Delta AH500 - Page 435

Chapter 6 Applied Instructions
6-267
Example 2:
1. When X0.0 is switched from OFF to ON, the instruction ENCO encodes the values of b0~b7 in
D10 as the values of b2~b0 in D20, and the values of b15~b3 in D20 become 0. (The values of
b8~b18 in D10 are invalid data.)
2. After the instruction ENCO is executed and X0.0 is switched OFF, the data in D is unchanged.
0 0 0 0 0 0 01 1 1 1 1
0 0 0 0 0 0 0 0 0 0 0 0 0 1
3
b15 b0
The values of b8~b18 in D10 are invalid data.
b15
b0
D10
D20
7 6 5 4 2 1 0
The values of b15~b3 in D20 become 0.
10
0 0 0 0
Additional remark:
1. If there is no bit whose value is 1 in the source device specified by S, the instruction is not
executed, SM0 is ON, and the error code in SR0 is 16#2003.
2. Suppose S is a bit device. If n is less than 1, or if n is larger than 8, the instruction is not
executed, SM0 is ON, and the error code in SR0 is 16#200B.
3. Suppose S is a word device. If n is less than 1, or if n is larger than 4, the instruction is not
executed, SM0 is ON, and the error code in SR0 is 16#200B.
4. Suppose S is a bit device. If S+(2^n)-1 exceeds the device range, the instruction is not
executed, SM0 is ON, and the error code in SR0 is 16#2003.
5. Suppose D is a bit device. 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.