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Beijer Electronics GN-9251 User Manual

Network adapter module, bacnet/ip b-asc network adapter, max. 32 slices
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User Manual
GN-9251 Network Adapter Module
BACnet/IP B-ASC network adapter, max. 32 slices
Doc ID: 112331
2025-02-20

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Summary of Contents for Beijer Electronics GN-9251

  • Page 1 User Manual GN-9251 Network Adapter Module BACnet/IP B-ASC network adapter, max. 32 slices Doc ID: 112331 2025-02-20...
  • Page 2 The information in this document is subject to change without notice and is provided as available at the time of printing. Beijer Electronics AB reserves the right to change any information without updating this publication. Beijer Electronics AB assumes no responsibility for any errors that may appear in this document.

  • Page 3: Table Of Contents

    13. MODBUS Interface ..................33 13.1. IO Process Image Map ................. 33 13.2. Supported MODBUS Function Codes ............36 13.3. MODBUS Special Register Map ..............40 13.4. MODBUS Reference ................46 14. Troubleshooting ..................47 Beijer Electronics, Doc ID: 112331 2025-02...

  • Page 5: About This Manual

    About This Manual 1. About This Manual This manual contains information on the software and hardware features of the Beijer Electronics GN-9251 Network Adapter Module. It provides in-depth specifications, guidance on installation, setup, and usage of the product. 1.1. Symbols Used in This Manual This publication includes Warning, Caution, Note and Important icons where appropriate, to point out safety-related, or other important information.

  • Page 6: Safety

    Before using this product, please read this manual and other relevant manuals carefully. Pay full attention to safety instructions! In no event will Beijer Electronics be responsible or liable for damages resulting from the use of this product. The images, examples and diagrams in this manual are included for illustrative purposes. Because of the many variables and requirements associated with any particular installation, Beijer Electronics cannot take responsibility or liability for actual use based on the examples and diagrams.

  • Page 7: About The G-Series System

    IP, EtherCAT, PROFINET, CC-Link IE Field, PROFIBUS, CANopen, DeviceNet, CC-Link, MODBUS/Serial etc. • Expansion Module - Expansion module types: Digital IO, Analog IO, and Special modules. • Messaging - The system uses two types of messaging: Service messaging and IO messaging. Beijer Electronics, Doc ID: 112331 2025-02...

  • Page 8: Io Process Data Mapping

    Valid parameter data depends on the modules in use. For example, analog modules have settings of either 0-20 mA or 4-20 mA, and temperature modules have settings such as PT100, PT200, and PT500. The documentation for each module provides a description of the parameter data. 2025-02 Beijer Electronics, Doc ID: 112331...

  • Page 9: Specifications

    Max. current field Max. DC 10 A power contact Wiring IO cable max. 2.0 mm (AWG 14) Torque 0.8 Nm (7 lb-in) Weight 162 g Dimensions 54 mm x 99 mm x 70 mm Beijer Electronics, Doc ID: 112331 2025-02...

  • Page 10: Communication Interface Specification

    MODBUS/TCP, MODBUS/UDP, HTTP,DHCP, 10 TCP connections. Max. bus line length Up to 100 m from ethernet hub/switch with twisted CAT5 UTP/STP. Max. network nodes Limited by ethernet specification. Baud rate 10/100 Mbps, auto-negotiation, full duplex. 2025-02 Beijer Electronics, Doc ID: 112331...
  • Page 11 1 green: Exchange data/Traffic present (ACTIVE) 1 green/red: Expansion IO module status (IOS) 1 green: System power status 1 green: Field power status Module location Starter module left side of G-series system Field power About 14 VDC Ddetection Beijer Electronics, Doc ID: 112331 2025-02...

  • Page 12: Wiring Diagram

    System power, 24 V System Power, ground Frame ground Frame ground Field power, ground Field power, ground Field power, 24 V Field power, 24 V WARNING Never connect system power to field power! Use separate power supplies. 2025-02 Beijer Electronics, Doc ID: 112331...

