iec1107: iec1107.py annotate

annotate iec1107.py @ 12:b4de1b6f8f78

Add note about nice looking circuit.

author	Daniel O'Connor <darius@dons.net.au>
date	Mon, 25 Nov 2013 23:43:33 +1030
parents	c1892bd1460a
children	156313694bbb

rev	line source
0 fd8520d969c4 Initial commit, only readmeter function works Daniel O'Connor <darius@dons.net.au> parents: diff changeset	1 #!/usr/bin/env python
4 10a16898903d Add license. Daniel O'Connor <darius@dons.net.au> parents: 3 diff changeset	2 #
10a16898903d Add license. Daniel O'Connor <darius@dons.net.au> parents: 3 diff changeset	3 # Copyright (c) 2013
10a16898903d Add license. Daniel O'Connor <darius@dons.net.au> parents: 3 diff changeset	4 # Daniel O'Connor <darius@dons.net.au>. All rights reserved.
10a16898903d Add license. Daniel O'Connor <darius@dons.net.au> parents: 3 diff changeset	5 #
10a16898903d Add license. Daniel O'Connor <darius@dons.net.au> parents: 3 diff changeset	6 # Redistribution and use in source and binary forms, with or without
10a16898903d Add license. Daniel O'Connor <darius@dons.net.au> parents: 3 diff changeset	7 # modification, are permitted provided that the following conditions
10a16898903d Add license. Daniel O'Connor <darius@dons.net.au> parents: 3 diff changeset	8 # are met:
10a16898903d Add license. Daniel O'Connor <darius@dons.net.au> parents: 3 diff changeset	9 # 1. Redistributions of source code must retain the above copyright
10a16898903d Add license. Daniel O'Connor <darius@dons.net.au> parents: 3 diff changeset	10 # notice, this list of conditions and the following disclaimer.
10a16898903d Add license. Daniel O'Connor <darius@dons.net.au> parents: 3 diff changeset	11 # 2. Redistributions in binary form must reproduce the above copyright
10a16898903d Add license. Daniel O'Connor <darius@dons.net.au> parents: 3 diff changeset	12 # notice, this list of conditions and the following disclaimer in the
10a16898903d Add license. Daniel O'Connor <darius@dons.net.au> parents: 3 diff changeset	13 # documentation and/or other materials provided with the distribution.
0 fd8520d969c4 Initial commit, only readmeter function works Daniel O'Connor <darius@dons.net.au> parents: diff changeset	14 #
4 10a16898903d Add license. Daniel O'Connor <darius@dons.net.au> parents: 3 diff changeset	15 # THIS SOFTWARE IS PROVIDED BY AUTHOR AND CONTRIBUTORS ``AS IS'' AND
10a16898903d Add license. Daniel O'Connor <darius@dons.net.au> parents: 3 diff changeset	16 # ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
10a16898903d Add license. Daniel O'Connor <darius@dons.net.au> parents: 3 diff changeset	17 # IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
10a16898903d Add license. Daniel O'Connor <darius@dons.net.au> parents: 3 diff changeset	18 # ARE DISCLAIMED. IN NO EVENT SHALL AUTHOR OR CONTRIBUTORS BE LIABLE
10a16898903d Add license. Daniel O'Connor <darius@dons.net.au> parents: 3 diff changeset	19 # FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
10a16898903d Add license. Daniel O'Connor <darius@dons.net.au> parents: 3 diff changeset	20 # DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
10a16898903d Add license. Daniel O'Connor <darius@dons.net.au> parents: 3 diff changeset	21 # OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
10a16898903d Add license. Daniel O'Connor <darius@dons.net.au> parents: 3 diff changeset	22 # HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
10a16898903d Add license. Daniel O'Connor <darius@dons.net.au> parents: 3 diff changeset	23 # LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
10a16898903d Add license. Daniel O'Connor <darius@dons.net.au> parents: 3 diff changeset	24 # OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
10a16898903d Add license. Daniel O'Connor <darius@dons.net.au> parents: 3 diff changeset	25 # SUCH DAMAGE.
