SLC500-Default program loaded at power interruption 1

[Electrifier]

Dears,

We have made some modifications in program of SLC500. It works normal after downloading but incase of any power interruption, modified program is washed and default program is loaded by itself. Checked after replacing internal battery result is same. Incase of any power interruption we need to download the modified program again. can some one give some help to remove this problem.

 

[djs]

Hello;
Several things to check for:
1. Besure that your battery is good and connected correctly
2. You may have an EPROM or EEPRM memory cartridge. You will need to reprogram this with your new program.

 

[atioln]

You probably have a eeprom installed and need to save your changes to the eeprom. If you do not want the program to load from the eeprom you can disable the Memory Module Loaded on Boot S:5/8 in the processor status file.

I am assume that the controller is a slc5/03 or newer. The above info may work for older processors also, but i am not sure.


BELOW IS SOME INFO FROM THE RSLOGIX HELP FILE.

If you have an EEPROM installed in your SLC 500 controller, you may configure your hardware to use it for program backup, allowing the EEPROM to automatically reload your project files if the SLC 500 memory is accidentally lost. The processor must be in the Program mode to burn an EEPROM.

You can burn a program into an EEPROM memory module using a processor that is different from the one used to run the program. When burning EEPROMs, keep the following conditions in mind:

An SLC 5/04 processor can only burn an EEPROM for another SLC 5/04.
An SLC 5/03 processor can only burn an EEPROM for another SLC 5/03.
An SLC 5/02 processor can only burn an EEPROM for another SLC 5/02.
Fixed and SLC 5/01 (1K) processors can burn an EEPROM for a SLC 5/01 4K processor as long as the program does not exceed 1K.
A fixed or SLC 5/01 processor can burn an EEPROM for any other fixed or SLC 5/01 processor as long as the program does not exceed 1K. (Exception: Using RSLogix 500 you cannot burn a fixed EEPROM in a 5/01 processor. This is only possible if you use AI500 software.)

The I/O and chassis configuration of the burning processor does not have to match the I/O configuration of the program being burned.
You do not have to enter the Run mode when burning an EEPROM. If you enter RUN and the chassis configuration does not match, a major fault occurs. If you burn an EEPROM while in the fault mode, the fault will also be saved in the EEPROM.

To Store an EEPROM

1 Go online with the SLC controller that has the EEPROM you want to store to (burn).
2 Select Comms > EEPROM > Store to EEPROM.
3 The SLC controller burns the EEPROM.

To Read a Project from EEPROM

1 Go online with the SLC controller that has the EEPROM you want to read.
2 Select Comms > EEPROM > EEPROM.
3 The SLC controller reads the EEPROM into its RAM.

RSLogix 500 - Copyright Rockwell Software 2000, 2001

 

[lenoble]

you have an eeprom installed, you can either save the changes you made to the eeprom or disable the transfer from memory to processor by setting s1:8 s1:10 s1:11 and s1:12 to 0