Rockwell Automation 1771-DB Basic Module User Manual - Series A - Manual (Page 22)

Installing the BASIC Module
Chapter 3
3–8
Figure 3.4
User PROM and Battery Holder
To replace the EPROM:
1. Turn the small screw in the socket just above the chip (figure 3.4) 1/4
turn counterclockwise.
2. Remove the old chip.
3. Insert the new chip with pin one down and the center notch down as
shown in the socket diagram.
4. Turn the small screw in the socket above the chip 1/4 turn clockwise.
5. Refer to the above section titled, “Configuration Plugs” for the proper
setting of the corresponding configuration plug.
Installing the User Prom
(continued)