Yaskawa SMCGUI-THK1 - Manual (Page 18)

14
Sequence Events
Start By Events: Expression, Input, and Variable
• Start by Expression must be valid comparison expressions in
the form of x=2, y>7, or similar items that evaluate to Boolean
true or false. This is an advanced event allowing anything to be
specified, and is NOT checked for errors. If unsure, avoid using
this event.
• Start by Input asks the user to specify an input number and
state or transition of the input. Valid input numbers are from
1~7 (and 2000~2255 if using Ethernet I/O). Specifying a state
will cause the sequence to run when the input is On or Off,
while specifying a transition will wait until the edge or change
of the input occurs.
• Start by Variable requires the user to enter a variable name
and value. Valid variable names are 1 to 8 characters in length,
case sensitive, and accept alphanumeric characters and the
underscore. The value entered is the value that will cause the
sequence to run.
The user adds the remaining events as needed to form the custom
sequence required for the application.
Change Events: Accel and Speed
These events are useful for changing values while moving.
• Change Accel allows the user to specify a new acceleration.
• Change Speed allows the user to specify a new speed.
Loop Events: Expression and Fixed Number
A Loop event will cause the program to loop back to a previous
labeled event.
An event is labeled by entering a name for the event in the
response column on the row of the event name. The Loop event
will only allow program flow to return upwards. Program flow
cannot be returned to the start event, or within a Move Start,
Move End pair.