10a16898903d Add license. Daniel O'Connor <darius@dons.net.au> parents: 3 diff changeset	26 #
10a16898903d Add license. Daniel O'Connor <darius@dons.net.au> parents: 3 diff changeset	27 # Most of this is derived from the extremely helpful post at
0 fd8520d969c4 Initial commit, only readmeter function works Daniel O'Connor <darius@dons.net.au> parents: diff changeset	28 # http://www.domoticaforum.eu/viewtopic.php?f=71&t=7489
fd8520d969c4 Initial commit, only readmeter function works Daniel O'Connor <darius@dons.net.au> parents: diff changeset	29 #
fd8520d969c4 Initial commit, only readmeter function works Daniel O'Connor <darius@dons.net.au> parents: diff changeset	30
3 535076e31660 Parse the result. Daniel O'Connor <darius@dons.net.au> parents: 2 diff changeset	31 import datetime
0 fd8520d969c4 Initial commit, only readmeter function works Daniel O'Connor <darius@dons.net.au> parents: diff changeset	32 import exceptions
8 08b192a6e189 Add RRD output mode. Daniel O'Connor <darius@dons.net.au> parents: 5 diff changeset	33 import optparse
3 535076e31660 Parse the result. Daniel O'Connor <darius@dons.net.au> parents: 2 diff changeset	34 import re
0 fd8520d969c4 Initial commit, only readmeter function works Daniel O'Connor <darius@dons.net.au> parents: diff changeset	35 import serial
fd8520d969c4 Initial commit, only readmeter function works Daniel O'Connor <darius@dons.net.au> parents: diff changeset	36 import sys
fd8520d969c4 Initial commit, only readmeter function works Daniel O'Connor <darius@dons.net.au> parents: diff changeset	37 import time
fd8520d969c4 Initial commit, only readmeter function works Daniel O'Connor <darius@dons.net.au> parents: diff changeset	38
fd8520d969c4 Initial commit, only readmeter function works Daniel O'Connor <darius@dons.net.au> parents: diff changeset	39 baudtable = {'0' : 300, '1' : 600, '2' : 1200, '3' : 2400, '4' : 4800, '5' : 9600, '6' : 19200}
3 535076e31660 Parse the result. Daniel O'Connor <darius@dons.net.au> parents: 2 diff changeset	40 parsere = re.compile('([0-9A-Z](\.[0-9A-Z]){1,})\((.*)\)')
0 fd8520d969c4 Initial commit, only readmeter function works Daniel O'Connor <darius@dons.net.au> parents: diff changeset	41
fd8520d969c4 Initial commit, only readmeter function works Daniel O'Connor <darius@dons.net.au> parents: diff changeset	42 class Error(exceptions.BaseException):
fd8520d969c4 Initial commit, only readmeter function works Daniel O'Connor <darius@dons.net.au> parents: diff changeset	43 pass
fd8520d969c4 Initial commit, only readmeter function works Daniel O'Connor <darius@dons.net.au> parents: diff changeset	44
1 99f25c8ab92f Make class version actually work, remove procedure. Daniel O'Connor <darius@dons.net.au> parents: 0 diff changeset	45 class IEC1107Reading(object):
99f25c8ab92f Make class version actually work, remove procedure. Daniel O'Connor <darius@dons.net.au> parents: 0 diff changeset	46 def __init__(self, port, force300bps = True):
0 fd8520d969c4 Initial commit, only readmeter function works Daniel O'Connor <darius@dons.net.au> parents: diff changeset	47 # Open port
1 99f25c8ab92f Make class version actually work, remove procedure. Daniel O'Connor <darius@dons.net.au> parents: 0 diff changeset	48 s = serial.Serial(port, baudrate = 300, bytesize = 7, parity = 'E', stopbits = 1)
99f25c8ab92f Make class version actually work, remove procedure. Daniel O'Connor <darius@dons.net.au> parents: 0 diff changeset	49 s.timeout = 2.5
