SAP连接电脑串口读数(电子称，磅等数据读取)

这是几年前做的了，一直都不想分享出来，后来想想为了能够给大家点想法，献出来了。。。

这是一个电脑读称的方法，一般用COMM口连接的电子设备都可参考。

如果是对串口参数不确定的，可以网上找个串口测试工具，轻松测出串口参数

 

网上搜索MSCOMM32.OCX

1.将上面的MSCOMM32.OCX保存到系统目录下C:\Windows\SysWOW64\MSCOMM32.OCX

然后注册：REGSVR32 C:\Windows\SysWOW64\MSCOMM32.OCX

 

2．修改注册表：

REGEDIT

在HKEY_CLASSES_ROOT\Licenses下建一项：

4250E830-6AC2-11cf-8ADB-00AA00C00905

修改数值数据：kjljvjjjoquqmjjjvpqqkqmqykypoqjquoun

重新启动电脑，这样COMM组件就能使用了

以上是在PC上配置的数据。

 

登陆GUI

T-code: SOLE

新建条目：

OLE 应用程序         MSCOMMLIB.MSCOMM.1

版本号

类标识               {648A5600-2C6E-101B-82B6-000000000014}

CLSID 库类型

OLE 对象名

类型信息键值

包含程序

语言

检查权限

文本

 

FUNCTION z_bc_get_balance.*"----------------------------------------------------------------------*"*"本地接口：*"  IMPORTING*"     REFERENCE(MODE) TYPE  I DEFAULT 0*"     REFERENCE(COMMPORT) TYPE  I DEFAULT 1*"     VALUE(SETTINGS) TYPE  C DEFAULT '1200,N,8,1'*"     REFERENCE(I_INPUT) TYPE  C OPTIONAL*"  EXPORTING*"     REFERENCE(E_OUTPUT) TYPE  C*"  EXCEPTIONS*"      NO_CREATE_OBJECT*"----------------------------------------------------------------------  TYPE-POOLS:sabc.  INCLUDE ole2incl.  DATA pos TYPE i.  CLEAR: pos,balance,value,e_output.  PERFORM prm_get_settings CHANGING settings.*  WAIT UP TO 3 SECONDS.  PERFORM prm_init.  PERFORM prm_open_port USING commport settings.  IF mode = 0."读取串口数据    PERFORM prm_read_port CHANGING e_output.  ELSEIF mode = 1."写串口数据    PERFORM prm_write_port USING i_input CHANGING e_output.  ENDIF.  PERFORM prm_final.  SEARCH balance FOR '+'.  IF sy-subrc = 0.    pos = sy-fdpos.    SHIFT balance BY ( pos + 1 ) PLACES.  ENDIF.  SEARCH balance FOR 'g'.  IF sy-subrc = 0.    pos = sy-fdpos.    balance = balance+0(pos).    CONDENSE balance NO-GAPS.    e_output = balance.  ENDIF.  COMMIT WORKENDFUNCTION.此块为配置接口类型模块(自建表用IP地址来配置相应的comm口参数)*****************************************************************************FORM prm_get_settings  CHANGING p_settings.  DATA addr TYPE ni_nodeaddr.  CLEAR addr.  CALL FUNCTION 'TH_USER_INFO'    IMPORTING      addrstr = addr.  SELECT SINGLE setting INTO p_settings FROM zbctaddr WHERE addr = addr.  IF sy-subrc = 0.    CLEAR addr.  ENDIF.ENDFORM.                    " PRM_GET_SETTINGS初始化接口对象******************************************************************************FORM prm_init .  DATA:    wa_repid LIKE sy-repid.  CLEAR wa_repid.  wa_repid = sy-repid.  CALL FUNCTION 'AUTHORITY_CHECK_OLE'    EXPORTING      program          = wa_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.  CREATE OBJECT o_obj 'MSCOMMLib.MSComm.1'.  IF sy-subrc <> 0.    RAISE no_create_object.  ENDIF.ENDFORM.                    " PRM_INIT接口打开***************************************************************************FORM prm_open_port  USING commport                           settings.  SET PROPERTY OF o_obj 'CommPort' = commport.  SET PROPERTY OF o_obj 'Settings' = settings.  SET PROPERTY OF o_obj 'InputLen' = 0.  SET PROPERTY OF o_obj 'PortOpen' = 1.ENDFORM.                    " PRM_OPEN_PORT读取接口数据：因为接口有缓存所以每次读取时都是去掉前面20次的数据而且每次读取的数据都是不完整的，所以需要将多次读取的数据连接起来，然后截取****************************************************************************FORM prm_read_port  CHANGING e_output.  DATA:    wa_buffer TYPE i,    inde      TYPE i.  DO 70 TIMES.     inde = inde + 1.    GET PROPERTY OF o_obj 'InBufferCount' = wa_buffer.    IF wa_buffer > 0.      GET PROPERTY OF o_obj 'Input' = e_output.      IF inde < 20.        ELSE.          CONCATENATE balance e_output INTO balance.      ENDIF.    ENDIF.  ENDDO.  CLEAR:wa_buffer,inde.ENDFORM.                    " PRM_READ_PORT往串口写数据，因为没有需求所以没做测试*********************************************************************FORM prm_write_port  USING    i_input                     CHANGING e_output.  DATA:    wa_buffer TYPE i.  SET PROPERTY OF o_obj 'Output' = i_input.  DO 40 TIMES.    GET PROPERTY OF o_obj 'InBufferCount' = wa_buffer.    IF wa_buffer > 0.      GET PROPERTY OF o_obj 'Input' = e_output.      EXIT.    ENDIF.  ENDDO.ENDFORM.                    " PRM_WRITE_PORT读数结束，关闭串口，释放对象，清空变量************************************************************************FORM prm_final .  SET PROPERTY OF o_obj 'PortOpen' = 0.  FREE OBJECT o_obj.  CLEAR o_obj.  COMMIT WORK.ENDFORM.                    " PRM_FINAL