Datalogic AMT58*-PN Series Instruction Manual page 14

Submodule A component of a module that is plugged into a subslot. A submodule is
real or virtual.
Subslot A group of one or more channels. Subslots can be real or virtual.
Sync domain All PROFINET devices that are to be synchronized via PROFINET IO with
IRT must belong to a sync domain. The sync domain consists of precisely
one sync master and at least one sync slave. IO controllers and switches
can hold the role of a sync master or sync slave. Other IO devices
support only the role as sync slave. Refer to page 94.
System System functions (SFC) are integral functions in the operating system of a
function S7 CPU. In addition, SFCs are frequently called implicitly by SFBs. SFCs
can be called by the user program like normal functions. SFCs are used
to implement a number of important system functions for Profinet IO.
System System function blocks (SFB) are integral functions in the operating
function block system of a S7 CPU. SFBs can be called by the user program like normal
function blocks. SFBs are used to implement a number of important
system functions for Profinet IO.
TCP/IP The Ethernet system is designed solely to carry data. It is comparable to
a highway as a system for transporting goods and passengers. The data
is actually transported by protocols.
This is comparable to cars and commercial vehicles transporting
passengers and goods on the highway.
Tasks handled by the basic Transmission Control Protocol (TCP) and
Internet Protocol (IP) (abbreviated to TCP/IP):
1. The sender splits the data into a sequence of packets.
2. The packets are transported over the Ethernet to the correct recipient.
3. The recipient reassembles the data packets in the correct order.
4. Faulty packets are sent again until the recipient acknowledges that
Telegram A telegram is a rigidly defined bit stream carrying data. A telegram
specifies the data length and the type of data which is sent to and from
the IO controller. The encoder profile supports Standard Telegrams 81,
82, 83 and 84. Refer to page 44.
Topology Network structure. Commonly used structures:
Refer to page 94.
Transmission Data transfer rate (in bps).
rate
User program The user program contains all instructions, declarations and data for
signal processing required to control a plant or a process. It is assigned to
a programmable module (for example CPU) and can be structured in
smaller units (blocks).
they have been transferred successfully.
 Line topology;
 Ring topology;
 Star topology;
 Tree topology.