Compactlogix to Panelview Plus 600 Serial Comms

[pete3589 0]

All of the systems I have worked with have used ethernet communication to talk between the PV+ and the PLC. As an experiment (and maybe a permanent change) I was going to try set up serial comms through the DF1 port of the processor. On my test system I set the PLC ip using the DF1 port and a null modem cable (like usual). Then I was hoping to see the PLC in Linx via ethernet, which I now can. At this point I was hoping to connect the DF1 of the processor to the DF1 (or RS232) of the Panelview, and then see it via Linx when I expanded the DF1 port on the processor via the ethernet connection I had previously set up. At this point the DF1 port does not detect the Panelview and I am stuck. The system still wants to connect via the ethernet. I am not sure how to get them communicating. Are there settings in Linx I am missing? Am I using the right cable (null modem)? Can I do this with my existing setup or do I need more hardware?

[TechJunki 0]

What type of CPU are you using.. I assume you have already set up the serial communications on both sides to the same Baud Rate??

[pete3589 0]

Sorry for the lack of information. Yes both of the baudrates have been set to 19,200 and I am using a CompactLogix L35E processor. I almost want to say its cabling, since i see the channel 0 light flashing green on the processor, but I cant be sure since i dont have any other cables. These are the same cables I use when changing IP's on new panels that arrive. Any other suggestions would be helpful.

[pete3589 0]

There are a few strange things that I have noticed while trying to configure this. 1. On the panelview (PV+ 600) when I enter RS Enterprise Configuration I always need to restore the defaults since there is no tab for DFI or serial comms. After I do this, i set up the rates exactly as they should be but the list does not populate with the PLC information (processor etc etc). 2. If i try to restart, when I come back online the communications always revert back to the previous ethernet comms that were established before I restored the defaults on the HMI version of Enterprise. 3. On some of the knowledgebase articles such as this one Knowledgebase they show the device as PLC_CH0. I do not have this option when I configure my serial ports. I would assume that I would use the Logix choice, but I havent seen anyone ever refer to that.