RY_Guthrie
Member
i am using modbus pol to trouble shoot a modbus comms issue. I have device communicating modbus over rs485 going through a lantronix express DR which convert is to modbus over tcp/ip. I can read the data fine on the rs-485 side and to the best of my knowledge the Lantronixs is setup correctly??? I dont have the software to check it. But when i connect modbus pol to the ethernet side I get Insufficient bytes received? I have tried multiple setting in modbus pol with no luck. I have the correct IP as I can ping the lantronix. I am leaning toward a lantornix config issue, but I have little experience with these devices so I was wondering what that error message even means. MOdbus pol gives no explanation in the users manual. Thank you for any advice!! Also is there somewhere online where you can download the lantornix software as I dont have access to the DVD? tired there webs site with no luck.