Bender COMTRAXX COM462RTU Manual

Bender COMTRAXX COM462RTU Manual

Bms-modbus rtu gateway
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COMTRAXX® COM462RTU
BMS-Modbus RTU gateway for the connection of BMS-capable Bender
devices to the Modbus RTU
Software version: D0415 V1.2x
COM462RTU_D00010_04_M_XXDE / 06.2021
Manual EN

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Summary of Contents for Bender COMTRAXX COM462RTU

  • Page 1 COMTRAXX® COM462RTU BMS-Modbus RTU gateway for the connection of BMS-capable Bender devices to the Modbus RTU Software version: D0415 V1.2x COM462RTU_D00010_04_M_XXDE / 06.2021 Manual EN...
  • Page 2 Service and support for Bender products First-level support Technical support Carl-Benz-Strasse 8 • 35305 Grünberg • Germany Telephone: +49 6401 807-760 0700BenderHelp * Fax: +49 6401 807-629 E-mail: support@bender-service.de Available on 365 days from 7.00 a.m. to 8.00 p.m. (MEZ/UTC +1) * Landline German Telekom: Mon-Fri from 9.00 a.m.
  • Page 3: Table Of Contents

    Signs and symbols ......................5 Training courses and seminars.................5 Delivery conditions .......................5 Inspection, transport and storage ................6 Warranty and liability....................6 Disposal of Bender devices ..................6 Safety ..........................7 Product description ................8 Intended use ........................8 Address setting and termination ................8 Scope of delivery ......................8 Short description ......................8...
  • Page 4 Modbus process image in the memory of the COM462RTU .. 21 Querying data ......................21 6.1.1 Modbus function code ..................... 21 6.1.2 How are the memory areas organised? ............. 21 Memory scheme of the process image .............. 22 6.2.1 BMS device address assignment on the Modbus .......... 22 6.2.2 Memory scheme of an individual BMS device ..........
  • Page 5: General Instructions

    > Know-how-> Seminars. Delivery conditions The conditions of sale and delivery set out by Bender apply. These can be obtained from Bender in printed or electronic format. The following applies to software products: “Software clause in respect of the licensing of standard software as part of...
  • Page 6: Inspection, Transport And Storage

    • Non-observance of technical data. • Repairs carried out incorrectly. • Use of accessories and spare parts not recommended by Bender. • Catastrophes caused by external influences and force majeure. • Mounting and installation with device combinations not recommended by the manufacturer.
  • Page 7: Safety

    COMTRAXX® COM462RTU Safety If the device is used outside the Federal Republic of Germany, the applicable local standards and regulations must be complied with. In Europe, the European standard EN 50110 applies. ! Risk of electrocution due to electric shock! anger Touching live parts of the system carries the risk of •...
  • Page 8: Product Description

    Product description Intended use The BMS-Modbus RTU gateway COM462RTU connects the serial Bender BMS bus to the serial Modbus RTU. The gateway converts alarms, measured values and statuses from the BMS bus to Modbus RTU. Control commands can be converted from Modbus RTU to BMS bus.
  • Page 9: Device Features

    Possible applications • The use of professional visualisation programs by converting BMS data to Modbus RTU protocols. • Observing and analysing Bender products that support communication, such as RCMS, EDS and MEDICS® systems. Details about the Modbus RTU The Modbus RTU (Remote Terminal Unit) field bus has been specified by Modicon, a company under the Schneider Automation brand and made available to the market license-free.
  • Page 10: Installation, Connection And Commissioning

    3. Is the Modbus RTU address to be set known? COM462RTU on the internal BMS bus Bender systems such as EDS46x/49x, RCMS46x/49x and MEDICS communicate with each other via the Bender measuring device interface BMS. The BMS-Modbus RTU gateway COM462RTU provides the coupling between the BMS bus and Modbus RTU networks.
  • Page 11: Installing The Device

