Table 6-2 Summary of Expressions, Operators and Functions

[ ]

Name Program

( )

Name Variable

&&

Logical AND

Logical OR

!

Logical NOT

!=

Not Equal

+

Add

Subtract

*

Multiply

/

Divide

=

Equal

>

Greater Than

>=

Greater Than or equal to

<

Less Than

<=

Less Than or equal to

&

Bitwise Boolean AND

Bitwise Boolean OR

++

Increment Variable

+=

Increment by n

– –

Decrement Variable

–=

Decrement by n

<<

Shift Left

>>

Shift Right

Helpful Hints Programming your application

This section provides additional information that may be helpful to begin programming the LinStep+. Also, several practical examples are given that can be used or modified. More program examples are available on the Intelliware disk set.

Programming Overview

First, you must decide how the LinStep+ fits into the overall machine control hierarchy. Generally there are three ways that the LinStep+ may be used:

1.Stand–alone mode – controls all the Inputs/Outputs and motion.

2.With a PLC – the PLC runs the machine and calls on the LinStep+ via program select lines for motion.

3.In a “hosted” mode – the PC sends serial commands to the LinStep+ for execution. The LinStep+ uses a sequential, interpretive command processor. This means that commands in a program are executed one at a time, and that one command must be completed before the next command is processed.

6-24 Keypad Programming

MN1854

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Baldor mn1854 manual Summary of Expressions, Operators and Functions, Helpful Hints Programming your application