RevPi Connect
Posted: 23 Aug 2018, 15:29
Hello,
I am just getting started trying to integrate the new RevPi connect into some existing control systems that have a few modbus rtu slave devices. I have the connect communicating through VNC and set up no problem. I was getting ready to go through the Modbus-Jessie tutorial. My problem is I am unfamiliar with your rs-485 pin naming convention. I can recognize one of the symbols as ground, one as (maybe) shield, then N and P. I was hoping that these would be labeled a,b, V+, gnd. I have not been able to find any mention of that particular naming scheme in any of the rs-485 standards manuals (so far). Any clarification on this would be much appreciated.
I am just getting started trying to integrate the new RevPi connect into some existing control systems that have a few modbus rtu slave devices. I have the connect communicating through VNC and set up no problem. I was getting ready to go through the Modbus-Jessie tutorial. My problem is I am unfamiliar with your rs-485 pin naming convention. I can recognize one of the symbols as ground, one as (maybe) shield, then N and P. I was hoping that these would be labeled a,b, V+, gnd. I have not been able to find any mention of that particular naming scheme in any of the rs-485 standards manuals (so far). Any clarification on this would be much appreciated.