海德瑞188通讯协议.pdf

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1、目录1读计量数据...............................................................................................................................32读检定数据：...........................................................................................................................43写标准时间：.........

2、..................................................................................................................54写波特率和仪表类型...............................................................................................................55进入检定状态.......................................

3、....................................................................................66写表号和时间：厂商自定义控制码39................................................................................67写流量修正值............................................................................................

4、...............................78写温度修正值...........................................................................................................................89写出厂启用：.................................................................................................................

5、..........9-2-1读计量数据1.上位机发送指令737373737373737373737373737373737373737373737373737373737373737373737373737373737373737373737373737373737373737373737373737373737373737373737373FEFE6820AAAAAAAAAAAAAA01031F9000E116该指令前端若干个73为启动码，个数用户可自定。发送指令中必须要有划线部分内容，否则通讯不成功。2.上位机接收数据FEFEFEFEFEFEFEFEFE

6、FEFEFEFE682500000000001111○1○2○3○4812E1F90000000000005005100000500000000170000000035○5○6○7○8○9○10○11○12290200002C592700572700180900480023010111200000A516○13○14○15○16○17○18○19○20接收数据帧解析：○1帧起始68H一个字节○2仪表类型20H~29H一个字节○3地址A0-A3表号四个字节○4地址A4-A6厂商代码三个字节○5控制字81H○6数据长度2EH○7数据标识901FH○8序列号SERX

7、XH(1字节HEX码)○9累计冷量XXXXXX.XX+单位字节五个字节(4字节BCD码、1字节HEX码)○10当前热量XXXXXX.XX+单位字节五个字节(4字节BCD码、1字节HEX码)○11热功率XXXXXX.XX+单位字节五个字节(4字节BCD码、1字节HEX码)○12流速XXXX.XXXX+单位字节五个字节(4字节BCD码、1字节HEX码)○13累计流量XXXXXX.XX+单位字节五个字节(4字节BCD码、1字节HEX码)○14供水温度XXXXXXH三个字节，单位℃(2字节BCD码、1字节HEX码)○15回水温度XXXXXXH三个字节，单位℃(2字节B

8、CD码、1字节HEX码)○16运行时间