AH500 Programming Manual
6-258
API
Instruction code Operand Function
1114 NSFR P
D, n Shifting n registers to the right
Device
X Y M S T C HC D L SM SR E PR K 16#
“$” DF
Pulse instruction
16-bit instruction (5 steps)
32-bit instruction
Symbol:
D
：
Initial device involve in the shift Word
n
：
Data length Word
Explanation:
1. The data in the n registers starting from D is shifted to the right, and the data in D+n-1 is
cleared to 0.
2. Generally, the pulse instruction NSFRP is used.
3. The operand n should be within the range between 1 and 512.
Example:
When X0.0 is ON, the data in D1~D6 is shifted to the right, and the data in D6 is cleared to 0.
After the shift
Being cleared to 0
D0D1D2D3D4D5
D0D1D2D3D4D5
1142328754
9578
2235
0
30
D6
D6
42328754
9578
2235
30
Additional remark:
1. If D+n-1 exceeds the device range, the instruction is not executed, SM0 is ON, and the error
code in SR0 is 16#2003.
2. If n is less than 1, or if n is larger than 512, the instruction is not executed, SM0 is ON, and the
error code in SR0 is 16#200B.
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