User manual

186 Rockwell Automation Publication 1756-UM001O-EN-P - October 2014
Appendix A Troubleshoot the Module
1756-L7x Controller Status
Display and Indicators
The 1756-L7x controllers have four status indicators and one four-character
scrolling status display.
Figure 47 - 1756-L7x Status Display and Indicators
1756-L7x Controller
Status Display
The 1756-L7x controller status display scrolls messages that provide information
about the firmware revision, ESM status, project status, and major faults of the
controller.
General Status Messages
The messages that are described in Tab l e 4 8 are typically indicated upon
powerup, powerdown, and while the controller is running to show the status of
the controller and the ESM.
Scrolling Status Display, see page 186
Status Indicators, see page 195
Table 48 - General Status Messages
Message Interpretation
No message is indicated The controller is Off.
Check the OK indicator to determine if the controller is powered and determine the state of the controller.
TEST The controller is conducting power-up tests.
PASS Power-up tests have been successfully completed.
SAVE A project is being saved to the SD card. You can also view the SD Indicator
(see page 195) for more status information.
Allow the save to complete before:
• removing the SD card.
• disconnecting power.
LOAD A project is being loaded from the SD card at controller powerup. You can also view the SD Indicator
(see page 195) for more status information.
Allow the load to complete before doing the following:
• Removing the SD card
• Disconnecting power
• Removing the ESM module
UPDT A firmware upgrade is being conducted from the SD card upon powerup. You can also view the SD Indicator
(see page 195) for more status information.
If you do not want the firmware to update upon powerup, change the Load Image property of the controller.
CHRG The capacitor-based ESM is being charged.
1756-L7x/X The controller catalog number and series.
Rev XX.xxx The major and minor revision of the firmware of the controller.