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Chapter 5
Setup and Configuration
RUGGEDCOM ROS
User Guide
114 Raw Socket Character Encapsulation
Section 5.4.1.1, “Raw Socket Character Encapsulation”
Section 5.4.1.2, “RTU Polling”
Section 5.4.1.3, “Broadcast RTU Polling”
Section 5.4.1.4, “Preemptive Raw Socket”
Section 5.4.1.5, “Port Redirectors”
Section 5.4.1.6, “Message Packetization”
Section 5.4.1.1
Raw Socket Character Encapsulation
Character encapsulation is used any time a stream of characters must be reliably transported across a network.
Character streams can be created by any type of device. The baud rates supported at either server need not be
the same. If configured, the server will obey XON/XOFF flow control from the end devices.
1
1 3
2
2
Figure 75: Character Encapsulation
1. Server 2. RMC30 3. Ethernet
Section 5.4.1.2
RTU Polling
Remote Terminal Unit (RTU) polling applies to a variety of RTU protocols, including Modbus ASCII and DNP.
NOTE
If a given device or service employs a serial protocol that is supported by ROS , it is advised to
configure ROS to use that particular protocol, rather than another one (e.g. RawSocket) that can be
made to be (partly) compatible.
Host equipment may connect directly to a server via a serial port, may use a port redirection package, or may
connect natively to the (Ethernet/IP) network.
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