Rockwell Automation GMLC Reference Manual - Manual (Page 349)

Publication GMLC-5.2 - November 1999
312 I/O and Event Blocks
Once the stop is engaged, the axis position is then re-defined to be the
known position of the stop and the motion is stopped.
Watch Control
Use the Watch Control block to:
•
Arm a watch position event to occur when the selected physical or
imaginary axis reaches the setpoint position. (See Arm Watch
Position.)
• Disarm a previously armed watch position event that has not yet
occurred. (See Disarm Watch Position.)
• Arm a registration event to store the actual positions of all physical
and virtual axes, and the command position of the imaginary axis on
the specified edge of a dedicated high-speed registration input. (See
Arm Registration.)
• Disarm a registration event, which has not yet occurred. (See Disarm
Registration.)
• Enable a watch position event to occur in response to a setpoint
position event. (See Enable Watch Position Event/Action.)
• Enable a dedicated or configured input event to occur in response to a
setpoint position event. (See Enable Input/Event Action.)
• Disarm an event or action, enabled by a previous watch control block,
which has not yet occurred. (See Disarm Input/Event Action.)
The watch control block resides on the Main Palette.