Anyone have experience with the old SLC-500s?
I have one machine that is about 13 years old and I think they used a new old stock SLC-05/04 when they built it.
Anyway I had a battery error, which makes sense since the battery was very old, and I lost my program when I tried to replace it, which makes sense because the capacitor which is supposed to hold the charge is very old.
When I tried to re-download the program to the PLC, I could not connect, I realized my issue now was no null modem... and my driver not working on my RS-232 to USB converter.
My question is: What is the port above the DB-9 port used for?
It was labeled PROG, so when my DB-9 serial cable didn't work I tried a serial cable for a mitsubishi FX series on the top port... and.... my power supply died.
Is this a common thing on SLC-500 power supplies?
Can you short them by using the wrong cable?
The weird thing is the fuse on the front was not blown.
Is there a fuse inside I can get to and replace?
We are planning on just keeping this machine a few more years so we don't want to upgrade it.
The CPU was fine afterwards.
