ATI
MetriNet Ethernet/IP Communications Manual
11
O&M Manual
Rev-A (6/19)
1.7
Loading EDS File
The EDS file will specify many of the parameters for reading and writing the proper
registers in the MetriNet. It must first be loaded into server in control of the
network. This can vary widely depending on the tools, but here is an example
using Rockwell’s library “EDS Hardware Installation Tool.”
1-Launch the EDS tool and select “Add” to start the EDS Wizard for file
addition.
2-Select button for “Register a single file,” and browse to the file location for
the EDS file “ATI Q52x Transmitter EDS File.eds”
3-Follow though the screens to complete the addition, then exit the tool.
Now, the EDS file that is specific to the MetriNet is part of the Rockwell EDS
RSLinx library, and devices can be recognized when connected to the network.
1.8
PLC Object Generic Settings
PLCs handle this Ethernet/IP exchange in a wide variety of configurations, and the
basic configuration of a class 1 connection in every PLCs software is different, but
there should be a place to enter the following basic information.
Data Type: "INT" or "16-Bit"
Input T->O Assembly Instance: 0x65 or 101 decimal
Input T->O Size: 250 words (16-bit) or 500 bytes (8-bit)
Output O->T Assembly Instance: 0x66 or 102 decimal
Output O->T Size: 5 word (16-bit) or 10 bytes (8-bit)
Configuration Assembly Instance: 0x80 or 128 decimal
Configuration Size: 0
RPI Setting = 1000 mS or higher
This description represents the raw block of data in and out of the MetriNet, and
will take everything in 16-bit words (so you must parse out the 32-bit values shown
earlier.) The data typing and setting up of variables must all be done manually,
based on the values shown below in section 1.9. For more basic tools, like Molex-
EIP, that there may be an endian byte-swap occurring on each set of registers, so
you may have to byte swap each 16-bit register to recombine the data.
