Omron CS1W-213 - REV 02-2008, Operation Manual

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Procedure for Replacing a PCU Section 12-4
8. Transfer the saved parameters and operating data to the CPU Unit using,
for example, CX-Programmer.
9. Turn the PLC power OFF and back ON.
12-4-2 When PCU Parameters and Operating Data is Saved to the PCU’s
Flash Memory
1,2,3... 1. Make a note of the unit number of the PCU to be replaced.
2. Save the parameters and operating data for the PCU to be replaced to a
floppy disk or a hard disk using CX-Position.
3. Turn OFF the power supply.
4. Make a note of the way in which the PCU is wired. (It is recommended that
the cables are labelled.)
5. Replace the PCU, and reconnect the wiring as before.
6. Set the unit number for the PCU.
7. Turn ON the power supply to the PLC.
8. Transfer the saved parameters and operating data to the PLC using CX-
Position. After transfer, write the parameters and data to PCU’s flash mem-
ory.
9. Turn the PLC power OFF and back ON.