0 fd8520d969c4 Initial commit, only readmeter function works Daniel O'Connor <darius@dons.net.au> parents: diff changeset	50
fd8520d969c4 Initial commit, only readmeter function works Daniel O'Connor <darius@dons.net.au> parents: diff changeset	51 # Send ident message
1 99f25c8ab92f Make class version actually work, remove procedure. Daniel O'Connor <darius@dons.net.au> parents: 0 diff changeset	52 s.write('/?!\r\n')
99f25c8ab92f Make class version actually work, remove procedure. Daniel O'Connor <darius@dons.net.au> parents: 0 diff changeset	53 rtn = s.readline()
99f25c8ab92f Make class version actually work, remove procedure. Daniel O'Connor <darius@dons.net.au> parents: 0 diff changeset	54 if len(rtn) == 0:
99f25c8ab92f Make class version actually work, remove procedure. Daniel O'Connor <darius@dons.net.au> parents: 0 diff changeset	55 raise Error('No reply to probe')
0 fd8520d969c4 Initial commit, only readmeter function works Daniel O'Connor <darius@dons.net.au> parents: diff changeset	56 if len(rtn) < 6 or rtn[0] != '/' or rtn[-1] != '\n' or rtn[-2] != '\r':
fd8520d969c4 Initial commit, only readmeter function works Daniel O'Connor <darius@dons.net.au> parents: diff changeset	57 raise Error('Invalid line "%s"' % (rtn))
1 99f25c8ab92f Make class version actually work, remove procedure. Daniel O'Connor <darius@dons.net.au> parents: 0 diff changeset	58
0 fd8520d969c4 Initial commit, only readmeter function works Daniel O'Connor <darius@dons.net.au> parents: diff changeset	59 rtn = rtn.strip()
fd8520d969c4 Initial commit, only readmeter function works Daniel O'Connor <darius@dons.net.au> parents: diff changeset	60 self.mfg = rtn[1:4]
fd8520d969c4 Initial commit, only readmeter function works Daniel O'Connor <darius@dons.net.au> parents: diff changeset	61
fd8520d969c4 Initial commit, only readmeter function works Daniel O'Connor <darius@dons.net.au> parents: diff changeset	62 if self.mfg[2].isupper():
fd8520d969c4 Initial commit, only readmeter function works Daniel O'Connor <darius@dons.net.au> parents: diff changeset	63 self.restime = 0.2
fd8520d969c4 Initial commit, only readmeter function works Daniel O'Connor <darius@dons.net.au> parents: diff changeset	64 else:
fd8520d969c4 Initial commit, only readmeter function works Daniel O'Connor <darius@dons.net.au> parents: diff changeset	65 self.restime = 0.02
fd8520d969c4 Initial commit, only readmeter function works Daniel O'Connor <darius@dons.net.au> parents: diff changeset	66
1 99f25c8ab92f Make class version actually work, remove procedure. Daniel O'Connor <darius@dons.net.au> parents: 0 diff changeset	67 if force300bps:
99f25c8ab92f Make class version actually work, remove procedure. Daniel O'Connor <darius@dons.net.au> parents: 0 diff changeset	68 self.baudid = '0'
99f25c8ab92f Make class version actually work, remove procedure. Daniel O'Connor <darius@dons.net.au> parents: 0 diff changeset	69 else:
99f25c8ab92f Make class version actually work, remove procedure. Daniel O'Connor <darius@dons.net.au> parents: 0 diff changeset	70 self.baudid = rtn[4]
0 fd8520d969c4 Initial commit, only readmeter function works Daniel O'Connor <darius@dons.net.au> parents: diff changeset	71 if self.baudid not in baudtable:
fd8520d969c4 Initial commit, only readmeter function works Daniel O'Connor <darius@dons.net.au> parents: diff changeset	72 raise Error('Invalid baud rate %c from "%s"' % (selfbaudid, rtn))
