Emerson Control Techniques FM-4 Reference Manual page 172

FM-4 Programming Module Reference Manual
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.
Examples:
Wait For Time 5.000
Do While (TRUE)
Index.1.Initiate
Wait For AtVel
get velocity
DriveOutput.1=ON
Wait For Time 1.000
DriveOutput.1=OFF
Wait For Index.AnyCommandComplete
Loop
BitAnd
This operator may be used when it is desirable to AND each individual bit of a 32-bit parameter.
var.var2 = var.var0 bitand var.var1
For example: if var.var0 = 1000 and var.var1 = -1
var.var0 = 0000000000000000000001111101000b
var.var1 = 1111111111111111111111111111111b
var.var2 = 0000000000000000000001111101000b
BitOr
This operator may be used when it is desirable to OR each individual bit of a 32-bit parameter.
var.var2 = var.var0 bitor var.var1
For example: if var.var0 = 1000 and var.var1 = -10000
var.var0 = 0000000000000000000001111101000b
var.var1 = 1111111111111111101100011110000b
var.var2 = 1111111111111111101101111111000b
Label:
The Label: instruction is used in conjunction with the GoTo instruction to cause program flow to transfer to a specified
location within a program. The destination label is allowed to be above or below the GoTo instruction within the same
program. It is not possible to GoTo a label outside of the program containing the GoTo instruction, nor is it possible to use a
GoTo/Label: to exit out of a For Count/Next loop. In either of these conditions, a RedDot error will be generated.
The Label to which program flow transfers is a string of up to 50 characters in length and can be made up of any alphanumeric
character. The label name must not start with a number, and must end with a colon character ":". When using the Label:
instruction, a ":" will be automatically inserted for the user.
Labels are not case sensitive.
Examples:
Start:
Index.1.Initiate
Wait For Index.AnyCommandComplete
If (DriveInput.2 = ON) Then
GoTo Start:' Go to Start label if Input2 on
EndIf
DriveOutput.1 = ON
End
158
'seconds
'Repeat until the program is halted
'Incremental,Dist=25.250in,Vel=10.0in/s
'Turn Output 1 ON for 1 second, after the 'index reaches its' tar-
'seconds