最近SAP系统需要与道闸设备集成,通过串口通讯模式控制道闸栏杆升降,在此将开发过程中的思路及问题点做个备注。

一.相关设备

 道闸设备型号:富士智能FJC-D618  

 串口模块:康耐德 C2000-A1-PXD0020-BX1  

 转换器:DTECH DT-9020 RS-232<=>RS485

二.设备集成方式:调用系统组件MSComm32.OCX 

 64位文件路径:C:\Windows\SysWOW64\MSCOMM32.OCX 

 若找不到MSCOMM32.OCX组件,可以网上下载。

三.组件MSComm32.OCX 相关属性说明

 路径:VB-串口通信详解

四.SAP与道闸设备集成操作步骤

 1.控件注册

  a.将MSComm32.OCX文件放置在 C:\Windows\SysWOW64 路径下(32位操作系统放在 C:\Windows\System32 )

  b.控件注册:管理员权限运行CMD->Regsvr32  C:\Windows\SysWOW64\MSCOMM32.OCX 

  c.修改注册表(这一步感觉可有可无):

    c1.运行CMD->Regedit

    c2.在HKEY_CLASSES_ROOT\Licenses下新建项:4250E830-6AC2-11cf-8ADB-00AA00C00905  修改数值数据:kjljvjjjoquqmjjjvpqqkqmqykypoqjquoun

  d.重启电脑,控件启用

 2.SAP系统应用程序维护

  a.查找CLSID:运行CMD->Regedit,搜索“MSCOMMLib.MSComm.1”,获取CLSID:{648A5600-2C6E-101B-82B6-000000000014}

  b.登录GUI,T-CODE:SOLE  修改-新条目

OLE 应用程序: MSCOMMLIB.MSCOMM.1
版本号:
CLSID:             {648A5600-2C6E-101B-82B6-000000000014}
CLSID 库类型:
OLE 对象名:
类型信息代码:
包含程序:
语言:
检查权限:
文本:

 3.SAP直接调用MSCOMM32.OCX控件(16进制多条记录无法发送下位机

*&---------------------------------------------------------------------*
*& Report  ZRICO_MSCOMM
*&
*&---------------------------------------------------------------------*
*&
*&
*&---------------------------------------------------------------------*
report zrico_mscomm.
data:
  lv_cur    type string,
  lv_rst    type string,
  lv_buffer type i.
data:
  lo_dz     type ole2_object.

selection-screen begin of block block1 with frame title text-001.
  parameters:
    p_port  type char30 default '1',
    p_sett  type char30 default '9600,n,8,1',
    p_inpt  type char30 default '0',
    p_open  type char30 default '1',
    p_intxt type string default '01 01 00 64 00 01 BC 15',
    p_ottxt type string.
selection-screen end of block block1.

start-of-selection.

  call function 'AUTHORITY_CHECK_OLE'
    exporting
      program          = sy-repid
      activity         = sabc_act_call
      application      = 'MSCOMMLIB.MSCOMM.1'
    exceptions
      no_authority     = 1
      activity_unknown = 2
      others           = 3.
  if sy-subrc <> 0.
    message id sy-msgid type sy-msgty number sy-msgno
            with sy-msgv1 sy-msgv2 sy-msgv3 sy-msgv4.
  endif.

  "创建对象
  create object lo_dz 'MSCOMMLib.MSComm.1'.
  if sy-subrc <> 0.
    raise no_create_object.
  endif.
  "初始参数
  set property of lo_dz 'CommPort'      = p_port.
  set property of lo_dz 'Settings'      = p_sett.
  set property of lo_dz 'InputMode'     = 1.
  set property of lo_dz 'InputLen'      = p_inpt.
  set property of lo_dz 'InBufferSize'  = 1024.
  set property of lo_dz 'OutBufferSize' = 512.

  "打开串口
  set property of lo_dz 'PortOpen' = p_open.

