Emerson P/N 400361-00 manual Do While/Loop, Wait For Time, Call Program

valid range for the numbers provided is 0 to 2147483647.

Example:

For Count = 1 to 5

Index.1.Initiate

Dwell For Time 1.000 'seconds

Next

Example:

For Count = 1 To 10

Wait For ModuleInput.1 = ON

Index.0.Initiate

Wait For Index.AnyCommandComplete

EZOutput.1=ON

Wait For Time 1.000 'seconds

EZOutput.1=OFF

Next

8.4.1.4 Do While/Loop

This program instruction is used for repeating a sequence of code as long as an expression is true. To loop forever use "TRUE" as the test expression as shown in the third example below. The test expression is tested before the loop is entered. If the test expression is evaluated as False

(0) the code in the loop will be skipped over.

Logical tests (AND, OR, NOT) can be used in the Do While/ Loop instruction. Parenthesis "()" can be used to group the logical tests.

Example:

Do While EZInput.1=ON

Index.1.Initiate

Dwell For Time 1.000 'seconds

Loop

Example:

Do While (Slot2.Input.4=ON AND

Slot2.Input.4=OFF)

Index.1.Initiate

Dwell For Time 1.000 'seconds

Loop

Example:

Do While (TRUE)

Index.1.Initiate

Dwell For Time 1.000 'seconds

Loop

8.4.1.5 Wait For

This program flow instruction is used to halt program execution until an expression becomes true. Once the expression becomes true the program continues on with the next line of code.

Logical tests (AND, OR, NOT) can be used in the Wait For instruction. Output events (EZ=ON, AtVel, etc.) as well as comparisons (PosnFeedback > 1234, VelFeedback < 100, etc.) can be used in a Wait For instruction.

Example:

Wait For (EZInput.1=ON AND

EZInput.2=OFF)

Index.0.Initiate

Example:

Wait For Index.AnyCommandComplete

If (EZInput.2=ON) Then

Jog.0.PlusInitiate 'Vel=20in/s

Wait For EZInput.2=OFF

Jog.Stop

Endif

If (SPInput.6=ON) Then

Jog.0.MinusInitiate 'Vel=20in/s

Wait For SPInput.6=OFF

Jog.Stop

Endif

Example:

Wait For (MasterAxis.PosnFeedback >

1000.00)

EZOutput.1 = ON

Example:

Wait For (VelFeedback > 50.00)

EZOutput.2 = ON

8.4.1.6 Wait For Time

This program instruction is used to halt program execution for a specified period of time. This instruction is not a motion instruction and can be used while a motion instruction is executing.

Units: Seconds, Resolution: 0.001 seconds

A comment is automatically inserted after the "Wait For Time" instruction which notes that the time is in units of seconds. The comment starts with the apostrophe ' character.

The accuracy of the Wait For Time instruction is dependant on the Trajectory Update Rate found on the Setup view. The actual accuracy for this instruction is +/- 1 Trajectory Update. Therefore, if the Trajectory Update Rate is set to 2msec, then the worst-case accuracy is 2msec.

Example:

Wait For Time 5.000 'seconds

Do While (TRUE)

Index.1.Initiate

Wait For AtVel

EZOutput.1=ON

Wait For Time 1.000 'seconds

EZOutput.1=OFF

Wait For Index.AnyCommandComplete

Loop

8.4.1.7 Call Program

This program flow instruction is used to call another program. When the called program finishes the controller

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