Beckhoff FC7501 Manuale dell'operatore
Documentation
FC7501 and FC7502
SERCOS interface PCI Cards
2.0
2017-11-17
Version:
Date:
Table of contents
FC7501 and FC7502 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 System description ......................................................................................................................... 7
2.2 Hardware ........................................................................................................................................ 8
2.3 Technical Data.............................................................................................................................. 10
3 Installation................................................................................................................................................11
3.1 Installation of the SERCOS card in the PC................................................................................... 11
3.2 Installation of the PCI driver.......................................................................................................... 12
4 Configuration ...........................................................................................................................................13
4.1 Configuration ................................................................................................................................ 13
4.2 The FC750x tab ............................................................................................................................ 14
4.3 The Timing (Online/Offline) tab..................................................................................................... 16
4.4 Online tab ..................................................................................................................................... 17
4.5 DPRAM (Online) tab ..................................................................................................................... 17
5 Diagnostic inputs ....................................................................................................................................18
6 Appendix ..................................................................................................................................................20
6.1 Support and Service ..................................................................................................................... 20
Table of contents
FC7501 and FC75024 Version: 2.0
Foreword
FC7501 and FC7502 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
FC7501 and FC75026 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
FC7501 and FC7502 7Version: 2.0
2 Product overview
2.1 System description
SERCOS is an open, fast bus system that has been the international standard (IEC61491) for numerically
controlled machines since 1995. Meeting high real-time requirements and interference-proof transfer in
optical fiber technology are important features of this bus system, which is widely used for drive technology
applications. The bus consists of a master and of a number of slaves. In a SERCOS system, the servo drives
or the BK7500 SERCOS Bus Coupler represent the slaves.
Fig.1: SERCOS interface optical fiber ring
The bus topology is a ring system, in which it is possible to operate up to 254 stations. The data transfer rate
is 2, 4, 8 or 16Mbit/s. There are basically three types of telegram:
1. The master-sync telegram is received by all the slaves, and is used for synchronization.
2. The master data telegram is also received by all the slaves, and contains the cyclic data and the ser-
vice data.
3. The slaves send their data in the form of a drive telegram.
PC Fieldbus Cards for SERCOS Interface
Beckhoff specially developed the fieldbus cards FC7501 (single-channel) and FC7502 (double-channel) with
PCI interface for the SERCOS interface. The driver integrated in the TwinCAT automation software ensures
optimum performance of these passive master cards, so that compared with an active solution there are no
unnecessary restrictions with regard to the number of devices or the data length. This also enables larger
SERCOS projects with more than 50axes to be realized. To do so several PCs are precisely synchronized
via SERCOS, whereby one PC is defined as the master and all the others as slaves. For these applications it
is interesting that the FC7502 double-channel card can handle one master ring and one slave ring. The
parameterization of the master/slave mode is carried out simply through the software.
Product overview
FC7501 and FC75028 Version: 2.0
Bus Coupler for SERCOSinterface
A further advantage results from the use of Beckhoff Bus Terminals with the BK7500 SERCOS Bus Coupler,
which enables the high data rate, short cycle time and high deterministic features of SERCOS also to be
used for classic I/O technology. Up to 64 the Bus Terminals for different analog or digital signals can be
coupled to a single Bus Coupler. Machine manufacturers with a high drive consumption and low I/O
consumption no longer have to install an additional I/O bus.
SERCOS control system
With TwinCAT as software PLC/NC, SERCOS cards, digital servo drives and Bus Terminals as I/O system,
Beckhoff thus provides a complete PC-based control system for the SERCOS interface.
2.2 Hardware
The PCI cards for SERCOS interface FC7501 (single-channel) and FC7502 (double-channel) enable direct
access to the SERCON816 ASIC. The driver for these passive cards is incorporated into the TwinCAT
software and allows optimum access to the SERCOS interface. There are no unnecessary restrictions with
regard to the number of bus devices and I/O data per device.
The power of TwinCAT comes into its own with this new interface generation:
• Up to 254devices (servo drives or I/O modules, e.g.Bus Terminals with Bus Coupler BK7500)
• No restriction regarding assignment and length of the I/O data
• Exact synchronization between TwinCAT and SERCOS
• Cycle times up to 62,5µs are possible
• Synchronous process data communication
• Master and slave mode can be parameterized by software
• It is possible to have two parallel fieldbus channels on one card (2x SERCON816)
• Synchronization of both channels and other cards along with PC is possible
• Reading of bus configuration possible
Fig.2: FC7501 and FC7502 in revision B
Product overview
FC7501 and FC7502 9Version: 2.0
Fig.3: FC7501 and FC7502 in revision C
1. PCI bus interface
2. Socket for connecting the sync cable
11. SERCOS output for connecting the outgoing optical fiber for optical fiber ring A
12. SERCOS input for connecting the return optical fiber for optical fiber ring A
13. Diagnostics LED for optical fiber ring A
21. SERCOS output for connecting the outgoing optical fiber for optical fiber ring B
22. SERCOS input for connecting the return optical fiber for optical fiber ring B
23. Diagnostics LED for optical fiber ring B
The hatched components for SERCOS channelB are not populated on the single-channel FC7501.
Compared with revisionB, revisionC has a larger board corresponding to the standard height of PCI cards.
TwinCAT I/O provides configuration tools and Windows NT/2000 drivers for programs in any desired high
level language (DLLs) and for Visual Basic applications (ActiveX). Applications with OPC interfaces can
access the cards via an OPC server.
Diagnostics LED
The diagnostics LED of a fieldbus channel is on, if the data transfer on the optical fiber is disturbed.
Product overview
FC7501 and FC750210 Version: 2.0
2.3 Technical Data
FC7501 FC7502
Fieldbus SERCOSinterface
Number of fieldbus channels 1 2
Data transfer rate 2, 4, 8 or 16Mbit/s
Synchronization Synchronization of several cards via ribbon cable
Bus devices 254 max. per channel
Cycle time all supported by SERCOSinterface (from 62.5µs)
Hardware diagnosis 1 LED per channel
Interface to the PC Plug and Play PCI Interface 32bit, direct access to DPRAM and
SERCON816 register
Current consumption from the PCI bus typically 180mA typically 285mA
Dimensions approx. 95mmx120mm
Permissible ambient temperature during
operation
0° to 55 °C
Ordering information
Order identifier Product
FC7501 SERCOS interface PCI card, single-channel
FC7502 SERCOS interface PCI card, double-channel
Z1003 FSMA plug with knurled nut for 1000µm plastic fiber
Z1100 Plastic optical fiber, single core, 1000µm
Z1101 Plastic optical fiber, single core, 1000µm with protective PU
cladding and Kevlar strain relief
ZB7501 SERCOS master sync cable, for connecting SERCOS interface
PCI cards of a PC
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