fd8520d969c4 Initial commit, only readmeter function works Daniel O'Connor <darius@dons.net.au> parents: diff changeset	73 else:
fd8520d969c4 Initial commit, only readmeter function works Daniel O'Connor <darius@dons.net.au> parents: diff changeset	74 self.baud = baudtable[self.baudid]
fd8520d969c4 Initial commit, only readmeter function works Daniel O'Connor <darius@dons.net.au> parents: diff changeset	75
fd8520d969c4 Initial commit, only readmeter function works Daniel O'Connor <darius@dons.net.au> parents: diff changeset	76 if rtn[5] == '/':
fd8520d969c4 Initial commit, only readmeter function works Daniel O'Connor <darius@dons.net.au> parents: diff changeset	77 self.mode = rtn[6]
fd8520d969c4 Initial commit, only readmeter function works Daniel O'Connor <darius@dons.net.au> parents: diff changeset	78 self.mfg = rtn[7:]
fd8520d969c4 Initial commit, only readmeter function works Daniel O'Connor <darius@dons.net.au> parents: diff changeset	79 else:
fd8520d969c4 Initial commit, only readmeter function works Daniel O'Connor <darius@dons.net.au> parents: diff changeset	80 self.mode = None
fd8520d969c4 Initial commit, only readmeter function works Daniel O'Connor <darius@dons.net.au> parents: diff changeset	81 self.mfg = rtn[5:]
fd8520d969c4 Initial commit, only readmeter function works Daniel O'Connor <darius@dons.net.au> parents: diff changeset	82
fd8520d969c4 Initial commit, only readmeter function works Daniel O'Connor <darius@dons.net.au> parents: diff changeset	83 # Send ACK/option message
fd8520d969c4 Initial commit, only readmeter function works Daniel O'Connor <darius@dons.net.au> parents: diff changeset	84 # Byte Meaning
fd8520d969c4 Initial commit, only readmeter function works Daniel O'Connor <darius@dons.net.au> parents: diff changeset	85 # 0 ACK (0x06)
fd8520d969c4 Initial commit, only readmeter function works Daniel O'Connor <darius@dons.net.au> parents: diff changeset	86 # 1 Protocol character ('0' = normal, '1' = secondary, '2' = HDLC protocol)
fd8520d969c4 Initial commit, only readmeter function works Daniel O'Connor <darius@dons.net.au> parents: diff changeset	87 # 2 Baud rate ID ('0', '1', etc)
fd8520d969c4 Initial commit, only readmeter function works Daniel O'Connor <darius@dons.net.au> parents: diff changeset	88 # 3 Mode control('0' = read data, '1' = device prog)
1 99f25c8ab92f Make class version actually work, remove procedure. Daniel O'Connor <darius@dons.net.au> parents: 0 diff changeset	89 s.write('\x060%c0\r\n' % (self.baudid))
0 fd8520d969c4 Initial commit, only readmeter function works Daniel O'Connor <darius@dons.net.au> parents: diff changeset	90
fd8520d969c4 Initial commit, only readmeter function works Daniel O'Connor <darius@dons.net.au> parents: diff changeset	91 time.sleep(self.restime)
1 99f25c8ab92f Make class version actually work, remove procedure. Daniel O'Connor <darius@dons.net.au> parents: 0 diff changeset	92 s.setBaudrate(self.baud)
99f25c8ab92f Make class version actually work, remove procedure. Daniel O'Connor <darius@dons.net.au> parents: 0 diff changeset	93
99f25c8ab92f Make class version actually work, remove procedure. Daniel O'Connor <darius@dons.net.au> parents: 0 diff changeset	94 lines = []
99f25c8ab92f Make class version actually work, remove procedure. Daniel O'Connor <darius@dons.net.au> parents: 0 diff changeset	95 cksum = 0
