Delta RMC151 User Manual
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6 Communication
support all major Ethernet devices, and is interested in knowing about devices that the
RMC does not support.
Note: The RMC does not support any of the native Ethernet protocols built into
Windows. That is, it does not support Web browsers, FTP, e-mail, and browsing through
Network Neighborhood.
Configuring the RMC Ethernet Communications
Setting up the RMC Ethernet communications usually requires entering only a few TCP/IP
parameters. Additionally, advanced users can choose to disable auto-negotiation and
instead manually choose 10 or 100 Mbps and full- or half-duplex.
See the RMC Ethernet Setup topic for details.
Supported Ethernet Protocols
The RMC75E and RMC150E support the Ethernet protocols listed below. It is not
necessary to select in the RMC the application protocol or device with which you will be
communicating. The RMC will automatically respond to all supported protocols.
•
•
•
•
CSP (also called DF1 over Ethernet)
•
FINS/UDP (Omron)
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Procedure Exist (Mitsubishi Q-Series)
•
If your Ethernet device supports one of the protocols listed above, then it may be able to
communicate with the RMC. Read more about the protocols to make sure. There may be
subtle problems with using some devices with the RMC. For example, a device that
proclaims Modbus/TCP support may only be a slave device, and since the RMC is also a
slave, neither device will initiate transfers, preventing the devices from being able to work
together.
For a list of PLCs known to be compatible with the RMC, see the Using the RMC’s PLC
Ethernet Emulation topic. For lower-level details on the supported protocols, see the RMC
Ethernet Protocols topic.
Troubleshooting Ethernet
The Event Log and Communication Statistics provide information that can help
troubleshoot the Ethernet communications.
Unreliable RMCTools Connections
Slow or poor Ethernet connections between RMCTools and an RMC may cause lost
connections. Use the Communications: Ethernet section of the RMCTools Options
dialog to choose Ethernet timeouts intended for slow connections.
Wiring
Ethernet cables that go outside the control cabinet or can be exposed to transients from
motor drives or other switched loads should be shielded to avoid communication
interruptions.
For the RMC75E and RMC150E, use straight-through Cat5, Cat5e, or Cat6 Ethernet cable
with an RJ45 connector.
Ethernet Straight Through (8-wire) Cable
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