Allen-Bradley ControlNet PLC-5 - ControlNet Cable System Components; Wiring Installation Compliance

Publication 1785-IN022C-EN-P - September 2005
38 Firmware Update Instructions for Ethernet, Enhanced and ControlNet PLC-5 Programmable Controllers
Step 4 - Install the New Firmware EPROMS (if applicable)
Note: Do not reinstall the controller until you complete the next step.
On the ControlNet PLC-5 Programmable Controllers, Series C and D: Do this:
1785-L20C, -L40C, -L60C, -L80C, -L20C15, -L40C15, -L60C15, and L80C15 programmable
controllers
1. On the front of the controller, remove the
screw on the communication card.
2. Gently pull the communication card out of
the controller chassis.
3. Remove and replace the U7 or U12 EPROM,
taking note of the location number and the
orientation of the notch in the EPROM.
4. See the figure to the left for the location of
the EPROM.
9. Reassemble the controller by reversing
steps 1 thru 3.
On the ControlNet PLC-5 Programmable Controllers, Series E and F: Do this:
1785-L20C, -L40C, -L80C, -L20C15, -L40C15 and L80C15 programmable controllers 1. On the front of the controller, remove the 2
hex nuts on Channel 0.
2. Remove the screw on the communication
card.
3. Remove the four screws that hold the right
side plastic
cover and remove the cover.
4. Remove the two large screws and washers
located in the center of the exposed circuit
board.
5. Carefully separate the two processor
boards by pulling the exposed circuit board at
the backplane edge connector away from the
metal cover as you would open a book.
6. Gently pull the communication card off of
the circuit board.
7. Remove and replace the U7 or U12 EPROM,
taking note of the location number and the
orientation of the notch in the EPROM.
8. See the figure to the left for the location of
the EPROM.
9. Reassemble the controller by reversing
steps 1 thru 6.
* EPROM numbers may vary and their locations shown in these illustrations are approximate. Your series and revision of controller and firmware may be different. Make certain the EPROM numbers
from your firmware update match the numbers on their respective circuit boards and communication cards.
U7 or U12*
Remove communication card
U7 or U12
Remove communication card
(if applicable)*