0 fd8520d969c4 Initial commit, only readmeter function works Daniel O'Connor <darius@dons.net.au> parents: diff changeset	96
1 99f25c8ab92f Make class version actually work, remove procedure. Daniel O'Connor <darius@dons.net.au> parents: 0 diff changeset	97 # Read STX
99f25c8ab92f Make class version actually work, remove procedure. Daniel O'Connor <darius@dons.net.au> parents: 0 diff changeset	98 head = s.read(1)
99f25c8ab92f Make class version actually work, remove procedure. Daniel O'Connor <darius@dons.net.au> parents: 0 diff changeset	99 if len(head) == 0:
99f25c8ab92f Make class version actually work, remove procedure. Daniel O'Connor <darius@dons.net.au> parents: 0 diff changeset	100 raise Error('No reply to query')
99f25c8ab92f Make class version actually work, remove procedure. Daniel O'Connor <darius@dons.net.au> parents: 0 diff changeset	101 if head != '\x02':
99f25c8ab92f Make class version actually work, remove procedure. Daniel O'Connor <darius@dons.net.au> parents: 0 diff changeset	102 raise Error('Invalid reply header 0x%02x' % (ord(head)))
99f25c8ab92f Make class version actually work, remove procedure. Daniel O'Connor <darius@dons.net.au> parents: 0 diff changeset	103
99f25c8ab92f Make class version actually work, remove procedure. Daniel O'Connor <darius@dons.net.au> parents: 0 diff changeset	104 # Read result lines
99f25c8ab92f Make class version actually work, remove procedure. Daniel O'Connor <darius@dons.net.au> parents: 0 diff changeset	105 while True:
99f25c8ab92f Make class version actually work, remove procedure. Daniel O'Connor <darius@dons.net.au> parents: 0 diff changeset	106 line = s.readline()
99f25c8ab92f Make class version actually work, remove procedure. Daniel O'Connor <darius@dons.net.au> parents: 0 diff changeset	107 if len(line) == 0:
99f25c8ab92f Make class version actually work, remove procedure. Daniel O'Connor <darius@dons.net.au> parents: 0 diff changeset	108 raise Error('Timeout during message')
3 535076e31660 Parse the result. Daniel O'Connor <darius@dons.net.au> parents: 2 diff changeset	109
535076e31660 Parse the result. Daniel O'Connor <darius@dons.net.au> parents: 2 diff changeset	110 cksum ^= reduce(lambda x, y: x ^ y, map(ord, line))
535076e31660 Parse the result. Daniel O'Connor <darius@dons.net.au> parents: 2 diff changeset	111 if line.strip() == '!':
1 99f25c8ab92f Make class version actually work, remove procedure. Daniel O'Connor <darius@dons.net.au> parents: 0 diff changeset	112 break
99f25c8ab92f Make class version actually work, remove procedure. Daniel O'Connor <darius@dons.net.au> parents: 0 diff changeset	113 lines.append(line)
0 fd8520d969c4 Initial commit, only readmeter function works Daniel O'Connor <darius@dons.net.au> parents: diff changeset	114
1 99f25c8ab92f Make class version actually work, remove procedure. Daniel O'Connor <darius@dons.net.au> parents: 0 diff changeset	115 # Read trailer
99f25c8ab92f Make class version actually work, remove procedure. Daniel O'Connor <darius@dons.net.au> parents: 0 diff changeset	116 fin = s.read(2)
99f25c8ab92f Make class version actually work, remove procedure. Daniel O'Connor <darius@dons.net.au> parents: 0 diff changeset	117 if len(fin) != 2:
99f25c8ab92f Make class version actually work, remove procedure. Daniel O'Connor <darius@dons.net.au> parents: 0 diff changeset	118 raise Error('Timeout reading trailer')
