F5	2	Volt Multiplier	-	F32
503	0x01F7	2	Millivolt Snap Threshold	-	F32
505	0x01F9	2	RoCoil Snap Threshold	-	F32
507	0x01FB	2	Voltage Snap Threshold	V	F32
509	0x01FD	2	RoCoil Millivolt per Kiloamp	-	F32

System > Identification

Functions: Read holding registers (03)

Address (decimal)	Address (hex)	Size (registers)	Description	Unit	Data type
301	0x012D	8	Manufacturer	-	STRING_NORM
309	0x0135	8	Model	-	STRING_NORM
317	0x013D	8	Version	-	STRING_NORM
325	0x0145	8	Serial Number	-	STRING_NORM
333	0x014D	32	Power Meter Description	-	STRING_NORM

System > Real Time Clock

Functions: Read holding registers (03), Write single register (06)

Address (decimal)	Address (hex)	Size (registers)	Description	Unit	Data type
121	0x0079	2	Real Time Clock	s	U32

System > Communications Interface > Ethernet

Functions: Read holding registers (03), Write single register (06)

Address (decimal)	Address (hex)	Size (registers)	Description	Unit	Data type
401	0x0191	1	DHCP/Static Config 0 : Static 1 : DHCP	-	U8
402	0x0192	1	NTP/DNS Control 0 : DNS 1 : NTP	-	U8
403	0x0193	8	IP Address	-	STRING_NORM
411	0x019B	8	Netmask	-	STRING_NORM
419	0x01A3	8	Gateway	-	STRING_NORM
427	0x01AB	8	DNS1 Address	-	STRING_NORM
435	0x01B3	8	DNS2 Address	-	STRING_NORM

System > Communications Interface > MAC Address

Functions: Read holding registers (03)

Address (decimal)	Address (hex)	Size (registers)	Description	Unit	Data type
443	0x01BB	4	MAC Address	-	U64

System > Communications Interface > Serial Settings

Functions: Read holding registers (03), Write single register (06)

Address (decimal)	Address (hex)	Size (registers)	Description	Unit	Data type
447	0x01BF	1	Serial Dev Address	-	U16
448	0x01C0	2	Serial Baud Rate	-	U32
450	0x01C2	1	Serial Data Bits 0 : 1 1 : 2 2 : 3 3 : 4 4 : 5 5 : 6 6 : 7 7 : 8	-	U8
451	0x01C3	1	Serial Parity 0 : 0 1 : 1 2 : 2	-	U8
452	0x01C4	1	Communications Protocol 0 : Modbus 1 : BACnet	-	U8

System > Communications Interface > BACnet Port

Functions: Read holding registers (03), Write single register (06)

Address (decimal)	Address (hex)	Size (registers)	Description	Unit	Data type
453	0x01C5	1	BACnet UDP Port	-	U16

System > Communications Interface > BACnet Settings

Functions: Read holding registers (03), Write single register (06)

Address (decimal)	Address (hex)	Size (registers)	Description	Unit	Data type
456	0x01C8	2	BACnet Device ID	-	U32
458	0x01CA	1	BACnet Max Info Frames	-	U16
459	0x01CB	1	BACnet Max Masters	-	U16
460	0x01CC	8	BBMD IP Address	-	STRING_NORM

System > Communications Interface > BACnet Vendor ID

Functions: Read holding registers (03)

Address (decimal)	Address (hex)	Size (registers)	Description	Unit	Data type
454	0x01C6	2	BACnet Vendor ID	-	U32

System > Commands > Access Key

Functions: Read holding registers (03), Write single register (06)

Address (decimal)	Address (hex)	Size (registers)	Description	Unit	Data type
601	0x0259	1	Access Key	-	U16

System > Commands > Customer Config

Functions: Read holding registers (03)

Address (decimal)	Address (hex)	Size (registers)	Description	Unit	Data type
602	0x025A	1	Customer ID	-	U16
603	0x025B	1	Features Config	-	U16

