func.~pas

自已用DELPHI编写的MODBUS测试软件及源代码

unit func;

interface

uses
   filedefine, SysUtils, crcp;


const
  CRCHi: array [0..255] of byte =
(
 $00, $C1, $81, $40, $01, $C0, $80, $41, $01, $C0, $80, $41, $00,
 $C1, $81, $40, $01, $C0, $80, $41, $00, $C1, $81, $40, $00, $C1,
 $81, $40, $01, $C0, $80, $41, $01, $C0, $80, $41, $00, $C1, $81,
 $40, $00, $C1, $81, $40, $01, $C0, $80, $41, $00, $C1, $81, $40,
 $01, $C0, $80, $41, $01, $C0, $80, $41, $00, $C1, $81, $40, $01,
 $C0, $80, $41, $00, $C1, $81, $40, $00, $C1, $81, $40, $01, $C0,
 $80, $41, $00, $C1, $81, $40, $01, $C0, $80, $41, $01, $C0, $80,
 $41, $00, $C1, $81, $40, $00, $C1, $81, $40, $01, $C0, $80, $41,
 $01, $C0, $80, $41, $00, $C1, $81, $40, $01, $C0, $80, $41, $00,
 $C1, $81, $40, $00, $C1, $81, $40, $01, $C0, $80, $41, $01, $C0,
 $80, $41, $00, $C1, $81, $40, $00, $C1, $81, $40, $01, $C0, $80,
 $41, $00, $C1, $81, $40, $01, $C0, $80, $41, $01, $C0, $80, $41,
 $00, $C1, $81, $40, $00, $C1, $81, $40, $01, $C0, $80, $41, $01,
 $C0, $80, $41, $00, $C1, $81, $40, $01, $C0, $80, $41, $00, $C1,
 $81, $40, $00, $C1, $81, $40, $01, $C0, $80, $41, $00, $C1, $81,
 $40, $01, $C0, $80, $41, $01, $C0, $80, $41, $00, $C1, $81, $40,
 $01, $C0, $80, $41, $00, $C1, $81, $40, $00, $C1, $81, $40, $01,
 $C0, $80, $41, $01, $C0, $80, $41, $00, $C1, $81, $40, $00, $C1,
 $81, $40, $01, $C0, $80, $41, $00, $C1, $81, $40, $01, $C0, $80,
 $41, $01, $C0, $80, $41, $00, $C1, $81, $40
) ;

 CRCLo: array [0..255] of  byte =
(
 $00, $C0, $C1, $01, $C3, $03, $02, $C2, $C6, $06, $07, $C7, $05,
 $C5, $C4, $04, $CC, $0C, $0D, $CD, $0F, $CF, $CE, $0E, $0A, $CA,
 $CB, $0B, $C9, $09, $08, $C8, $D8, $18, $19, $D9, $1B, $DB, $DA,
 $1A, $1E, $DE, $DF, $1F, $DD, $1D, $1C, $DC, $14, $D4, $D5, $15,
 $D7, $17, $16, $D6, $D2, $12, $13, $D3, $11, $D1, $D0, $10, $F0,
 $30, $31, $F1, $33, $F3, $F2, $32, $36, $F6, $F7, $37, $F5, $35,
 $34, $F4, $3C, $FC, $FD, $3D, $FF, $3F, $3E, $FE, $FA, $3A, $3B,
 $FB, $39, $F9, $F8, $38, $28, $E8, $E9, $29, $EB, $2B, $2A, $EA,
 $EE, $2E, $2F, $EF, $2D, $ED, $EC, $2C, $E4, $24, $25, $E5, $27,
 $E7, $E6, $26, $22, $E2, $E3, $23, $E1, $21, $20, $E0, $A0, $60,
 $61, $A1, $63, $A3, $A2, $62, $66, $A6, $A7, $67, $A5, $65, $64,
 $A4, $6C, $AC, $AD, $6D, $AF, $6F, $6E, $AE, $AA, $6A, $6B, $AB,
 $69, $A9, $A8, $68, $78, $B8, $B9, $79, $BB, $7B, $7A, $BA, $BE,
 $7E, $7F, $BF, $7D, $BD, $BC, $7C, $B4, $74, $75, $B5, $77, $B7,
 $B6, $76, $72, $B2, $B3, $73, $B1, $71, $70, $B0, $50, $90, $91,
 $51, $93, $53, $52, $92, $96, $56, $57, $97, $55, $95, $94, $54,
 $9C, $5C, $5D, $9D, $5F, $9F, $9E, $5E, $5A, $9A, $9B, $5B, $99,
 $59, $58, $98, $88, $48, $49, $89, $4B, $8B, $8A, $4A, $4E, $8E,
 $8F, $4F, $8D, $4D, $4C, $8C, $44, $84, $85, $45, $87, $47, $46,
 $86, $82, $42, $43, $83, $41, $81, $80, $40
);


