Moxa VPORT 254-M-SC-T Instrukcja Użytkownika Pobierz pdf (Strona 68)

VPort 254 User’s Manual System Configuration

4-24

QoS (ToS)

Quality of Service (QoS) provides a traffic prioritization capability to ensure that important data is

delivered consistently and predictably. The VPort 351 can inspect layer 3 ToS (Type of Service)

information to provide a consistent classification of the entire network. The VPort 351’s ToS

capability improves your industrial network’s performance and determinism for mission critical

applications.

Setting Description Factory Default

Enable ToS

Enable the ToS for transmitting the video stream with

the given priority

Disable

DSCP Value Set the mapping table with different ToS values 0, 0

NOTE

To configure the ToS values, map to the network environment settings for QoS priority service.

Modbus/ TCP

Modbus is a serial communications protocol, which is often used to connect a supervisory

computer with a remote terminal unit (RTU) in supervisory control and data acquisition (SCADA)

systems. To transmit Modbus over a TCP/IP network, a standard Modbus/TCP protocol is

provided. With the support of Modbus/TCP protocol, the SCADA/HMI system can directly

communicate with the VPort to acquire the operation status.

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Moxa VPORT 254-M-SC-T Instrukcja Użytkownika Strona 68