Delta RMC151 - Manual (Page 447)

6 Communication
Many industrial applications require a standalone Ethernet network for machine control, for
example, a PLC communicating with several RMCs and an HMI. This topic describes how to
easily set up a standalone Ethernet network using TCP/IP.
Before reading this topic, make sure you understand the Understanding IP Addressing topic.
Note:
This topic is intended only for new networks that will not be connected via a router to another
network. If you will be adding an RMC to an existing network or you will be creating a new
network that will be connected via a router to another network, consult your network
administrator.
To set up a stand-alone network:
1. Wire the Network
The RMC75E and RMC150E use the IEEE 802.3 100BaseT hardware standard. This
means it runs at 100Mbaud on twisted pair wiring rated Category 5 or higher, and
uses RJ45 connectors. Twisted pair networks generally use a star topology, which
means that each device is wired to a single switch device, as illustrated below:
Care should be taken to use a high-quality switch that will support the temperature,
noise, vibration, and other environmental requirements of the application. It is also
important to use a switch rather than a hub to avoid collisions, which reduce the
determinism of the network. Both switches and Category 5 (commonly called CAT5)
cabling are readily available from network supply companies.
2. Select a network address and subnet mask.
By convention, the address ranges below are intended to be used for private networks.
An address from these ranges is a good choice for the network address of a stand-
alone control network.
• 10.0.0.0 - 10.255.255.255
• 172.16.0.0-172.31.255.255
• 192.168.0.0 - 192.168.255.255
deltamotion.com 427