Beckhoff TwinSAFE logic FB User Manual

Function blocks
Function blocks for TwinSAFE logic components 185
3.26.6 Description of the process
3.26.6.1 Standstill detection
The FB CAMMONITOR detects a standstill (Stopped =TRUE) if the change in position within the
StopDetectionTime is less than or equal to the AllowedPositionJitter.
3.26.6.2 Press movement
If the input PressStarted is TRUE, the function block monitors the press for movement.
The FB CAMMONITOR detects a press movement if the change in position at the Position input within
the MoveDetectionTime is greater than the MinPositionChange.
The PressStartDelayTimer is started when the PressStarted input changes from FALSE to TRUE. When
the PressStartDelayTimer has elapsed, PressStarted is TRUE and no press movement was detected, the
function block detects this and sets CamMonOK to FALSE. An error message is issued via the
DiagHistory of the EL6910.
3.26.6.3 Direction detection
A backward or counter-clockwise movement (MoveContraClockwise=TRUE) is detected if the position
has changed in counter-clockwise direction.
A forward or clockwise movement (MoveClockwise=TRUE) is detected if the position has changed in
clockwise direction.
In order for a movement to be detected, the position must change by more than the MaxPositionJitter
within the StopDetectionTime.
3.26.6.4 SettingMode
If the input SettingMode is set, in excentric mode the fixed values TDC1_LowerLimit, TDC1_UpperLimit,
BDC_LowerLimit, BDC_UpperLimit and OverrunMax are changed retrospectively and saved in a non-
volatile manner. In pendulum mode this applies to the set fixed values TDC1_LowerLimit,
TDC1_UpperLimit, TDC2_LowerLimit, TDC2_UpperLimit, BDC_LowerLimit and BDC_UpperLimit.

Beckhoff TwinSAFE logic FB Specifications

General

Brand	Beckhoff
Model	TwinSAFE logic FB
Category	Industrial Electrical
Language	English

Summary

1 Foreword

Notes on the Documentation

Information regarding the documentation's target audience, origin, currentness, and symbols used.

Safety Instructions

Guidance on safety instructions, delivery state, operator diligence, and explanation of notes.

2 System Description

TwinSAFE Logic Terminals and Connections

Details on TwinSAFE logic terminals, groups, connections, and configuration. Includes diagnosis overview.

System Diagnosis

Information on diagnosing TwinSAFE system components, including diagrams for TwinCAT 2 and TwinCAT 3.

3 Function Blocks

The Function Block AND

Functional description, signal details, diagnostic info, and TwinCAT configuration for the AND logic block.

The Function Block OR

Functional description, signal details, diagnostic info, and TwinCAT configuration for the OR logic block.

The Function Block OPMODE

Description of OPMODE function block for operation mode selection and restart behavior.

The Function Block ESTOP

Details on ESTOP function block: description, signals, configuration, restart behavior, and extensions.

The Function Block MUTING

Description of MUTING block, signals, configuration, examples, and extensions for EL/EJ6910.

The Function Block TON

Functional description, signal details, diagnostic info, and TwinCAT configuration for the TON delay timer.

The Function Block TOF

Functional description, signal details, diagnostic info, and TwinCAT configuration for the TOF delay timer.

The Function Block ADD

Description of ADD block for analog addition: signals, diagnostics, and TwinCAT configuration.

The Function Block SUB

Description of SUB block for analog subtraction: signals, diagnostics, and TwinCAT configuration.

The Function Block COMPARE

Description of COMPARE block for analog input comparison, including architectures, signals, and config.

The Function Block LIMIT

Description of LIMIT block for checking analog input values against Min/Max limits, including signals and config.

The Function Block COUNTER

Description of COUNTER block for up/down counting: signals, diagnostics, and TwinCAT configuration.

The Function Block CAMMONITOR

Description of CAMMONITOR block for electronic cam control: modes, inputs, outputs, parameters, and diagnostics.

4 Appendix

Beckhoff Support and Service

Information on contacting Beckhoff for technical support, system solutions, and after-sales service.

Beckhoff Headquarters Information

Contact details, phone, fax, email, and web address for Beckhoff Automation GmbH & Co. KG.