5756B 41
Write Function FC 22 MEM_WRIT
Call Description:
Function FC 22 MEM_WRIT copies consistent data blocks
(data records) from the selected address area of the PLC and
writes them to the controller board buffer.
Program Sequence of FC 22:
Parameter Descriptions:
For further information on the driver blocks and
examples, please refer to the
IBS S7 300 DSC SWD UM E Driver Manual
(Order No. 27 43 25 5).
AN M11.0
S M11.0
CALL FC22 // Call write function
IBDB := DB20 // INTERBUS data block
MODE := 1 // Function operating mode
SOURCE_AREA := 0 // Not used
SOURCE_AREA_NR := 0 // Not used
SOURCE_OFFSET := 0 // Not used
SOURCE_LENGTH := 0 // Not used
DESTINATION := 0 // Not used
RET := M11.1 // Result bit
BUSY := M11.0 // Activate FC 22
Parameter Value Meaning
IBDB DB 20 Global INTERBUS data block
MODE 1 Write data record 1 (set in
IBS CMD)
DESTINATION 0 Not used
SOURCE_AREA 0 Not used
SOURCE_AREA_NR 0 Not used
SOURCE_OFFSET 0 Not used
SOURCE_LENGTH 0 Not used
RET M11.1 = 0: The function was
executed without errors.
= 1: An error occurred.
BUSY M11.0 Activate FC 22
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