Fill_Blk (Fill Block) And Ufill_Blk (Fill Block Uninterruptible) Instructions - Siemens S7-1200 System Manual

Basic instructions
7.6 Move operations
SCL has no FieldRead or FieldWrite instructions, but supports indirect addressing of an
array with a variable:
#Tag_1 := "Data_block_1".Bool_Array[#Index];
7.6.3

FILL_BLK (Fill block) and UFILL_BLK (Fill block uninterruptible) instructions

Table 7- 68 FILL_BLK and UFILL_BLK instructions
LAD / FBD SCL
FILL_BLK(
out=>_variant_out);
UFILL_BLK(
out=>_variant_out);
Table 7- 69 Data types for parameters
Parameter Data type
IN SInt, Int, DInt, USInt, UInt, UDInt, Real, LReal, Byte, Word,
DWord
COUNT USInt, UInt
OUT SInt, Int, DInt, USInt, UInt, UDInt, Real, LReal, Byte, Word,
DWord
Note
Rules for data fill operations
• To fill with the BOOL data type, use SET_BF, RESET_BF, R, S, or output coil (LAD)
• To fill with a single elementary data type, use MOVE
• To fill an array with an elementary data type, use FILL_BLK or UFILL_BLK
• To fill a single character in a string, use MOVE
• The FILL_BLK and UFILL_BLK instructions cannot be used to fill arrays in the I, Q, or M
memory areas.
242
in:=_variant_in,
count:=int,
in:=_variant_in,
count:=int
Description
Interruptible fill instruction: Fills an address range with copies of a
specified data element
Uninterruptible fill instruction: Fills an address range with copies of a
specified data element
Description
Data source address
Number of data elements to copy
Data destination address
S7-1200 Programmable controller
System Manual, 03/2014, A5E02486680-AG