Siemens SINUMERIK MC User Manual

3.15.1 Data transfer from the safety program to the standard user program
Overview
The standard user program can read out all data of the safety program, e.g. using symbolic
(fully qualified) access operations to:
● The instance DBs of the F-FBs ("Name of instance DB".Signal_x)
● F-DBs (for example "Name of F_DB".Signal_1)
● The process image of the inputs and process image of the outputs of F-I/O (for example
"Emergency_Stop_Button_1" (I 5.0))
Note
Valid for F-CPUs S7-1200/1500
The process image of the inputs of the F-I/O is updated before processing the main safety
block.
Further, you have the option of directly writing safety program data to the standard user
program (see also table of the supported operand areas in: Restrictions in the programming
languages FBD/LAD (Page 63)):
Data block/bit memory
In the safety program, you can write to data blocks of the standard user program in order that
the safety program data can be directly written to the standard user program (e.g. output DIAG
of instruction SENDDP). However, a written tag must not be read in the safety program itself.
You can also write to bit memory in the safety program. However, written bit memory must not
be read in the safety program itself.
Process image of the outputs
You can write to the process image of the outputs (PIQ) of standard I/O in the safety program,
for example for display purposes. The PIQ must not be read in the safety program.
Safety program of the F-PLC
3.15 Data exchange between the standard user program and safety program
Safety Integrated (with SINAMICS S120)
Commissioning Manual, 02/2020, A5E46305916B AB 89

Siemens SINUMERIK MC Specifications

General

Control System Type	CNC
Series	SINUMERIK
Control Type	Numerical Control
Input Voltage	24 V DC
Interface	Ethernet, USB
Display	TFT color display
Spindle Capacity	Up to 4

Summary

Fundamental Safety Instructions

General Safety Instructions

Crucial safety instructions and warnings for operating the equipment safely to prevent injury or death.

Security Information

Fundamentals

SINUMERIK MC Configuration

Safety Functions of the F-PLC

Safety Functions Integrated in the Drive

Overview of SINAMICS Safety Integrated Functions, differentiation by scope and application.

Safety Program of the F-PLC

Overview of F-PLC Safety Functions

Introduction to F-PLC, F-I/O, safety program, and the principle of operation for safety functions.

Program Structure of the Safety Program (S7-1500)

Safety Administration Editor

Safety Functions Integrated in the Drive

SS1 Basic: Safe Stop 1

Definition, variants, and functional features of the SS1 function for safe stop category 1.

STO (Basic/Extended): Safe Torque Off

Definition and function of Safe Torque Off (STO) to safely disconnect energy supply to the motor.

SBC (Basic/Extended): Safe Brake Control

Definition and function of Safe Brake Control (SBC) for safely controlling a holding brake.

SS2: Safe Stop 2

Definition and function of Safe Stop 2 (SS2) to safely bring the motor to a standstill.

Controlling Safety Functions Integrated in the Drive

Control Possibilities

Available options for controlling safety functions: PROFIsafe telegrams and terminal control.

Overview of Telegrams

Control via PROFIsafe

Enabling PROFIsafe control for Safety Integrated Basic and Extended Functions.

Commissioning and Configuring

Commissioning Sequence

Overview of steps for commissioning Safety Integrated Functions for SINUMERIK MC with SINAMICS S120.

Configuring Safety-Relevant Components

Special considerations for configuring Safety Integrated components compared to S7-1500.

Loading the Configuration into the Control System

Procedure to load hardware and software configuration to the PLC and PC system.

Configuring NC and Drive-Specific Safety Settings

Diagnostics

Overview of Diagnostic Functions

SI Telegrams Overview

SI Checksums

Stop Responses

Acceptance Test in the SINUMERIK ONE Commissioning Tool

Purpose and Requirements

Component Replacement (Software/Hardware)

Safety Instructions

Motors, CU SINAMICS S120