Mike van Doorn / SetupModbus

Software modbus, display, knoppen, bewegingssensor en mbed OS

Dependents:   testSoftware8_alles_display

setup.h@0:d603d31b42dc, 2018-06-07 (annotated)

Committer:
mikevd1
Date:
Thu Jun 07 14:28:24 2018 +0000
Revision:
0:d603d31b42dc
Child:
2:ca3d2395b6d3
CRC toevoeging, code overzichtelijker gemaakt ; ; fouten:; bit gaat nog niet op 0 met de juiste code;

Who changed what in which revision?

UserRevisionLine numberNew contents of line
mikevd1 0:d603d31b42dc 1 #ifndef SETUP_H
mikevd1 0:d603d31b42dc 2 #define SETUP_H
mikevd1 0:d603d31b42dc 3
mikevd1 0:d603d31b42dc 4 /*
mikevd1 0:d603d31b42dc 5 SimpleModbusSlave allows you to communicate
mikevd1 0:d603d31b42dc 6 to any slave using the Modbus RTU protocol.
mikevd1 0:d603d31b42dc 7
mikevd1 0:d603d31b42dc 8 The crc calculation is based on the work published
mikevd1 0:d603d31b42dc 9 by jpmzometa at
mikevd1 0:d603d31b42dc 10 http://sites.google.com/site/jpmzometa/arduino-mbrt
mikevd1 0:d603d31b42dc 11
mikevd1 0:d603d31b42dc 12 By Juan Bester : bester.juan@gmail.com
mikevd1 0:d603d31b42dc 13
mikevd1 0:d603d31b42dc 14 The functions implemented are functions 3 and 16.
mikevd1 0:d603d31b42dc 15 read holding registers and preset multiple registers
mikevd1 0:d603d31b42dc 16 of the Modbus RTU Protocol, to be used over the Arduino serial connection.
mikevd1 0:d603d31b42dc 17
mikevd1 0:d603d31b42dc 18 This implementation DOES NOT fully comply with the Modbus specifications.
mikevd1 0:d603d31b42dc 19
mikevd1 0:d603d31b42dc 20 Specifically the frame time out have not been implemented according
mikevd1 0:d603d31b42dc 21 to Modbus standards. The code does however combine the check for
mikevd1 0:d603d31b42dc 22 inter character time out and frame time out by incorporating a maximum
mikevd1 0:d603d31b42dc 23 time out allowable when reading from the message stream.
mikevd1 0:d603d31b42dc 24
mikevd1 0:d603d31b42dc 25 These library of functions are designed to enable a program send and
mikevd1 0:d603d31b42dc 26 receive data from a device that communicates using the Modbus protocol.
mikevd1 0:d603d31b42dc 27
mikevd1 0:d603d31b42dc 28 SimpleModbusSlave implements an unsigned int return value on a call to modbus_update().
mikevd1 0:d603d31b42dc 29 This value is the total error count since the slave started. It's useful for fault finding.
mikevd1 0:d603d31b42dc 30
mikevd1 0:d603d31b42dc 31 This code is for a Modbus slave implementing functions 3 and 16
mikevd1 0:d603d31b42dc 32 function 3: Reads the binary contents of holding registers (4X references)
mikevd1 0:d603d31b42dc 33 function 16: Presets values into a sequence of holding registers (4X references)
mikevd1 0:d603d31b42dc 34
mikevd1 0:d603d31b42dc 35 All the functions share the same register array.
mikevd1 0:d603d31b42dc 36
mikevd1 0:d603d31b42dc 37 Exception responses:
mikevd1 0:d603d31b42dc 38 1 ILLEGAL FUNCTION
mikevd1 0:d603d31b42dc 39 2 ILLEGAL DATA ADDRESS
mikevd1 0:d603d31b42dc 40 3 ILLEGAL DATA VALUE
mikevd1 0:d603d31b42dc 41
mikevd1 0:d603d31b42dc 42 Note:
mikevd1 0:d603d31b42dc 43 The Arduino serial ring buffer is 128 bytes or 64 registers.
mikevd1 0:d603d31b42dc 44 Most of the time you will connect the arduino to a master via serial
mikevd1 0:d603d31b42dc 45 using a MAX485 or similar.
mikevd1 0:d603d31b42dc 46
