WAGO Modular IO System INTERBUS S Instrukcja Obsługi Strona 219

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Glossary 215
WAGO-I/O-SYSTEM 750
ETHERNET TCP/IP
M
Mail Server
Internet E-mails are transported and stored temporarily by so-called Mail
servers. The personal post can be downloaded by such a Mail server or be
sent in reverse to the far dispatch to these. With the SMTP protocol E-mails
can be dispatched.
Manchester encoding
In this encoding system, a 1 is encoded as a transition from low to high and a
0 as a transition from high to low.
MIB
Short form for "Management Information Base". MIB is a sellection of
infomation on all parameters, which can be handed over to the management
software with a request via SNMP. Thus can be made remote maintenance, a
monitoring and a control of nets by SNMP protocol.
Modules
Functions, function blocks and programs are modules.
Each module has a declaration part and a body, the latter being written in one
of the IEC programming languages IL (instruction list), ST (structured text),
SFC (sequential flow), FBD (function block diagram) or LD (ladder
diagram).
MS-DOS
Operating system, which allows all applications direct access to the
hardware.
O
Open MODBUS/TCP Specification
Specification which establishes the specific structure of a MODBUS/TCP
data packet. This is dependant upon the selected function code.
Operating system
Software which links the application programs to the hardware.
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