99f25c8ab92f Make class version actually work, remove procedure. Daniel O'Connor <darius@dons.net.au> parents: 0 diff changeset	119 if fin[0] != '\x03':
99f25c8ab92f Make class version actually work, remove procedure. Daniel O'Connor <darius@dons.net.au> parents: 0 diff changeset	120 raise Error('Trailer malformed, expected 0x03, got 0x%02x' % (ord(fin[0])))
0 fd8520d969c4 Initial commit, only readmeter function works Daniel O'Connor <darius@dons.net.au> parents: diff changeset	121
1 99f25c8ab92f Make class version actually work, remove procedure. Daniel O'Connor <darius@dons.net.au> parents: 0 diff changeset	122 # Validate checksum
99f25c8ab92f Make class version actually work, remove procedure. Daniel O'Connor <darius@dons.net.au> parents: 0 diff changeset	123 cksum ^= ord(fin[0])
99f25c8ab92f Make class version actually work, remove procedure. Daniel O'Connor <darius@dons.net.au> parents: 0 diff changeset	124 if cksum != ord(fin[1]):
99f25c8ab92f Make class version actually work, remove procedure. Daniel O'Connor <darius@dons.net.au> parents: 0 diff changeset	125 raise Error('Checksum mismatch, expected 0x%02x, got 0x%02x' % (cksum, ord(fin[1])))
2 8f1a773a3cd5 Don't strip lines to make printing easier. Daniel O'Connor <darius@dons.net.au> parents: 1 diff changeset	126 self.rawreading = lines
1 99f25c8ab92f Make class version actually work, remove procedure. Daniel O'Connor <darius@dons.net.au> parents: 0 diff changeset	127 del s
99f25c8ab92f Make class version actually work, remove procedure. Daniel O'Connor <darius@dons.net.au> parents: 0 diff changeset	128
3 535076e31660 Parse the result. Daniel O'Connor <darius@dons.net.au> parents: 2 diff changeset	129 self.parse()
535076e31660 Parse the result. Daniel O'Connor <darius@dons.net.au> parents: 2 diff changeset	130 self.readdate = datetime.datetime.now()
535076e31660 Parse the result. Daniel O'Connor <darius@dons.net.au> parents: 2 diff changeset	131
535076e31660 Parse the result. Daniel O'Connor <darius@dons.net.au> parents: 2 diff changeset	132 def parse(self):
535076e31660 Parse the result. Daniel O'Connor <darius@dons.net.au> parents: 2 diff changeset	133 for l in self.rawreading:
535076e31660 Parse the result. Daniel O'Connor <darius@dons.net.au> parents: 2 diff changeset	134 m = parsere.match(l)
535076e31660 Parse the result. Daniel O'Connor <darius@dons.net.au> parents: 2 diff changeset	135 if m == None:
535076e31660 Parse the result. Daniel O'Connor <darius@dons.net.au> parents: 2 diff changeset	136 raise Error('Unable to parse result \"%s\"' % (l))
535076e31660 Parse the result. Daniel O'Connor <darius@dons.net.au> parents: 2 diff changeset	137
535076e31660 Parse the result. Daniel O'Connor <darius@dons.net.au> parents: 2 diff changeset	138 (code, xxx, value) = m.groups()
535076e31660 Parse the result. Daniel O'Connor <darius@dons.net.au> parents: 2 diff changeset	139 if code == 'C.1':
535076e31660 Parse the result. Daniel O'Connor <darius@dons.net.au> parents: 2 diff changeset	140 self.meterid, date = value.split('(')
10 c1892bd1460a Handle SI unit prefixes. Daniel O'Connor <darius@dons.net.au> parents: 8 diff changeset	141 # XXX: The meter doesn't handle DST, assume the PC is correct
3 535076e31660 Parse the result. Daniel O'Connor <darius@dons.net.au> parents: 2 diff changeset	142 self.meterdate = datetime.datetime.strptime(date, '%H:%M %d-%m-%y')
