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run_meters.py
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executable file
·199 lines (153 loc) · 4.41 KB
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#!/usr/bin/env python3
# -*- coding: utf-8 -*-
## [email protected] - DO WHAT THE FUCK YOU WANT TO PUBLIC LICENSE, etc.
import minimalmodbus
import serial
import time
import sys, os
if len(sys.argv) != 2:
print('Usage: {} interval[s]'.format(sys.argv[0]))
sys.exit(1)
interval = int(sys.argv[1])
def _get_instrument(modbus_id):
instrument = minimalmodbus.Instrument('/dev/ttyUSB0', modbus_id)
instrument.serial.baudrate= 76800
instrument.serial.bytesize = 8
instrument.serial.parity = serial.PARITY_NONE
instrument.serial.stopbits = 1
instrument.serial.timeout = .1 # seconds
return instrument
def PS_get_hardwareid(instrument):
return instrument.read_register(4200, 1)
def PS_read_measurment(instrument):
wanted_values = {
'V1': 4058,
'V2': 4059,
'V3': 4060,
'A1': 4055,
'A2': 4056,
'A3': 4057,
'P1': 4028,
'P2': 4029,
'P3': 4030,
'phi1': 4052,
'phi2': 4053,
'phi3': 4054,
'CI1': 10099,
'CI2': 10199,
'CI3': 10299,
}
multipliers = {
'phi1': lambda x: x*10,
'phi2': lambda x: x*10,
'phi3': lambda x: x*10,
'CI1': lambda x: x*10,
'CI2': lambda x: x*10,
'CI3': lambda x: x*10,
}
scalar_divider = {
'V': lambda scalar: .1 if scalar <=3 else 1,
'A': lambda scalar: .1 if scalar == 0 else .1 if scalar <= 3 else 1,
}
scalars = {
'V1': 'V',
'V2': 'V',
'V3': 'V',
'A1': 'A',
'A2': 'A',
'A3': 'A',
}
scalar_value = instrument.read_register(4601)
read_results = {}
for wanted_value in wanted_values:
addr = wanted_values[wanted_value]
reading = instrument.read_register(addr, 1)
if wanted_value in multipliers:
reading = multipliers[wanted_value](reading)
# if wanted_value in scalars:
# print('SCALAR VAL: {}, div: {}'.format(scalar_value, scalar_divider[scalars[wanted_value]](scalar_value)))
# print('READING: {} {}'.format(wanted_value, reading))
# reading = reading * scalar_divider[scalars[wanted_value]](scalar_value)
# print('RESULT: {}'.format(reading))
read_results[wanted_value] = reading
return read_results
def get_alive_power_scouts():
modbus_alives = []
print('Scanning power scouts…')
for mid in range(0xff+1):
i = _get_instrument(mid)
try:
hid = PS_get_hardwareid(i)
modbus_alives.append(mid)
print('PS on modbus {} is alive !'.format(mid))
except Exception:
pass
return modbus_alives
def print_header(results, f):
sorted_labels = []
for label in sorted(results):
sorted_labels.append(label)
csv_result = ','.join(sorted_labels)
print(csv_result)
f.write(csv_result)
f.write('\n')
def save_results(results, f):
sorted_labels = []
for label in sorted(results):
sorted_labels.append(label)
csv_results = []
for label in sorted_labels:
csv_results.append(results[label])
str_csv_results = [str(a) for a in csv_results]
str_csv_results.append(time.strftime("%Y/%m/%d %H:%M:%S"))
str_csv_results.append(time.strftime("%s")) #timestamp
csv_result = ','.join(str_csv_results)
print(csv_result)
f.write(csv_result)
f.write('\n')
def display_results(results):
def _display_units():
print('|id | |V1 |A1 |P1 |φ1 | |V2 |A2 |P2 |φ2 | |V3 |A3 |P3 |φ3 | | |CT1|CT2|CT3|')
def _display_separator():
print('|---| |---|----|----|---| |---|----|----|---| |---|----|----|---| | |---|---|---|')
os.system('clear')
_display_separator()
_display_units()
_display_separator()
_display_separator()
for ps in results.keys():
r = results[ps]
print('|{:3d}| ' \
'|{:3.3}|{:4.4}|{:4.4}|{:3.3}| ' \
'|{:3.3}|{:4.4}|{:4.4}|{:3.3}| ' \
'|{:3.3}|{:4.4}|{:4.4}|{:3.3}| | '
'|{:3.3}|{:3.3}|{:3.3}|'.format(ps, \
str(r['V1']), str(r['A1']), str(r['P1']), str(r['phi1']), \
str(r['V2']), str(r['A2']), str(r['P2']), str(r['phi2']), \
str(r['V3']), str(r['A3']), str(r['P3']), str(r['phi3']), \
str(r['CI1']), str(r['CI2']), str(r['CI3']), \
))
_display_separator()
modbus_alive = get_alive_power_scouts()
ps_files = {}
for ps in modbus_alive:
ps_files[ps] = open('LOGS/PS_log_{}.csv'.format(ps), 'a')
ps_instruments = {}
for ps in modbus_alive:
ps_instruments[ps] = _get_instrument(ps)
#Write labels
for ps in ps_instruments:
results = PS_read_measurment(ps_instruments[ps])
print_header(results, ps_files[ps])
while True:
results = {}
try:
for ps in ps_instruments:
ps_results = PS_read_measurment(ps_instruments[ps])
save_results(results, ps_files[ps])
results[ps] = ps_results
except:
pass
display_results(results)
time.sleep(interval)
# vim: set ts=4 sw=4 noet: