func.pas

Delphi编写的ModBus协议上位机软件

                    a:=a*2;
                  end;
               end;}


               econv230p.MainForm.Caption := companyname+'----'+getfilename+'           '
                 +timetostr((strtoint64(econfile.holdregisterarray[2].value)*65536+strtoint64(econfile.holdregisterarray[1].value))/MsecsPerDay);

               displayholdregister(econfile, mainform.holdregistergrid);
               displayprotect(econfile, mainform.protectgrid);
               displaypower(econfile, mainform.powergrid);

             end;

           4:
             begin
               for i:=1 to (analysbuffer[3]div 2) do
               begin
                 j := analysbuffer[4+(i-1)*2]*256 + analysbuffer[5+(i-1)*2];
                 if j<=32767 then inputregisterarray[beginaddress+i].value := inttostr(j)
                 else inputregisterarray[beginaddress+i].value := inttostr(-1 *( 65536-j ));
               end;
               displayinputregister(econfile, mainform.inputregistergrid);
               if econfile.setxiangliangtotal>0 then
               begin
                    displayxiangliang(econfile, mainform.xianglianggrid);
                    drawxiangliang;
               end;
               if econfile.setxiebototal>0 then displayxiebo(econfile, mainform.xiebogrid);
             end;

           24:
              begin
                {case analysbuffer[8] of
                  0: ActDot := '第1点';
                  1: ActDot := '第2点';
                  2: ActDot := '第3点';
                  3: ActDot := '第4点';
                  4: ActDot := '第5点';
                  5: ActDot := '第6点';
                  6: ActDot := '第7点';
                  7: ActDot := '第8点';
                end;}
                ActDot := '第'+inttostr(analysbuffer[8])+'点';

                case (analysbuffer[9]*256 + analysbuffer[10]) of
                  0: ActType := '1->0';
                  1: ActType := '0->1';
                  16: ActType := '启动电流保护动作预告';
                  17: ActType := '启动电流保护动作';
                  18: ActType := '启动电流保护撤消';
                  32: ActType := '超载保护动作预告';
                  33: ActType := '超载保护动作';
                  34: ActType := '超载保护撤消';
                  48: ActType := '欠压保护动作预告';
                  49: ActType := '欠压保护动作';
                  50: ActType := '欠压保护撤消';
                  64: ActType := '过压保护动作预告';
                  65: ActType := '过压保护动作';
                  66: ActType := '过压保护撤消';
                  80: ActType := '零序电流保护动作预告';
                  81: ActType := '零序电流保护动作';
                  82: ActType := '零序电流保护撤消';
                  96: ActType := '负序电流保护动作预告';
                  97: ActType := '负序电流保护动作';
                  98: ActType := '负序电流保护撤消';
                  112: ActType := '直流1保护动作预告';
                  113: ActType := '直流1保护动作';
                  114: ActType := '直流1保护撤消';
                  128: ActType := '直流2保护动作预告';
                  129: ActType := '直流2保护动作';
                  130: ActType := '直流2保护撤消';
                  144: ActType := '空载告警动作预告';
                  145: ActType := '空载告警动作';
                  146: ActType := '空载告警撤消';
                  160: ActType := '零序电压保护动作预告';
                  161: ActType := '零序电压保护动作';
                  162: ActType := '零序电压保护撤消';
                  $B0: ActType := '直流1保护动作预告';
                  $B1: ActType := '直流1保护动作';
                  $B2: ActType := '直流1保护撤消';
                  $C0: ActType := '直流2保护动作预告';
                  $C1: ActType := '直流2保护动作';
                  $C2: ActType := '直流2保护撤消';
                  $D0: ActType := '直流3保护动作预告';
                  $D1: ActType := '直流3保护动作';
                  $D2: ActType := '直流3保护撤消';
                  $E0: ActType := '直流4保护动作预告';
                  $E1: ActType := '直流4保护动作';
                  $E2: ActType := '直流4保护撤消';
                  $F0: ActType := '速断1段保护动作预告';
                  $F1: ActType := '速断1段保护动作';
                  $F2: ActType := '速断1段保护撤消';
                  $F3: ActType := '速断2段保护动作预告';
                  $F4: ActType := '速断2段保护动作';
                  $F5: ActType := '速断2段保护撤消';
                  $F6: ActType := '速断3段保护动作预告';
                  $F7: ActType := '速断3段保护动作';
                  $F8: ActType := '速断3段保护撤消';
                  $F9: ActType := '反时限速断保护动作预告';
                  $FA: ActType := '反时限速断保护动作';
                  $FB: ActType := '反时限速断保护撤消';
                  $FC: ActType := '温度保护动作预告';
                  $FD: ActType := '温度保护动作';
                  $FE: ActType := '温度保护撤消';

