Allen-Bradley ControlNet PLC-5 - Page 21

Publication 1785-IN022C-EN-P - September 2005
Firmware Update Instructions for Ethernet, Enhanced and ControlNet PLC-5 Programmable Controllers 21
Enhanced PLC-5
Programmable Controllers
- Series A thru D
To update these series of Enhanced PLC-5 firmware, you must replace the
applicable EEPROMS. To start this firmware update, follow these steps:
Step 1 - Prepare the PLC-5 Programmable Controller
1. Save the controller’s processor memory to your hard disk or to an
EEPROM.
2. Disconnect all cables (serial, DH+, ControlNet, Ethernet, etc.) from
the
controller.
3. Remove power from the controller and remove it from the chassis.
4. Remove the controller battery cover and disconnect the battery.
5. If applicable, disconnect the coprocessor or Ethernet Interface sidecar
module.
ATTENTION
You must save the controller’s processor memory to
your hard disk or to an EEPROM. If you do not, the
controller’s user memory will be lost because the
firmware update procedure erases memory.
Allen-Bradley Motors