--X33F-LB08-0PZ4-65e9d8f4 Content-Disposition: form-data; name=""; filename="COUNTIS-M34-MODBUS_COMMUNICATION-TABLE_2023-01_CMT_EN.html" Content-Type: application/octet-stream  MODBUS tables of Countis_M34
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Identification


Product
Dec start address Hex start address Type Size Lock level Locked fcts Unlocked fcts
64512 0xFC00 Info 4 NONE READ READ

Dec address Hex address Words count Description Unit Data type
64512 0xFC00 2 Serial Number - U32
64514 0xFC02 1 Product ID - U16_HEX
64515 0xFC03 1 Product software version - U16_HEX


Visualization


Measurement


Metrology 1
Dec start address Hex start address Type Size Lock level Locked fcts Unlocked fcts
0 0x0000 Info 72 NONE READ READ

Dec address Hex address Words count Description Unit Data type
0 0x0000 2 Simple voltage : V1 V F32
2 0x0002 2 Simple voltage : V2 V F32
4 0x0004 2 Simple voltage : V3 V F32
6 0x0006 2 Current : I1 A F32
8 0x0008 2 Current : I2 A F32
10 0x000A 2 Current : I3 A F32
12 0x000C 2 Active Power phase 1 +/- : P1 W F32
14 0x000E 2 Active Power phase 2 +/- : P2 W F32
16 0x0010 2 Active Power phase 3 +/- : P3 W F32
18 0x0012 2 Apparent Power phase 1 : S1 VA F32
20 0x0014 2 Apparent Power phase 2 : S2 VA F32
22 0x0016 2 Apparent Power phase 3 : S3 VA F32
24 0x0018 2 Reactive Power phase 1 +/- : Q1 var F32
26 0x001A 2 Reactive Power phase 2 +/- : Q2 var F32
28 0x001C 2 Reactive Power phase 3 +/- : Q3 var F32
30 0x001E 2 Power Factor phase 1 -: leading and + : lagging : PF1 - F32
32 0x0020 2 Power Factor phase 2 -: leading and + : lagging : PF2 - F32
34 0x0022 2 Power Factor phase 3 -: leading and + : lagging : PF3 - F32
36 0x0024 2 Phi current voltage: phiI1h1V1h1 ° F32
38 0x0026 2 Phi current voltage: phiI2h1V2h1 ° F32
40 0x0028 2 Phi current voltage: phiI3h1V3h1 ° F32
42 0x002A 2 System value V Sys : (V1 + V2 + V3 ) / 3 V F32
44 0x002C 2 Reserved - -
46 0x002E 2 System value I Sys : ( I1+I2+I3) / 3 A F32
48 0x0030 2 ∑ current : Isum A F32
50 0x0032 2 Reserved - -
52 0x0034 2 ∑ Active Power +/- : P W F32
54 0x0036 2 Reserved - -
56 0x0038 2 ∑ Apparent Power : S VA F32
58 0x003A 2 Reserved - -
60 0x003C 2 ∑ Reactive Power +/- : Q var F32
62 0x003E 2 ∑ Power Factor : -: leading et + : lagging : PF - F32
64 0x0040 2 Reserved - -
66 0x0042 2 Total system phase angle ° F32
68 0x0044 2 Reserved - -
70 0x0046 2 Frequency : F Hz F32

Metrology 2
Dec start address Hex start address Type Size Lock level Locked fcts Unlocked fcts
200 0x00C8 Info 10 NONE READ READ

Dec address Hex address Words count Description Unit Data type
200 0x00C8 2 Phase to Phase Voltage: U12 V F32
202 0x00CA 2 Phase to Phase Voltage: U23 V F32
204 0x00CC 2 Phase to Phase Voltage: U31 V F32
206 0x00CE 2 Average System value U Sys : (U12 + U23 + U31 ) / 3 V F32
208 0x00D0 2 Neutral Current : In A F32

Energies 1
Dec start address Hex start address Type Size Lock level Locked fcts Unlocked fcts
72 0x0048 Info 10 NONE READ READ

