modbus add extended float/integer support for custom and third party devices

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Alex Lisitsyn committed 2024-04-19 17:11:08 +08:00
1 parent 430217563f
commit 0cf6bb2c6a
49 files changed
+3124 -388

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# Modbus float_abcd frame structure diagram
blockdiag mb_float_frame {
# global properties
span_width = 2;
span_height = 5;
node_height = 25;
default_fontsize = 16;
default_group_color = lightgrey;
class spacer [shape=none, width=10];
# tuning node properties and connections
0,1,2 [class=spacer];
0; note
1; header
2; response -- uid -- cmd -- len -- fl_abcd -- crc
group float_abcd_packet {
label = "PDU";
color = gray;
shape = line;
style = dashed;
group{uid,resp_uid};group{cmd,resp_cmd};group{len,resp_len};group{crc,resp_crc};
group float_abcd{
color = blue;
shape = line;
style = dashed;
fl_abcd;dt_abcd;
}
}
note[label="1: Unit Identificator, 2: Function code, 3: Data length, 4: Float data array, 5: Checksum",colwidth=6,color=lightyellow,shape=roundedbox]
header[label="FLOAT_ABCD = 0x4640e400 = 12345.0",colwidth=6,color=lightgreen]
response[label="RX:",color=yellow];
uid[label="UID",numbered=1];cmd[label="FC",numbered=2];
len[label="LENGTH",numbered=3];crc[label="CRC",numbered=5];
resp_uid[label="0x01"];resp_cmd[label="0x03"];resp_len[label="0x08"];resp_crc[label="0x9065"];
fl_abcd[label="FLOAT_ABCD",color=lightgreen,numbered=4];
dt_abcd[label="0xE4004640",shape=note];
}
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# Modbus frame packaging examples
blockdiag mb_master_frames {
# global properties
span_width = 5;
span_height = 5;
node_height = 25;
default_group_color = lightgrey;
default_fontsize = 15;
# tuning node properties and connections
group 16bit_packets {
label = "16bit frame";
color = red;
shape = line;
style = dashed;
16bit_notes;
}
group 32bit_packets {
label = "32bit frame";
color = green;
shape = line;
style = dashed;
group{32bit_notes};
}
group 64bit_packets {
label = "64bit frame";
color = blue;
shape = line;
style = dashed;
64bit_notes;
}
16bit_notes[label="UINT16, INT16 VALUE = 0x3039 = (uint16_t)12345", width=600, color=orange, shape = roundedbox];
req_u16_hd1[label= "TX:| UID | FC | REG_START | REG_LEN | CRC |", color=lightyellow, width=380, colwidth=2, shape = roundedbox ,group=16bit_packets];
req_u16_frm1[label="TX:| 01 | 03 | 00 04 | 00 02 | 85 CA |", color=lightgrey, width=380, colwidth=2,group=16bit_packets];
rsp_u16_hd1[label= "RX:| UID | FC | LEN | UINT16_AB1 | UINT16_AB2 | CRC |", color=lightyellow, width=380, colwidth=2, shape = roundedbox ,group=16bit_packets];
rsp_u16_frm1[label="RX:| 01 | 03 | 04 | 30 39 | 30 39 | F1 2C |", color=lightgrey, width=380, colwidth=2,group=16bit_packets];
rsp_u16_hd2[label= "RX:| UID | FC | LEN | UINT16_BA1 | UINT16_BA2 | CRC |\n ", color=lightyellow, width=380, colwidth=2, shape = roundedbox, group=16bit_packets];
rsp_u16_frm2[label="RX:| 01 | 03 | 04 | 39 30 | 39 30 | E4 E4 |\n", color=lightgrey, width=380, colwidth=2,group=16bit_packets];
32bit_notes[label="(UINT32, INT32) FLOAT32 VALUE = 0x4640e400 = 12345.0", width=600, color=lightgreen, shape = roundedbox];
