Показать страницуИстория страницыСсылки сюдаНаверх Эта страница только для чтения. Вы можете посмотреть её исходный текст, но не можете его изменить. Сообщите администратору, если считаете, что это неправильно. ====== Hiking DDS238-1 ZN ====== [[https://ab-log.ru/smart-house/ethernet/megad-rs485|MegaD-2561 в качестве шлюза RS-485/Modbus RTU - Ethernet]] - подключение к счетчику через контроллер MegaD. Для подключения к счетчику через [[megad:hw:servers:rpi4-rtc-poe:start|RPi4]] используем утилиту [[megad:hw:servers:rpi4-rtc-poe:rs485|modbus-client]]. Порт подключения для RPi4 - '/dev/ttyAMA1' https://aliexpress.ru/item/32813249295.html PINS: 9 - A, 10 - B ===== Смена адреса счетчика ===== Читаем регистр 0х15: <sxh> # modbus_client --debug -mrtu -pnone -s1 /dev/ttyAMA1 -a1 -t0x03 -r0x15 Opening /dev/ttyRS485-1 at 9600 bauds (N, 8, 1) [01][03][00][15][00][01][95][CE] Waiting for a confirmation… <01><03><02><01><01><78><14> SUCCESS: read 1 of elements: Data: 0x0101 </sxh> Теперь в этот регистр записываем значение 0х0201: <sxh> # modbus_client --debug -mrtu -pnone -s1 /dev/ttyAMA1 -a1 -t0x10 -r0x15 0x0201 Data to write: 0x0201 Opening /dev/ttyRS485-1 at 9600 bauds (N, 8, 1) [01][10][00][15][00][01][02][02][01][64][35] Waiting for a confirmation… <01><10><00><15><00><01><10><0D> SUCCESS: written 1 elements! </sxh> После чего проверяем правильность записи уже по адресу -а2: <sxh> # modbus_client --debug -mrtu -pnone -s1 /dev/ttyAMA1 -a2 -t0x03 -r0x15 Opening /dev/ttyRS485-1 at 9600 bauds (N, 8, 1) [02][03][00][15][00][01][95][FD] Waiting for a confirmation… <02><03><02><02><01><3C> SUCCESS: read 1 of elements: Data: 0x0201 </sxh> Отлично, прибору присвоен Modbus RTU ID=002 ===== Список регистров счетчика ===== Данные регистры одинаковы для моделей: DDS238-4 W; DDS238 4 ZN/S; DDS238 2 ZN/S; DDS238 1 ZN ([[https://gist.github.com/alphp/95e1efe916c0dd6df7156f43dd521d53|Источник]]) ==== Modbus holding registers: ==== ^ Register(s) ^ Meaning ^ Scale Unit ^ Data format ^ R/W ^ | 0000h-0001h | total energy | 1/100 kWh | unsigned dword | R¹ | | 0002h-0003h | reserved | | unsigned dword| | | 0004h-0005h | reserved | | unsigned dword| | | 0006h-0007h | reserved | | unsigned dword| | | 0008h-0009h | export energy | 1/100 kWh | unsigned dword | R¹| | 000Ah-000Bh | import energy | 1/100 kWh | unsigned dword | R¹| | 000Ch | voltage | 1/10 V | unsigned word | R| | 000Dh | current | 1/100 A | unsigned word | R| | 000Eh | active power | 1 W | signed word | R| | 000Fh | reactive power | 1 VAr | unsigned word | R| | 0010h | power factor | 1/1000 | unsigned word | R| | 0011h | frequency | 1/100 Hz | unsigned word | R| | 0012h | reserved | unsigned word | | | 0013h | reserved | unsigned word | | | 0014h | reserved | unsigned word | | | 0015h:high | station address | 1-247 | unsigned char | R/W| | 0015h:low | baud rate 1-4² | unsigned char | R/W| | 001Ah | relay³ | unsigned word | R/W| === Notes: === 1) Total, export and import energy counters can erased writing 0 in total energy registers. 