Delta RMC101 - Manual (Page 330)

RMC100 and RMCWin User Manual
5-80
N232:0-
N255:255
Plot data for axis 7
5.2.6.1.3 Using EtherNet/IP with the ControlLogix
The ControlLogix PLCs support EtherNet/IP through the 1756-ENET/B and 1756-ENBT/A
modules. EtherNet/IP is an exciting and innovative Ethernet protocol. This protocol is an open
protocol managed by the Open DeviceNet Vendor Association (ODVA), ControlNet International,
and the Industrial Ethernet Agency (IEA).
EtherNet/IP is innovative in that it combines the traditional messaging services with higher-
performance and more deterministic I/O services. Messaging can be used to send arbitrary data
between two devices using a request/response protocol. I/O is used to set up a specialized high-
speed connection between two or more devices using the producer consumer model.
For more information on EtherNet/IP refer to Rockwell Automation's EtherNet/IP Performance
and Application Guide
(Pub. No. ENET-AP001C-EN-P), or visit the EtherNet/IP web site at
http://www.ethernet-ip.org, where the specification and example source code can be downloaded
for free.
Messaging through EtherNet/IP uses the standard Message (MSG) block, as described in Using
Allen-Bradley Controllers with the RMC Ethernet Module. I/O connections are described in detail
over a number of topics starting with Using EtherNet/IP with the RMC ENET. Refer to these
topics for more details.
5.2.6.2 Automationdirect.com's DL205/305
5.2.6.2.1 Using Automationdirect.com PLCs with the RMC ENET
DirectLogic PLCs from Automationdirect.com (formerly PLC Direct) can be used to control the
RMC over Ethernet. Currently two families of DirectLogic PLCs have Ethernet modules available
to them: the DL205 and the DL405. The DL205 requires the H2-ECOM Ethernet module, while
the DL405 requires the H4-ECOM. Both Ethernet modules are also sold through
Automationdirect.com.
Note: Ethernet communication with the DirectLogic PLCs and ECOM modules requires RMC
ENET firmware dated 20000913 or later.
As of this writing, the DL205 family includes the D2-230, D2-240, and D2-250 CPUs. The DL405
family includes the D4-430, D4-440, and D4-450 CPUs. The following chart lists the limitations of
the various CPUs when used with the RMC and Ethernet.
Family CPU Limitations
DL205 D2-
230 No Ethernet support. Cannot be used with the RMC ENET.
D2-
240 Severely limited support. Review Register Map before using.
D2-
250 Cannot use Plots.