Beckhoff FC2001 Bedienerhandbuch
Documentation
FC2001 and FC2002
Lightbus PCI Interface Cards
2.0
2017-10-26
Version:
Date:
Table of contents
FC2001 and FC2002 3Version: 2.0
Table of contents
1 Foreword ....................................................................................................................................................5
1.1 Notes on the documentation........................................................................................................... 5
1.2 Safety instructions .......................................................................................................................... 6
2 Product overview.......................................................................................................................................7
2.1 Lightbus System Description .......................................................................................................... 7
2.2 Hardware ........................................................................................................................................ 9
2.3 Technical data .............................................................................................................................. 11
3 Installation................................................................................................................................................12
3.1 Installation in the PC..................................................................................................................... 12
3.2 Installation of the PCI driver.......................................................................................................... 12
4 Configuration by means of the TwinCAT System Manager ................................................................14
4.1 Scanning for the I/O devices......................................................................................................... 14
4.2 FC200x tab ................................................................................................................................... 15
4.3 DPRAM (online) tab...................................................................................................................... 17
4.4 Appending further components..................................................................................................... 17
5 Diagnostics ..............................................................................................................................................21
5.1 Diagnostics via the System Manager ........................................................................................... 21
5.2 Status and diagnostic inputs......................................................................................................... 23
5.3 Diagnostics with function blocks ................................................................................................... 25
6 Appendix ..................................................................................................................................................27
6.1 Support and Service ..................................................................................................................... 27
Table of contents
FC2001 and FC20024 Version: 2.0
Foreword
FC2001 and FC2002 5Version: 2.0
1 Foreword
1.1 Notes on the documentation
Intended audience
This description is only intended for the use of trained specialists in control and automation engineering who
are familiar with the applicable national standards.
It is essential that the documentation and the following notes and explanations are followed when installing
and commissioning these components.
It is the duty of the technical personnel to use the documentation published at the respective time of each
installation and commissioning.
The responsible staff must ensure that the application or use of the products described satisfy all the
requirements for safety, including all the relevant laws, regulations, guidelines and standards.
Disclaimer
The documentation has been prepared with care. The products described are, however, constantly under
development.
We reserve the right to revise and change the documentation at any time and without prior announcement.
No claims for the modification of products that have already been supplied may be made on the basis of the
data, diagrams and descriptions in this documentation.
Trademarks
Beckhoff®, TwinCAT®, EtherCAT®, Safety over EtherCAT®, TwinSAFE®, XFC® and XTS® are registered
trademarks of and licensed by Beckhoff Automation GmbH.
Other designations used in this publication may be trademarks whose use by third parties for their own
purposes could violate the rights of the owners.
Patent Pending
The EtherCAT Technology is covered, including but not limited to the following patent applications and
patents: EP1590927, EP1789857, DE102004044764, DE102007017835 with corresponding applications or
registrations in various other countries.
The TwinCAT Technology is covered, including but not limited to the following patent applications and
patents: EP0851348, US6167425 with corresponding applications or registrations in various other countries.
EtherCAT® is registered trademark and patented technology, licensed by Beckhoff Automation GmbH,
Germany
Copyright
© Beckhoff Automation GmbH & Co. KG, Germany.
The reproduction, distribution and utilization of this document as well as the communication of its contents to
others without express authorization are prohibited.
Offenders will be held liable for the payment of damages. All rights reserved in the event of the grant of a
patent, utility model or design.
Foreword
FC2001 and FC20026 Version: 2.0
1.2 Safety instructions
Safety regulations
Please note the following safety instructions and explanations!
Product-specific safety instructions can be found on following pages or in the areas mounting, wiring,
commissioning etc.
Exclusion of liability
All the components are supplied in particular hardware and software configurations appropriate for the
application. Modifications to hardware or software configurations other than those described in the
documentation are not permitted, and nullify the liability of Beckhoff Automation GmbH & Co. KG.
Personnel qualification
This description is only intended for trained specialists in control, automation and drive engineering who are
familiar with the applicable national standards.
Description of symbols
In this documentation the following symbols are used with an accompanying safety instruction or note. The
safety instructions must be read carefully and followed without fail!
DANGER
Serious risk of injury!
Failure to follow the safety instructions associated with this symbol directly endangers the
life and health of persons.
WARNING
Risk of injury!
Failure to follow the safety instructions associated with this symbol endangers the life and
health of persons.
CAUTION
Personal injuries!
Failure to follow the safety instructions associated with this symbol can lead to injuries to
persons.
Attention
Damage to the environment or devices
Failure to follow the instructions associated with this symbol can lead to damage to the en-
vironment or equipment.
Note
Tip or pointer
This symbol indicates information that contributes to better understanding.
Product overview
FC2001 and FC2002 7Version: 2.0
2 Product overview
2.1 Lightbus System Description
Note
System description for FC200x / EL6720
The following system description is applicable both for the Beckhoff Lightbus PCI interface
card FC200x and for the Lightbus master terminal EL6720.
The Lightbus consists of the Lightbus PCI interface card (in short Lightbus card) and an optical fiber-based
fieldbus.
Fig.1: Lightbus LWL-Ring
The coupling of the Lightbus with the PC is realized on the Lightbus card via a Dual Ported RAM (DPRAM).
