Upgrade GE PLC Series 6+ to higher

[Ahmad Ossama]

I have GE plc series 6 and I think it is about to die so I want to upgrade it to higher one so what is the suitable PLC that works with the old drives, blocks, ... etc and how much the "average" cost of this upgrade? 

[Steve Bailey]

If you plan to stay with GE, the Rx3i is the current product. You will have to rewrite the program as there is no translator. Be careful about doing a rung-by-rung translation as there are several typical constructions in a Series Six that perform the operations now done in function blocks. For example there are standard rungs of ladder logic to demultiplex analog input signals which will not be needed in the new PLC and similar sets of rungs for analog outputs.

Your local GE supplier can give you prices for hardware.