To use RFC HU_GET_RFC_DATA from your own ABAP’s, there are two steps.
- If you have defined packing station profiles in customizing (transaction HUPAST_C), you can use the function module read_packstation to determine the profile based on the hostname of the user’s PC.
- Use the RFC call HU_GET_RFC_DATA in conjunction with ERP-Scale to determine the current weight from the serial device
Note: You can use the packing station profile with ERP-Scale even if you have not activated handling unit management in SAP.
Determine Packing station profile based on hostname of user’s PC
FORM read_packstation.
statics sf_terminal(20).
DATA: lt_profile TYPE TABLE OF hupast_t.
* Get the Hostname from the PC.
CALL FUNCTION 'TH_USER_INFO'
IMPORTING
terminal = sf_terminal.
* Prerequisite only one profile per PC
SELECT * FROM hupast_t CLIENT SPECIFIED INTO TABLE lt_profile
WHERE terminal = sf_terminal AND client = sy-mandt.
IF NOT sy-subrc IS INITIAL.
EXIT.
ENDIF.
READ TABLE lt_profile TRANSPORTING NO FIELDS INDEX 2.
IF sy-subrc IS INITIAL.
EXIT.
ENDIF.
READ TABLE lt_profile INTO gs_profile INDEX 1.
* PERFORM set_profile.
ENDFORM. "read_packstation
Call to RFC function HU_GET_RFC_DATA
data: lt_weight type table of hum_scale,
ls_weight type hum_scale,
L_RFC_DESTINATION LIKE RFCDISPLAY-RFCDEST.
l_rfc_destination = RFC_FOR_SCALE. "RFC Destination
ls_weight-waage = NAME_OF_SCALE. "Name of scale in ERP-Scale
ls_weight-brgew = '0.000'.
ls_weight-gewei = space.
append ls_weight to lt_weight.
CALL FUNCTION 'HU_GET_RFC_DATA' destination l_rfc_destination
TABLES
ET_WEIGHT = lt_weight
EXCEPTIONS
COMMUNICATION_FAILURE = 1 MESSAGE MSG_TEXT
SYSTEM_FAILURE = 2 MESSAGE MSG_TEXT.
.
if not sy-subrc is initial.
concatenate text-040 l_rfc_destination msg_text
into msg_text separated by space.
message s001(vl) with msg_text.
leave to transaction 'ZTESTWEIGH'.
endif.
clear ls_weight.
read table lt_weight into ls_weight index 1.
if ls_weight-brgew is initial.
message e203(hudialog) with l_rfc_destination.
endif.
catch system-exceptions CONVT_NO_NUMBER = 9 .
p_weight = ls_weight-brgew.
endcatch.
Complete example
*&---------------------------------------------------------------------*
*& Report ZTESTSCALE *
*& *
*&---------------------------------------------------------------------*
*& Author: Pocket Programs 2013 *
*& ============================= *
*& Example ABAP for use with ERP-Scale see www.pocketprograms.com *
*& *
*& Requires transaction ZTESTWEIGH to be created to run this report *
*& *
*&---------------------------------------------------------------------*
REPORT ZPP_TEST_ERPSCALE .
TABLES: sscrfields.
parameter: p_packst type HUM_PROFILE default 'ERPSCALE'.
* Declaration of sel screen buttons
SELECTION-SCREEN BEGIN OF LINE.
SELECTION-SCREEN PUSHBUTTON (30) w_button USER-COMMAND BUT1.
SELECTION-SCREEN END OF LINE.
parameter: p_weight(20) MODIF ID DSP.
parameter: p_unit(20) MODIF ID DSP.
parameter: p_text(20) MODIF ID DSP.
parameter: p_dummy1(20) MODIF ID DSP.
parameter: p_dummy2(20) MODIF ID DSP.
data: gs_profile type hupast_t.
data: lt_weight type table of hum_scale,
ls_weight type hum_scale,
MSG_TEXT(120) TYPE C, "Message text
L_RFC_DESTINATION LIKE RFCDISPLAY-RFCDEST.
data: l_weight like vekp-brgew.
data: p_msg(80).
*=================================================
initialization.
* Make result fields read-only
LOOP AT SCREEN.
IF SCREEN-GROUP1 = 'DSP'.
SCREEN-INPUT = 0.
MODIFY SCREEN.
ENDIF.
ENDLOOP.
* Add displayed text string to buttons
w_button = 'Get weight using ERP-Scale'.
* Determine packing station profile from PC hostname
perform read_packstation.
p_packst = gs_profile-packing_station.
*================================================
AT SELECTION-SCREEN.
* Check if button has been pressed
if sscrfields-ucomm eq 'BUT1'.
perform read_profile using p_packst.
* rfc-destination aus Customizing:
l_rfc_destination = gs_profile-RFC_FOR_SCALE.
ls_weight-waage = gs_profile-NAME_OF_SCALE.
if l_rfc_destination is initial.
clear: p_weight, p_unit, p_text, p_dummy1, p_dummy2.
message e203(hudialog) with l_rfc_destination.
endif.
* Function module must be called with at least one
* entry in the table
ls_weight-brgew = '0.000'.
ls_weight-gewei = space.
append ls_weight to lt_weight.
