jakeparsons03
Member
I am communicating from a 1756 Control Logix to a Grundfos pump skid via the Grundfos CIM-500 expansion card. I have never done Ethernet/IP comms to systems that don't have AOPs before so this is all new to me. Right now I am trying to set up this device in my IO tree.
In doing this, I have a handful of questions.
1- I know that I need Input/Output/Configuration data size. My technical specs document gives me 505 bytes out/509 bytes in/ max 255 bytes IO data per assembly. If we are dealing with 32 bit sizes (according to the generic ethernet module) then I have to divide the bytes by 4 and it doesn't come out to a whole number. Also not sure where the assembly instance falls into that or really what that is.
2 - What is the difference between the ETHERNET-MODULE and the ETHERNET-BRIDGE devices.
In doing this, I have a handful of questions.
1- I know that I need Input/Output/Configuration data size. My technical specs document gives me 505 bytes out/509 bytes in/ max 255 bytes IO data per assembly. If we are dealing with 32 bit sizes (according to the generic ethernet module) then I have to divide the bytes by 4 and it doesn't come out to a whole number. Also not sure where the assembly instance falls into that or really what that is.
2 - What is the difference between the ETHERNET-MODULE and the ETHERNET-BRIDGE devices.