Beckhoff TwinSAFE logic FB User Manual

Function blocks
172 Function blocks for TwinSAFE logic components
3.26.3.2 Inputs
Name
Data type
Description
Automatic
safeBOOL
0: Normal operation
1: Automatic mode (no parameter verification)
SettingMode
safeBOOL
Parameter transfer in setting-up mode. Internal parameters
can be changed if the input is set to 1.
Position
analog
(UINT16/UINT32)
Press position. The position value must be verified reliably
from several analog values or made available to the function
block by another other safe method, according to the
required SIL/performance level.
Reset
safeBOOL
BOOL
Reset input. Before each press start a falling edge must be
detected at the Reset input. Only then may a motion take
place or the TDC exited.
Press_Started
safeBOOL
BOOL
If the input is active, a motion or change of position is
expected when a logical 1 is encountered at the input. To
this end the parameter PressStartDelayTime,
MoveDetectionTime and MinPositionChange must be set.
TDC1_LowerLimit
Fixed value
(UINT16/UINT32)
Excentric mode:
The input or parameter TDC1_LowerLimit indicates the lower
TDC limit (top dead center). It is to the left of TDC.
TDC1_UpperLimit
Fixed value
(UINT16/UINT32)
Excentric mode:
The input or parameter TDC1_UpperLimit indicates the
upper TDC limit (top dead center). It is to the right of TDC.
TDC2_LowerLimit
Fixed value
(UINT16/UINT32)
not used
TDC2_UpperLimit
Fixed value
(UINT16/UINT32)
not used
BDC_LowerLimit
Fixed value
(UINT16/UINT32)
The input or parameter BDC_LowerLimit must be less than
MaxPosition/2 and greater than OverrunMax.
BDC_UpperLimit
Fixed value
(UINT16/UINT32)
The input or parameter BDC_UpperLimit must be greater
than MaxPosition/2 and less than TDC1_LowerLimit.
OverrunMax
Fixed value
(UINT16/UINT32)
OverrunMax indicates the position at which the press must
have stopped at the latest in excentric mode. If this value is
exceeded without the press stopping, the output CamMonOK
is set to FALSE.
The input or parameter OverrunMax must be greater than
TDC1_UpperLimit and less than BDC_LowerLimit.
BackwardsMove
safeBOOL
The input BackwardsMove can be used to move the press in
backward direction in excentric mode. This is possible until
TDC1_UpperLimit is reached.
OverrunCam
safeBOOL
not used
UpwardCam
safeBOOL
not used

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.