关于Python snap7 plc

snap7-full-1.4.2 examples 里面自带c++、c、c#、delphi等例子。

pip install python-snap7

import snap7
import struct
from snap7 import util

# 连接
client = snap7.client.Client()
client.connect('192.168.2.1', 0, 1)

# 读取
# DB1.DBD100
data = client.db_read(1, 100, 4)
snap7Real = util.get_real(data, 0)
print(snap7Real)

# 关闭
client.disconnect()