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7: BASIC INSTRUCTIONS

7-6 USER’S MANUAL

Example: AND LOD (Load)

For the following circuit, the AND LOD instruction can be used in two ways.

First, the AND LOD instruction can be keyed following each of the sets of circuits that

are to be connected in series.

Second, the AND LOD instruction can be entered twice at the end, after all the circuits

to be connected in series have been keyed.

In either way, there is a relationship between the quantity of LOD instructions and the

quantity of AND LOD instructions:

Quantity of AND LOD instructions = Quantity of LOD instructions – 1

Block A Block B Block C

Ladder Diagram

Operation Register Stack Register

LOD I1

OR I2

Prgm Adrs Instruction Data

LOD

AND LOD

LOD

AND LOD

Program List 1

LOD I3

OR I4

AND

LOD

LOD I5

OR I6

AND

LOD

The program represented by Block A is

stored beginning with the LOD I1 instruc-

tion, and Block B is stored with LOD I3.

Then, these two programs are read by the

AND LOD instruction which is entered

next, forming a circuit connected in series.

The program represented by Block C is stored

beginning with the LOD I5 instruction. This is

read by the ﬁnal AND LOD instruction, so

that it is connected in series with the two pro-

grams connected previously.

Operation Register Stack Register

LOD I1

OR I2

Prgm Adrs Instruction Data

LOD

AND LOD

Program List 2

LOD I3

OR I4

LOD I5

OR I6

AND

LOD

AND

LOD

The program represented by Block A is

stored beginning with the LOD I1

instruction, Block B is stored with

LOD I3, and Block C is stored with

LOD I5.

Then, the AND LOD instruction is

entered twice consecutively, connecting

the blocks in series, sequentially.

In this case, the number of stored cir-

cuits and read operations are increased.

Brand	IDEC
Model	MICRO3
Category	Controller
Language	English

IDEC MICRO3 User Manual

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IDEC MICRO3 Specifications

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