    The majority of Bender devices communicate via the internal BMS bus. Individual devices, such as MK800, TM800 or Bender panels can communicate via both the internal BMS bus (BMS i) and the external BMS bus (BMS e). The BMS-Modbus RTU gateway COM462RTU can only communicate via the internal BMS bus (BMS i).
  • Page 12 Installation, connection and commissioning Connect the terminals and sockets on the COM462RTU according to the wiring diagram. A1 A2 INFO ALARM MENU BMS-Bus Modbus/RTU RS-485 RS-485 Terminal Description Connection to the supply voltage, 6 A fuse recommended, two-pole fuses should be used in IT systems. A1, A2 For UL and CSA applications, it is mandatory to use 5 A fuses.
  • Page 13: Commissioning

    COMTRAXX® COM462RTU Commissioning 1. Apply the supply voltage to the COM462RTU. The green "ON" LED lights up. 2. Set language and time. 3. Set the BMS bus. The COM462RTU is operated on the internal BMS bus. 4. Set the Modbus RTU. For details about the settings, refer to the chapter „Settings on the device“...
  • Page 14: Operation And Configuration

    Operation and configuration Operation and configuration Display and operating elements COM462 INFO COMTRAXX® ALARM MENU Legend "ON“ LED lights when supply voltage is applied. "COM" LED lights when the gateway is responding to BMS requests. "ALARM“ LED, lights to signal an internal device error on the COM462RTU. "INFO"...
  • Page 15: Display In Standard Mode

    COMTRAXX® COM462RTU 4.1.2 Display in standard mode Network-related parameters will be indicated. CO M 4 6 2R T U Ad dr e s s :1 M o d b us :240 2 2. 0 6. 2 0 13 12: 34 Legend Device type BMS address of the COM462RTU...
  • Page 16: Factory Settings

    Operation and configuration Menu item Function Page Exit Exit menu mode 1. Settings Make the necessary settings for this device 2. Info Display information on device type and firmware versions. The same informa- tion as indicated in the standard mode when pressing the "INFO"...
  • Page 17 CEST = Automatic switchover, Central Europe on = Set time zone +1 h 5. Password 1. Password Enter/change password: 0…999 2. Status Enable/disable password protection for parameter setting via the buttons of the COM462RTU 6. Service For authorised Bender Service personnel only. COM462RTU_D00010_04_M_XXDE / 06.2021...
  • Page 18: Display Info List

    Operation and configuration Display INFO list Open the "INFO" menu: • In standard mode: press the "INFO" button or • In menu mode: select function "2. Info" CO M 4 62 R T U Ad dr e s s : 1 D e vi c e : B 9 5061022 S : 0 12 3 45 6 789 This menu displays information about the device and the software.
  • Page 19: Data Access Using Modbus Rtu Protocol

    COMTRAXX® COM462RTU Data access using Modbus RTU protocol Request to the COM462RTU are sent using the function code 0x03 (Read Holding Registers). The COM462RTU generates a function-related response and returns it. Exception code If a request cannot be answered for whatever reason, the COM462RTU sends a so-called exception code with which possible faults can be narrowed down.
  • Page 20: Modbus Responses

    Data access using Modbus RTU protocol Modbus responses The responses consist of 2 bytes per register. Byte Name Example Byte 0 BMS address of the COM462RTU 0x02 Byte 1 Function code 0x03 Byte 2 Number of data bytes 0x04 Byte 3…6 Information 0xAB CD 01 23 Byte 7, 8...
  • Page 21: Modbus Process Image In The Memory Of The Com462Rtu

    COMTRAXX® COM462RTU Modbus process image in the memory of the COM462RTU The device holds a process image in memory. This image represents the current statuses and values of up to 150 BMS devices for each monitored internal BMS bus. Querying data 6.1.1 Modbus function code The memory in the COM462RTU can be read using the Modbus function 0x03 (Read Holding Registers).
  • Page 22: Memory Scheme Of The Process Image

