FAM3 上位通信

FAM3 イーサネット上位通信　　ラズベリーパイ

PRO

IPアドレス	host='192.168.1.4'
ポート番号	port=12289

横河　FAM3上位通信

#from __future__ import print_function
#import sys
import socket



class MySocket:
"""demonstration class only
- coded for clarity, not efficiency


def __init__(self, sock=None):
print('init')
if sock is None:
self.sock = socket.socket(
socket.AF_INET, socket.SOCK_STREAM)
else:
self.sock = sock

def connect(self, host, port):
print('connect')

self.sock.connect((host, port))
return 0
except socket.error:
print('ソケットエラーです')
return -1

def mysend(self, msg):
print('mysend')
MSGLEN=len(msg)
self.sock.send(msg.encode('utf-8'))


def myreceive(self):
print('myreceive')
data=(self.sock.recv(1024))

return data

#--------------------------------------------------------------------

def main():
host='192.168.1.4'
port=12289
myapp = MySocket()
ret=myapp.connect(host,port)
#1ワードの読み出し　16ビット符号有り
if ret==0:
cmd='01WRD'
myapp.mysend(cmd+'D00001,04'+'\r\n')
count=4 ret=[] anser=[]
ret=myapp.myreceive().decode('utf-8')
# print(ret)
datanum=[]
anser=ret[2:4]

if anser=='OK':
for i in range(1,count+1):
start=4*i
end=4*i+4
data=(int(ret[start:end],16))
if data>=32767:
data=data-65536
datanum.append(data)
print(datanum[i-1])


#1ワードの読み出し　16ビット符号無し
cmd='01WRD'
myapp.mysend(cmd+'D00001,04'+'\r\n')
count=4 ret=[] anser=[]
ret=myapp.myreceive().decode('utf-8')

datanum=[]
anser=ret[2:4]

if anser=='OK':
for i in range(1,count+1):
start=4*i
end=4*i+4
data=(int(ret[start:end],16))
datanum.append(data)
print(datanum[i-1])


#1ワードの読み出し　32ビット符号無し
cmd='01WRD'
myapp.mysend(cmd+'D00001,04'+'\r\n')
count=4 ret=[] anser=[]
ret=myapp.myreceive().decode('utf-8')

datanum=[]
anser=ret[2:4]

if anser=='OK':
for i in range(0,count,2):
start=4*i+4
end=4+4*i+4
hstart=4+4*i+4
hend=4*i+8+4
datalow=(int(ret[start:end],16))
datahigh=(int(ret[hstart:hend],16))
data=datahigh*65536+datalow
datanum.append(data)
print(data)

if __name__ == '__main__':

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