Rockwell Automation 1772-AF3,D17726.5.2 User Manual AUX FUNCT PROM - Manual (Page 3)

Chapter
1
1Ć1
Introduction
The Auxiliary Function PROM (cat. no. 1772-AF3) lets you expand the
instruction set of your Mini-PLC-2/15 controller to include the file search and
file diagnostic instructions. These instructions are functionally similar to their
counterparts in the PLC-2/30 controller but their user-entered instruction format
is different.
For simplification throughout this manual we refer to the Auxiliary Function
PROM (cat. no. 1772-AF3) as the AF3 PROM.
You can use the AF3 PROM only with the Mini-PLC-2/15 processor module
(cat. no. 1772-LV) series A revision 11 or later, and series B revision 4; and
with the Industrial Terminal (cat. no. 1770-T3) (Table 1.A).
Table 1.A
AF3 PROM Response Controller
MiniĆPLCĆ2/15 Controller User Program 2K Words
Series Revision Read Write Erase [1]
A 6 and later Yes No No
B all Yes Yes No
[1] You can erase the 2K memory portion of the AF3 with ultraviolet light. However, the 2K memory for file
search and file diagnostic functions would be irretrievably lost.
The AF3 PROM has a 2K (16 bit) word memory into which you can transfer
your ladder diagram program (for backup memory), and a 2K word memory for
the file search and file diagnostic functions. You can transfer your program into
the AF3 PROM with series B controllers but not with series A controllers
(NO TAG). Mini-PLC-2/15 Processor EPROM (publication 1770-915)
describes how you transfer your program to the backup PROM.
NOTE: The AF1 is sensitive to ultraviolet light, therefore when exposed to uv
light, both the program and the auxiliary functions are erased. The AF1’s
transparent window is covered with the product label to avoid accidental
alteration of memory from uv light sources. Do not remove this label.
General