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Add waagen simulator

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This commit is contained in:
Lorenz Stechauner
2023-08-11 18:43:38 +02:00
parent 399a3032b0
commit 6e0b79ee95
4 changed files with 106 additions and 0 deletions
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1
tt/STE.csv
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@ -122,3 +122,4 @@ date,from,to,hours,category,name
2023-08-09,17:00,20:00,3,printing,Page layout
2023-08-10,10:00,14:00,4,meeting,Test Waage
2023-08-10,16:00,19:00,3,wpf,Bug fixing
2023-08-11,16:00,18:45,2.75,scales,Waage

1 date from to hours category name
122 2023-08-09 17:00 20:00 3 printing Page layout
123 2023-08-10 10:00 14:00 4 meeting Test Waage
124 2023-08-10 16:00 19:00 3 wpf Bug fixing
125 2023-08-11 16:00 18:45 2.75 scales Waage

BIN
waagen/SysTec/Datensatzbeschreibung SysTec IT.pdf Normal file
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24
waagen/SysTec/IT3000A/aufzeichnung1.txt Normal file
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@ -0,0 +1,24 @@
<RN1><000011.08.2319:03 01 0 0 0kg 1 43166>
<RN1><000011.08.2319:03 01 0 0 0kg 1 43166>
<RM1><000011.08.2319:03 01 0 0 0kg 1 43166>
<RM1><000011.08.2319:03 01 0 0 0kg 1 43166>
<RN1><000011.08.2319:04 01 0 0 0kg 1 21615>
<RM1><000011.08.2319:04 01 0 0 0kg 1 21615>
<RN1><000011.08.2319:04 01 0 0 0kg 1 21615>
<RM1><000011.08.2319:04 01 0 0 0kg 1 21615>
<RN1><000011.08.2319:05 01 0 0 0kg 1 40446>
<RM1><000011.08.2319:05 01 0 0 0kg 1 40446>
<RN1><000011.08.2319:05 01 0 0 0kg 1 40446>
<RM1><000011.08.2319:05 01 0 0 0kg 1 40446>
<RN1><000011.08.2319:06 01 0 0 0kg 1 34638>
<RM1><000011.08.2319:06 01 0 0 0kg 1 34638>
<RN1><000011.08.2319:07 01 0 0 0kg 1 20191>
<RM1><000011.08.2319:07 01 0 0 0kg 1 20191>
<RN1><000011.08.2319:08 01 0 0 0kg 1 16047>
<RM1><000011.08.2319:08 01 0 0 0kg 1 16047>
<RN1><000011.08.2319:09 01 0 0 0kg 1 63294>
<RM1><000011.08.2319:09 01 0 0 0kg 1 63294>
<RN1><000011.08.2319:10 01 0 0 0kg 1 7718>
<RM1><000011.08.2319:10 01 0 0 0kg 1 7718>
<RN1><000011.08.2319:12 01 0 0 0kg 1 52487>
<RM1><000011.08.2319:12 01 0 0 0kg 1 52487>

81
waagen/simulator.py Executable file
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@ -0,0 +1,81 @@
#!/usr/bin/env python3
# -*- coding: utf-8 -*-
# SysTec IT3000A uses CRC16-modbus
import argparse
import socket
import datetime
import random
import time
import crcmod.predefined
IDENT_NR = 0
def crc16_modbus(data: bytes) -> int:
crc = crcmod.predefined.Crc('modbus')
crc.update(data)
return int(crc.hexdigest(), 16)
def handle_systec_it3000a(req: bytes) -> bytes:
global IDENT_NR
if not req.startswith(b'<') or not req.endswith(b'>'):
return b'<01>\r\n'
req = req[1:-1]
if len(req) > 3:
return b'<02>\r\n'
if req.startswith(b'RN'):
incr = True
elif req.startswith(b'RM'):
incr = False
else:
return b'<02>\r\n'
if incr:
time.sleep(random.randint(0, 40) / 10.0)
gew = random.randint(40, 4000)
m = random.randint(1, 10)
match m:
case 1:
return b'<12>\r\n'
case 2:
incr = False
gew = 0
if incr:
IDENT_NR += 1
now = datetime.datetime.now()
data = f'0000{now:%d.%m.%y%H:%M}{IDENT_NR if incr else 0:4}1{gew:8}{0:8}{gew:8}kg {1:3}'.encode('ascii')
return b'<' + data + f'{crc16_modbus(data):8}'.encode('ascii') + b'>\r\n'
def main() -> None:
s = socket.socket()
s.bind(('0.0.0.0', 1234))
s.listen()
print('Ready for connections')
while True:
c, a = s.accept()
print(f'Accepting connection from {a}')
try:
while True:
req = c.recv(1024)
print(req.decode('ascii'), end='')
res = handle_systec_it3000a(req)
print(res.decode('ascii'), end='')
c.send(res)
except:
pass
if __name__ == '__main__':
parser = argparse.ArgumentParser()
args = parser.parse_args()
main()