307
3. Instructions
CS/CJ/NSJ Series Instructions Reference Manual (W474)
Data Shift Instruction
3
SFT
Data Shift Instruction
SFT
Applicable Program Areas
* OK as long as words in the CIO Area, Work Area, or Holding Area are specified in the function block instance allocation
areas.
Operands
z Operand Specifications
Flags
Function
• When the execution condition on the shift input changes from OFF to ON, all the data from St to E is
shifted to the left by one bit (from the rightmost bit to the leftmost bit), and the ON/OFF status of the
data input is placed in the rightmost bit.
Instruction Mnemonic Variations
Function
code
Function
SHIFT REGISTER SFT --- 010 Operates a shift register.
Symbol
SFT
Area
Function block
definitions
Block program areas Step program areas Subroutines Interrupt tasks
SFC action or transition
programs
Usage OK Not allowed OK OK OK OK
Operand Description Data type Size
St Starting word UINT Variable
EEnd word UINT Variable
Area
Word addresses
Indirect DM/EM
addresses
Con-
stants
Registers Flags
Pulse
bits
TR
bits
CIO WR HR AR T C DM EM
@DM
@EM
*DM
*EM
DR IR
Indirect
using IR
TK CF
St
OK OK OK --- --- --- --- --- --- --- --- --- --- OK --- --- --- ---
E
Name Label Operation
Error Flag ER • ON if the indirect IR address for St and E is not in the CIO, WR or HR data areas.
• OFF in all other cases.
SFT(010)
St
E
Data input
Shift input
Reset input
St: Starting word
E: End word
E
Status of data input
for each shift input
Lost
St+1, St+2, ... St
To Next Page
Loading...
Need help?
General
