scientific

Previously I'm using a S5 135U PLC with 64K RAM, I got a spare 32K EPROM and I think to transfer the program from RAM to EPROM, because I knew that the program isn't so big, it is enough for a 32K EPROM. Any problem if I doing like this? The previous program need to modified due to different memory module?

I have a step5 v7.2 under XP, I tried to online with PLC, but was failed. Anyone know why? The screen show system message: 0334, what is this meaning?

If I writting a step5 program file (.s5d), then I want to write it into eprom, which size of eprom I need to use? How to check the program file size to suit the correct eprom?

I'm using STEP5 v6.3 under XP DOS Command Prompt, any problem? Yes, I still can upload and download the blocks, even checking the program online status. I'm using the switch to turn ON the CPU to RUN mode.

Current I have a Step 5 / ST Basic Package Version 6.3 running on Windows XP Laptop. When I using this Laptop to transfer s5 program to PLC, not problem during tranferring, but the PLC cannot go to RUN mode (green light). If I using a PG 710 to transfer the same program to this PLC, then OK. Is it any setting problem on the windows based Step5?