RuggedCom RS400 manual Serial Protocols Overview, 1 ‘Raw Socket’ protocol features

Serial Protocols

2 Serial Protocols

RuggedCom devices support following serial protocols:

•Raw Socket serial encapsulation

•Preemptive Raw Socket

•TCPModbus (client and server modes)

•DNP 3

•Microlok

•WIN and TIN

•Mirrored Bits

2.1Serial Protocols Overview

Baud rates on serial interfaces can be configured in range of 100 to 230400 bps. A “turnaround” time is supported to enforce minimum times between messages sent out the serial port.

If port is set to force half duplex mode, while sending data all received data will be discarded. To set this mode, port must natively work in full duplex mode.

To transport protocol messages through the network, either TCP/IP or UDP/IP transport can be used. The exception is TCPModbus protocol that can not be employed over UDP.

The setting of Differentiated Services Code Point (DSCP) in the IP header is provided for TCP/IP and UDP/IP transport in the egress direction only.

Debugging facilities include statistics and tracing information on a serial port and/or network transport.

2.1.1‘Raw Socket’ protocol features

•A means to transport streams of characters from one serial port, over an IP network to another serial port

•XON/XOFF flow control

•Configurable local and remote IP port numbers per serial port

•Point-to-point UDP transactions

•TCP accept or request connection mode

•Point-to-point TCP connection mode and a broadcast connection mode in which up to 64 remote servers may connect to a central server

•Packetization and sending data on a full packet, a specific character or upon a timeout

•Configurable “turnaround” time to enforce minimum time between messages sent out the serial port.

2.1.2‘Preemptive Raw Socket’ protocol features

•A means to transport streams of characters from one serial port, over an IP network to another serial port

•Configurable local and remote IP port numbers per serial port

•TCP accept or request one permanent connection on configured IP address

RS400 53 ROS™ v3.5