Dec address Hex address Words count Description Unit Data type
72 0x0048 2 Total Positive Active Energy (no resetable) : Ea+ kWh F32
74 0x004A 2 Total Negative Active Energy (no resetable) : Ea- kWh F32
76 0x004C 2 Total Positive Reactive Energy (no resetable) : Er + kvarh F32
78 0x004E 2 Total Negative Reactive Energy (no resetable) : Er - kvarh F32
80 0x0050 2 Total Apparent Energy (no resetable) : Eap kVAh F32

Energies 2
Dec start address Hex start address Type Size Lock level Locked fcts Unlocked fcts
342 0x0156 Info 40 NONE READ READ

Dec address Hex address Words count Description Unit Data type
342 0x0156 2 Total kWh (ea) kWh F32
344 0x0158 2 Total kvarh (er) kvarh F32
346 0x015A 2 Total Positive active Energy Line1 : Ea+ kWh F32
348 0x015C 2 Total Positive active Energy Line2 : Ea+ kWh F32
350 0x015E 2 Total Positive active Energy Line3 : Ea+ kWh F32
352 0x0160 2 Total Negative active Energy Line1 : Ea- kWh F32
354 0x0162 2 Total Negative active Energy Line2 : Ea- kWh F32
356 0x0164 2 Total Negative active Energy Line3 : Ea- kWh F32
358 0x0166 2 Total active Energy Line1 : Ea kWh F32
360 0x0168 2 Total active Energy Line2 : Ea kWh F32
362 0x016A 2 Total active Energy Line3 : Ea kWh F32
364 0x016C 2 Total Positive reactive Energy Line1 : Er+ kvarh F32
366 0x016E 2 Total Positive reactive Energy Line2 : Er+ kvarh F32
368 0x0170 2 Total Positive reactive Energy Line3 : Er+ kvarh F32
370 0x0172 2 Total Negative reactive Energy Line1 : Er- kvarh F32
372 0x0174 2 Total Negative reactive Energy Line2 : Er- kvarh F32
374 0x0176 2 Total Negative reactive Energy Line3 : Er- kvarh F32
376 0x0178 2 Total reactive Energy Line1 : Er- kvarh F32
378 0x017A 2 Total reactive Energy Line2 : Er- kvarh F32
380 0x017C 2 Total reactive Energy Line3 : Er- kvarh F32

Energies partial
Dec start address Hex start address Type Size Lock level Locked fcts Unlocked fcts
384 0x0180 Info 12 NONE READ READ

Dec address Hex address Words count Description Unit Data type
384 0x0180 2 Partial active Energy : Ea kWh F32
386 0x0182 2 Partial reactive Energy : Er kvarh F32
388 0x0184 2 Partial Positive active Energy : Ea+ kWh F32
390 0x0186 2 Partial Negative active Energy : Ea- kWh F32
392 0x0188 2 Partial Positive reactive Energy : Er+ kvarh F32
394 0x018A 2 Partial Negative reactive Energy : Er- kvarh F32

Power demand 1
Dec start address Hex start address Type Size Lock level Locked fcts Unlocked fcts
82 0x0052 Info 26 NONE READ READ

Dec address Hex address Words count Description Unit Data type
82 0x0052 2 Demand - F32
84 0x0054 2 Total system power demand W F32
86 0x0056 2 Maximum total system power demand VA F32
88 0x0058 12 Reserved - -
100 0x0064 2 Total system VA demand VA F32
102 0x0066 2 Maximum total system VA demand VA F32
104 0x0068 2 Neutral current demand A F32
106 0x006A 2 Maximum neutral current demand A F32

Power demand 2
Dec start address Hex start address Type Size Lock level Locked fcts Unlocked fcts
258 0x0102 Info 12 NONE READ READ

Dec address Hex address Words count Description Unit Data type
258 0x0102 2 Phase 1 current demand A F32
260 0x0104 2 Phase 2 current demand A F32
262 0x0106 2 Phase 3 current demand A F32
264 0x0108 2 Maximum phase 1 current demand A F32
266 0x010A 2 Maximum phase 2 current demand A F32
268 0x010C 2 Maximum phase 3 current demand A F32

