Schneider Electric TSXETG100 Manuale Utente Scaricare il pdf (Pagina 188)

Glossary

188

Quantum Family of Schneider Automation PLCs.

RS 232C Serial communication standard that in particular defines the following operating

voltage:

l A signal of +3 to +25V indicates a logic 0

l A signal of -3V to -25V indicates a logic 1

Between +3V and -3V the signal is regarded as invalid.

RS 232 connections are relatively sensitive to interference. The standard

recommends not exceeding a distance of 15 meters and a speed of 20,000 baud

(bps) maximum.

RS 485 Serial connection standard operates at +/-5V differential. The connection uses

separate wires for transmission and receipt. Their "3-status" outputs allow them to

switch to listening mode when transmission is completed.

RUN Function used to start execution of the application program in the PLC.

SMTP Simple Mail Transfer Protocol: Application protocol used to transmit messages via

the Internet and direct them to a mailbox.

SNMP Simple Network Management Protocol: Network management protocol for

controlling a network remotely by polling the stations for their status and modifying

their configuration, performing security tests and viewing information relating to data

transmission. It can also be used to manage software and databases remotely.

TCP Transmission Control Protocol: Network data transmission protocol.

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Schneider Electric TSXETG100 Manuale Utente Pagina 188