标签： CDT 规约解读

CDT规约报文解读

下文是一段CDT报文解读的例子，读者可以根据CDT规约标准来逐渐理解CDT规约。

RTU发送

重要遥测(A帧) 源地址=1 目标地址=1 信息字数=32

eb 90 eb 90 eb 90 同步头

71 61 20 01 01 11 控制字

00 00 00 00 00 FF 01 00 00 00 00 9d 02 00 00 00 00 3b 03 00 00 00 00 59 04 00 00 00 00 70 05 00 00 00 00 12

06 00 00 00 00 b4 07 00 00 00 00 d6 08 00 00 00 00 e6

09 00 00 00 00 84 0a 00 00 00 00 22 0b 00 00 00 00 40

0c 00 00 00 00 69 0d 00 00 00 00 0b 0e 00 00 00 00 ad

0f 00 00 00 00 cf 10 00 00 00 00 cd 11 00 00 00 00 af

12 00 00 00 00 09 13 00 00 00 00 6b 14 00 00 00 00 42

15 00 00 00 00 20 16 00 00 00 00 86 17 00 00 00 00 e4

18 00 00 00 00 d4 19 00 00 00 00 b6 1a 00 00 00 00 10

1b 00 00 00 00 72 1c 00 00 00 00 5b 1d 00 00 00 00 39

1e 00 00 00 00 9f 1f 00 00 00 00 fd

解读

eb 90 eb 90 eb 90 同步头

71 61 20 01 01 11 控制字 61重要遥测 20 32个信息数 01 源站， 01 目的站 11 校验

00 00 00 00 00 FF

00（信息地址） 00 00 （点号0，值为0 ）00 00 （点号1，值为0 ） FF （校验）

解读 01 00 00 00 00 9d 其他类似

01（信息地址） 00 00 （点号2，值为0 ）00 00 （点号3，值为0 ） FF （校验）

次要遥测（B帧） 源地址=1 目标地址=1 信息字数=32

eb 90 eb 90 eb 90 同步头

71 c2 20 01 01 d4 控制字

20 00 00 00 00 9b 21 00 00 00 00 f9 22 00 00 00 00 5f

23 00 00 00 00 3d 24 00 00 00 00 14 25 00 00 00 00 76

26 00 00 00 00 d0 27 00 00 00 00 b2 28 00 00 00 00 82

29 00 00 0000 e0 2a 00 00 00 00 46 2b 00 00 00 00 24

2c 00 00 00 00 0d 2d 00 00 00 00 6f 2e 00 00 00 00 c9

2f 00 00 00 00 ab 30 00 00 00 00 a9 31 00 00 00 00 cb

32 00 00 00 00 6d 33 00 00 00 00 0f 34 00 00 00 00 26

35 0000 00 00 44 36 00 00 00 00 e2 37 00 00 00 00 80

38 00 00 00 00 b0 39 00 00 00 00 d2 3a 00 00 00 00 74

3b 00 00 00 00 16 3c 00 00 00 00 3f 3d 00 00 00 00 5d

3e 00 00 00 00 fb 3f 00 00 00 00 99

解读 ：

eb 90 eb 90 eb 90 同步头

71 c2 20 01 01 d4 控制字 c2次要遥测 20 32个信息数 01 源站， 01 目的站 d4 校验

信息字解读同上。

电能脉冲数值（D2帧） 源地址=1 目标地址=1 信息字数=64

eb 90 eb 90 eb 90 71 85 40 01 01 e8

a0 00 00 00 00 0c a1 00 00 00 00 6e a2 00 00 00 00 c8

a3 00 00 00 00 aa a4 00 00 00 00 83 a5 00 00 00 00 e1

a6 00 00 00 00 47 a7 00 00 00 00 25 a8 00 00 00 00 15

a9 00 00 00 00 77 aa 00 00 00 00 d1 ab 00 00 00 00 b3

ac 00 00 00 00 9a ad 00 00 00 00 f8 ae 00 00 00 00 5e

af 00 00 00 00 3c b0 00 00 00 00 3e b1 00 00 00 00 5c

b2 00 00 00 00 fa b3 00 00 00 00 98 b4 00 00 00 00 b1

b5 00 00 00 00 d3 b6 00 00 00 00 75 b7 00 00 00 00 17

b8 00 00 00 00 27 b9 00 00 00 00 45 ba 00 00 00 00 e3

bb 00 00 00 00 81 bc 00 00 00 00 a8 bd 00 00 00 00 ca

be 00 00 00 00 6c bf 00 00 00 00 0e c0 00 00 00 00 a0

c1 00 00 00 00 c2 c2 00 00 00 00 64 c3 00 00 00 00 06

c4 00 00 00 00 2f c5 00 00 00 00 4d c6 00 00 00 00 eb

c7 00 00 00 00 89 c8 00 00 00 00 b9 c9 00 00 00 00 db

ca 00 00 00 00 7d cb 00 00 00 00 1f cc 00 00 00 00 36

cd 00 00 00 00 54 ce 00 00 00 00 f2 cf 00 00 00 00 90

d0 00 00 00 00 92 d1 00 00 00 00 f0 d2 00 00 00 00 56

d3 00 00 00 00 34 d4 00 00 00 00 1d d5 00 00 00 00 7f

d6 00 00 00 00 d9 d7 00 00 00 00 bb d8 00 00 00 00 8b

d9 00 00 00 00 e9 da 00 00 00 00 4f db 00 00 00 00 2d

dc 00 00 00 00 04 dd 00 00 00 00 66 de 0000 00 00 c0

df 00 00 00 00 a2

解读

eb 90 eb 90 eb 90 同步头

71 85 40 01 01 e8 控制字 85电能脉冲记数值 40 64个信息数 01 源站， 01 目的站 e8 校验

a0 00 00 00 00 0c 第0路脉冲 脉冲计数值 0，注意计数值为32位。

a1 00 00 00 00 6e第1路脉冲 脉冲计数值 0，注意计数值为32位

其他类似。