Siemens ET 7Y Series Especificaciones descargar pdf (Pagina 199)

Glossary

Glossary-7

ET 200S IM 151-7 CPU Interface Module

A5E00058783-04

Master System

All DP slaves that are assigned to a DP master for either reading or writing plus

the DP master itself make up the master system.

MMC

Micro Memory Card Memory module for SIMATIC systems. Can be used as a

load memory and portable data carrier.

MPI

The multipoint interface (MPI) is the programming device interface of the

SIMATIC S7.

Nesting Depth

One block can be called from within another using block calls. The nesting depth

is the number of code blocks called at the same time.

Node

A device that can send, receive or amplify data via the bus, such as a

DP master, DP slave, RS 485 repeater or active star coupler.

OB  Organization Block

OB priority

The operating system of the CPU distinguishes between various priority classes,

such as cyclic program scanning and process interrupt-driven program scanning.

Each priority class is assigned organization blocks (OB) in which the S7 user

can program a response. The OBs have, by default, differing priorities that

determine the order in which they are processed if they occur simultaneously or

if they interrupt one another.

Operating Mode

The SIMATIC S7 programmable controllers can detect the following operating

modes: STOP,  START, RUN.

Operating system of the CPU

The operating system of the CPU organizes all functions and procedures of the

CPU that are not linked to a specific control task.

1 2 ... 194 195 196 197 198 199 200 201 202 203 204 ... 213 214

Sin comentarios

Siemens ET 7Y Series Especificaciones Pagina 199