  "发送数据-多条记录-16进制
  "此处不知如何处理:需将16进制转换为字符数组Byte[]方式发送至下位机
  "若将16进制转换为10进制内表传值则直接Dump,若直接传输16进制字符串则无返回值
  set property of lo_dz 'Output' = p_intxt.

  "接收数据
  do 40 times.
    get property of lo_dz 'InBufferCount' = lv_buffer.
    if lv_buffer > 0.
      get property of lo_dz 'Input' = lv_rst.
      exit.
    endif.
  enddo.

  "关闭串口
  set property of lo_dz 'PortOpen' = 0.

  "释放
  free object lo_dz.

  3.1因发送16进制数据为多条记录,控件MSCOMM发送数据类型为Byte[],ABAP无法将16进制数转换为字节数组,若转换为内表传输则直接Dump,最终无解。

  3.2ABAP无法一次发送多条记录至下位机,则改用其他方式处理(详见4):

   a.用VB创建DLL文件,引用MSCOMM32.OCX控件并创建多个类方法。

   b.系统注册DLL文件

   c.SAP调用DLL文件,并访问自定义方法类

 4.解决16进制多条记录发送问题

  4.1用VB创建DLL文件,封装MSCOMM32.OCX控件相关属性及自定义方法

   VB-创建类模块DLL文件

  4.2SAP调用自定义类文件 MSCommPrj.DLL

   a.注册文件MSCommPrj.DLL

    运行CMD->regsvr32 文件路径

   b.ABAP调用类文件 :16进制多条记录用"&"符号拼接为字符串

*&---------------------------------------------------------------------*
*& Report  ZRICO_MSCOMMPRJ
*&
*&---------------------------------------------------------------------*
*&
*&
*&---------------------------------------------------------------------*
report zrico_mscommprj.

data:
  gv_rst    type string.
data:
  go_mscomm type ole2_object.

selection-screen begin of block block1 with frame title text-001.
  parameters:
    p_port type char10 default '1',
    p_sett type char30 default '9600,n,8,1',
    p_mode type char10 default '0',
    p_time type char10 default '100',
    p_data type char200 default '01 01 00 64 00 01 BC 15 & 01 0F 00 64 00 01 01 FF 1F 1F & 01 01 00 64 00 01 BC 15 & 01 0F 00 64 00 01 01 00 5F 5F'.
selection-screen end of block block1.

start-of-selection.
  call function 'AUTHORITY_CHECK_OLE'
    exporting
      program          = sy-repid
      activity         = sabc_act_call
      application      = 'MSCommPrj.msCommCls'
    exceptions
      no_authority     = 1
      activity_unknown = 2
      others           = 3.
  if sy-subrc <> 0.
    message id sy-msgid type sy-msgty number sy-msgno
            with sy-msgv1 sy-msgv2 sy-msgv3 sy-msgv4.
  endif.

  "创建对象
  create object go_mscomm 'MSCommPrj.msCommCls'.
  if sy-subrc <> 0.
    raise no_create_object.
  endif.

  "初始化参数
  call method of go_mscomm 'frm_initial_parameters' = gv_rst
    exporting
      #1 = p_port
      #2 = p_sett
      #2 = p_mode .
  write:/10 gv_rst.

  "打开串口
  call method of go_mscomm 'frm_open_serialport' = gv_rst.
  write:/10 gv_rst.

  "发送数据
  call method of go_mscomm 'frm_send_data' = gv_rst
    exporting
      #1 = p_mode
      #2 = p_time
      #2 = p_data .
  write:/10 gv_rst.

  "接收数据
  call method of go_mscomm 'frm_receive_data' = gv_rst
    exporting
      #1 = p_mode.
  write:/10 gv_rst.

  "关闭串口
  call method of go_mscomm 'frm_close_serialport' = gv_rst.
  write:/10 gv_rst.

  free object go_mscomm.

 5.SAP测试DLL

 

 

 

posted on 2018-11-29 17:25  ricoo  阅读(1601)  评论(2编辑  收藏  举报