hey thanks WIZARD... yup, my bad... i actually meant the Hardware configuration updates. I can configure it now and can do the normal programming. HOWEVER, i've encountered an error when i'm trying to Download my project to the PLC:

-----------------------
Date: 04/23/2007 time: 04:52:17 PM
Compile:
test2\SIMATIC 300(2)\CPU 313C-2 DP\Connections
-> Object was compiled without errors

Date: 04/23/2007 time: 04:52:22 PM
Download:
test2\SIMATIC 300(2)\Hardware
-> Error occurred downloading the object

The block/op. sys. update is too large.
Cannot load SDB 4.
The system data cannot be loaded to module CPU 313C-2 DP - (R0/S2) of station SIMATIC 300(2).
Look under details or try to determine the cause for the problem using the diagnostic buffer of the module.
-----------------------------------


It's a basic program just to test my CPU, OB1 with no ladder in it. I don't have any Siemens MMC installed on the CPU. I guess I need an MMC in order to operate the CPU, problem is at the moment i dont have one.

I have1 question:

*** IF I DONT HAVE A SIEMENS MMC, CAN I USE THE NORMAL MMC, IF YES WHAT 'TWEAKING' SHOULD I DO? (coz i tried putting a normal, FAT/FAT32 formatted MMC but whenever i do this and the MMC installed on the CPU, the PC cannot even communicate with it, "no connection".



Pardon me for this long paragraphs, i hope SOMEONE answers.

Hello dears

I am looking for GSD file

CPU312C : 312-5BD01-0AB0

I couldn't find it in Tia Portal V16

Warda31

Hello dears

I am looking for GSD file

CPU312C : 312-5BD01-0AB0

I couldn't find it in Tia Portal V16

 That PLC is too old for your TIA version. Controllers can't be configured with GSD/GSDML.