Rockwell Automation 294D ArmorStart LT Distributed Motor Controller DeviceNet Version - User Manual - Manual (Page 245)

Rockwell Automation Publication 290E-UM001B-EN-P - June 2012 245
Appendix
C
Using DeviceLogix™
Introduction DeviceLogix is a stand-alone Boolean program that resides within the
ArmorStart LT. The program is embedded in the product so that there is no
additional module required to use this technology; DeviceLogix is programmed
using the Add-On Profile for RSLogix™5000.
In addition to the actual programming, DeviceLogix can be configured to
operate under specific situations. It is important to note that the DeviceLogix
program will only run if the logic has been enabled and unswitched power is
present. This can be done within the “Logic Editor.” The operation configuration
is accomplished by setting the “Network Override” and “Communication
Override” parameter. The following information describes the varying levels of
operation:
• If both overrides are disabled and the logic is enabled, the ONLY time
DeviceLogix will run is if there is an active I/O connection with a master,
i.e. the master is in Run mode. At all other times DeviceLogix will be
running the logic, but will NOT control the state of the outputs.
• If the Network Override is enabled and the logic is enabled then
DeviceLogix controls the state of the outputs when the PLC is in Run
mode and if a network fault occurs.
• If the Communications Override is enabled and the logic is enabled, the
device does not need any I/O connection to run the logic. As long as there
are switched and unswitched power sources connected to the device, the
logic will control the state of the outputs.
DeviceLogix Local Control Mode
In local control mode, the embedded DeviceLogix logic engine drives the local
outputs and motor run/jog commands from a local DeviceLogix program. Local
Control is completely independent of the any or all CIP connections. I/O
and/or Explicit Message connections can exist in any state and they do not affect
the user outputs or the run/jog commands for the motor. Local control mode is
chosen by when the keypad “Auto LED” is on, “Network Override” is set
“Communication Override” is set, and DeviceLogix is enabled.
I/O Networked Control Mode
In I/O networked control mode, local outputs and motor run/jog commands are
received over a CIP I/O connection in the established state. I/O networked
control mode is chosen when DeviceLogix is disabled, or when DeviceLogix is
enabled and no user outputs or run commands are being driven in the
DeviceLogix program.