hat schon jemand probiert Modbus TCP als Slave Smartmeter einzubinden?
Damit könnte man im Solarweb auch den Verbrauch der Waschmaschine, Ladestation und anderen Dingen die man im ioBroker hat visualisieren.
Die dafür nötigen Modbus Adressen sind ja bekannt.
Gen24 to Fronuis Smart Meter Registers
Polled at startup, haven't reversed those yet
0, [2336,0] AC Voltage mean?
11, [731]
770, [1,3)
20480, [50, 51, 48, 50, 53, 54, 87, 31973, 1450] S/N?
20496, [2022]
4098, [0]
4355, [1]
4356, [1,0]
Polled constantly:
Read holding register for device ID 1 , Start address = 258 Quantity = 16
Read holding register for device ID 1 , Start address = 286 Quantity = 42
The values are encoded as 32-bit integers, with an odd coding of negative values (see python code below)
258 - 2340 234.0 AC Voltage Mean?
259 - 0
260 - 4053 405.3 AC Voltage Mean?
261 - 0
262 - 47739 -1780.6W - Power total
263 - 65535
264 - 17799 1779.9 VA - Apparent Power total
265 - 0
266 - 254 -2.54 VA - Reactive Power total
267 - 0
268 - 1000 Power factor
269 - 0
270 - 0
271 - 0
272 - 499 49.9 Hz - Frequency
273 - 0
286 - 4053 405.3 V - AC Voltage P1
287 - 0
288 - 2343 234.3 - AC Voltage L1
289 - 0
290 - 63001 -2.534A - AC Current L1
291 - 65535
292 - 59598 -593.7W - Power L1
293 - 65535
294 - 5938 593.3 - Apparent Power L1
295 - 0
296 - 22 2.2 VA - Reactive Power L1
297 - 0
298 - 1000 Power factor
299 - 0
300 - 4027 402.7 - AC Voltage P2
301 - 0
302 - 2338 233.8 - AC Voltage L2
303 - 0
304 - 62991 -2.544A - AC Current L2
305 - 65535
306 - 59589 -594.6W - Power L2
307 - 65535
308 - 5948 594.8 - Apparent Power L2
309 - 0
310 - 109 10.9 VA - Reactive Power L2
311 - 0
312 - 1000 Power factor = 1 (64537 = 0.999)
313 - 0
314 - 4072 407.2 - AC Voltage P3
315 - 0
316 - 2336 233.6 - AC Voltage L3
317 - 0
318 - 63005 -2.530A - AC Current L3 (65535-63005 mA)
319 - 65535
320 - 59626 -590.9W - Power L3 ( (65535-59626)/10 )
321 - 65535
322 - 5911 591.1 - Apparent Power L3
323 - 0
324 - 122 12.2 VA - Reactive Power L3
325 - 0
326 - 1000 Power factor
327 - 0
Polled every 10 seconds:
2023-03-20 17:19:30.073269 Read holding register for device ID 1 , Start address = 1024 Quantity = 16```
Values below were confirmed by looking at the actual meter display
1024 - 2005 Energy consumed (2005.163 kWh)
1025 - 0
1026 - 163
1027 - 0
1028 - 43 Energy reactive consumed (43.801 kVArh)
1029 - 0
1030 - 801
1031 - 0
1032 - 1722 Energy produced (1722.232 kWh)
1033 - 0
1034 - 232
1035 - 0
1036 - 8 Energy reactive produced (8.203 kVArh)
1037 - 0
1038 - 203
1039 - 0
Python to code/decode values
Two consecutive 16-bit registers are used. If MSB in r2 is 1, then it's a negative number.
def get_value_from_32bits(r1,r2):
v = r1 + (r2 & 32767) * 65536
if r2 > 32768:
v = - ((65535 - r1) + (65535 - r2) * 65536)
print("v:",v)
return v
def get_32bits_from_value(value):
if value > 0:
r1 = value & 65535
r2 = value >> 16
if value < 0:
value = - value
r1 = 65535 - (value & 65535)
r2 = 65535 - (value >> 16)
print("v,r1,r2:",value,r1,r2)
print("")
return [r1,r2]
v = get_value_from_32bits(64657,1) # 130193
new_regs = get_32bits_from_value(v // 1)
v = get_value_from_32bits(17799,0) # 17799
new_regs = get_32bits_from_value(v // 1)
v = get_value_from_32bits(47739,65535) # -17796
new_regs = get_32bits_from_value(v // 1)
v = get_value_from_32bits(31071,65534) # -100000
new_regs = get_32bits_from_value(-100000 // 1)