                end;

                // TimeValue := analysbuffer[11]*256/MsecsPerDay*65536 + analysbuffer[12]*65536/MsecsPerDay
                //      + analysbuffer[13]*256/MsecsPerDay + analysbuffer[14]/MsecsPerDay;
                TimeValue := analysbuffer[11]*256*65536 + analysbuffer[12]*65536
                       + analysbuffer[13]*256 + analysbuffer[14];
                TimeValue := TimeValue/MsecsPerDay;
                DecodeTime(TimeValue, Hour, Minute, Second, MSecond);
                //f := ActDot + ' ' + ActType + ' ' + inttostr(Hour) + ':'
                //  + inttostr(Minute) + ':' + inttostr(Second) + '.' + inttostr(MSecond);

                f := ActDot + ' ' + ActType + ' ' + inttostr(Hour) + ':'
                  + inttostr(Minute) + ':' + format( '%2.3f', [Second*1.0+MSecond/1000.0]);
                mainform.eventmemo.Lines.Insert(0, f);//插入SOE事件
                if mainform.eventmemo.Lines.count>20 then mainform.eventmemo.Lines.clear;
              end

      else
      //for i:=1 to econfile.analysbuffer[3]+3 do econfile.analysbuffer[i] :=0
      for j:=1 to 1024 do econfile.analysbuffer[j] :=0
    end;//case
    for j:=1 to 1024 do econfile.analysbuffer[j] := 0;
  end;//with
end;

procedure asclltoapp(var tempstring: string; var econfile: Teconfile);
var i: integer;
begin
  delete(TempString, 1, 1);
  delete(TempString, length(TempString)-1, 2);

  for I:=1 to length(TempString)div 2 do
  begin
    econfile.analysbuffer[i] := strtohex(copy(TempString, i*2-1, 2), 2);
  end;
  TempString := '';
end;

function framecheck:integer;
var i, j: word;
begin
  with econfile do
  begin
  if comm.mode='RTU' then
  begin
    case revbuff[1] of
         $81:begin
               framecheck := 0;
               exit;
             end;
          5,6:begin
                I := crc(revbuff[0], 6);
                j := revbuff[6]*256 + revbuff[7];
                if i<>j then framecheck := -1
                else framecheck := 0;
              end;
           24:begin
                I := crc(revbuff[0], 14);
                j := revbuff[14]*256 + revbuff[15];
                if i<>j then framecheck := -1
                else framecheck := 0;
              end;
           1, 2, 3, 4:
           begin
             I := crc(revbuff[0], revbuff[2]+3);
             j := revbuff[revbuff[2]+3]*256 + revbuff[revbuff[2]+4];
             if i<>j then framecheck := -1
                else framecheck := 0;
           end;
     else
       framecheck := 0;
     end;

  end
  else
    begin
      framecheck := 0;
    end;
  end;
end;

function Lrc(const Temp: String): String;
var
  a, b, c: Cardinal;
  t: String;
begin

  b := Length(Temp) div 2;
  c := 0;
  for a:=0 To b-1 do
    begin
      t := copy(Temp, (2*a + 1), 2);
      c := c + StrTohex1(t, 2);
    end;
  t := IntTohex((not c) + 1, 2);
  b := Length(t) - 1;
  Lrc := copy(t, b, 2);
end;

end.