Moxa VPort P26A-1MP-T [62/82] Dynastreamtm

Moxa VPort 26A-1MP System Configuration

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DynaStreamTM

DynaSteam

is a unique and innovative function that allows for adaptive frame rates in response to events on

the network, such as event triggers and system commands. When network traffic becomes congested,

DynaStream™ allows VPort products to respond to CGI, SNMP, and Modbus commands from SCADA (as well as

the VPort 26A-1MP’s VMD, DI, CGI events, and video loss triggers) and automatically decrease the frame rates

to reduce bandwidth consumption. This reserves bandwidth for the SCADA system to maintain Quality of

Service (QoS) and guarantees that the SCADA performance will not be impacted by video traffic. For example,

the frame rate can be set low during regular streaming to reduce bandwidth usage and automatically switch to

a high frame rate during triggered events to ensure quick transmission of critical video data or video streams,

or to provide detailed visual images for problem analysis.

NOTE

For enabling the DynaStream function from CGI commands and Modbus TCP, please refer to

the CGI

Commands User’s Manual of VPort SDK PLUS and Modbus Address Table

Basic

The administrator can adjust the number of frames per second for each channel. There are two types of frame

rate status: Live and Alarm. Live status refers to the normal frames rates for live video displays. Alarm status

refers to what the frame rate will be adjusted to when the DynaStream function is activated.

Currently, the video stream for DynaStream is only set up for H.264 video streams, and the resolution and

quality are the same as for the settings in the Video Performance configuration.

Setting Description Factory Default

Max. FPS For setting the maximum frame rate per second. PAL: 25

NTSC: 30

After setting the Alarm frame rate, you may preview the video performance by clicking the Test button to

ensure it meets your requirements.