beautypg.com

2 extension condition – IAI America SSEL User Manual

Page 117

background image

95

Part 2 Programs

3.2 Extension

Condition

Conditions can be combined in a complex manner.

(SEL language)

Command

Extension

condition

Input

condition

Command

Operand

1

Operand

2

Output

Condition

1

A

Condition 2

A

Condition 3

Command

Operand

1

Operand

2

Command

Extension

condition

Input

condition

Command

Operand

1

Operand

2

Output

Condition 1

O Condition

2

Command

Operand

1

Operand

2

Command

Extension

condition

Input

condition

Command

Operand

1

Operand

2

Output

Condition

1

A

Condition 2

O

Condition 3

Command

Operand

1

Operand

2

AND extension

(Ladder diagram)

Condition

1

Condition

2

Condition

3

AND

AND

OR extension

Condition

1

Condition

2

OR

AND extension and OR extension

Condition

1

Condition

2

Condition

3

AND

OR