System > Commands > Resets

Functions: None

Address (decimal)	Address (hex)	Size (registers)	Description	Unit	Data type
604	0x025C	1	Reset Processor	-	U16
605	0x025D	1	Clear Accumulated Measurements All	-	U16
606	0x025E	1	Reserved	-	-
607	0x025F	1	Clear Peak Demand All	-	U16

System > Commands > Password

Functions: Read holding registers (03), Write single register (06)

Address (decimal)	Address (hex)	Size (registers)	Description	Unit	Data type
609	0x0261	1	Reserved	-	-
610	0x0262	1	Reserved	-	-

System > Commands > Communication Timeout

Functions: Read holding registers (03), Write single register (06)

Address (decimal)	Address (hex)	Size (registers)	Description	Unit	Data type
611	0x0263	1	Reserved	-	-

System > Commands > Register Address Mode

Functions: Read holding registers (03), Write single register (06)

Address (decimal)	Address (hex)	Size (registers)	Description	Unit	Data type
612	0x0264	1	Reserved	-	-

Documentation

Modbus protocol

Please refer to the protocol specifications of the Modbus Organization for more information.

Supported functions

• 3 : Read multiple registers
• 6 : Write single register

Deviation from protocol

The data is presented as groups of meaningful information called "tables". A Read or Write multiple registers command may only include registers of a single table, otherwise the product will return an error code.

Data encoding/decoding

Reserved registers

A register labelled "Reserved" in the documentation indicates it is not available on this product.

Types

Type	Description	# Registers	Decoding pseudo-code	Reserved value (see below *)
U8	Unsigned 8-bit integer	1	Value = (uint8_t)(reg[0] & 0x00FF)	0xFF
U16	Unsigned 16-bit integer	1	Value = (uint16_t)reg[0]	0xFFFF
U32	Unsigned 32-bit integer	2	Value = (uint32_t)((reg[0] << 16) + reg[1])	0xFFFF FFFF
U64	Unsigned 64-bit integer	4	Value = (uint64_t)((reg[0] << 48) + (reg[1] << 32) + (reg[2] << 16) + reg[3])	0xFFFF FFFF FFFF FFFF
F32	32-bit single-precision floating point number (IEEE 754)	2	Value = (float32_t)((reg[0] << 16) + reg[1])	0xFFFF FFFF
STRING_NORM	UTF-8 encoded string of 8-bit characters where each register contains two characters in normal order, e.g. "abcd" is encoded as "abcd": [0]0xaabb [1]0xccdd	N	Example of a four character string "abcd" encoded in two registers: "a" = (char_t)((reg[0] >> 8) & 0x00FF) "b" = (char_t)(reg[0] & 0x00FF) "c" = (char_t)((reg[1] >> 8) & 0x00FF) "d" = (char_t)(reg[1] & 0x00FF)	-

* Reserved value : A special value that usually indicates the data for this field is not available (e.g. function not enabled, status not available, etc.)

MODBUS TABLESDIRIS MCM-48 v 1.46

Element > Power Metrology

Element > Energy Metrology

Element > Phasor Math

Element > Element Config

Element > Element Commands

Element > Optimized Radio Block

System > System Metrology

System > Metrology Config

System > Identification

System > Real Time Clock

System > Communications Interface > Ethernet

System > Communications Interface > MAC Address

System > Communications Interface > Serial Settings

System > Communications Interface > BACnet Port

System > Communications Interface > BACnet Settings

System > Communications Interface > BACnet Vendor ID

System > Commands > Access Key

System > Commands > Customer Config

System > Commands > Resets

System > Commands > Password

System > Commands > Communication Timeout

System > Commands > Register Address Mode

Documentation

Modbus protocol

Supported functions

Deviation from protocol

Data encoding/decoding

Reserved registers

Types

MODBUS TABLES - DIRIS MCM-48 - v 1.46

MODBUS TABLES
DIRIS MCM-48
v 1.46