Fundamental 1
Dec start address Hex start address Type Size Lock level Locked fcts Unlocked fcts
234 0x00EA Info 18 NONE READ READ

Dec address Hex address Words count Description Unit Data type
234 0x00EA 2 Ph-N Voltage total harmonic distortion : THD V1 % F32
236 0x00EC 2 Ph-N Voltage total harmonic distortion : THD V2 % F32
238 0x00EE 2 Ph-N Voltage total harmonic distortion : THD V3 % F32
240 0x00F0 2 Curent total harmonic distortion : THD I1 % F32
242 0x00F2 2 Curent total harmonic distortion : THD I2 % F32
244 0x00F4 2 Curent total harmonic distortion : THD I3 % F32
246 0x00F6 2 Reserved - -
248 0x00F8 2 Average System THD V % F32
250 0x00FA 2 Average System THD I % F32

Fundamental 2
Dec start address Hex start address Type Size Lock level Locked fcts Unlocked fcts
334 0x014E Info 8 NONE READ READ

Dec address Hex address Words count Description Unit Data type
334 0x014E 2 Ph-Ph Voltage total harmonic distortion : THD U12 % F32
336 0x0150 2 Ph-Ph Voltage total harmonic distortion : THD U23 % F32
338 0x0152 2 Ph-Ph Voltage total harmonic distortion : THD U31 % F32
340 0x0154 2 System THD U % F32



Settings


System


System Type
Dec start address Hex start address Type Size Lock level Locked fcts Unlocked fcts
10 0x000A Settings 2 USER READ READ | WRITE

Dec address Hex address Words count Description Unit Data type
10 0x000A 2 System Type
1 : 1P+N (2NBL)
2 : 3P (3BL)
3 : 3P+N (4NBL)		 - F32


Modbus slave


General slave connection
Dec start address Hex start address Type Size Lock level Locked fcts Unlocked fcts
20 0x0014 Settings 2 NONE READ READ | WRITE

Dec address Hex address Words count Description Unit Data type
20 0x0014 2 Slave Address - F32

Parity and stop bit
Dec start address Hex start address Type Size Lock level Locked fcts Unlocked fcts
18 0x0012 Settings 2 USER READ READ | WRITE | WRITE_MANY

Dec address Hex address Words count Description Unit Data type
18 0x0012 2 Parity and stop bit :
0 : One stop bit and no parity
1 : One stop bit and even parity
2 : One stop bit and odd parity
3 : Tw stop bits and no parity		 - F32

Baudrate
Dec start address Hex start address Type Size Lock level Locked fcts Unlocked fcts
28 0x001C Settings 2 USER READ READ | WRITE

Dec address Hex address Words count Description Unit Data type
28 0x001C 2 Baudrate :
0 : 2400 baud
1 : 4800 baud
2 : 9600 baud
3 : 19200 baud
4 : 38400 baud		 - F32


Pulse output


Pulse1 width
Dec start address Hex start address Type Size Lock level Locked fcts Unlocked fcts
12 0x000C Settings 2 USER READ READ | WRITE

Dec address Hex address Words count Description Unit Data type
12 0x000C 2 Pulse Width
60 : 60 ms
100 : 100 ms
200 : 200 ms		 - F32

Pulse1 weight
Dec start address Hex start address Type Size Lock level Locked fcts Unlocked fcts
22 0x0016 Settings 2 USER READ READ | WRITE

Dec address Hex address Words count Description Unit Data type
22 0x0016 2 Pulse 1 weight
0 : 0.0025 kWh(kVArh)/imp
1 : 0.01 kWh(kVArh)/imp
2 : 0.1 kWh(kVArh)/imp
3 : 1 kWh(kVArh)/imp
4 : 10 kWh(kVArh)/imp
5 : 100 kWh(kVArh)/imp		 - F32

Pulse1 Energy Type
Dec start address Hex start address Type Size Lock level Locked fcts Unlocked fcts
86 0x0056 Settings 2 USER READ READ | WRITE

