Hitachi PLC - Page 10

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I/O address of EH-150
The I/O address of EH-150 depends on the module location and I/O type.
& Hexadecimal expression
As mentioned above, each hexadecimal code can be expressed as 4 bits.
0 : 0000 4 : 0100 8 : 1000 C : 1100
1 : 0001 5 : 0101 9 : 1001 D : 1101
2 : 0010 6 : 0110 A : 1010 E : 1110
3 : 0011 7 : 0111 B : 1011 F : 1111
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
X15 X0X7X8
Y15 Y0Y7Y8
Bit number (decimal)
Slot number (0 - 7)
Unit number (0 - 1)
I/O type
Word number
Slot number (0 - 7)
Unit number (0 - 1)
I/O type
[ Bit ]
X
¨ ¨ ¨¨
[ Word ]
WX
¨ ¨ ¨
X0000 – X0015
CPU
Power supply
Basic unit
(Unit 0)
Expansion unit
(Unit 1)
I/O controller module
EH-XD16
EH-YTP64
EH-YTP32
EH-AX8V
EH-XD16
EH-AX8V
X0100 – X0115
WX020 – WX027
EH-AY4V
Y0300 – Y0363
WY040 – WY043
Y1200 – Y1231
EH-XD64
X1000 – X1063
WX140 – WX147
16 DI
16 DI
8 AI
64 DO
4 AO
64 DI
32 DO
4 AI
0 1 2 3 4
0 1 2 3 4
* 16 DI : 16 points Digital Input module, 4 AO : 4 channels Analog Output module