Hitachi NJI-350B - Manual (Page 16)

Chapter 2 System Overview
2-2
[1] Basic unit
[2] Expansion unit
[3] Expansion cable
[2] Expansion unit
[2] Expansion unit [2] Expansion unit
[3] Expansion cable
[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.