Delta RMC151 - Manual (Page 584)

RMC70/150 and RMCTools User Manual
6.11.8. Using Schneider Electric PLCs via EtherNet/IP
I/O
Several Schneider Electric PLCs support EtherNet/IP I/O communication via plug-in Ethernet
communication modules. This topic describes how to use Quantum 140 NOC 771 01, Premium
TSX ETC 101, and Modicon M340 BMX NOC 0401 Ethernet communication modules to
communicate with the RMC via EtherNet/IP I/O.
Determine I/O Data Locations in the RMC
EtherNet/IP I/O transfers data back and forth between the RMC and PLC at the Requested
Packet Interval (RPI). The user must specify which data items in the RMC should be sent
and received. Typically, this is data in the Indirect Data Map.
Set up the Indirect Data map so that one part contains all the data coming from the PLC
(Incoming Data), and another part contains all the data going to the PLC (Outgoing
Data). Make sure the Incoming and Outgoing Data areas in the Indirect Data Map do not
overlap.
The Outgoing Data typically includes RMC status items that the PLC always needs to keep
track of, such as actual positions and status bits.
The Incoming Data consists of items that the PLC needs to write to in the RMC. This is
typically variables and possibly command registers.
Note:
The Incoming and Outgoing Data locations need not be the Indirect Data Map. However, the
Indirect Data Map is usually the best choice. Other options are the Variable Table and the
command area.
Setting Up the RMC for EtherNet/IP I/O
Do the following in the RMC:
1. Set the RMC's IP Address
Set up the RMC's IP Address as for any Ethernet connection. See Setting Up the RMC
Ethernet for details.
2. Set Up the Indirect Data Map
Beginning at item 0 in the Indirect Data Map, choose the items for the Outgoing Cyclic
I/O Data.
At some location in the Indirect Data Map after the Outgoing Cyclic I/O Data area,
choose the items for the Incoming Cyclic I/O Data, that is, the items that will be sent
to the RMC from the PLC. If you are using another location for your Incoming Data,
such as the Variable Table or Command Area, you need not set up the Indirect Data
Map for the Incoming Data.
Example
If you have a 4-axis controller, you may wish to set up the Outgoing Data at the
beginning of the Indirect Data Map to include the Actual Position and the Status
Bits for each axis, in addition to information on Task 0, which perhaps runs your
user programs.
You may also wish to set the Incoming Data, starting at item 12 in the Indirect
Data Map, to go to 5 variables and some of the Axis 0 command registers. You
could then set up the Indirect Data Map like this:
564 Delta Computer Systems, Inc.