Omron TJ2-MC64 - PROGRAMMING - Page 164

BASIC commands
PROGRAMMING MANUAL 158
Revision 1.0
3.2.217 ON.. GOTO
/i
3.2.218 OP
/i
Description The ON..GOSUB and ON..GOTO structures enable a conditional jump. The
integer expression is used to select a label from the list. If the expression has
value 1 the first label is used, for value 2 the second label is used, and so on.
Once the label is selected, subroutine GOSUB jump to that label is per-
formed.
Note: If the expression is not valid e.g. the result of the expression is less than
1 or greater that the number of available labels in the program, no jump is
performed.
Arguments • expression
Any valid BASIC expression.
• label
Any valid label in the program.
Example REPEAT
GET#5,char
UNTIL 1<=char and char<=3
ON char GOSUB mover, stopper, change
See also GOSUB..RETURN, GOTO.
Type Program control command
Syntax ON expression GOTO label [,label[,...]]
Description The expression is evaluated and then the integer part is used to select a label
from the list. If the expression has the value 1 then the first label is used, 2
then the second label is used, and so on. If the value of the expression is less
than 1 or greater than the number of labels then an error occurs. Once the
label is selected, subroutine GOTO jump to that label is performed.
Arguments • expression
Any valid BASIC expression.
• label
Any valid label in the program.
Example REPEAT
GET #1,char
UNTIL 1<=char and char<=3
ON char GOTO mover,stopper,change
See also N/A
Type I/O command
Syntax OP(output_number, value)
OP(binary_pattern)
OP
Description The OP command sets one or more outputs or returns the state of the first 24
outputs. OP has three different forms depending on the number of argu-
ments.
•Command OP(output_number,value) sets a single output channel. The
range of output_number depends on the number of additional digital I/O
connected over the MECHATROLINK-II bus and value is the value to be
output, either 0 or 1.
•Command OP(binary_pattern) sets the binary pattern to the 24 outputs
according to the value set by binary_pattern.
•Function OP (without arguments) returns the status of the first 24 out-
puts. This allows multiple outputs to be set without corrupting others
which are not to be changed.
Note: The first 8 outputs (0 to 7) do not physically exist on the TJ2-MC64.
They can not be written to and will always return 0.
Arguments • output_number
The number of the output to be set. The range for this parameter
depends on the number of additional digital I/O connected over the
MECHATROLINK-II bus. If there are no digital I/O connected, the range
for this parameter is 8..31
• value
The value to be output, either OFF (0) or ON (1). All non-0 values are
considered as ON.
• binary_pattern
The integer equivalent of the binary pattern is to be output.
Example OP(12,1)
OP(12,ON)
These two lines are equivalent.