Binary Number (Bin); Octal Number (Oct); D.4.3 Value, Constant [K] / [H] - Delta Electronics AC Motor Drive VFD-E User Manual

D.4.3 Value, Constant [K] / [H]

K
Constant
H
There are five value types for DVP-PLC to use by the different control destination. The
following is the explanation of value types.
1.

Binary Number (BIN)

It uses binary system for the PLC internal operation or storage. The relative information of
binary system is in the following.
Bit :
Nibble :
Byte :
Word :
Double :
Word
The relations among bit, nibble, byte, word, and double word of binary number are shown as
follows.
BY3
NB7
2.

Octal Number (OCT)

The numbers of external input and output terminal of DVP-PLC use octal number.
Example:
External input: X0~X7, X10~X17...(device number)
Revision June 2008, 04EE, SW--PW V1.11/CTL V2.11
X0
Y0
X10
Y0
Decimal K-32,768 ~ K32,767 (16-bit operation)
Hexadecimal H0000 ~ HFFFF (16-bit operation)
Bit is the basic unit of binary system, the status are 1 or 0.
It is made up of continuous 4 bits, such as b3~b0. It can be used to represent
number 0~9 of decimal or 0~F of hexadecimal.
It is made up of continuous 2 nibbles, i.e. 8 bits, b7~b0. It can used to represent
00~FF of hexadecimal system.
It is made up of continuous 2 bytes, i.e. 16 bits, b15~b0. It can used to represent
0000~FFFF of hexadecimal system.
It is made up of continuous 2 words, i.e. 32 bits, b31~b0. It can used to
represent 00000000~FFFFFFFF of hexadecimal system.
W1
BY2
NB6 NB5 NB4
Appendix D How to Use PLC Function|
The output of Y0 will be decided by circuit
1
○
2
Y0 is repeated
2
DW
W0
BY1
NB3 NB2
, i.e. decided by On/Off of X10.
BY0
NB1 NB0
Double Word
Word
Byte
Nibble
Bit
D-21