  • Page 13: Led Indicator

    Not powered or not linked Device may not be powered. Adapter physical connected Green Adapter ethernet controller physically connected. 6.3. ACTIVE (Exchange Data/Traffic Present) Status Indicates Not powered Device is idle or may not be powered. Beijer Electronics, Doc ID: 112331 2025-02...

  • Page 14: Ios (G-Bus Status)

    • Mismatch vendor code between adapter and expansion module. 6.5. Field Power / System Power Status Indicates Not supplied field power, system power Not supplied 24 VDC field power. Supplied field power, system power Green Supplied 24 VDC field power. 2025-02 Beijer Electronics, Doc ID: 112331...

  • Page 15: Socket

    RJ-45 Socket 7. RJ-45 Socket For information on network installation, refer to chapter Network Installation. RJ-45 Signal name Description Transmit + Transmit - Receive + Receive - Case Shield Beijer Electronics, Doc ID: 112331 2025-02...

  • Page 16: Dip Switch

    = ON: Enable DHCP/BOOTP * = ON: Use lowest IP address with IP_DIP value ** * DHCP/BOOTP have to be set in special register 0x1045 (default 0 : BOOTP). ** Also see chapter Setup IP-Address using Dip Switch. 2025-02 Beijer Electronics, Doc ID: 112331...

  • Page 17: Rs232 Port For Modbus/Rtu, Touch Panel Or Io Guide

    RS232 Port for MODBUS/RTU, Touch Panel or IO Guide 9. RS232 Port for MODBUS/RTU, Touch Panel or IO Guide Pin no. Signal name Description Reserved RS232 TXD RS232 RXD RS232 GND Beijer Electronics, Doc ID: 112331 2025-02...

  • Page 18: Hardware Setup

    Installation position is valid vertical and horizontal. The drawings are illustrative and may be out of proportion. CAUTION NOT following the space requirements may result in damaging the product. 2025-02 Beijer Electronics, Doc ID: 112331...

  • Page 19: Mount Module To Din Rail

    • GT-5XXX • GT-7XXX GN-9XXX modules have three locking levers, one at the bottom and two on the side. For mounting instructions, refer to Mount GN-9XXX Module. Mount to DIN rail Dismount from DIN rail Beijer Electronics, Doc ID: 112331 2025-02...
  • Page 20 Hardware Setup 10.2.2. Mount GN-9XXX Module To mount or dismount a network adapter or programmable IO module with the product name GN-9XXX, for example GN-9251 or GN-9371, see the following instructions: Mount to DIN rail Dismount from DIN rail 2025-02 Beijer Electronics, Doc ID: 112331...

  • Page 21: Mount Removable Terminal Block

    Hardware Setup 10.3. Mount Removable Terminal Block To mount or dismount a removable terminal block (RTB), see the instructions below. Mount a removable terminal block Dismount a removable terminal block Beijer Electronics, Doc ID: 112331 2025-02...

  • Page 22: Connect Cables To Removable Terminal Block

    To connect/disconnect cables to/from the removable terminal block (RTB), see the instructions below. WARNING Always use the recommended supply voltage and frequency to prevent damage to the equipment and ensure optimal performance. Connect cable Disconnect cable 2025-02 Beijer Electronics, Doc ID: 112331...

  • Page 23: Field Power And Data Pins

    If the total network distance exceeds 100 meters, it is necessary to incorporate at least one unmanaged switch to extend the network length. This remains applicable even when ethernet network cables are connected sequentially from one adapter to the next. Beijer Electronics, Doc ID: 112331 2025-02...
  • Page 24 Hardware Setup 2025-02 Beijer Electronics, Doc ID: 112331...

