Good morning. I notice there was some previous posts about this subject with Logix 5000. Would anyone happen to have any info or examples using 500 with a RS232 port off the processor? I am looking for string file programming examples. We are setting up a system with a R2000iA robot and a rotating unit to stamp scuba tanks. I have to provide 8 characters for a lot number that changes characters every 202 pieces. Any help would be greatly appreciated, thanks, Chris.