    Modbus process image in the memory of the COM462RTU Memory scheme of the process image 6.2.1 BMS device address assignment on the Modbus As illustrated in the table, the Modbus start address for the respective process image is derived from the BMS device address. 256 (0x100) Words or 512 bytes are reserved for each BMS device. They contain all the information requested and transmitted from the bus.
  • Page 23 COMTRAXX® COM462RTU Example: In our example, channel 2 of the device with BMS address 3 is queried. How is the start address determined for querying the channel? In our example, the relevant cells in the table are marked bold. 1. The first address part 0x03 (HiByte) is applied from table 6.1 for BMS device address 3. 2.
  • Page 24: Device Type

    Modbus process image in the memory of the COM462RTU Memory image of a BMS device Tab. 6–2 Modbus address assignment of the channels in a BMS device; Hex representation: horizontal = units, vertical = sixteens Abbreviations for memory contents: C = Common alarm D = Device lost (device failure) R.
  • Page 25: Common Alarm And Device Failure

    COMTRAXX® COM462RTU 6.2.5 Common alarm and device failure C = Common alarm and D = Device lost (device failure) Word 0x0E HiByte HiByte Common alarm, 1 byte: Device error, 1 byte: LSB = 0 or 1 LSB = 0 or 1 The common alarm bit is set as soon as an alarm status from the respective BMS device is detected.
  • Page 26: At&T = Alarm Type And Test Type (Internal/External)

    Modbus process image in the memory of the COM462RTU 6.2.6.2 AT&T = Alarm type and test type (internal/external) 7 6 5 4 3 Meaning No alarm Prewarning Device error Reserved Alarm (yellow LED), e.g. insulation fault Alarm (red LED) Reserved …...
  • Page 27: R&U = Bereich Und Einheit

    COMTRAXX® COM462RTU 6.2.6.3 R&U = Bereich und Einheit Bedeutung Invalid (init) No unit Ω Baud °C °F Second Minute Hour Month … … … … … Reserved CODE Reserved … … … … … Reserved Reserved Actual value The actual value is lower The actual value is higher Invalid value The units of the bits 0 to 4 are coded.
  • Page 28: Channel Description

    Modbus process image in the memory of the COM462RTU 6.2.6.4 Channel description deci- Byte Meaning 15 14 13 12 11 10 9 Reserved Insulation fault Overload Overtemperature Failure line 1 Failure line 2 Insulation OP light Reserved Failure distribution board Oxygen Vacuum Anaesthetic gas...
  • Page 29: Channel 33 To 64

    COMTRAXX® COM462RTU 6.2.6.5 Channel 33 to 64 7 6 5 4 3 Meaning No alarm Prewarning Device error Reserved Alarm (yellow LED), e.g. insulation fault Alarm (red LED) Reserved … … … Reserved Reserved No test Internal test External test The BMS channels 33 to 64 only provide digital information.
  • Page 30: Address Assignment Of The Reference Data Record

    Modbus process image in the memory of the COM462RTU 6.3.1 Address assignment of the reference data record As shown in the following table, the Modbus start address for access to the reference data record is derived from BMS device address 0. Modbus addresses for reference data record Virtual Word...
  • Page 31: Explanation Of How To Access Floating Point Values