req_fl_hd1[label= "TX:| UID | FC | REG_START | REG_LEN | CRC |", color=lightyellow, width=380, colwidth=2, shape = roundedbox ,group=32bit_packets];
req_fl_frm1[label="TX:| 01 | 03 | 00 XX | 00 04 | C5 CB |", color=lightgrey, width=380, colwidth=2,group=32bit_packets];
rsp_fl_hd1[label= "RX:| UID | FC | LEN | FLOAT_ABCD1 | FLOAT_ABCD2 | CRC |", color=lightyellow, width=380, colwidth=2, shape = roundedbox ,group=32bit_packets];
rsp_fl_frm1[label="RX:| 01 | 03 | 08 | E4 00 46 40 | E4 00 46 40 | 90 65 |", color=lightgrey, width=380, colwidth=2,group=32bit_packets];
rsp_fl_hd2[label= "RX:| UID | FC | LEN | FLOAT_CDAB1 | FLOAT_CDAB2 | CRC |\n ", color=lightyellow, width=380, colwidth=2, shape = roundedbox, group=32bit_packets];
rsp_fl_frm2[label="RX:| 01 | 03 | 08 | 46 40 E4 00 | 46 40 E4 00 | 18 71 |\n", color=lightgrey, width=380, colwidth=2,group=32bit_packets];
rsp_fl_hd3[label= "RX:| UID | FC | LEN | FLOAT_BADC1 | FLOAT_BADC2 | CRC |\n ", color=lightyellow, width=380, colwidth=2, shape = roundedbox, group=32bit_packets];
rsp_fl_frm3[label="RX:| 01 | 03 | 08 | 00 E4 40 46 | 00 E4 40 46 | 46 D3 |\n", color=lightgrey, width=380, colwidth=2,group=32bit_packets];
rsp_fl_hd4[label= "RX:| UID | FC | LEN | FLOAT_DCAB1 | FLOAT_DCAB2 | CRC |\n ", color=lightyellow, width=380, colwidth=2, shape = roundedbox, group=32bit_packets];
rsp_fl_frm4[label="RX:| 01 | 03 | 08 | 40 46 00 E4 | 40 46 00 E4 | 32 6B |\n", color=lightgrey, width=380, colwidth=2,group=32bit_packets];
64bit_notes[label="(UINT64, INT64) FLOAT64 VALUE = 0x40c81c8000000000 = 12345.0", width=600, color=lightblue, shape = roundedbox];
req_dbl_hd1[label= "TX:| UID | FC | REG_START | REG_LEN | CRC |", color=lightyellow, width=380, colwidth=2, shape = roundedbox ,group=64bit_packets];
req_dbl_frm1[label="TX:| 01 | 03 | 00 28 | 00 08 | C4 04 |", color=lightgrey, width=380, colwidth=2,group=64bit_packets];
rsp_dbl_hd1[label= "RX:| UID | FC | LEN | DOUBLE_ABCDEFGH1 | DOUBLE_ABCDEFGH2 | CRC |", color=lightyellow, width=380, colwidth=2, shape = roundedbox ,group=64bit_packets];
rsp_dbl_frm1[label="RX:| 01 | 03 | 10 | 00 00 00 00 1C 80 40 C8 | 00 00 00 00 1C 80 40 C8 | 9F 4B |", color=lightgrey, width=380, colwidth=2,group=64bit_packets];
rsp_dbl_hd2[label= "RX:| UID | FC | LEN | DOUBLE_HGFEDCBA1 | DOUBLE_HGFEDCBA2 | CRC |\n ", color=lightyellow, width=380, colwidth=2, shape = roundedbox, group=64bit_packets];
rsp_dbl_frm2[label="RX:| 01 | 03 | 10 | C8 40 80 1C 00 00 00 00 | C8 40 80 1C 00 00 00 00 | DF D3 |\n", color=lightgrey, width=380, colwidth=2,group=64bit_packets];
rsp_dbl_hd3[label= "RX:| UID | FC | LEN | DOUBLE_GHEFCDAB1 | DOUBLE_GHEFCDAB2 | CRC |\n ", color=lightyellow, width=380, colwidth=2, shape = roundedbox, group=64bit_packets];
rsp_dbl_frm3[label="RX:| 01 | 03 | 10 | 40 C8 1C 80 00 00 00 00 | 40 C8 1C 80 00 00 00 00 | B1 9C |\n", color=lightgrey, width=380, colwidth=2,group=64bit_packets];
rsp_dbl_hd4[label= "RX:| UID | FC | LEN | DOUBLE_BADCFEHG1 | DOUBLE_BADCFEHG2 | CRC |\n ", color=lightyellow, width=380, colwidth=2, shape = roundedbox, group=64bit_packets];
rsp_dbl_frm4[label="RX:| 01 | 03 | 10 | 00 00 00 00 80 1C C8 40 | 00 00 00 00 80 1C C8 40 | 86 94 |\n", color=lightgrey, width=380, colwidth=2,group=64bit_packets];
}