Operation
Controls and Indicators
252 MagneMotion
Rockwell Automation Publication MMI-UM007F-EN-P - September 2020
Light Stacks
When using a node controller with digital I/O, the node controller can be connected directly to
a light stack. A light stack is a user-installed visual signal that is used to provide transport sys-
tem status. The QuickStick HT transport system supports standard three color light stacks
(typically green, yellow, and red). The light stack can be used to monitor the status of any, or
all, paths on the node controller where it is connected. See the Node Controller Hardware
User Manual, MMI-UM013, for additional details and equivalent circuits. See the QuickStick
Configurator User Manual, MMI-UM009, to configure the QSHT transport system to use a
light stack.
FastStop
The host controller can send a FastStop command to the node controller, on a per-path basis.
This command suspends all motion on the specified paths. Vehicles immediately decelerate
with maximum thrust opposing their motion. Previously commanded motion does not resume
until a Resume Motion command is received. The control loop is still enabled while motion is
suspended holding all vehicles in place. See the Host Controller TCP/IP Communication Pro-
tocol User Manual, MMI-UM003, or the Host Controller EtherNet/IP Communication Proto-
col User Manual, MMI-UM004 for details on the use of the FastStop command.
Digital I/O
When using a node controller with digital I/O, digital inputs and outputs can be monitored and
controlled, respectively. These circuits can be wired directly to the digital I/O terminals on the
node controller. The host controller can then issue commands to set the value of the digital
outputs, or read the value of the digital inputs. See the Node Controller Hardware User Man-
ual, MMI-UM013, for additional details and equivalent circuits. See the Host Controller
TCP/IP Communication Protocol User Manual, MMI-UM003, or the Host Controller Ether-
Net/IP Communication Protocol User Manual, MMI-UM004 for details on the use of the dig-
ital I/O commands.
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