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134
If a power failure occurs during a shift operation across more than 50 words,
the shift operation might not be completed.
ER:
The St and E words are in different areas, or St is greater than E.
Indirectly addressed DM word is non-existent. (Content of
*
DM word
is not BCD, or the DM area boundary has been exceeded.)
5-13-8
ONE DIGIT SHIFT RIGHT – SRD(75)
Ladder Symbols
Operand Data Areas
SRD(75)
E
St
@SRD(75)
E
St
E
: End word
IR, AR, DM, HR, LR
St
: Starting word
IR, AR, DM, HR, LR
St and E must be in the same data area, and E must be less than or equal to
St.
When the execution condition is OFF, SRD(75) is not executed. When the
execution condition is ON, SRD(75) shifts data between St and E (inclusive)
by one digit (four bits) to the right. 0 is written into the leftmost digit of St and
the rightmost digit of E is lost.
2
St
3
1
E
4 5
C
8
F
Lost data
0
...
If a power failure occurs during a shift operation across more than 50 words,
the shift operation might not be completed.
Flags
ER:
The St and E words are in different areas, or St is greater than E.
Indirectly addressed DM word is non-existent. (Content of
*
DM word
is not BCD, or the DM area boundary has been exceeded.)
5-13-9
WORD SHIFT – WSFT(16)
Ladder Symbols
Operand Data Areas
WSFT(16)
St
E
@WSFT(16)
St
E
St
: Starting word
IR, AR, DM, HR, LR
E
: End word
IR, AR, DM, HR, LR
Precautions
Flags
Limitations
Description
Precautions
Data Shifting
Section 5-13