Rockwell Automation 1772-AF4,D17726.5.3 User Manual, AUX FUNCT PROM - Manual (Page 3)

Chapter
1
1Ć1
Introduction
Installation of the Auxiliary Function (AF) PROM (cat. no. 1772-AF4 in your
Mini-PLC-2/15 controller lets you expand its mathematical capabilities.
For simplification, throughout this manual we refer to the Auxiliary Function
PROM (cat. no. 1772-AF4) as the AF4.
The AF4 can only be used with the series A Mini-PLC-2/15 processor module,
firmware revision 11 or later (cat. no. 1772-LV). The AF4 can only be used
with the series B Mini-PLC-2/15 processor module, firmware revision 4 or later.
Programming the AF4 functions with either series Mini-PLC-2/15 processor
module requires the Industrial Terminal (cat. no. 1770-T3).
The AF4 has a 2K (16 bit) word section to which you can transfer your program
(for backup memory) and a 2K word section for higher mathematical functions.
You can only transfer your program into the AF4 with the series B PLC-2/15
controller (Table 1.A). Series A Mini-PLC-2/16 Processor EPROM (publication
1770-91) describes program transfer to PROM. With the series A PLC-2/15
controller, program transfer to the AF4 is not possible.
Table 1.A
AF4 PROM Response Controller
MiniĆPLCĆ2/15 Controller
Series
User Program 2K Words
Read Write Erase [1 ]
A Yes No No
B Yes Yes No
[1] You can erase the 2K memory backup portion of the AF4 with ultraviolet light. However, the
2K section for higher mathematical functions would also be erased and all AF1 function
capabilities lost. Once erased, the AF4 functions are irretrievable.
NOTE: The AF4 is sensitive to ultraviolet (UV) light, therefore when exposed
to UV light, both the program and the auxiliary functions are erased. The AF4’s
transparent window is covered with the product label to avoid accidental
alteration of memory from ultraviolet light sources. Do not remove this label.
General