Appendix 4 Data Used In Sequence Programs; Appendix - Mitsubishi Electric Q01UCPU User Manual

Appendix 4

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.
The following table lists the numeric representations of BIN, HEX, BCD, and DEC (decimal).
BIN (Binary)
1001
1010
1 0000
1 0001
•
•
•
10
•
•
•
0111 1111 1111
0111 1111 1111
1000 0000 0000 0000
1000 0000 0000 0001
• • •
• • •
• • •
1111 1111 1111
1111 1111 1111
486
Data Used in Sequence Programs
DEC (Decimal)
0 0
1 1
10 2
11 3
• 4
• 5
• 6
• 7
• 8
9
10
1011 11
1100 12
1101 13
1110 14
1111 15
16
17
• •
• •
• •
1111 47
• •
• •
• •
1110 32766
1111 32767
-32768
-32767
• •
• •
• •
1110 -2
1111 -1
HEX (Hexadecimal)
0
1
2
3
4
5
6
7
8
9
A
B
C
D
E
F
10
11
•
•
•
2F
•
•
•
7FFE
7FFF
8000
8001
•
•
•
FFFE
FFFF
BCD (Binary-coded decimal)
1
1
1
1
1
1
1
1
•
•
•
100
-
-
1000 0000 0000
1000 0000 0000
-
-
0
1
10
11
•
•
•
•
•
1001
0000
0001
0010
0011
0100
0101
0110
0111
•
•
•
0111
0000
0001