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Omron NX-SL series

Omron NX-SL series
270 pages
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Machine Automation Controller
NX-series
Safety Control Unit
Instructions Reference Manual
Z931-E1-04
NX-SL

Table of Contents

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Omron NX-SL series Specifications

General IconGeneral
BrandOmron
ModelNX-SL series
CategoryControl Unit
LanguageEnglish

Summary

Introduction to Instructions for Safety Control Units and Interpreting Instruction Descriptions

Types of Instructions

Describes the three types of instructions used with Safety Control Units.

Interpreting Instruction Descriptions

Explains the notation used to describe instructions.

Standard Functions

Execution Control Instructions

Details instructions for controlling program execution flow.

Data Type Conversion Instructions

Explains instructions for converting data types between different formats.

Boolean Operation Instructions

Describes instructions for performing logical Boolean operations.

Math Instructions

Details instructions for arithmetic operations on integers and durations.

Comparison Instructions

Instructions for comparing values of variables.

Selection Instructions

Instructions for selecting values based on conditions.

Safety Standard Function Blocks

Safety Standard Function Block Instructions

Lists and describes safety standard function block instructions.

SFCTD

Decrements the counter value when the counter input signal is received.

SFCTU

Increments the counter value when the counter input signal is received.

SFCTUD

Creates an up-down counter operating on up and down counter inputs.

SFFTRIG

Outputs TRUE for one task period when the input signal changes to FALSE.

SFRTRIG

Outputs TRUE for one task period when the input signal changes to TRUE.

SFRS

Retains the value of a SAFEBOOL variable, giving priority to Reset.

SFSR

Retains the value of a SAFEBOOL variable, giving priority to Set.

SFTOF

Outputs FALSE when the set time elapses after the timer starts.

SFTON

Outputs TRUE when the set time elapses after the timer starts.

SFTP

Outputs TRUE during the set time after the timer starts.

Safety Function Blocks

General Rules for Safety Function Blocks

Provides general rules for safety function blocks, including rules specific to FBs.

Safety Function Block Instructions

Lists and describes various safety function blocks.

SFAntivalent

Monitors discrepancy time for two antivalent SAFEBOOL inputs.

SFEDM

Controls a safety output and monitors actuator control.

SFEmergencyStop

Monitors the input from an emergency stop button.

SFEnableSwitch

Supports stopping a safety function using an enable switch.

SFEquivalent

Monitors discrepancy time for two equivalent SAFEBOOL inputs.

SFESPE

Monitors electro-sensitive protective equipment (ESPE).

SFGuardLocking

Controls entry to hazardous areas with a four-state interlock guard.

SFGuardMonitoring

Monitors safety guards and opens/closes them.

SFModeSelector

Selects system operation mode (automatic, manual, etc.).

SFMutingPar

Performs parallel muting with four muting sensors.

SFMutingPar2 Sensor

Performs parallel muting with two muting sensors.

SFMutingSeq

Performs sequential muting with four muting sensors.

SFOutControl

Controls a safety output with control and safety signals.

SFSafetyRequest

Makes requests for safe state and monitors actuator safety state.

SFTestableSafetySensor

Tests functionality with external test function of ESPE sensors.

SFTwoHandControlTypeII

Provides type II, two-hand control function per ISO 13851.

SFTwoHandControlTypeIII

Provides type III, two-hand control function per ISO 13851.

Index

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