Allen-Bradley PLC-5 Installation Instructions

Using These Instructions
Before You Install ...
Allen-Bradley Replacements
Enhanced PLC 5
Programmable Controller
Firmware Upgrade
(Catalog Numbers 1785-L11B, -L20B, -L30B,
-L40B, -L40L, -L60B, -L60L, -L80B)
These instructions describe:
For more information about PLC-5 processors, see the Enhanced and
A B Ethernet PLC-5 User Manual, publication number 1786-6.5.12. For
more information, contact your Allen-Bradley service representative.
Printed circuit board components and Programmable Read-only
Memory (PROM) devices can be damaged during routine handling
and installation. Follow these precautions to reduce static electricity
discharges before you upgrade the processor firmware.
an important safety precaution involving static electricity
discharges
how to upgrade the processor firmware
Handle the printed circuit boards and PROMs by the case or
carrier without touching the pins or the edge connector.
Use a static-free workstation.
Connect the static-free workstation to ground through a minimum
200K ohm resistance.
Wear a grounded, conductive wrist strap with a minimum 200K
ohm resistance.
Ground all tools before you begin to upgrade the firmware.
Control the relative humidity of the installation area – ideal
conditions are 40% to 60% relative humidity.
Installation Instructions
Publication1785 5.13 April 1996