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Keypad Programming 6-25MN1854
[Move] VE4 DI10 OT01 GO OT10 Example of “Hosted” Mode
Program
In the program [Move], the maximum move velocity is set to 4, the command
incremental distance is set to 10, output 1 and output 2 are turned off and on
simultaneously, axis one then moves 10 units. After axis one stops moving, output
1 is turned on and output 2 is turned off. These changes of outputs 1 and 2 occur
at the same time.
The flow of the program is controlled with WT (wait for an event or condition to
occur), TD (wait for a pre–set amount of time to elapse), and IF (if a certain
condition is true at this instant, then execute a block of commands) statements.
External controllers such as PLC and computers can be coordinated by the digital
outputs and ASCII serial commands. The commands that can be entered from the
keypad and used in a program are listed in Table 6-1.
Variables Memory space allows for up to 100 variables. All variables are stored as fixed
point numbers. All variables are global. All standard variables are volatile, though
non–volatile variables are available as well. Variables can be used in many parts
of the program, such as:
S Arithmetic
S Conditional Expressions
S Loop Counts
S Distance and velocity commands
S Set values
S Set command values or parameters
S Set analog signals
S Read analog or temperature input
S Display information such as position or velocity
S Any place that a number can be used, a variable can be used
Variable Names
Descriptive variable names can be assigned, instead of V1, V2, etc. Variable
names can be up to 14 characters, but the first 10 characters must be unique. A
name can contain other printable ASCII characters, such as numbers,
underscores, exclamation points, even spaces. Upper and lower case characters
are supported within variable names, and these variable names are case
sensitive. ASCII control characters such as LF and CR are not supported. All
variables must be enclosed in parentheses, (variable name). Parentheses are not
legal variable characters.