mikevd1 0:d603d31b42dc 47 In a function 3 request the master will attempt to read from your
mikevd1 0:d603d31b42dc 48 slave and since 5 bytes is already used for ID, FUNCTION, NO OF BYTES
mikevd1 0:d603d31b42dc 49 and two BYTES CRC the master can only request 122 bytes or 61 registers.
mikevd1 0:d603d31b42dc 50
mikevd1 0:d603d31b42dc 51 In a function 16 request the master will attempt to write to your
mikevd1 0:d603d31b42dc 52 slave and since a 9 bytes is already used for ID, FUNCTION, ADDRESS,
mikevd1 0:d603d31b42dc 53 NO OF REGISTERS, NO OF BYTES and two BYTES CRC the master can only write
mikevd1 0:d603d31b42dc 54 118 bytes or 59 registers.
mikevd1 0:d603d31b42dc 55
mikevd1 0:d603d31b42dc 56 Using the FTDI converter ic the maximum bytes you can send is limited
mikevd1 0:d603d31b42dc 57 to its internal buffer which is 60 bytes or 30 unsigned int registers.
mikevd1 0:d603d31b42dc 58
mikevd1 0:d603d31b42dc 59 Thus:
mikevd1 0:d603d31b42dc 60
mikevd1 0:d603d31b42dc 61 In a function 3 request the master will attempt to read from your
mikevd1 0:d603d31b42dc 62 slave and since 5 bytes is already used for ID, FUNCTION, NO OF BYTES
mikevd1 0:d603d31b42dc 63 and two BYTES CRC the master can only request 54 bytes or 27 registers.
mikevd1 0:d603d31b42dc 64
mikevd1 0:d603d31b42dc 65 In a function 16 request the master will attempt to write to your
mikevd1 0:d603d31b42dc 66 slave and since a 9 bytes is already used for ID, FUNCTION, ADDRESS,
mikevd1 0:d603d31b42dc 67 NO OF REGISTERS, NO OF BYTES and two BYTES CRC the master can only write
mikevd1 0:d603d31b42dc 68 50 bytes or 25 registers.
mikevd1 0:d603d31b42dc 69
mikevd1 0:d603d31b42dc 70 Since it is assumed that you will mostly use the Arduino to connect to a
mikevd1 0:d603d31b42dc 71 master without using a USB to Serial converter the internal buffer is set
mikevd1 0:d603d31b42dc 72 the same as the Arduino Serial ring buffer which is 128 bytes.
mikevd1 0:d603d31b42dc 73
mikevd1 0:d603d31b42dc 74 The functions included here have been derived from the
mikevd1 0:d603d31b42dc 75 Modbus Specifications and Implementation Guides
mikevd1 0:d603d31b42dc 76
mikevd1 0:d603d31b42dc 77 http://www.modbus.org/docs/Modbus_over_serial_line_V1_02.pdf
mikevd1 0:d603d31b42dc 78 http://www.modbus.org/docs/Modbus_Application_Protocol_V1_1b.pdf
mikevd1 0:d603d31b42dc 79 http://www.modbus.org/docs/PI_MBUS_300.pdf
mikevd1 0:d603d31b42dc 80 */
mikevd1 0:d603d31b42dc 81
mikevd1 0:d603d31b42dc 82 // function definitions
mikevd1 0:d603d31b42dc 83
mikevd1 0:d603d31b42dc 84
mikevd1 0:d603d31b42dc 85 const uint16_t crc_tab_8005_reflected[] =
mikevd1 0:d603d31b42dc 86 {
mikevd1 0:d603d31b42dc 87 0x0000, 0xC0C1, 0xC181, 0x0140, 0xC301, 0x03C0, 0x0280, 0xC241,
mikevd1 0:d603d31b42dc 88 0xC601, 0x06C0, 0x0780, 0xC741, 0x0500, 0xC5C1, 0xC481, 0x0440,
mikevd1 0:d603d31b42dc 89 0xCC01, 0x0CC0, 0x0D80, 0xCD41, 0x0F00, 0xCFC1, 0xCE81, 0x0E40,
mikevd1 0:d603d31b42dc 90 0x0A00, 0xCAC1, 0xCB81, 0x0B40, 0xC901, 0x09C0, 0x0880, 0xC841,
mikevd1 0:d603d31b42dc 91 0xD801, 0x18C0, 0x1980, 0xD941, 0x1B00, 0xDBC1, 0xDA81, 0x1A40,
mikevd1 0:d603d31b42dc 92 0x1E00, 0xDEC1, 0xDF81, 0x1F40, 0xDD01, 0x1DC0, 0x1C80, 0xDC41,
mikevd1 0:d603d31b42dc 93 0x1400, 0xD4C1, 0xD581, 0x1540, 0xD701, 0x17C0, 0x1680, 0xD641,
mikevd1 0:d603d31b42dc 94 0xD201, 0x12C0, 0x1380, 0xD341, 0x1100, 0xD1C1, 0xD081, 0x1040,
