Siemens SINUMERIK MC User Manual

3.5 Restrictions in the programming languages FBD/LAD
LAD and FBD programming languages
The user program in the F-CPU typically consists of a standard user program and a safety
program.
The standard user program is created using standard programming languages such as SCL,
STL, LAD, or FBD.
For the safety program, LAD or FBD may be used with certain restrictions in the instructions and
the applicable data types and operand areas. Please also take into account the information
regarding restrictions relating to individual instructions.
Supported instructions
The instructions that are supported are listed in the description of the instructions (Instructions
for the safety program (Page 71)).
Note
It is not possible to connect the enable input EN and/or the enable output ENO.
Exception:
For the following instructions, by connecting enable output ENO, you can program an overflow
detection:
● ADD (addition)
● SUB (subtraction)
● MUL (multiplication)
● DIV (dividing)
● NEG (generated a two's complement)
● ABS (generate absolute value)
● CONVERT (convert value)
Supported data types and parameter types
Only the following data types are supported:
● BOOL
● INT
● WORD
● DINT
● TIME
Safety program of the F-PLC
3.5 Restrictions in the programming languages FBD/LAD
Safety Integrated (with SINAMICS S120)
Commissioning Manual, 02/2020, A5E46305916B AB 63

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