Rockwell Automation GMLC Reference Manual - Manual (Page 326)

Publication GMLC-5.2 - November 1999
Chapter
11
I/O and Event Blocks
I/O and Event blocks control discrete I/O as well as registration, timer,
and position events. The following table presents the icons for each block
in this category along with a brief description. More detailed descriptions
of the blocks are contained on the pages following this table.
Use this block: To:
Directly and immediately turn on or turn off a single Flex I/O, general
purpose, RIO, SLC, or AxisLink discrete output.
• Enable an output cam (also known as a programmable limit
switch).
• Disable an output cam enabled by a previous Output Cam block.
• Pause the current task until a selected input is on (Wait for Input
On) or off (Wait for Input Off).
• Branch program flow to the 1 (true) node at the top of the block if
input is on, or to the 0 (false) node at the bottom of the block if
input is off (If Input).
• Pause the current task until the status of a selected axis’ or
interpolator is true (Wait for Axis).
• Monitor the status of an axis or interpolator. Program flow
branches to the:
•Top (true) node of the block if the selected axis or interpolator
status matches the actual status
•Bottom (false) node of the block if the selected status does not
match the actual status (If Axis).