!ls /dev/ttyUSB*
/dev/ttyUSB0 /dev/ttyUSB1
%load_ext autoreload
%autoreload 2
import sys, re
# https://github.com/fzinfz/meter-dlt645
sys.path.append("/data/powermeter_dlt645/meter-dlt645")
from test_dlt645 import *
import test_dlt645
# https://github.com/fzinfz/flask-DLT645
sys.path.append("/data/flask-DLT645/lib")
from read import *
from write import *
chn=dlt645.Channel(port_id = '/dev/ttyUSB1', tmo_cnt = 10, wait_for_read = 0.5)
chn.open()
True
read_meter_address(chn, verbose=1)
addr = chn.rx_addr
print(addr)
--- Read meter address with broadcase mode --- tx_frame : fe fe 68 aa aa aa aa aa aa 68 13 00 df 16 tx_addr : aa aa aa aa aa aa tx_ctrl : 13 tx_payload : wait... rx_frame : 68 69 85 31 28 01 01 68 93 06 9c b8 64 5b 34 34 2d 16 rx_addr : 01 01 28 31 85 69 rx_ctrl : 93 rx_payload : 69 85 31 28 01 01 Meter address: 010128318569 [1, 1, 40, 49, 133, 105]
# algorithm for converting back to human readable
''.join([ '{0:0>2x}'.format(s) for s in addr ])
'010128318569'
addr = [ int(s,16) for s in re.findall('..', '001522454104') ]
restart kernel if data incorrect
m = Meter(chn, addr, level=4, verbose=0)
m.read_meter()
{'内部电池电压': (3.69, 'V'),
'电能-组合有功总-上结算日': (0.0, 'kWh'),
'A相电压': (227.9, 'V'),
'A相电流': (0.357, 'A'),
'功率-一分钟有功总平均': ('48.00', 'W'),
'功率因数-总': (0.575, ''),
'功率-瞬时总有功': ('46.80', 'W'),
'电能-组合有功总-当前': (0.52, 'kWh'),
'功率-A相': ('81.36', 'W'),
'电能:本周期': ('0.52', 'kWh'),
'日期时间': ('20201129 20:43:33', '')}
m = Meter(chn, addr, level=1, verbose=1)
m.read_meter()
tx_frame : fe fe 68 69 85 31 28 01 01 68 11 04 33 33 33 33 fa 16 tx_addr : 01 01 28 31 85 69 tx_ctrl : 11 tx_payload : 00 00 00 00 wait... rx_frame : 68 69 85 31 28 01 01 68 91 08 33 33 33 33 85 33 33 33 9c 16 rx_addr : 01 01 28 31 85 69 rx_ctrl : 91 rx_payload : 00 00 00 00 52 00 00 00
{'电能-组合有功总-当前': (0.52, 'kWh')}
passwd
[4, 0, 0, 0]
# re-run if IndexError
verbose=0
read_last_outage_timestamp(chn, addr, 1, verbose)
for m in range(0,2):
for n in [0,2,4]:
read_energy(chn, addr, m, n, verbose)
--- Read last outage timestamp of N = 1 --- Last outage timestamp: 20-11-28 00:27:31 ----> 20-11-28 00:50:26 --- Read energy (Current Month) --- Total: 0.52 kWh --- Read energy (Current Month) --- Peak: 0.35 kWh --- Read energy (Current Month) --- Trough: 0.17 kWh --- Read energy (Last 1 Month) --- Total: 0.00 kWh --- Read energy (Last 1 Month) --- Peak: 0.00 kWh --- Read energy (Last 1 Month) --- Trough: 0.00 kWh
https://github.com/glx-technologies/meter-dlt645
运行前开前挡板按编程键
rx_ctrl :
94 => success
d4 => fail
91 => read success
!date
2020年 11月 01日 星期日 12:37:15 CST
change_date(chn, addr)
201129 [32, 17, 41] tx_frame : fe fe 68 04 41 45 22 15 00 68 14 10 34 34 33 37 37 33 33 33 33 33 33 33 33 5c 44 53 49 16 tx_addr : 00 15 22 45 41 04 tx_ctrl : 14 tx_payload : 01 01 00 04 04 00 00 00 00 00 00 00 00 29 11 20 wait... rx_frame : 68 04 41 45 22 15 00 68 91 08 34 37 33 33 7b 34 33 33 10 16 rx_addr : 00 15 22 45 41 04 rx_ctrl : 91 rx_payload : 01 04 00 00 48 01 00 00
passwd
[4, 17, 17, 17]
change_time(chn, addr)
193241 [25, 50, 65] tx_frame : fe fe 68 69 85 31 28 01 01 68 14 0f 35 34 33 37 37 33 33 33 33 33 33 33 74 65 4c d0 16 tx_addr : 01 01 28 31 85 69 tx_ctrl : 14 tx_payload : 02 01 00 04 04 00 00 00 00 00 00 00 41 32 19 wait... rx_frame : 68 69 85 31 28 01 01 68 d4 01 37 25 16 rx_addr : 01 01 28 31 85 69 rx_ctrl : d4 rx_payload : 04
chn.close()