Dec address Hex address Words count Description Unit Data type
86 0x0056 2 Pulse1 Energy Type
1 : Import active energy
2 : Total active energy
4 : Export active energy, default
5 : Import reactive energy
6 : Total reactive energy
8 : Export reactive energy		 - F32


Demand


Demand period
Dec start address Hex start address Type Size Lock level Locked fcts Unlocked fcts
2 0x0002 Settings 2 USER READ READ | WRITE

Dec address Hex address Words count Description Unit Data type
2 0x0002 2 Demand Period
5 : 5 min
8 : 8 min
10 : 10 min
15 : 15 min
20 : 20 min
30 : 30 min
60 : 60 min		 - F32



Commands


Reset


Reset maximum demand
Dec start address Hex start address Type Size Lock level Locked fcts Unlocked fcts
61456 0xF010 Commands 1 NONE WRITE WRITE

Dec address Hex address Words count Description Unit Data type
61456 0xF010 1 Reset Maximum Demand
0x0000 : Reset Max Demand
0x0003 : Reset the resettable Energy		 - U16_HEX


Password


Password Lock
Dec start address Hex start address Type Size Lock level Locked fcts Unlocked fcts
14 0x000E Commands 2 NONE NONE WRITE

Dec address Hex address Words count Description Unit Data type
14 0x000E 2 Password Lock
9999 : Lock		 - F32

Password
Dec start address Hex start address Type Size Lock level Locked fcts Unlocked fcts
24 0x0018 Commands 2 USER NONE WRITE

Dec address Hex address Words count Description Unit Data type
24 0x0018 2 Password - F32



Instructions


Modbus Protocol Overview



The format for each byte in RTU mode is:
Coding System: 8-bits per byte
Data Format:   4 bytes (2 registers) per parameter.
Floating-point format (as per IEEE 754)
Most significant register first
Error checking:  2 Bytes Cyclical Redundancy Check (CRC)
MODBUS frame:  1 start bit
8 data bits, least significant bit sent first
1 bit for even/odd parity (or no parity)
1 stop bit if parity is used; 1 or 2 bits if no parity



Data Coding



All data values in the COUNTIS M34 are transferred as 32 bits IEEE754 floating point numbers, (input and output).
All registers read requests and data write requests must specify an even number of registers.

The maximum number of registers that can be read in a single READ command is 80 (which means 40 values). Exceeding this limit will result in a MODBUS exception response.

Data transmission speed is selectable between 2400, 4800, 9600, 19200 and 38400 bauds.



Modbus protocol Input registers for electrical values data



Input registers must be used to read the values in the device (Modbus protocol function code 04).
The following table details the electrical values registers. Please note the addresses are according to JBUS protocol.
If your supervisor, BMS or software expects MODBUS addresses, add +1 to the JBUS register addresses

Any parameter with a cross (X) will return the value zero because it is not applicable for this particular wiring system / network type:
 4W : 4 wires (3P + N, 3 phases + neutral)
 3W : 3 wires (3P, 3 phases no neutral)
 2W : 2 wires (1P+N, single-phase with neutral)



Modbus Protocol Holding Registers for setup data



Holding registers are used to write and display the device configuration settings.
The holding register parameters may be read or changed with a write command using the Modbus Protocol.
Each parameter is held in two consecutive registers.
Modbus Protocol Function Code 03 is used to read these parameters and function code 16 have to be used for writing.
Write only one parameter per message.



Password



Some of the parameters described below are password protected and thus require the password to be entered at the Password register before they can be changed.
The default password is 0000.
When the password has been entered it will timeout in one minute unless the Password or Password Lock register is read to reset the timeout timer.
Once the required changes have been made to the protected parameters the password lock should be reapplied by
 a) Allowing the password to timeout, or
 b) Writing any value to the Password Lock register, or
 c) Power cycling the instrument.



Conventions



(1) Positive power factor value means inductive, negative value means capacitive.
(2) The total system power demand calculation is for both import – export power.
(3) Total kWh / kVarh equals to import + export energy.



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