  • Page 25: Ip-Address Setup

    IP-Address setup that can be used with a third party BOOTP/DHCP server. 11.2. Setup IP-Address using Dip Switch If the adapter DIP Pole#10 is ON, lowest IP address is set by DIP Pole#1 - #8 manually. For more information, see chapter Dip Switch. Beijer Electronics, Doc ID: 112331 2025-02...
  • Page 26 IP-Address Setup Examples of adapter IP-Address setup using the dip switch 2025-02 Beijer Electronics, Doc ID: 112331...

  • Page 27: Bacnet Interface

    • Ability to respond to requests for information about any of its objects. • Ability to respond to communication control messages. 12.3. BACnet Interoperability Building Blocks (BIBBs) BACnet Interoperability Building Blocks (BIBBs) are collections of one or more BACnet services. Beijer Electronics, Doc ID: 112331 2025-02...

  • Page 28: Bacnet Standard Object Types Supported

    The maximum number of object creation supported is 256. Example: Channel 3 of the GT-4118 module / Configured in the third slot / Analog input instance 19. 2025-02 Beijer Electronics, Doc ID: 112331...
  • Page 29 Protocol_Revision Unsigned Protocol_Services_Supported BACnetServices Supported Protocol_Object_Types_Supported BACnetObjectTypes Supported Object_List BACnetARRAY[N] of BACnetObjectIdentifier APDU_Timeout Unsigned 3000 Number_Of_APDU_Retries Unsigned Max_APDU_Length_Accepted Unsigned Segmentation_Supported BACnetSegmentation Device_Address_Binding BACnetLIST of BACnetAddressBinding Database_Revision Unsigned Release_Date CharacterString (Nonstandard Types ID : 610) Beijer Electronics, Doc ID: 112331 2025-02...
  • Page 30 A "binary input" is a physical device or hardware input that can be in only one of two distinct states. In this description, those states are referred to as ACTIVE and INACTIVE. This object is connected to Digital Input IO (GT-1XXX) module data. 2025-02 Beijer Electronics, Doc ID: 112331...
  • Page 31 GBUS Direct Object Type contains information on Network Adapter and GBUS configuration value. The instance value is only 0. Property ID (741) Data type Default value Writable Object_Identifier BACnetObjectIdentifier 741, 0 Object_Name CharacterString GBUS Direct Object_Type BACnetObjectType Slot Name CharacterString Input Size (byte) Unsigned Beijer Electronics, Doc ID: 112331 2025-02...

  • Page 32: Bacnet Reference

    Octet String Slot Type CharacterString Release_Date CharacterString IO Parameter Octet String 12.5. BACnet Reference Latest information on BACnet: http://www.bacnet.org ASHRAE website: https://www.ashrae.org BACnet international / BACnet testing laboratories: https://www.bacnetinternational.org Visual test shell for BACnet: https://sourceforge.net/projects/vts 2025-02 Beijer Electronics, Doc ID: 112331...

  • Page 33: Modbus Interface

    * 16. 13.1.2. Example of Input Process Image (Input Register) Map Input image data depends on slot position and expansion slot data type. Input process image data is only ordered by expansion slot position. Beijer Electronics, Doc ID: 112331 2025-02...
  • Page 34 Discrete Input 8 pts (Slot#8) 13.1.3. Example of Output Process Image (Output Register) Map Output image data depends on slot position and expansion slot data type. Output process image data is only ordered by expansion slot position. 2025-02 Beijer Electronics, Doc ID: 112331...
  • Page 35 Analog Output Ch2 low byte (Slot#8) 0x080A Analog Output Ch3 high byte (Slot#8) Analog Output Ch3 low byte (Slot#8) 0x080B Discrete Output low 8 pts (Slot#10) Discrete Ou (Slot#9) 0x080C Discrete Output high 8 pts (Slot#10) Beijer Electronics, Doc ID: 112331 2025-02...

