Te pongo un programa de ejemplo para que puedas seguirlo.
REPORT ztexto_infotipo.
INCLUDE rpcitx00.
INCLUDE rpcitd00.
INFOTYPES: 2001.
DATA: gt_p2001 LIKE p2001 OCCURS 0 WITH HEADER LINE.
DATA: gf_pernr LIKE p2001-pernr,
gf_begda LIKE p2001-begda,
gf_endda LIKE p2001-endda,
l_len TYPE i,
gf_key LIKE pskey,
gf_text(200).
gf_pernr = '888777'.
gf_begda = '20110101'.
gf_endda = '20111231'.
gf_text = 'Texto de prueba...'.
* Se recupera la información del infotipo 2001
CLEAR gt_p2001[].
CALL FUNCTION 'HR_READ_INFOTYPE'
EXPORTING
pernr = gf_pernr
infty = '2001'
begda = gf_begda
endda = gf_endda
TABLES
infty_tab = gt_p2001
EXCEPTIONS
infty_not_found = 1
OTHERS = 2.
READ TABLE gt_p2001 WITH KEY begda = gf_begda
endda = gf_endda.
IF sy-subrc EQ 0.
IF gf_text IS NOT INITIAL.
MOVE-CORRESPONDING gt_p2001 TO gf_key.
* Dividimos el texto en partes
DO 3 TIMES.
l_len = STRLEN( gf_text ).
IF l_len >= 72.
l_len = 72.
ENDIF.
ptext-line = gf_text(l_len).
APPEND ptext.
gf_text = gf_text+l_len.
IF gf_text IS INITIAL.
EXIT.
ENDIF.
ENDDO.
ENDIF.
EXPORT ptext TO DATABASE pcl1(tx) ID gf_key.
ENDIF.