Delta AS Series Programming Manual page 608

D0
The data is read.
Additional remarks
1. If the value in S is less than 0, the instruction is not executed, SM0 is ON, and the error code in SR0 is 16#2003.
2. If S+n-1 exceeds the device range, the instruction is not executed, SM0 is ON, and the error code in SR0 is
16#2003.
3. For 16-bit instruction, the value in the operand n must be between 2–512. For 32-bit instruction, the value in the
operand n must be between 2–256. If not, the instruction is not executed, SM0 is ON, and the error code in SR0 is
16#200B.
4. You can use this instruction with SFWR instruction (API 1104) to write and read the data in a first in first out (FIFO)
method.
n=5
D 28 D26 D24
C ha pt er 6 A p pl i e d In s tr uc t io ns
Pointer
D22 D20
6_
6 - 3 2 9