Various I/O modules (Bus Coupler, Bus Terminals, Fieldbus Boxes etc.) are available for input and output of
the process images, which are connected through the Lightbus in a ring structure. The use of optical fibers
results in low susceptibility to interference and a high transfer rate of 2.5 MBaud. Any errors occurring in the
optical fiber ring are detected by the Lightbus card and reported to the PC. TwinCAT provides
comprehensive diagnostic functions that support fast detection and correction of any errors.
A communication protocol that is optimized for speed and simplicity is specified for the data transfer between
the Lightbus card and the I/O modules. The Lightbus card controls the communication on the optical fiber
ring. It sends telegrams that pass through the I/O modules in the optical fiber ring and are then received and
checked back at the Lightbus card.
A telegram consists of a telegram frame and the telegram content.
Product overview
FC2001 and FC20028 Version: 2.0
Fig.2: Lightbus telegram structure
The telegram frame is required for serial data communication and consists of 1 start bit, 6 CRC check bits
and 2 stop bits. It is generated and checked independently by the hardware of the Lightbus card. No
software support is required.
The telegram content is essentially organized byte-wise. AD0 to AD7 form the address field, through which
up to 254 I/O modules can be addressed (the addresses 0x00 and 0x0FF are reserved). The bits CR0 to
CR3 specify the telegram type. The following functions can be specified in the telegram:
Functions
CR3 CR2 CR1 CR0 Function Description
0 0 0 0 Read The addressed module inserts the input information into data
fields D0 to D3.
0 0 0 1 Read and write The addressed module inserts the input information into data
fields D0 to D3 and receives the output information.
0 0 1 0 Address
initialization
The addressed module receives the content of D0 as the
module address and sets D0 to 0.
0 0 1 1 RAM Special telegram type for the BK2000 Bus Coupler.
0 1 0 0 Address check and
count
Each passing module increases the content of D0 by 1. The
addressed module moves the content of D0 to D3.
1 0 0 1 Low intensity The addressed module reduces the transmission intensity by
20%.
1 0 1 1 Broadcast Special telegram type for the BK2000 Bus Coupler.
The bytes D0 to D3 contain the actual user data. The control field specifies the processing of these user
data. The last byte in the telegram contains 6 bits for forming a CRC checksum and 2 reserved bits. A user
data length of 50 bits thus achieves a hamming distance of d=3.
The Lightbus consists of a physical ring, which can be split into up to 8 logical rings for processing the
process image. A logical ring only operates for selected I/O modules, which are specified via communication
description lists (CDLs).
The Lightbus card makes the process image available to the PC via the DPRAM. The DPRAM is divided into
three areas:
• Data:
Input, output and flags
• Communication:
Initialization, testing, analysis and configuration of the Beckhoff Lightbus
• Process control:
Updating the Process Image
The DPRAM of the Lightbus cards requires 4 kB per channel in the address space of the PC.
Product overview
FC2001 and FC2002 9Version: 2.0
2.2 Hardware
As a Lightbus PCI interface card (in short Lightbus card), the FC200x realizes the connection of the Lightbus
to the PC, and therefore provides access for TwinCAT to the sensors and actuators in the automation
process. The FC2002 Lightbus card can operate two optical fiber rings. In logical terms, it behaves like two
FC2001 cards, i.e. the FC2002 contains two sets of components for the optical fiber ring.
Lightbus card components
Fig.3: Lightbus card components
1. PCI bus interface
11. Lightbus output for connecting the outgoing optical fiber for optical fiber ring A
12. Lightbus input for connecting the return optical fiber for optical fiber ring A
13. Three LEDs for status display for optical fiber ring A
14. Lightbus-LCA for optical fiber ring A
15. 4KB DP-RAM for optical fiber ring A
16. 512KB RAM (4 x 128 KB) for optical fiber ring A
17. 256KB Flash for optical fiber ring A
21. Lightbus output for connecting the outgoing optical fiber for optical fiber ring B
22. Lightbus input for connecting the return optical fiber for optical fiber ring B
23. Three LEDs for status display for optical fiber ring B
24. Lightbus-LCA for optical fiber ring B
25. 4KB DP-RAM for optical fiber ring B
26. 512KB RAM (4 x 128KB) for optical fiber ring B
27. 256KB Flash for optical fiber ring B
The hatched components for optical fiber ring B are not populated on the FC2001.
Product overview
FC2001 and FC200210 Version: 2.0
Status display
Each Lightbus channel has 3 status LEDs.
Fig.4: Status displays
1. Optical Err (Lightbus error):
◦ If a defect in the optical fiber ring occurs during operation, the red LWL Err LED is activated.
◦ If the optical fiber error is of a general nature, the LWL Err LED flashes.
◦ If the error has occurred during the resident address test, the LWL Err LED is on continuously.
The update of the process image is interrupted.
The diagnostic functions can be used to determine the cause of the error.
2. CPU Err (CPU error):
◦ If only the red CPU Err LED is on, this indicates a hardware error that cannot be corrected.
◦ If the Run LED is also on, a program error is present that may potentially be rectified through a
hardware reset.
3. Run:
◦ If only the green Run LED is on, the FC200x was initialized without errors and is ready for
operation.
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