mikevd1 0:d603d31b42dc 95 0xF001, 0x30C0, 0x3180, 0xF141, 0x3300, 0xF3C1, 0xF281, 0x3240,
mikevd1 0:d603d31b42dc 96 0x3600, 0xF6C1, 0xF781, 0x3740, 0xF501, 0x35C0, 0x3480, 0xF441,
mikevd1 0:d603d31b42dc 97 0x3C00, 0xFCC1, 0xFD81, 0x3D40, 0xFF01, 0x3FC0, 0x3E80, 0xFE41,
mikevd1 0:d603d31b42dc 98 0xFA01, 0x3AC0, 0x3B80, 0xFB41, 0x3900, 0xF9C1, 0xF881, 0x3840,
mikevd1 0:d603d31b42dc 99 0x2800, 0xE8C1, 0xE981, 0x2940, 0xEB01, 0x2BC0, 0x2A80, 0xEA41,
mikevd1 0:d603d31b42dc 100 0xEE01, 0x2EC0, 0x2F80, 0xEF41, 0x2D00, 0xEDC1, 0xEC81, 0x2C40,
mikevd1 0:d603d31b42dc 101 0xE401, 0x24C0, 0x2580, 0xE541, 0x2700, 0xE7C1, 0xE681, 0x2640,
mikevd1 0:d603d31b42dc 102 0x2200, 0xE2C1, 0xE381, 0x2340, 0xE101, 0x21C0, 0x2080, 0xE041,
mikevd1 0:d603d31b42dc 103
mikevd1 0:d603d31b42dc 104 0xA001, 0x60C0, 0x6180, 0xA141, 0x6300, 0xA3C1, 0xA281, 0x6240,
mikevd1 0:d603d31b42dc 105 0x6600, 0xA6C1, 0xA781, 0x6740, 0xA501, 0x65C0, 0x6480, 0xA441,
mikevd1 0:d603d31b42dc 106 0x6C00, 0xACC1, 0xAD81, 0x6D40, 0xAF01, 0x6FC0, 0x6E80, 0xAE41,
mikevd1 0:d603d31b42dc 107 0xAA01, 0x6AC0, 0x6B80, 0xAB41, 0x6900, 0xA9C1, 0xA881, 0x6840,
mikevd1 0:d603d31b42dc 108 0x7800, 0xB8C1, 0xB981, 0x7940, 0xBB01, 0x7BC0, 0x7A80, 0xBA41,
mikevd1 0:d603d31b42dc 109 0xBE01, 0x7EC0, 0x7F80, 0xBF41, 0x7D00, 0xBDC1, 0xBC81, 0x7C40,
mikevd1 0:d603d31b42dc 110 0xB401, 0x74C0, 0x7580, 0xB541, 0x7700, 0xB7C1, 0xB681, 0x7640,
mikevd1 0:d603d31b42dc 111 0x7200, 0xB2C1, 0xB381, 0x7340, 0xB101, 0x71C0, 0x7080, 0xB041,
mikevd1 0:d603d31b42dc 112 0x5000, 0x90C1, 0x9181, 0x5140, 0x9301, 0x53C0, 0x5280, 0x9241,
mikevd1 0:d603d31b42dc 113 0x9601, 0x56C0, 0x5780, 0x9741, 0x5500, 0x95C1, 0x9481, 0x5440,
mikevd1 0:d603d31b42dc 114 0x9C01, 0x5CC0, 0x5D80, 0x9D41, 0x5F00, 0x9FC1, 0x9E81, 0x5E40,
mikevd1 0:d603d31b42dc 115 0x5A00, 0x9AC1, 0x9B81, 0x5B40, 0x9901, 0x59C0, 0x5880, 0x9841,
mikevd1 0:d603d31b42dc 116 0x8801, 0x48C0, 0x4980, 0x8941, 0x4B00, 0x8BC1, 0x8A81, 0x4A40,
mikevd1 0:d603d31b42dc 117 0x4E00, 0x8EC1, 0x8F81, 0x4F40, 0x8D01, 0x4DC0, 0x4C80, 0x8C41,
mikevd1 0:d603d31b42dc 118 0x4400, 0x84C1, 0x8581, 0x4540, 0x8701, 0x47C0, 0x4680, 0x8641,
mikevd1 0:d603d31b42dc 119 0x8201, 0x42C0, 0x4380, 0x8341, 0x4100, 0x81C1, 0x8081, 0x4040
mikevd1 0:d603d31b42dc 120 };
mikevd1 0:d603d31b42dc 121
mikevd1 0:d603d31b42dc 122 void modbus_configure(long baud, int _slaveID );
mikevd1 0:d603d31b42dc 123 int modbus_read(void);
mikevd1 0:d603d31b42dc 124 int modbus_read2(void);
mikevd1 0:d603d31b42dc 125 //unsigned short calculate_crc16_Modbus( uint8_t *checkArray , int dataLengt );
mikevd1 0:d603d31b42dc 126 //unsigned long update_crc16_reflected(const long *table, unsigned long crc, unsigned int c );
mikevd1 0:d603d31b42dc 127 //unsigned long update_crc16_A001( unsigned long crc, unsigned int c );
mikevd1 0:d603d31b42dc 128 int modbus_sendData(void);
mikevd1 0:d603d31b42dc 129
mikevd1 0:d603d31b42dc 130 uint16_t update_crc16_reflected(const uint16_t *table, uint16_t crc, unsigned int c );
mikevd1 0:d603d31b42dc 131 uint16_t update_crc16_A001( long crc, unsigned int c );
mikevd1 0:d603d31b42dc 132 long calculate_crc16_Modbus(unsigned int *p, unsigned int length);
mikevd1 0:d603d31b42dc 133
mikevd1 0:d603d31b42dc 134
mikevd1 0:d603d31b42dc 135
mikevd1 0:d603d31b42dc 136 #endif