CALL FUNCTION 'HU_GET_RFC_DATA' destination l_rfc_destination
TABLES
ET_WEIGHT = lt_weight
EXCEPTIONS "<< begin note 205878
COMMUNICATION_FAILURE = 1 MESSAGE MSG_TEXT
SYSTEM_FAILURE = 2 MESSAGE MSG_TEXT.
if not sy-subrc is initial.
concatenate text-040 l_rfc_destination msg_text
into msg_text separated by space.
message s001(vl) with msg_text.
clear: p_weight, p_unit, p_text, p_dummy1, p_dummy2.
return.
endif.
clear ls_weight.
read table lt_weight into ls_weight index 1.
if ls_weight-brgew is initial.
message e203(hudialog) with l_rfc_destination.
endif.
catch system-exceptions CONVT_NO_NUMBER = 9 .
p_weight = ls_weight-brgew.
endcatch.
if sy-subrc = 9.
message s000(zz) with ls_weight.
endif.
concatenate p_weight ls_weight-GEWEI into p_msg
separated by space.
* message s000(zz) with p_msg.
p_unit = ls_weight-GEWEI.
p_text = ls_weight-text.
p_dummy1 = ls_weight-dummy1.
p_dummy2 = ls_weight-dummy2.
endif.
*==============================================================
at SELECTION-SCREEN OUTPUT.
* Make result fields read-only
LOOP AT SCREEN.
IF SCREEN-GROUP1 = 'DSP'.
SCREEN-INPUT = 0.
MODIFY SCREEN.
ENDIF.
ENDLOOP.
*==============================================================
*&---------------------------------------------------------------------*
*& Form READ_PROFILE
*&---------------------------------------------------------------------*
* text
*----------------------------------------------------------------------*
* --> p1 text
* <-- p2 text
*----------------------------------------------------------------------*
FORM read_packstation.
statics sf_terminal(20).
DATA: lt_profile TYPE TABLE OF hupast_t.
* Get hostname from PC
CALL FUNCTION 'TH_USER_INFO'
IMPORTING
terminal = sf_terminal.
* prerequisite there is only one profile per PC
SELECT * FROM hupast_t CLIENT SPECIFIED INTO TABLE lt_profile
WHERE terminal = sf_terminal AND client = sy-mandt.
IF NOT sy-subrc IS INITIAL.
EXIT.
ENDIF.
READ TABLE lt_profile TRANSPORTING NO FIELDS INDEX 2.
IF sy-subrc IS INITIAL.
EXIT.
ENDIF.
READ TABLE lt_profile INTO gs_profile INDEX 1.
* PERFORM set_profile.
ENDFORM. "read_packstation
*&---------------------------------------------------------------------*
*& Form READ_PROFILE
*&---------------------------------------------------------------------*
* text
*----------------------------------------------------------------------*
* --> p1 text
* <-- p2 text
*----------------------------------------------------------------------*
FORM read_profile using p_st.
DATA: lt_profile TYPE TABLE OF hupast_t.
* prerequisite there is only one profile per PC
SELECT * FROM hupast_t CLIENT SPECIFIED INTO TABLE lt_profile
WHERE PACKING_STATION = p_st AND client = sy-mandt.
IF NOT sy-subrc IS INITIAL.
EXIT.
ENDIF.
READ TABLE lt_profile TRANSPORTING NO FIELDS INDEX 2.
IF sy-subrc IS INITIAL.
EXIT.
ENDIF.
READ TABLE lt_profile INTO gs_profile INDEX 1.
* PERFORM set_profile.
ENDFORM. "read_profile
Determine Packing station profile based on hostname of user’s PC when using Fiori.
If the code is being used in a Fiori app, the function module TH_USER_INFO does not return the hostname of the operator’s PC, but the IP address. The FQDN of the operator’s PC can be determined using function module RFC_IP_TO_HOST.
We suggest creating a second packing station profile with the terminal matching the RFCHOST returned by RFC_IP_TO_HOST. This way the custom transaction will determine a valid packing station profile if called from the SAP gui or Fiori.
FORM read_packstation.
statics sf_terminal(20).
DATA: lt_profile TYPE TABLE OF hupast_t.
* Get hostname from PC
CALL FUNCTION 'TH_USER_INFO'
IMPORTING
terminal = sf_terminal.
* prerequisite there is only one profile per PC
SELECT * FROM hupast_t CLIENT SPECIFIED INTO TABLE lt_profile
WHERE terminal = sf_terminal AND client = sy-mandt.
IF NOT sy-subrc IS INITIAL. " No matching packing station profile found, perhaps Fiori?
* Check if Fiori
data lv_rfchost type RFCHOST_EXT.
data lv_rfcip type RFCHOST_EXT.
lv_rfcip = sf_terminal.
CALL FUNCTION 'RFC_IP_TO_HOST' "Get the FQDN of the host PC
EXPORTING
rfcip = lv_rfcip
IMPORTING
RFCHOST = lv_rfchost
EXCEPTIONS
IP_TO_HOST_CONVERSION_ERROR = 1
OTHERS = 2.
IF NOT sy-subrc IS INITIAL. "No FQDN returned
exit.
ENDIF.
"Check if there is a profile for the FQDN
SELECT * FROM hupast_t CLIENT SPECIFIED INTO TABLE lt_profile
WHERE terminal = lv_rfchost AND client = sy-mandt.
IF NOT sy-subrc IS INITIAL.
EXIT.
ENDIF.
ENDIF.
READ TABLE lt_profile TRANSPORTING NO FIELDS INDEX 2.
IF sy-subrc IS INITIAL.
EXIT.
ENDIF.
READ TABLE lt_profile INTO gs_profile INDEX 1.
* PERFORM set_profile.
ENDFORM. "read_packstation