Glossary
SIMATIC MV420 / SIMATIC MV440
414 Operating Instructions, 04/2013, A5E02371045-06
Slave
The device configured as slave in a communications system receives data from the device
configured as master. The slave is always the passive partner.
SNTP: Simple Network Time Protocol
SNTP is a simplified version of NTP. NTP is a standard for synchronizing clocks in computer
systems via packet-based communications networks.
SP1
Service Pack 1 -> Additional software for the Windows XP Professional operating system
and Internet Explorer 6.0.
SR
SR stands for the resolution 640 × 480 or 768 x 480 regardless of other parameters.
Statement list
Statement List is a user program in which the control functions are listed in the form of
statements.
STEP 7
STEP 7 is the software package for configuring and programming SIMATIC automation
systems. It is part of the SIMATIC industrial software.
Sub-ROI
The area in the main ROI with characteristics of the specimens of special relevance for
image processing. Sub-ROIs are created when the characteristics of the main ROI are not
adequate for evaluation.
Switch:
A switch is an electronic device for connecting several computers or network segments in a
local network (LAN) - similar to a hub. A switch is also known as an intelligent hub. In its
original form, the switch operates on layer 2 (Data Link layer) of the OSI model. The switch
processes 48-bit MAC addresses and creates an SAT (Source Address Table).
The switch has properties similar to a bridge and is also known as a multi-port bridge.
Ethernet switch is the shortened form, of
switching hub
and indicates the ability to operate
switched Ethernet.
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