mirror of
https://github.com/espressif/esp-modbus.git
synced 2026-08-03 20:24:09 +02:00
Alex Lisitsyn
38 lines
1.4 KiB
Plaintext
38 lines
1.4 KiB
Plaintext
# Modbus float_abcd frame structure diagram
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blockdiag mb_float_frame {
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# global properties
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span_width = 5;
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span_height = 5;
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node_height = 30;
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default_fontsize = 15;
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default_group_color = lightgrey;
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class spacer [shape=none, width=10];
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# tuning node properties and connections
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0,1,2 [class=spacer];
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0; note
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1; header
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2; response -- uid -- cmd -- len -- fl_abcd -- crc
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group float_abcd_packet {
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label = "PDU";
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color = gray;
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shape = line;
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style = dashed;
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group{uid,resp_uid};group{cmd,resp_cmd};group{len,resp_len};group{crc,resp_crc};
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group float_abcd{
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color = blue;
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shape = line;
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style = dashed;
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fl_abcd;dt_abcd;
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}
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}
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note[label="1: Unit Identificator, 2: Function code, 3: Data length, 4: Float data array, 5: Checksum",colwidth=6,color=lightyellow,shape=roundedbox]
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header[label="FLOAT_ABCD = 0x4640e400 = 12345.0",colwidth=6,color=lightgreen]
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response[label="RX:",color=yellow];
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uid[label="UID",numbered=1];cmd[label="FC",numbered=2];
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len[label="LENGTH",numbered=3];crc[label="CRC",numbered=5];
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resp_uid[label="0x01"];resp_cmd[label="0x03"];resp_len[label="0x08"];resp_crc[label="0x9065"];
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fl_abcd[label="FLOAT_ABCD",color=lightgreen,numbered=4];
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dt_abcd[label="0xE4004640",shape=note];
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}
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