    COMTRAXX® COM462RTU 6.3.4 Explanation of how to access floating point values The test value 12.34 can be read out via Modbus RTU using Modbus function 0x03 at the address 0x0014. The test value has a size of 2 words. Proceed as follows: 1.
  • Page 32 Modbus process image in the memory of the COM462RTU Measured value description Value alarm message Note operating message 10 (0x0A) Failure vacuum 11 (0x0B) Anaesthetic gas 12 (0x0C) Compressed air 5 bar 13 (0x0D) Compressed air 10 bar 14 (0x0E) Failure nitrogen 15 (0x0F) Failure CO2...
  • Page 33 COMTRAXX® COM462RTU Measured value description Value alarm message Note operating message 66 (0x42) 67 (0x43) Function test till: Date 68 (0x44) Service till: Date 69 (0x45) Ins.fault locat Insulation fault location 70 (0x46) Peak Fault EDS system 71 (0x47) Insulation fault Insulation resistance in Ω...
  • Page 34 Modbus process image in the memory of the COM462RTU Measured value description Value alarm message Note operating message 104 (0x68) No CT connected 105 (0x69) Short temp.sensor Temperature sensor short-circuit 106 (0x6A) Temp.sensor open. Connection temperature sensor 107 (0x6B) Fault contactor K1 108 (0x6C) Fault contactor K2 109 (0x6D)
  • Page 35 COMTRAXX® COM462RTU Measured value description Value alarm message Note operating message 137 (0x89) Short circuit Q1 138 (0x8A) Short circuit Q2 139 (0x8B) CV460 CV460 fault 140 (0x8C) RK4xx Fault RK4xx 141 (0x8D) Address collision BMS address has been assigned several times 142 (0x8E) Invalid address 143 (0x8F)
  • Page 36 Modbus process image in the memory of the COM462RTU Value Description of parameters Parameter/measured value invalid. 1023 (0x3FF) The menu item of this parameter is not displayed. 1022 (0x3FE) No measured value/no message 1021 (0x3FD) Measured value/parameter inactive Measured value/parameter only temporarily inactive 1020 (0x3FC) (e.g.
  • Page 37: Modbus Control Commands

    COMTRAXX® COM462RTU Modbus control commands Commands can be sent to BMS devices by an external application (e.g. visualisation software). Control via Modbus can be enabled or disabled in the browser menu „1. Settings“ > „2. Modbus“ > „4. Control“. Command structure (example) Example: system setup: BMS addr.
  • Page 38 Modbus process image in the memory of the COM462RTU Answer: Byte Name Example Byte 0 Modbus address of the COM462RTU Byte 1 Function code Byte 2, 3 Start register FC 00 Byte 4, 5 Number of registers 00 04 Byte 6, 7 CRC16 Checksum F1 A9 Register addresses for writing.
  • Page 39 COMTRAXX® COM462RTU Control commands for the internal BMS bus: Register Register Register Ext Register Int control Function channel command 1-150 Test Isometer Test changeover 1-150 device PRC Start automatic test changeover 1-150 1->2. End after time T(test) Start test generator 1-150 without changeover 1-150...
  • Page 40: Technical Data

    Technical data Technical data ( )* = factory settings Tabular data Insulation coordination acc. to IEC 60664-1 Rated insulation voltage ..............................AC 250 V Rated impulse withstand voltage/pollution degree ......................4 kV/3 Supply voltage Supply voltage U ............................See ordering details Frequency range U ............................See ordering details Power consumption ............................See ordering details...
  • Page 41: Dimension Diagram

    COMTRAXX® COM462RTU Classification of mechanical conditions acc. to IEC 60721: Stationary use (IEC 60721-3-3) ............................3M11 Transport (IEC 60721-3-2) ..............................2M4 Long-term storage (IEC 60721-3-1) ............................. 1M12 Connection Connection type ............................screw-type terminals Connection properties: Rigid/flexible ........................0,2…4/0,2…2,5 mm (AWG 24…12) Multi-conductor connection (2 conductors with the same cross section): Rigid/flexible ............................
  • Page 42: Standards, Approvals, Certifications

    Technical data Standards, approvals, certifications For information about UL applications refer to Seite 11. Other interface protocols Connection to SCADA systems (Supervisory Control and Data Acquisition) and/or PLCs via OPC, BACnet or other protocols on request. Ordering details Supply voltage/ Power Type Zulassungen...
  • Page 43: Troubleshooting

    COMTRAXX® COM462RTU Troubleshooting Malfunctions If the COM462RTU causes malfunctions in the connected networks, please refer to this operating manual. What should be checked? Check whether … • the device is supplied with the correct supply voltage. • the BMS bus cable is correctly connected and terminated (120 Ω). •...
  • Page 44 Nachdruck und Vervielfältigung Reprinting and duplicating nur mit Genehmigung des Herausgebers. only with permission of the publisher. Bender GmbH & Co. KG Bender GmbH & Co. KG Postfach 1161 • 35301 Grünberg • Deutschland PO Box 1161 • 35301 Grünberg • Germany Londorfer Str.

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