Rockwell Automation 1771-DB BASIC MODULE - Manual (Page 62)

Chapter
Installing and Replacing Components 3
3 -10
4. Remove the battery and insert a fresh one. Make sure you install the
battery in the correct orientation.
+ –
5. Replace the battery cover.
6. Reassemble the BASIC module. If you need further instructions to
complete this step, see page 3 -11.
7. Make sure jumper JW7 is enabled (page 1 -9).
8. Replace the BASIC module into the I/O chassis. If you need further
instructions to complete this step, see page 1 -12.
The BTLO LED indicator light should go out.