Programming flash memory for SLC 5/03

xautom · Sep 18, 2008

I'm new with allen brandley plc. i've programmed a slc 5/03 and works properly but when the power goes down it loads an old programm propably from the flash memory.I'm reprogramming and works good.After a power fail it loads again an old programm which has a different operation.So, how i can programm the flash memory of this CPU?Does the battery to be changed?

bernie_carlton · Sep 18, 2008

While online, with your desired program loaded, look under COMMS - EEPROM. If enabled you can store the program to the onboard EEPROM.

xautom · Sep 18, 2008

menu "store to eeprom" and "load from eeprom" are disabled!
i can't make any action.

bernie_carlton · Sep 18, 2008

The I'm guessing you have a UVEPROM or some other type memory that is not programmable by the CPU installed.

rdrast · Sep 18, 2008

bernie_carlton said:
The I'm guessing you have a UVEPROM or some other type memory that is not programmable by the CPU installed.

Bernie, I don't recall, but I thought that CPU has to also be in program mode (not RUN) to enable EEPROM transfer?

Also, if I recall correctly, on the SLC's, there is a switch on the processor that has to be enabled to allow writes to an EEPROM module.

Mickey · Sep 18, 2008

Are you online?

xautom · Sep 18, 2008

so, how i can solve this.at any power fail, cpu loads an old programm thas isn't suitable for my aplication.
Does the jumper J4 maybe will allow me to programm the flash memory if i turn from protected situation to programm situation?
thank you for your answers!

LJBMatt · Sep 18, 2008

There are S: bits in the processor setup that you can uncheck so that the PLC does not load from memory on error or power up.

Mickey · Sep 18, 2008

xautom said:
so, how i can solve this.at any power fail, cpu loads an old programm thas isn't suitable for my aplication.
Does the jumper J4 maybe will allow me to programm the flash memory if i turn from protected situation to programm situation?
thank you for your answers!

J4 (jumper) has nothing to do with the memory module. Its there to protect the processors operating system from being overwritten.

See text below for procedure to write to memory module ( its as bernie says).
If you don't want the memory module then power down and remove it. Set status bits to proper settings.

xautom · Sep 18, 2008

Thank you for your repliess,
i will try tomorrow to burn the eeprom with an another processor which i have as a backup and hope to solve the problem.

Mickey · Sep 18, 2008

rdrast said:
Bernie, I don't recall, but I thought that CPU has to also be in program mode (not RUN) to enable EEPROM transfer?

Yes see link below

http://rockwellautomation.custhelp.com/cgi-bin/rockwellautomation.cfg/php/enduser/std_adp.php?p_faqid=45038&p_created=1192738853&p_sid=*2BSAbej&p_accessibility=0&p_redirect=&p_lva=&p_sp=cF9zcmNoPTEmcF9zb3J0X2J5PSZwX2dyaWRzb3J0PSZwX3Jvd19jbnQ9MTY5LDE2OSZwX3Byb2RzPTAmcF9jYXRzPTAmcF9wdj0mcF9jdj0mcF9zZWFyY2hfdHlwZT1hbnN3ZXJzLnNlYXJjaF9ubCZwX3BhZ2U9NCZwX3NlYXJjaF90ZXh0PWVlcHJvbQ**&p_li=&p_topview=1

http://rockwellautomation.custhelp....ubCZwX3BhZ2U9NCZwX3NlYXJjaF90ZXh0PWVlcHJvbQ**

bkottaras · Sep 18, 2008

LJBMatt said:
There are S: bits in the processor setup that you can uncheck so that the PLC does not load from memory on error or power up.

Under Processor Status -> Mem Module (tab) select which bits will work for you.
This will enable/disable the Memory Module load at start up as well as a couple more things if needed.
You will need to do a download to activate your changes.

Programming flash memory for SLC 5/03

xautom

Member

bernie_carlton

Lifetime Supporting Member + Moderator

xautom

Member

bernie_carlton

Lifetime Supporting Member + Moderator

rdrast

Lifetime Supporting Member

Mickey

Lifetime Supporting Member

xautom

Member

LJBMatt

Member

Mickey

Lifetime Supporting Member

xautom

Member

Mickey

Lifetime Supporting Member

bkottaras

Member

Similar Topics