Baldor mn1854 manual Example of Hosted Mode, Program, Variable Names

[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:

SArithmetic

SConditional Expressions

SLoop Counts

SDistance and velocity commands

SSet values

SSet command values or parameters

SSet analog signals

SRead analog or temperature input

SDisplay information such as position or velocity

SAny 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.

MN1854 Keypad Programming 6-25