Mitsubishi 00JCPU, Руководство пользователя

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CHAPTER2 SEQUENCE PROGRAMS
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2.4 D
ata Used in Sequence Progr
ams
2.4 Data Used in Sequence Programs
The CPU module represents numeric and alphabetic data using two symbols (states): 0 (off) and 1 (on).
Data represented using these two symbols is called binary number (BIN).
The CPU module can also use hexadecimal (HEX) (each hexadecimal digit represents four binary bits), binary-coded
decimal (BCD), or real numbers.
Table2.4 shows the numeric representations of BIN, HEX, BCD, and DEC (decimal).
Table2.4 Numeric representations of BIN, HEX,BCD,and DEC
DEC (Decimal) HEX (Hexadecimal) BIN (Binary) BCD (Binary-coded decimal)
0 0 0 0
1 1 1 1
2 2 10 10
3 3 11 11
9 9 1001 1001
10 A 1010 1 0000
11 B 1011 1 0001
12 C 1100 1 0010
13 D 1101 1 0011
14 E 1110 1 0100
15 F 1111 1 0101
16 10 1 0000 1 0110
17 11 1 0001 1 0111
47 2F 10 1111 100 0111
32766 7FFE 0111 1111 1111 1110 ---
32767 7FFF 0111 1111 1111 1111 ---
-32768 8000 1000 0000 0000 0000 1000 0000 0000 0000
-32767 8001 1000 0000 0000 0001 1000 0000 0000 0001
-2 FFFE 1111 1111 1111 1110 ---
-1 FFFF 1111 1111 1111 1111 ---