EEPROM Memory Module
Product Data
4
You can duplicate and transfer your ladder diagram program from
processor CMOS RAM to the EEPROM module when the processor is in
remote program mode. Use the following steps:
If you have already inserted the programming plug (jumper) onto your
EEPROM module and installed the EEPROM module in the processor,
skip steps 1 thru 8. Inserting the jumper allows you to program the
EEPROM module, removing the jumper guards against changes after you
have programmed the EEPROM module.
CAUTION: Be sure that you have supported the processor’s
memory using a back-up battery before turning off power to
your processor. Otherwise, you may lose processor memory.
1.
You may omit this step if your processor’s memory is supported by
the self-contained lithium battery.
Connect an Auxiliary Battery Pack (cat. no. 1771-BB) to the
processor INTFC port using the Mini-Processor Transport Cable
(cat. no. 1772-CD) to guard against loss of memory when removing
power from the processor.
2.
Turn off all power to the 1772-LSP processor and/or to the I/O
chassis Power Supply Module (cat. no. 1771-P3, -P4, -P5).
WARNING: Avoid touching the screw terminals of the power
cable on the lower front of the processor or power supply
module when the power cable is connected to a power source.
Touching an exposed 120V AC conductor can cause a lethal
shock.
3.
Remove the power cable from the power source and then from the
Processor (cat. no. 1772-LSP, only).
4.
Remove the processor from the I/O chassis and place it on a bench
top, battery label facing up.
5.
Holding the back-up EEPROM module with the catalog label up,
insert a programming plug (jumper) on the pair of pins at the upper
right-hand corner.
6.
Insert the back-up EEPROM module into the bottom of the processor
(see Installation above). Then, insert the processor into the I/O
chassis.
EEPROM Programming