GE EPM 5100, EPM 5300 MODBUS registers: read online

Connect GE 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 GE modbus logging and log.

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GE (EPM 5100) - MODBUS Values

Registers in the map: 94 (the first 79 are listed below; the browser reader and the data loggers use the complete map). function 1 (coil status). function 3 (holding registers). function 4 (input registers). byte order big-endian. data types: integer, single, smallint, word.

MODBUS offset	Description	Units	Data type	Scale
0	Clear power demand	W	word
1	Initialize meter		word
2	Clear energy (var-hour)		word
3	Clear meter errors		word
6	Firmware revision		single	formula
8	COC software revision		single	formula
4	Serial number		integer
3000	Hour		smallint
3001	Minute		smallint
3002	Seconds		smallint
3005	Pulse value interval time for pulse KYZ output 1		single
3007	Pulse value interval time for pulse KYZ output 2		single
3009	Pulse units for KYZ output 1		word
3010	Pulse units for KYZ output 2		word
3011	Programming flags		word
3013	Demand interval length (in minutes)		smallint
3014	Number of sub-intervals		smallint
3015	Display scroll time		smallint
3016	Meter configuration		word
3017	Potential transformer ratio		single
3019	Current transformer ratio		single
3021	Energy display format		word
3022	Demand display format		word
3023	Voltage display format		word
3024	Amps display format		word
3025	Energy display scale (kWh, MWh)		word
3026	Demand display scale (W, kW, MW)		word
3027	Voltage display scale (V, kV)		word
3028	Amps display scale (A, kA)		word
1000	Number of pending event messages		smallint
1002	kVA max, total of all phases	kVA	single
1004	kW max, total of all phases	kW	single
1006	Kvar lag max, total of all phases	kvar	single
1008	Kvar lead max, total of all phases	kvar	single
1010	Current max phase A	A	single
1012	Current max phase B	A	single
1014	Current max phase C	A	single
1016	Kvarh lag, total of all phases	kvar	single
1018	Kvarh lead, total of all phases	kvar	single
1020	kWh, total of all phases	kW	single
1022	kQh, total of all phases		single
1024	kVAh, total of all phases	kVA	single
1026	Average power factor since last reset, all phases		single
1028	Power factor, total of all phases, at maximum	kVA	single
1030	Apparent power demand , total of all phases	kVA	single
1032	Real power demand total of all phases	kW	single
1034	Reactive power demand (kvar lag), total of all phases	kvar	single
1036	Reactive power demand (kvar lead), total of all phases	kvar	single
1038	Current demand, phase A	A	single
1040	Current demand, phase B	A	single
1042	Current demand, phase C	A	single
1044	Power factor, all phases (over last demand interval)		single
1046	Real power , phase A	kW	single
1048	Real power , phase B	kW	single
1050	Real power , phase C	kW	single
1052	Reactive power , phase A	kvar	single
1054	Reactive power , phase B	kvar	single
1056	Reactive power , phase C	kvar	single
1058	Apparent power , phase A	kVA	single
1060	Apparent power , phase B	kVA	single
1062	Apparent power , phase C	kVA	single
1064	Power factor, phase A		single
1066	Power factor, phase B		single
1068	Power factor, phase C		single
1070	Apparent power , total of all phases	kVA	single
1072	Real power , total of all phases	kW	single
1074	Reactive power , total of all phases	kvar	single
1076	L-N voltage, phase A-N	V	single
1078	L-N voltage, phase B-N	V	single
1080	L-N voltage, phase C-N	V	single
1082	L-L voltage, phase A-B	V	single
1084	L-L voltage, phase B-C	V	single
1086	L-L voltage, phase C-A	V	single
1088	Total power factor of all phases		single
1090	Real power , total of all phases at maximum kVA	kW	single
1092	Current, phase A	A	single
1094	Current, phase B	A	single
1096	Current, phase C	A	single
1098	Neutral current	A	single

This is not the complete map: 79 of 94 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.

GE (EPM 5300) - MODBUS Registers Map

Registers in the map: 132 (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: word.

MODBUS offset	Description	Data type
278	Volt an, Instant	word
317	Volt an, Average	word
356	Volt an, Max	word
395	Volt an, Min	word
279	Volt bn, Instant	word
318	Volt bn, Average	word
357	Volt bn, Max	word
396	Volt bn, Min	word
280	Volt cn, Instant	word
319	Volt cn, Average	word
358	Volt cn, Max	word
397	Volt cn, Min	word
281	Volt ab, Instant	word
320	Volt ab, Average	word
359	Volt ab, Max	word
398	Volt ab, Min	word
282	Volt bc, Instant	word
321	Volt bc, Average	word
360	Volt bc, Max	word
399	Volt bc, Min	word
283	Volt ca, Instant	word
322	Volt ca, Average	word
361	Volt ca, Max	word
400	Volt ca, Min	word
284	Amp A, Instant	word
323	Amp A, Average	word
362	Amp A, Max	word
401	Amp A, Min	word
285	Amp B, Instant	word
324	Amp B, Average	word
363	Amp B, Max	word
402	Amp B, Min	word
286	Amp C, Instant	word
325	Amp C, Average	word
364	Amp C, Max	word
403	Amp C, Min	word
287	Amp N, Instant	word
326	Amp N, Average	word
365	Amp N, Max	word
404	Amp N, Min	word
288	Watt, Instant	word
327	Watt, Average	word
366	Watt, Max	word
405	Watt, Min	word
289	Var, Instant	word
328	Var, Average	word
367	Var, Max	word
406	Var, Min	word
290	Va, Instant	word
329	Va, Average	word

This is not the complete map: 50 of 132 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.

