Delta RMC151 - Manual (Page 443)

6 Communication
6.8.8.1. Setting Up the RMC Ethernet
Setting up the Ethernet communications for the RMC75E or RMC150E requires entering only a
few IP parameters.
1. Go Online with the RMC.
2. In the Project Pane, expand the Modules folder, double-click the CPU module and
click Ethernet.
3. In the IP Settings section, click Use the following IP address.
4. Enter an IP address and subnet mask in dotted decimal notation (e.g. 192.168.0.5
and 255.255.255.0). To learn about IP addressing or setting up a stand-alone
network, refer to Understanding IP Addressing and Setting Up a Standalone TCP/IP
Network.
5. The Default Gateway is optional. If you choose not to use it, leave it blank, and the
RMC will not be able to communicate with devices on networks other than its own.
Otherwise, enter a value in dotted decimal notation (e.g. 192.168.0.1).
In the Additional Options section, checking the Lock IP settings box will not allow the IP
settings to be changed through an Ethernet connection. Changing the IP settings will only be
allowed when RMCTools is connected to the RMC via USB. Locking the IP settings prevents
accidentally changing the IP settings from RMCTools when connected over Ethernet. If they
are accidentally changed, then the connection will be broken, which can be very frustrating if
programming the RMC remotely.
6.8.8.2. RMC Ethernet Protocols
This topic provides a complete list of low-level protocols supported on the RMC75E and
RMC150E for use by network administrators. This topic is not required to be understood for
using the RMC module successfully. It is intended to be a brief summary of the architecture
and a list of the protocols.
TCP/IP Layers Overview
Networking is often viewed conceptually as layers of protocols. Each layer contains a
header, used to fulfill the purpose of that layer, and data. These layers are set up such
that each layer contains the header and data from the next higher layer within its data
area, as shown in the following diagram:
Application
Layer
Modbus/TCP
Header
Modbus/TCP
Data Area
Transport
Layer
TCP
Header
TCP
Data Area
Internet
Layer
IP
Header
IP
Data Area
Framing
Layer
Ethernet
II
Header
Ethernet II
Data Area
CRC
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