Hitachi NJI-350B manual 23,28-point type system configuration diagram, Device name Description

Chapter 2 System Overview

[1] Basic unit

[2] Expansion unit	[2] Expansion unit
[3] Expansion cable	[3] Expansion cable

[2] Expansion unit [2] Expansion unit

[3] Expansion cable [3] Expansion cable

Figure 2.3 23,28-point type system configuration diagram

No restriction for combination of 14,23,28 points, and basic/expansion unit.

14 points basic unit can handle any type of expansion units, and 23/28 points basic unit as well.

No.	Device name	Description
1]	Basic unit	Calculates, imports inputs, and controls outputs according to the contents of user programs.
2]	Expansion unit	14 points digital unit, 4 in/2 out analog unit
3]	Expansion cable	Cable for connecting the basic unit and expansion unit, or between expansion units.

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