¶ Modbus TCP 长连接模式
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这里使用Modbus slave模拟一个modbus tcp 从机
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使用上位机设置网关，新建网络通道，TCP连接到电脑modbus slave
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设置modbus协议
¶ Modbus TCP采集，json上传案例
{"type":"base","version":"V4","base":{"host":"","param_ver":"0","flow":0,"fota":1,"log":1,"ntp":0,"nnt":3,"shell":[1,120,1],"report":0,"pmod":0,"pswd":"","pins":[13,8,12],"reboot":0,"mqr":[1,20,100,1],"lbs":1,"ofm":0,"eth":[0,"192.168.3.200","255.255.255.0","192.168.3.1",0],"dns1":["114.114.114.114","114.114.114.114"],"apn":[0,"","",""]},"uconf":[[],[],[]],"nconf":[["mqtt","test.developlink.cloud",1883,300,"","devlink","devlink","","",0,1,0,0,"",[21],0,0],[],[],[],[],["tcp","192.168.3.100",502,"","",300,[6],-1,0,"",""]],"pnconf":[[]],"param_ver":"0","h2r":[],"mb":[[2,5,21,[106],1,0,0,"/{productld}/deviceld/properties/write/reply","","",0,100,0,5,3,0,0],[[10,96,"010300010001"],[["a",1,"H",1]]]],"d6":[],"szy":[],"l6":[],"up":{},"vd":{},"rule":[],"lp":[],"tts":[]}
¶ Modbus TCP 短连接模式
开发中TODO