Rockwell Automation 1772-AF3,D17726.5.2 User Manual AUX FUNCT PROM - Manual (Page 7)

Installation/Removal Precautions
Chapter 2
2Ć2
The position of the notch on the AF3 PROM, when installed, must correspond
to the position of the notch shown on the label (Figure 2.2).
Figure 2.2
AF3 Installed
PROM Installation
Release
PROM
Notch
Lock
OFF
ON
11590
1772ĆAF3
DO NOT
ERASE
UP
To install the AF3 PROM, perform the following steps:
1. Turn the mode select switch to PROG position.
2. To maintain processor memory contents, connect an external battery pack
(Figure 2.3) to the processor with the Mini-Processor Transport Cable (cat.
no. 1772-CD).
Figure 2.3
External Battery Backup
MiniĆPLCĆ2/15 Processor
(Cat. No. 1772ĆLV)
Battery Pack
(Cat. No. 1771ĆBB)
MiniĆProcessor
Transport Cable
(Cat. No. 1772ĆCD)
11182
3. Remove AC power from the I/O chassis.
4. Remove the processor module from the I/O chassis.
5. Check all AF3 PROM pins to ensure they are not bent or contaminated.