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6 DriveProgramming Commands
DriveProgramming User’s Manual (I622-E1)
6-4 Program Control Commands
6
Example
While/Wend
Command Description Argument
Executes <command set> while a condition is
met.
Condition
: a comparison between two variables
or constants with the format <left hand value>
<comparison operator> <right hand value>.
• Left hand value: any variable or constant
(range −128 to 127)
• Comparison operator: =, <, >, <=, >=, or <>
• Right hand value: any variable or constant
(range −128 to 127)
Command set: one or more commands until
the “wend” command. It can contain nested
commands (up to eight levels).
Format
Flowchart method Text language method
while <condition>
<command set>
wend
Flowchart Text
Block number
Operation
1 to 4 If X(00) is 1, it adds 1 to U(01), waits for 1.00 second with the “wait” command, and jumps to the
“while” command. If X(00) is not 1, it executes the next command after the “wend” command.
5 Jumps to the block 1: loop_ unconditionally.
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