OMRON C28K replacement for same

[cyriusPLC 0]

We have a machine that its' C28K output lines are starting to get burned. We suspect the whole unit will die soon. I would like your help with: 1. My PLC model is C28K-CDR-A 22Z5C. I've seen some models on Ebay with different codes following the CK28 like C28K-CA51-A for instance. Would they be compatible??? 2. Would the LK201 host model along with the Cable C500-CN220-EU (these models were taken from others forum posts) work with my C28K PLC? I plan to make my own cables though, but I am concerned for the LK201 which I will buy from Ebay too. 3. I would like to backup the actual program the machine is using. Would the LSS or the SYSWIN would do the job? 4. Is there a possibility that this program would have a password??? Thank you... Edited 15 Apr 2005 by cyriusPLC

[ECSI 17]

Your C28K-CDR-D has 16 DC inputs and 12 relay outputs and is AC powered. If you are going to get a replacement I would look for a CPM1A or CPM2A since they are newer models and you have a better chance of getting a good one on ebay. Any C28K that you buy is going to be quite old and you may run into the same problems that you are having now. I recommend a CPM1A-30CDR-A-V1. You can upload from the C28K using Syswin or CX-Programmer, change the processor type to CPM1A and download to the new unit. Yes, the C28K may be password protected. You won't know until you try it.

[bluebyu 4]

You will have to use LSS software or Syswin to talk to the C28, CX programmer will not do it.

[BITS N BYTES 66]

You say the output lines are getting flaky. Since you are using a relay output unit why not just replace the relays. If my memory serves me right the relays in the C28K series are socket mounted inside the unit. Its worth a try!!