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User Manual
Original Instructions
857-VPA3CG Profibus DP Option Module
Catalog Number 857-VPA3CG
Summary of Changes
Topic
Summary of Changes
PROFIBUS-DP
PROFIBUS-PA
PROFIBUS-FMS
PROFIBUS-DP Device Profiles
Installation and Commissioning
Type Files
Dimensions
Specifications
This publication contains new and updated information as indicated in the
following table.
Topic
Added dimension graphic
The Allen-Bradley® 857 protection relays can be connected to the PROFIBUS
DP by using an external communications device 857-VPA3CG. The relay can
then be monitored from the host system.
PROFIBUS is a vendor-independent, open fieldbus standard for a wide range of
applications in manufacturing, process, and building automation. Vendor
independence and openness are guaranteed by the PROFIBUS standard EN
50170. With PROFIBUS, devices of different manufactures can communicate
without special interface adjustments. PROFIBUS can be used for both high-
speed time critical data transmission and extensive complex communication
tasks. The PROFIBUS family consists of three compatible versions that are
defined later in this manual.
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Table of Contents
Related Manuals for Allen-Bradley 857-VPA3CG
Summary of Contents for Allen-Bradley 857-VPA3CG
- Page 1 Added dimension graphic The Allen-Bradley® 857 protection relays can be connected to the PROFIBUS DP by using an external communications device 857-VPA3CG. The relay can then be monitored from the host system. PROFIBUS is a vendor-independent, open fieldbus standard for a wide range of applications in manufacturing, process, and building automation.
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Page 2: Profibus-Dp
857-VPA3CG Profibus DP Option Module PROFIBUS-DP Optimized for high speed and inexpensive hook-up, this PROFIBUS version is designed especially for communication between automation control systems and distributed I/O at the device level. PROFIBUS-DP can be used to replace parallel signal transmission with 24V or 0...20 mA. - Page 3 857-VPA3CG Profibus DP Option Module The device calculates the needed buffer length. For example, if the device's display shows: InBuf 32 byte OutBuf 0 byte, select the corresponding module "INPUT: 32 Byte" from the .gsd file (for example, VPA_00F7.gsd) when configuring the PROFIBUS-DP master for this device.
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Page 4: Request Mode
857-VPA3CG Profibus DP Option Module Select the corresponding module "INPUT/OUTPUT: 64 Byte" from the .gsd file (for example, VPA_00F7.gsd) when configuring the PROFIBUS DP master for this device. The recommended maximum size for output buffer in continuous mode is IMPORTANT 64 bytes. - Page 5 857-VPA3CG Profibus DP Option Module Data Response Message from the 857 Relay The response is eight bytes long consisting of three fields. VALUE Byte 0 Byte 1 Byte 2 Byte 3 Byte 4 Byte 5 Byte 6 Byte 7 (1) Type and number of the requested data.
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Page 6: Installation And Commissioning
857-VPA3CG Profibus DP Option Module Installation and External Adapter Commissioning The external adapter is connected to the 'REMOTE'-port (connector X5) on the relay back panel with 857-VX007-F3 cable. Figure 1 - Connecting External Adapter “Remote” port PROFIBUS VPA 3 CG (Attached... -
Page 7: Type Files
857-VPA3CG Profibus DP Option Module Type Files GSD-file ;================================================ =================== ;GSD file for VPA ;2002-07-22 JPH/Vaasa Electronics Ltd. ;File : VPA_00F7.GSD ;================================================ =================== #Profibus_DP ; Unit-Defination-List: GSD_Revision Vendor_Name = "Vaasa Electronics Ltd." Model_Name = "VPA" Revision = "1.0" Ident_Number = 0x00F7... - Page 8 857-VPA3CG Profibus DP Option Module Implementation_Type = "SPC3" Bitmap_Device = "DP_NORM" ; Slave-Specification: Freeze_Mode_supp = 1 ; Freeze-Mode supported Sync_Mode_supp ; Sync-Mode supported Auto_Baud_supp ; auto. Baud. detec. supp. Set_Slave_Add_supp = 0 ; Set_Slave_Add not supported Min_Slave_Intervall = 10 Modular_Station = 1...
- Page 9 857-VPA3CG Profibus DP Option Module EndModule Module = "INPUT: 16 Byte" 0x57 EndModule Module = "INPUT: 32 Byte" 0x5F EndModule Module = "INPUT: 64 Byte" 0x40,0x5F EndModule Module = "INPUT: 128 Byte" 0x40,0x7F EndModule Dimensions 115 mm (4.53 in.) 45 mm (1.77 in.)
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Page 10: Specifications
857-VPA3CG Profibus DP Option Module Specifications General Table 2 - PROFIBUS DP Connections Interface 9-pin DSUB connector (female) Transfer method RS-485, Half-duplex Transfer cable Twisted-pair (1 pair and shield) Electrical 500V DC Safety Meets standard EN50178 Table 3 - PROFIBUS Communication Data... - Page 11 857-VPA3CG Profibus DP Option Module Table 6 - Recommended Cables Belden PROFIBUS data cable 3079 A Olflex PROFIBUS cable 21702xx Siemens SINEC L2 LAN cable for PROFIBUS 6XVI 830-0AHIO Figure 2 - Cabling Bus Termination Station 1 Station 2 RxD/TxD-P (3)
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Page 12: Additional Resources
Provides declarations of conformity, certificates, and other www.rockwellautomation.com/global/ certification details. certification/overview.page You can view or download publications at http:// www.rockwellautomation.com/global/literature-library/overview.page. To order paper copies of technical documentation, contact your local Allen-Bradley distributor or Rockwell Automation sales representative. Rockwell Automation Publication 857-UM003B-EN-P - December 2017... -
Page 14: Rockwell Automation Support
How Are We Doing? form at http://literature.rockwellautomation.com/idc/groups/literature/documents/du/ra-du002_-en-e.pdf. Rockwell Automation maintains current product environmental information on its website at http://www.rockwellautomation.com/rockwellautomation/about-us/sustainability-ethics/product-environmental-compliance.page. Allen-Bradley, Rockwell Automation, and Rockwell Software are trademarks of Rockwell Automation, Inc. Trademarks not belonging to Rockwell Automation are property of their respective companies.