535076e31660 Parse the result. Daniel O'Connor <darius@dons.net.au> parents: 2 diff changeset	143 elif code == '1.8.0':
10 c1892bd1460a Handle SI unit prefixes. Daniel O'Connor <darius@dons.net.au> parents: 8 diff changeset	144 self.importWh = self.parsevalue(value)
3 535076e31660 Parse the result. Daniel O'Connor <darius@dons.net.au> parents: 2 diff changeset	145 elif code[0:4] == '1.8.':
535076e31660 Parse the result. Daniel O'Connor <darius@dons.net.au> parents: 2 diff changeset	146 # Differing tarrifs which I don't care about
535076e31660 Parse the result. Daniel O'Connor <darius@dons.net.au> parents: 2 diff changeset	147 pass
535076e31660 Parse the result. Daniel O'Connor <darius@dons.net.au> parents: 2 diff changeset	148 elif code == '2.8.0':
10 c1892bd1460a Handle SI unit prefixes. Daniel O'Connor <darius@dons.net.au> parents: 8 diff changeset	149 self.exportWh = self.parsevalue(value)
3 535076e31660 Parse the result. Daniel O'Connor <darius@dons.net.au> parents: 2 diff changeset	150 else:
535076e31660 Parse the result. Daniel O'Connor <darius@dons.net.au> parents: 2 diff changeset	151 print 'Unknown code', code
535076e31660 Parse the result. Daniel O'Connor <darius@dons.net.au> parents: 2 diff changeset	152
10 c1892bd1460a Handle SI unit prefixes. Daniel O'Connor <darius@dons.net.au> parents: 8 diff changeset	153 @staticmethod
c1892bd1460a Handle SI unit prefixes. Daniel O'Connor <darius@dons.net.au> parents: 8 diff changeset	154 def parsevalue(value):
c1892bd1460a Handle SI unit prefixes. Daniel O'Connor <darius@dons.net.au> parents: 8 diff changeset	155 count, units = value.split('*')
c1892bd1460a Handle SI unit prefixes. Daniel O'Connor <darius@dons.net.au> parents: 8 diff changeset	156
c1892bd1460a Handle SI unit prefixes. Daniel O'Connor <darius@dons.net.au> parents: 8 diff changeset	157 if units[0] == 'm':
c1892bd1460a Handle SI unit prefixes. Daniel O'Connor <darius@dons.net.au> parents: 8 diff changeset	158 exp = -3
c1892bd1460a Handle SI unit prefixes. Daniel O'Connor <darius@dons.net.au> parents: 8 diff changeset	159 elif units[0] == 'u':
c1892bd1460a Handle SI unit prefixes. Daniel O'Connor <darius@dons.net.au> parents: 8 diff changeset	160 exp = -6
c1892bd1460a Handle SI unit prefixes. Daniel O'Connor <darius@dons.net.au> parents: 8 diff changeset	161 elif units[0] == 'n':
c1892bd1460a Handle SI unit prefixes. Daniel O'Connor <darius@dons.net.au> parents: 8 diff changeset	162 exp = -9
c1892bd1460a Handle SI unit prefixes. Daniel O'Connor <darius@dons.net.au> parents: 8 diff changeset	163 elif units[0] == 'k':
c1892bd1460a Handle SI unit prefixes. Daniel O'Connor <darius@dons.net.au> parents: 8 diff changeset	164 exp = 3
c1892bd1460a Handle SI unit prefixes. Daniel O'Connor <darius@dons.net.au> parents: 8 diff changeset	165 elif units[0] == 'M':
c1892bd1460a Handle SI unit prefixes. Daniel O'Connor <darius@dons.net.au> parents: 8 diff changeset	166 exp = 6
c1892bd1460a Handle SI unit prefixes. Daniel O'Connor <darius@dons.net.au> parents: 8 diff changeset	167 elif units[0] == 'G':
c1892bd1460a Handle SI unit prefixes. Daniel O'Connor <darius@dons.net.au> parents: 8 diff changeset	168 exp = 9
c1892bd1460a Handle SI unit prefixes. Daniel O'Connor <darius@dons.net.au> parents: 8 diff changeset	169 elif units[1] == 'T':
c1892bd1460a Handle SI unit prefixes. Daniel O'Connor <darius@dons.net.au> parents: 8 diff changeset	170 exp = 12
