Manual VIPA CPU 21x
Chapter 11 Integrated OBs SFBs SFCs
HB103E - Rev. 05/45
11-27
SFC 228 - RW_KACHEL
This SFC allows you the direct access to the page frame area of the CPU
with a size of 4KByte. The page frame area is divided into four page
frames, each with a size of 1KByte.
By fixing the page frame (i.e. "Kachel") no., offset and data width, the
SFC 228 enables read and write access to an eligible page frame area.
Note!
This SFC has been developed for test purposes and for building-up
proprietary communication systems and is completely at the user's
disposal. Please regard that a write access to the page frame area
influences a communication directly!
Page frame (i.e. "Kachel") no.
Type the page frame no. that you want to access.
Value range: 0 ... 3
Page frame offset
Fix here an offset within the specified page frame.
Value range: 0 ... 1023
Read/Write
This parameter specifies a read res. write access.
0 = read access, 1 = write access
Size
The size defines the width of the data area fixed via K_NR and OFFSET.
You may choose between the values 1, 2 and 4Byte.
Return Value
Byte where an error message is returned to.
Description
Parameter
K_NR
OFFSET
R_W
SIZE
RET_VAL
11x 21x 31x 51x
✓
✓
✓
Содержание CPU 21 Series
Страница 1: ...Manual VIPA CPU 21x Order No VIPA HB103E Rev 05 45 ...
Страница 2: ...Lerrzeichen ...
Страница 6: ...About this Manual Manual VIPA CPU 21x Subject to change to cater for technical progress ...
Страница 10: ...Contents Manual VIPA CPU 21x iv HB103E Rev 05 45 ...
Страница 30: ...Chapter 1 Principles Manual VIPA CPU 21x 1 18 HB103E Rev 05 45 ...
Страница 58: ...Chapter 2 Hardware description Manual VIPA CPU 21x 2 28 HB103E Rev 05 45 ...
Страница 80: ...Chapter 3 Deployment CPU 21x Manual VIPA CPU 21x 3 22 HB103E Rev 05 45 ...
Страница 178: ...Chapter 5 Deployment CPU 21x 2BT02 with H1 TCP IP Manual VIPA CPU 21x 5 48 HB103E Rev 05 45 ...