<< 点击显示目录 >> 主页 振动监测 > X20(c)CM4810使用手册 > 寄存器说明 - Register description > Flat 流 - Flatstream > 通过 Flatstream 传输特征值 - Transferring characteristic values via Flatstream > Flatstream 特征值的结构 - Structure of the characteristic value Flatstream |
Each characteristic value transferred from the module via Flatstream has a length of 3 bytes with the high byte first. For the exact format, see Characteristic values. The stream has a total length of 240 bytes. First, all characteristic values from channel 1 are transferred, then those from channels 2, 3 and 4. The 32 frequency bands then follow next.
The RmsVelRaw and RmsVelEnvelope characteristic values and FrequencyBandxx are only transferred if they are set to a velocity signal and the EnableVelocityCalculation bit for the respective channel is set. Otherwise, 0 is output. EnableVelocityCalculation is configured in the SensorConfig register.
通过Flatstream从模块传输的每个特征值的长度为3个字节,其中高字节在前(高字节优先)。有关确切格式,请参见Characteristic values。 该流的总长度为240字节。首先,传输来自通道1的所有特征值,然后传输来自通道2、3和4的特征值,接下来是32个频带。
RmsVelRaw 和 RmsVelEnvelope 特征值和 FrequencyBandxx 只有在它们被设置为速度信号并且各自通道的 EnableVelculation 位被设置时才被传送,否则,将输出0。 EnableVelocityCalculation 是在 SensorConfig 寄存器中配置的。
Byte offset in the stream 流中的字节偏移量 |
Characteristic value 特征值 |
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Channel 1 通道 1 |
Channel 2 通道 2 |
Channel 3 通道 3 |
Channel 4 通道 4 |
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Channel parameters 通道参数 |
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0 |
36 |
72 |
108 |
|
3 |
39 |
75 |
111 |
|
6 |
42 |
78 |
114 |
|
9 |
45 |
81 |
117 |
|
12 |
48 |
84 |
120 |
|
15 |
51 |
87 |
123 |
|
18 |
54 |
90 |
126 |
|
21 |
57 |
93 |
129 |
|
24 |
60 |
96 |
132 |
|
27 |
63 |
99 |
135 |
|
30 |
66 |
102 |
138 |
|
33 |
69 |
105 |
141 |
|
Frequency band 1 - 32 |
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144 |
||||
: |
: |
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237 |