Asynchronous Shift Register: Asft - Omron SYSMAC CJ - REFERENCE MANUAL 01-2008 Reference Manual

Data Shift Instructions
3-9-3

ASYNCHRONOUS SHIFT REGISTER: ASFT(017)

Purpose
Ladder Symbol
Variations
Applicable Program Areas
366
Controlling Data
Resetting Data
All bits from St to E and the Carry Flag are set to 0 and no other data can be
received when the reset input bit (bit 15 of C) is ON.
Shifting Data Left (from Rightmost to Leftmost Bit)
When the shift input bit (bit 14 of C) is ON, the contents of the input bit (bit 13
of C) is shifted to bit 00 of the starting word, and each bit thereafter is shifted
one bit to the left. The status of bit 15 of the end word is shifted to the Carry
Flag.
Shifting Data Right (from Leftmost to Rightmost Bit
When the shift input bit (bit 14 of C) is ON, the contents of the input bit (bit 13
of C) (I/O) is shifted to bit 15 on the end word, and each bit thereafter is
shifted one bit to the right. The status of bit 00 of the starting word is shifted to
the Carry Flag.
Data
input
Shifts all non-zero word data within the specified word range either towards St
or toward E, replacing 0000Hex word data.
ASFT(017)
C: Control word
C
St: Starting word
St
E: End word
E
Variations Executed Each Cycle for ON Condition
Executed Once for Upward Differentiation
Executed Once for Downward Differentiation Not supported
Immediate Refreshing Specification
Block program areas
OK OK
Step program areas Subroutines
OK
Section 3-9
Data
input
ASFT(017)
@ASFT(017)
Not supported
Interrupt tasks
OK