Siemens SINUMERIK 802C base line User Manual

Start-Up
SINUMERIK 802C base line
4-9
Start-Up
4.3 Starting up the PLC
General
The PLC is a store-programmable logic controller for simple machines. It has
no hardware of its own and is used as a software PLC in the SINUMERIK 802C
base line control system.
The task of the PLC is to control machine-related functional sequences.
The PLC executes the user program cyclically. A PLC cycle is always executed
in the same sequence of order.
z
Update process image (inputs, outputs, user interface, timers)
z
Process communication requests (Operator Panel, PLC 802 Programming
Tool)
z
Execute user program
z
Evaluate alarms
z
Output process image (outputs, user interface)
The PLC executes the user program cyclically, starting from the first up to the
final operation. Access from user program is only carried out via the process
image and not directly to the hardware inputs or outputs. The hardware inputs
and outputs are updated by the PLC at the beginning and at the end of
program execution. The signals are thus stable over a PLC cycle.
The user program can be created by means of the PLC 802 Programming Tool
using the programming language S7-200 in conjunction with ladder diagrams
(LAD). A ladder diagram is a graphical programming language to represent
electrical circuit diagrams.
This Documentation describes the program structure and the instruction set of
the PLC in detail.

Siemens SINUMERIK 802C base line Specifications

General

Brand	Siemens
Model	SINUMERIK 802C base line
Category	Controller
Language	English

Summary

Safety and Usage Guidelines

Safety Notices

Explains risk categories (Danger, Warning, Caution, Notice) for user safety.

Qualified Person

Defines the required qualifications for operating the unit.

Proper Use

Outlines general usage guidelines and associated warnings.

SINUMERIK 802C Base Line Control System

Installing the Control System

Installing and Dismantling SINUMERIK 802C Base Line

Instructions for mounting and removing the SINUMERIK 802C base line control system.

Interfaces and Cables

Details the various interfaces and connectors on the CNC system.

Connecting Individual Components

Guides for connecting drives, encoders, handwheels, and digital I/O.

Power Supply for CNC (X1)

Electrical parameters and pin assignment for the 24 V DC load power supply.

Start-Up

General Start-Up Requirements

Start-Up Sequence

Outlines the step-by-step procedure for starting up the SINUMERIK 802C system.

Structure of Machine Data (MD) and Setting Data (SD)

Data Saving

Explains internal and external data backup procedures for data integrity.

Turning On and Booting the Control System

Covers the power-on procedure, start-up switches, and initial boot process.

Starting Up the PLC

Introduces the PLC's role and its cyclical execution process.

Commissioning the PLC

PLC Start-Up Modes

PLC Alarms

Technology Setting

Commissioning

Guides the user through initializing the system and entering machine data.

Entering General Machine Data

Starting Up the Axes

Explains how to set up axes and spindle, including simulation and drive operation.

Starting Up the Spindle

Completing the Start-Up

Outlines final steps before delivery, including password changes and data saving.

Series Machine Start-Up

Software Update

Updating System Software via PC/PG

Step-by-step guide for updating system software using a PC.

Update Errors