GE (EPM 6000) - Measurement Data

Connection and addressing notes

Protocol: Modbus RTU
Default password: 5555
Password usage: 5555 is used when passwords are disabled in the programmable settings
COM1 setup register: 30025 (0x7548)
COM1 protocol field: ppp, 1 = Modbus RTU, 2 = Modbus ASCII, 3 = DNP
COM1 baud rate field: bbb, 1 = 9600, 2 = 19200, 4 = 38400, 6 = 57600
COM1 reply delay field: dddd, reply delay x 50 ms
COM2 setup register: 30026
COM2 address register: 30027, range 1-247
Word order: high order half in the lower addressed register
Undefined registers: read as 0

Registers in the map: 102 (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, integer, single, smallint, string(16), string(4), word.

MODBUS offset	Description	Data type
17	Firmware version	string(4)
19	Map version	word
21	ASIC version	word
0	Meter name	string(16)
8	Meter serial number	string(16)
16	Meter type	word
20	Meter configuration	word
39	GE part number	string(16)
899	Watts, 3-Ph total	single
901	VARs, 3-Ph total	single
903	VAs, 3-Ph total	single
999	Volts A-N	single
1001	Volts B-N	single
1003	Volts C-N	single
1005	Volts A-B	single
1007	Volts B-C	single
1009	Volts C-A	single
1011	Amps A	single
1013	Amps B	single
1015	Amps C	single
1017	Watts, 3-Ph total	single
1019	VARs, 3-Ph total	single
1021	VAs, 3-Ph total	single
1023	Power factor, 3-Phtotal	single
1025	Frequency	single
1027	Neutral current	single
1099	W-hours, received	integer
1101	W-hours, delivered	integer
1103	W-hours, net	integer
1105	W-hours, total	integer
1107	VAR-hours, positive	integer
1109	VAR-hours, negative	integer
1111	VAR-hours, net	integer
1113	VAR-hours, total	integer
1115	VA-hours, total	integer
1999	Amps a, average	single
2001	Amps b, average	single
2003	Amps c, average	single
2005	Positive watts, 3-Ph,Average	single
2007	Positive VARs, 3-Ph,Average	single
2009	Negative watts, 3-Ph,Average	single
2013	VAs, 3-Ph, average	single
2015	Positive PF, 3-Ph,Average	single
2017	Negative PF, 3-PF,Average	single
2999	Volts A-N, minimum	single
3001	Volts B-N, minimum	single
3003	Volts C-N, minimum	single
3005	Volts A-B, minimum	single
3999	Volts A-N, %THD	word
4000	Volts B-N, %THD	word

This is not the complete map: 50 of 102 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.

GE (EPM 7000,EPM 7100) - MODBUS Measurements

Registers in the map: 150 (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: integer, single, smallint, string(16), string(4), string(8), word.

MODBUS offset	Description	Data type
17	Firmware version	string(4)
19	Map version	word
21	ASIC version	word
22	Boot Firmware Version	string(4)
0	Meter name	string(16)
8	Meter SerialNumber	string(16)
16	Meter type	word
20	MeterConfiguration	word
24	Option slot 1Usage	word
25	Option slot 2Usage	word
26	Meter type name	string(8)
278	Integer readings block occupies these registers, see below	word
279	Volts B-N	word
280	Volts C-N	word
281	Volts A-B	word
282	Volts B-C	word
283	Volts C-A	word
284	Amps A	word
285	Amps B	word
286	Amps C	word
289	VARs, 3-Ph total	smallint
290	VAs, 3-Ph total	word
291	Power factor, 3-Phtotal	smallint
294	Watts, phase B	smallint
295	Watts, phase C	smallint
296	VARs, phase A	smallint
297	VARs, phase B	smallint
298	VARs, phase C	smallint
299	VAs, phase A	word
300	VAs, phase B	word
303	Power Factor,Phase B	smallint
304	Power Factor,Phase C	smallint
999	Volts A-N	single
1001	Volts B-N	single
1003	Volts C-N	single
1005	Volts A-B	single
1007	Volts B-C	single
1009	Volts C-A	single
1011	Amps A	single
1013	Amps B	single
1015	Amps C	single
1017	Watts, 3-Ph total	single
1019	VARs, 3-Ph total	single
1021	VAs, 3-Ph total	single
1023	Power factor, 3-Phtotal	single
1025	Frequency	single
1027	Neutral current	single
1029	Watts, phase A	single
1031	Watts, phase B	single
1033	Watts, phase C	single

This is not the complete map: 50 of 150 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

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