LG Electronics 120S user manual I/O Address Allocation, O No. allocation method

Chapter 5 Power Supply / CPU

5.8 I/O Address Allocation

I/O No. allocation means to give an address to each module in order to read data from input modules and output data to output modules.

Max. 3 expansion module is available in standard type.

Mounting module	Max. module can be mounted	remark
Expansion I/O module	3	2 modules in economic type
A/D, D/A conversion module	3	Not available on economic type
Analog timer module	3
Communication module	1

1)I/O No. allocation method

-. Basically, I/O allocation is fixed point method.(the area which is not used can be used internal relay) -. The special module is not allocated.

Module	I/O	Allocation	Remark
Main	Input	P000 ~ P03F	Fixed 64 points
	Output	P040 ~ P07F	Fixed 64 points
Expansion #1	Input	P080 ~ P08F	Fixed 16 points
	Output	P090 ~ P09F	Fixed 16 points
Expansion #2	Input	P100 ~ P10F	Fixed 16 points
	Output	P110 ~ P11F	Fixed 16 points
Expansion #3	Input	P120 ~ P12F	Fixed 16 points
	Output	P130 ~ P13F	Fixed 16 points
Special		None	A/D,A/T,Communication

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