c1892bd1460a Handle SI unit prefixes. Daniel O'Connor <darius@dons.net.au> parents: 8 diff changeset	171 else:
c1892bd1460a Handle SI unit prefixes. Daniel O'Connor <darius@dons.net.au> parents: 8 diff changeset	172 exp = 1
c1892bd1460a Handle SI unit prefixes. Daniel O'Connor <darius@dons.net.au> parents: 8 diff changeset	173 return float(count) * 10 ** exp
c1892bd1460a Handle SI unit prefixes. Daniel O'Connor <darius@dons.net.au> parents: 8 diff changeset	174
3 535076e31660 Parse the result. Daniel O'Connor <darius@dons.net.au> parents: 2 diff changeset	175 def __str__(self):
535076e31660 Parse the result. Daniel O'Connor <darius@dons.net.au> parents: 2 diff changeset	176 return 'Time: %s, Meter: %s, Import: %d Wh, Export: %d Wh' % (self.readdate.strftime('%Y/%m/%d %H:%M'),
535076e31660 Parse the result. Daniel O'Connor <darius@dons.net.au> parents: 2 diff changeset	177 self.meterid, self.importWh, self.exportWh)
0 fd8520d969c4 Initial commit, only readmeter function works Daniel O'Connor <darius@dons.net.au> parents: diff changeset	178 def main():
8 08b192a6e189 Add RRD output mode. Daniel O'Connor <darius@dons.net.au> parents: 5 diff changeset	179 parser = optparse.OptionParser(usage = 'usage: %prog [options] port',
08b192a6e189 Add RRD output mode. Daniel O'Connor <darius@dons.net.au> parents: 5 diff changeset	180 epilog = 'Read out from an IEC1107 meter')
08b192a6e189 Add RRD output mode. Daniel O'Connor <darius@dons.net.au> parents: 5 diff changeset	181 parser.add_option('-r', '--rrd', dest = 'rrd', action = 'store_true', default = False, help = 'Output in a format suitable for rrdtool')
08b192a6e189 Add RRD output mode. Daniel O'Connor <darius@dons.net.au> parents: 5 diff changeset	182 (opt, args) = parser.parse_args()
08b192a6e189 Add RRD output mode. Daniel O'Connor <darius@dons.net.au> parents: 5 diff changeset	183 if len(args) != 1:
08b192a6e189 Add RRD output mode. Daniel O'Connor <darius@dons.net.au> parents: 5 diff changeset	184 parser.error('Need to specify port')
1 99f25c8ab92f Make class version actually work, remove procedure. Daniel O'Connor <darius@dons.net.au> parents: 0 diff changeset	185
8 08b192a6e189 Add RRD output mode. Daniel O'Connor <darius@dons.net.au> parents: 5 diff changeset	186 res = IEC1107Reading(args[0])
08b192a6e189 Add RRD output mode. Daniel O'Connor <darius@dons.net.au> parents: 5 diff changeset	187 if opt.rrd:
08b192a6e189 Add RRD output mode. Daniel O'Connor <darius@dons.net.au> parents: 5 diff changeset	188 print '%s:%d:%d' % (res.readdate.strftime('%s'), res.importWh, res.exportWh)
08b192a6e189 Add RRD output mode. Daniel O'Connor <darius@dons.net.au> parents: 5 diff changeset	189 else:
08b192a6e189 Add RRD output mode. Daniel O'Connor <darius@dons.net.au> parents: 5 diff changeset	190 print res
5 b686ad203c1e Don't print the raw value AND the parsed ones. Daniel O'Connor <darius@dons.net.au> parents: 4 diff changeset	191
0 fd8520d969c4 Initial commit, only readmeter function works Daniel O'Connor <darius@dons.net.au> parents: diff changeset	192 if __name__ == '__main__':
fd8520d969c4 Initial commit, only readmeter function works Daniel O'Connor <darius@dons.net.au> parents: diff changeset	193 main()
fd8520d969c4 Initial commit, only readmeter function works Daniel O'Connor <darius@dons.net.au> parents: diff changeset	194

Mercurial > ~darius > hgwebdir.cgi > iec1107

annotate iec1107.py @ 12:b4de1b6f8f78