Chapter 7 Programming
7-5
The user program is managed in circuit units. One circuit can describe nine contact points (a-type contact point or b-type
contact point) and seven coils as shown in the figure below.
Figure 7.1 Size of one circuit
Or, one relational box can be described using the width of three contact points. The relational box can be considered as an
a-type contact point that turns on when the conditions in the box are established (Figure 7.2).
Figure 7.2 Example when using a relational box
Summary of Contents for HIDIC MICRO-EH
Page 1: ...HITACHI PROGRAMMABLE CONTROLLER APPLICATION MANUAL NJI 350B X ...
Page 12: ...MEMO ...
Page 14: ...Chapter 1 Features 1 2 MEMO ...
Page 50: ...Chapter 4 Product lineup and wiring 4 18 MEMO ...
Page 196: ...Chapter 5 Instruction Specifications 5 146 ...
Page 263: ...Chapter 11 Communication Specifications 11 10 MEMO ...