2) Value mapping, default 1. ^ Value ^ Baud rate ^ | 1 | 9600 Bd | | 2 | 4800 Bd | | 3 | 2400 Bd | | 4 | 1200 Bd | 3) In DDS238-2 ZN/SR model the relay can be switched by 0x001A register. ^ Value ^ Relay ^ | 0 | Off | | 1 | On | === Data formats === ^ Data format ^ Length ^ Byte order ^ | char | 8 bits | | | word | 16 bits | Big endian | | dword | 32 bits | Big endian | ==== Writing registers ==== The meter does not understand the 'write sigle register' function code (06h), only the 'write multiple registers' function code (10h). ===== OpenHAB examples ===== https://community.openhab.org/t/dds238-2-energy-meter-with-modbus-interface/81463 .things <sxh> Bridge modbus:serial:usbstick10 [port="/dev/ttyUSB0", id=10, baud=9600, stopBits="1.0", parity="none", dataBits=8, encoding="rtu"] { Bridge poller zone10 [ start=0, length=43, refresh=5000, type="holding" ] { Thing data reg00 [ readStart="0", readValueType="uint16" ] Thing data reg01 [ readStart="1", readValueType="uint16", readTransform="JS(divide100.js)" ] Thing data reg11 [ readStart="11", readValueType="uint16", readTransform="JS(divide100.js)"] Thing data reg12 [ readStart="12", readValueType="uint16", readTransform="JS(divide10.js)" ] Thing data reg13 [ readStart="13", readValueType="uint16", readTransform="JS(divide100.js)" ] Thing data reg14 [ readStart="14", readValueType="uint16", readTransform="JS(divide1000.js)"] Thing data reg15 [ readStart="15", readValueType="uint16", readTransform="JS(divide1000.js)" ] Thing data reg16 [ readStart="16", readValueType="uint16", readTransform="JS(divide1000.js)" ] Thing data reg17 [ readStart="17", readValueType="uint16", readTransform="JS(divide100.js)" ] Thing data reg21H [ readStart="21.1", readValueType="uint8" ] Thing data reg21L [ readStart="21.0", readValueType="uint8" ] } } </sxh> .items <sxh> umber z10Reg99 "Total Energy [%.2f kWh]" <energy> (gPers_Change_Hour, gReg99) Number z10Reg00 "Total Energy High" <energy> (gz10) { channel="modbus:data:usbstick10:zone01:reg00:number" } Number z10Reg01 "Total Energy Low" <energy> (gz10) { channel="modbus:data:usbstick10:zone01:reg01:number" } Number z10Reg12 "Voltage [%.1f V]" <energy> (gPers_Change) { channel="modbus:data:usbstick10:zone10:reg12:number" } Number z10Reg13 "Current [%.2f A]" <energy> (gPers_Change) { channel="modbus:data:usbstick10:zone10:reg13:number" } Number z10Reg14 "Active Power [%.3f kW]" <energy> (gPers_Change) { channel="modbus:data:usbstick10:zone10:reg14:number" } Number z10Reg15 "Reactive Power [%.3f kVar]" <energy> (gPers_Change) { channel="modbus:data:usbstick10:zone10:reg15:number" } Number z10Reg16 "PowerFactor [%.3f]" <energy> (gPers_Change) { channel="modbus:data:usbstick10:zone10:reg16:number" } Number z10Reg17 "Frequency [%.2f Hz]" <energy> (gPers_Change) { channel="modbus:data:usbstick10:zone10:reg17:number" } Number z10Reg21H "ModBus Id [%d]" <energy> { channel="modbus:data:usbstick10:zone10:reg21H:number" } Number z10Reg21L "Baudrate [MAP(modbusbaud.map):%s]" <energy> { channel="modbus:data:usbstick10:zone10:reg21L:number" } Number z10HourCounter "Last Hour [%.2f kWh]" <energy> (gPers_Change_Hour) Number z10DayCounter "Last Day [%.2f kWh]" <energy> (gPers_Change_Day) Number z10WeekCounter "Last Week [%.2f kWh]" <energy> (gPers_Change_Week) Number z10MonthCounter "Last Month [%.2f kWh]" <energy> (gPers_Change_Month) </sxh> hw/dds238.txt Последнее изменение: 2023/04/18 18:37 — lazygatto