  • Page 36: Supported Modbus Function Codes

    This function code is used to write a single holding register in register (write a remote device. Therefore register numbered 1 is addressed one word as 0. The normal response is an echo of the request, returned output) after the register contents have been written. 2025-02 Beijer Electronics, Doc ID: 112331...
  • Page 37 Data field (response) Description 0x0000(0) Echo request data The data passed in the request data field is to be returned (looped back) in the response. The entire response message should be identical to the request. Beijer Electronics, Doc ID: 112331 2025-02...
  • Page 38 The response data field returns the quantity of MODBUS exception responses returned by the remote device since its last restart, clear counters operation, or power–up. Exception responses are described and listed in chapter Error Response below. 2025-02 Beijer Electronics, Doc ID: 112331...
  • Page 39 Specialized use in conjunction with programming commands. The server (or slave) is engaged in processing a long–duration program command. The client (or master) should retransmit the message later when the server (or slave) is free. Beijer Electronics, Doc ID: 112331 2025-02...

  • Page 40: Modbus Special Register Map

    NOTE GN-9251 response exception code 01, 02, 03, 04 and 06. 13.3. MODBUS Special Register Map The special register map can be accessed by function code 3, 4, 6 and 16, see chapter...
  • Page 41 1 word Enable/disable auto recovery watchdog error Write when receiving new frame. 0: Disable, 1: Enable (default). Value is stored in EEPROM. 0x1028(4136) Read 1 word IO update time, main loop time (unit: 1 us). Beijer Electronics, Doc ID: 112331 2025-02...
  • Page 42 Size of input image word register. 0x1105(4357) Read 1 word Size of output image word register. 0x1106(4358) Read 1 word Start address of input image bit = 0x0000 0x1107(4359) Read 1 word Start address of output image bit =0x1000 2025-02 Beijer Electronics, Doc ID: 112331...
  • Page 43 Current dip switch state and field power status (MSB). Example: DHCP/Booth enable, Dip SW(0x01). Field Power On = 0x8101 0x110E(4366) Read Up to Expansion slot’s GT-number including GN. First 1 word is the adapter’s number. If GN-9251, then words 0x9251. 0x1110(4368) Read 1 word Number of expansion slot.
  • Page 44 ……. 0x27CB(10187) + 0x0C(+12) 0x200C(8204) 0x202C(8236) 0x204C(8268) 0x206C(8300) ……. 0x27CC(10188) + 0x0D(+13) 0x200D(8205) 0x202D(8237) 0x204D(8269) 0x206D(8301) ……. 0x27CD(10189) + 0x0E(+14) 0x200E(8206) 0x202E(8238) 0x204E(8270) 0x206E(8302) ……. 0x27CE(10190) + 0x0F(+15) 0x200F(8207) 0x202F(8239) 0x204F(8271) 0x206F(8303) ……. 0x27CF(10191) 2025-02 Beijer Electronics, Doc ID: 112331...
  • Page 45 Valid character size = 0x001E = 30 characters, "GT-1238, 8DI, 24Vdc, Universal". + 0x10(+16) Read 1 word Size of configuration parameter byte. + 0x11(+17) ** Read/ x words Read/write Configuration parameter data, up Write to 8 byte. Beijer Electronics, Doc ID: 112331 2025-02...

  • Page 46: Modbus Reference

    * After the system is reset, the new “Set Value” action is applied. ** Nothing of output, input, and memory or configuration parameter corresponding slot returns Exception 02. 13.4. MODBUS Reference MODBUS reference documents: www.modbus.org MODBUS tools: www.modbustools.com (modbus poll), www.win-tech.com (modscan32) 2025-02 Beijer Electronics, Doc ID: 112331...

  • Page 47: Troubleshooting

    • Check baud rate setting. left. • Check the communication cable. • Contact sales team and send module for repair. • Other than listed in the • Check the field power connection. Field Power / left. Beijer Electronics, Doc ID: 112331 2025-02...
  • Page 48 • Check the following settings: • Configuration of baud rate communication. • IO size. • Configuration of each node. Ground and environment • Check that ground is connected. • Check that all environment factors (temperature, humidity, etc). 2025-02 Beijer Electronics, Doc ID: 112331...