Hitachi PLC Getting Started page 10

I/O address of EH-150
The I/O address of EH-150 depends on the module location and I/O type.
X ¨ ¨ ¨¨
[ Bit ]
16 DI X0000 – X0015
CPU
Power supply
Basic unit
(Unit 0)
Expansion unit
(Unit 1)
I/O controller module
* 16 DI : 16 points Digital Input module, 4 AO : 4 channels Analog Output module
&
Hexadecimal expression
As mentioned above, each hexadecimal code can be expressed as 4 bits.
0 : 0000
1 : 0001
2 : 0010
3 : 0011
Since one word (WX, WY, WM, etc.) consists of 16 bits (X, Y, M, etc.), the relation between WX/WY
and X/Y is as follows. ("H" stands for hexadecimal.)
WX 0 = H1234 = 0001 0010 0011 0100
WY 5 = H00FF = 0000 0000 1111 1111
Bit number (decimal)
Slot number (0 - 7)
Unit number (0 - 1)
I/O type
0 1
0 1
4 : 0100 8 : 1000
5 : 0101 9 : 1001
6 : 0110 A : 1010
7 : 0111 B : 1011
X15 X8
Y15 Y8
WX ¨ ¨ ¨
[ Word ]
16 DI
8 AI
64 DO
2 3 4
64 DI
2 3 4
C : 1100
D : 1101
E : 1110
F : 1111
X7 X0
Y7 Y0
9
Word number
Slot number (0 - 7)
Unit number (0 - 1)
I/O type
X0100 – X0115
WX020 – WX027
Y0300 – Y0363
4 AO WY040 – WY043
X1000 – X1063
32 DO Y1200 – Y1231
4 AI WX140 – WX147