¶ DLT645转Modbus
以下教程使用专用电表转Modbus模块MD905
¶ 配置串口
-
设置串口1接电表485,波特率2400，偶校验
-
设置串口2输出modbus，接PC，波特率9600 8N1
¶ 配置电表采集
- 启用DLT645，配置需要采集的变量
¶ 配置Modbus从机
- 配置虚拟设备
- 配置Modbus指令
¶ 配置转发规则
¶ 外部读取
- 使用Modbus poll连接到网关的串口2， 设备ID就是虚拟设备的id，默认是100.寄存器地址则为modbus指令地址，以上设置是0、2、4，数据类型float
¶ 参考配置
- 需要增加其他的采集变量，直接在645下面添加，然后再modbus指令映射下面也增加，注意指令读取长度要够长
{"type":"base","version":"V5","base":{"host":"","param_ver":0,"flow":0,"fota":1,"log":1,"nnt":3,"shell":[1,120,1],"report":0,"pmod":0,"pswd":"","pins":[33,12,35],"reboot":0,"mqr":[1,20,100,1],"ofm":1,"ntp":"","eth":[1,"","",""],"wifi":[1,"","",-1,1],"dns":["",""]},"uconf":[[1,2400,3,2,1,4,1,20,"",0],[2,9600,3,0,1,-1,1,20,"",0]],"nconf":[[],[],[],[],[],[]],"param_ver":0,"h2r":[],"mb":[[2,1,21,[22],1,0,0,"","","",0,100,0,5,3,0],[[10,100,"64030000000a"],[["w",0,"f",1],["ua",2,"f",1],["ia",4,"f",1]]]],"up":{},"vd":{"d":[100,22,[2],0,0],"c3":[],"c2":[],"c1":[],"c1u":[1,0],"c3u":[0,100]},"rule":[[24,21,4,"",[],[[4,"",""]]]],"d6":[[3,100,24,[1],1,0,0,"",4],[[10,0,"AAAAAAAAAAAA"],[["w","10000"],["ua","2010100"],["ia","2020100"]]]]}