Watlow PPC-2000 - Manual (Page 168)

Chapter 4: Troubleshooting PPC-2000 User’s Guide
142 Watlow Anafaze Doc.# 30002-00 Rev 2.3
Firmware Installation Procedures
Changing the firmware on the processor module involves minor
mechanical disassembly and reassembly of the controller.
Appropriate precautions should be taken to prevent
electrostatic discharge damage to the electronic components.
Wear a grounding strap and place components on static-free
grounded surfaces only.
A small flathead screwdriver is needed.
All control parameters will revert to factory defaults when
installing a new flash memory chip containing controller
firmware. Take a “snapshot” of the current configurations
using AnaWin3 before removing the flash memory chip.
The flash memory chip also stores the logic program if one has
been programmed. After replacing a flash memory chip, the
logic program should be downloaded to the controller using
LogicPro.
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CAUTION! Be sure to take antistatic precautions.
1. Save snapshot. The logic program will be erased.
2. Power down the controller and system, including heaters
etc.
3. Remove the power connection to the processor module and
any cables between the modules and terminal boards.
4. Note and label cable locations.
5. Remove the PPC-2000 system from the DIN rail or panel.
6. Make sure the red top and bottom module latches on the
processor module are in the unlocked position (pushed
toward the back of the module.)