procedure app_analys(var econfile: teconfile);
function  StrToHex(Str1: String; i: Integer): Integer;// 十六进制字符串转为有符号整数
function  StrToHex1(Str1: String; i: Integer): Cardinal;
procedure  AppendBlank(var Str1: String; i: Integer);
function  framecheck: integer;
procedure asclltoapp(var tempstring: string; var econfile: Teconfile);
function Lrc(const Temp: String): String;
function crc(var dataaddress: byte; datalength: byte): word;

implementation
uses econv230p;

function crc(var dataaddress :byte; datalength: byte): word;
var
  hi: byte;
  lo: byte;
  i: byte;
  index: byte;
  datadd: pbytearray;
begin
  hi := $FF;
  lo := $FF;
  datadd := @dataaddress;
  i := 0;
  while (datalength > 0) do
  begin
    index := hi xor datadd^[i];
    i := i + 1;
    hi := lo xor crchi[index];
    lo := crclo[index];
   datalength := datalength - 1;
  end;
  crc := hi shl 8 or lo;
end;

function StrToHex(Str1: String; i: Integer): Integer;// 十六进制字符串转为有符号整数
Var
  firstInt: smallInt;
  SecondInt: Integer;
begin
  firstInt := 0;
  for SecondInt:=1 To i do
     begin
     if Str1='' then Str1 := '0000';
     case Str1[SecondInt] of
      '0'..'9': firstInt := firstInt*16 + Ord(Str1[SecondInt]) - 48;
      'a'..'f': firstInt := firstInt*16 + Ord(Str1[SecondInt]) - 87;
      'A'..'F': firstInt := firstInt*16 + Ord(Str1[SecondInt]) - 55;
      else firstInt := 0;
      end;
 //     if firstInt>32767 then  firstInt:=not firstInt +1;
    end;
    StrToHex := firstInt;
end;

function StrToHex1(Str1: String; i: Integer): Cardinal;
Var
  firstInt: Cardinal;
  SecondInt: Integer;
begin
  firstInt := 0;
  for SecondInt:=1 To i do
     begin
//     form1.caption:=str1;
     case Str1[SecondInt] of
      '0'..'9': firstInt := firstInt*16 + Ord(Str1[SecondInt]) - 48;
      'a'..'f': firstInt := firstInt*16 + Ord(Str1[SecondInt]) - 87;
      'A'..'F': firstInt := firstInt*16 + Ord(Str1[SecondInt]) - 55;
      else firstInt := 0;
      end;
 //     if firstInt>32767 then  firstInt:=not firstInt +1;
    end;
    StrToHex1 := firstInt;
end;

{function settime:cardinal;
begin
  settime:=Trunc(time*MsecsPerDay)
end; }

procedure  AppendBlank(var Str1: String; i: Integer);
var
  l, m: integer;
begin
  l := i- length(Str1);
  for m:=1 to l do
  begin
    Str1 := Str1 + ' ';
  end;
end;

procedure app_analys(var econfile: teconfile);
var
  a, k: byte;
  i:  byte;
  j:  word;
  Hour, Minute, Second, mSecond: word; // SOE 时，分，秒，毫秒
  ActDot, ActType: String; // S0E事件记录动作点，动作类型，动作时间
  f: String;
  TimeValue: Double;
begin
  with econfile do
  begin
    case econfile.analysbuffer[2] of
           1:
             begin
               for j:=0 to analysbuffer[3]-1 do
               begin
                 a := 1;
                 for i:=1 to 8 do
                 begin
                   if (j*8 + i)>readcoilcount then break;
                   k := (analysbuffer[4 + j] and a); 
                   coilstatearray[beginaddress + j*8 + i].value := (k>0);
                   if (i<>8) then a := a * 2;
                 end;
               end;
               displaycoilstate(econfile, mainform.coilstategrid);
             end;

           2:
             begin
               for j:=0 to analysbuffer[3]-1 do
               begin
                 a := 1;
                 for i:=1 to 8 do
                 begin
                   if (j*8 + i)>readinputcount then break;
                   k := (analysbuffer[4 + j] and a);
                   econfile.inputstatearray[beginaddress + j*8 + i].value := (k>0);
                   if (i<>8) then a := a * 2;
                 end;
               end;
               displayinputstate(econfile, mainform.inputstategrid);
             end;


           3:
             begin
               for i:=1 to (analysbuffer[3] div 2) do
               begin
                 holdregisterarray[beginaddress + i].value :=
                   inttostr(analysbuffer[4+(i-1)*2]*256 + analysbuffer[5+(i-1)*2]);
               end;

               {for j:=1 to analysbuffer[3] do
               begin
                a:=1;
                for i:=1 to 8 do
                  begin
                    k:=analysbuffer[4+j-1]and a;