Rockwell Automation 1752-L24BBBE SmartGuard 600 Controllers User Manual - Manual (Page 170)

170 Rockwell Automation Publication 1752-UM001E-EN-P - June 2014
Chapter 12 Monitor Status and Handle Faults
Alphanumeric Display The controller’s alphanumeric display provides DeviceNet error codes,
DeviceNet node address, and EtherNet/IP address information. Under normal
operating conditions, the display shows the node address of the module, 00…63
in decimal format. If the controller is operating in a standalone configuration
(not networked), the display shows ‘nd’. The display flashes when the controller is
self-testing, configuring, or in Idle mode. If a fault exists, the display alternates
between the error code and the node address where the error occurred. If a fatal
error has occurred, the display shows the error code only.
When the service switch is pressed, the display shows the controller’s safety-
configuration signature two digits at a time. The configuration signature can also
be viewed on the Safety tab of the Controller Properties dialog box in
RSNetWorx for DeviceNet software. You can use the configuration signature to
verify that the program and configuration of the controller has not been changed.
When the IP address display switch is pressed for 1 second or longer, the display
shows the EtherNet/IP address that is set. The error code ‘n4’ is displayed if an
error occurs in the EtherNet/IP configuration.
For a description of the combinations of the status indicators and alphanumeric
display codes, including corrective actions, see Appendix B.
Table 12 - Explanation of Display Operation
Status Display
Normal conditions with
DeviceNet enabled
Operating mode: Run
Safety I/O communication: operating
The controller node
address.
Lit
Operating mode: Run
Safety I/O communication: not operating
Flashing
Operating mode: Self-testing, Configuring, or Idle Flashing
Normal conditions with
DeviceNet disabled
Operating mode: Run
nd
Lit
Operating mode: Self-testing, Configuring, or Idle Flashing
Error conditions
Critical error Error code only Lit
Abort Error code only Lit
Nonfatal error
Alternates between the error
code and the node address where
the error occurred.