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Bender COMTRAXX COM462RTU Manual

Bender COMTRAXX COM462RTU Manual

Bms-modbus rtu gateway for the connection of bms-capable bender devices to the modbus rtu
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COMTRAXX® COM462RTU
BMS-Modbus RTU gateway for the connection
of BMS-capable Bender devices
to the Modbus RTU
Software version: D415 V1.2x
COM462RTU_D00010_03_M_XXEN/04.2018

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  • Page 1 Manual COMTRAXX® COM462RTU BMS-Modbus RTU gateway for the connection of BMS-capable Bender devices to the Modbus RTU Software version: D415 V1.2x COM462RTU_D00010_03_M_XXEN/04.2018...
  • Page 2 Bender GmbH & Co. KG P.O. Box 1161 • 35301 Grünberg • Germany Londorfer Str. 65 • 35305 Grünberg • Germany Tel.: +49 6401 807-0 • Fax: +49 6401 807-259 E-mail: info@bender.de • www.bender.de © Bender GmbH & Co. KG All rights reserved.

  • Page 3: Table Of Contents

    Table of Contents 1. Important information ..................7 How to use this manual ................. 7 Technical support: Service and support ..........8 1.2.1 First level support ..................... 8 1.2.2 Repair service ..................... 8 1.2.3 Field service ......................9 Training courses ....................9 Delivery conditions ..................
  • Page 4 Table of Contents Installing the device ..................19 Connecting the device ................20 Commissioning ....................22 5. Operation and configuration ..............23 Display and operating elements .............. 23 5.1.1 Automatic contrast setting for the display .......... 24 5.1.2 Display in standard mode ................24 5.1.3 Display in menu mode ................
  • Page 5 Table of Contents 7.2.6.2 AT&T = Alarm type and test type (internal/external) ....41 7.2.6.3 R&U = Range and unit ................. 43 7.2.6.4 Channel description ................45 7.2.6.5 Channel 33 to 64 ................... 46 Reference data records of the process image ........47 7.3.1 Address assignment of the reference data record ......
  • Page 6 Table of Contents COM462RTU_D00010_03_M_XXEN/04.2018...

  • Page 7: Important Information

    1. Important information 1.1 How to use this manual This manual is intended for qualified personnel working in electrical engineering and electronics! Always keep this manual within easy reach for future reference. To make it easier for you to understand and revisit certain sections in this man- ual, we have used symbols to identify important instructions and information.

  • Page 8: Technical Support: Service And Support

    Important information This manual has been compiled with great care. It might nevertheless contain errors and mistakes. Bender cannot accept any liability for injury to persons or damage to property resulting from errors or mistakes in this manual. 1.2 Technical support: Service and support For commissioning and troubleshooting Bender offers you: 1.2.1...

  • Page 9: Field Service

    **Mon-Thurs 7.00 a.m. - 8.00 p.m., Fr 7.00 a.m. - 13.00 p.m. 1.3 Training courses Bender is happy to provide training regarding the use of test equipment. The dates of training courses and workshops can be found on the Internet at www.bender-de.com ->...

  • Page 10: Inspection, Transport And Storage

    ZVEI (Zentralverband Elektrotechnik- und Elektronikindustrie e.V.) (German Electrical and Electronic Manufacturers' Association) also applies. Sale and delivery conditions can be obtained from Bender in printed or elec- tronic format. 1.5 Inspection, transport and storage Inspect the dispatch and equipment packaging for damage and compare the contents of the package with the delivery documents.

  • Page 11: Disposal

    13th August 2005 must be taken back by the manufacturer and disposed of properly. For more information on the disposal of Bender devices, refer to our homepage at www.bender-de.com -> Service & support.
  • Page 12 Important information Using the Modbus RTU functions Information about this field can be found from page 29 onwards. COM462RTU_D00010_03_M_XXEN/04.2018...

  • Page 13: Safety Instructions

    2. Safety instructions 2.1 General safety instructions Part of the device documentation in addition to this manual is the enclosed " Safety instructions for Bender products". 2.2 Work activities on electrical installations Only qualified personnel are permitted to carry out the work necessary to install, commission and run a device or system.

  • Page 14: Intended Use

    Safety instructions 2.3 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 15: Product Description

    BMS devices and measured values read. 3.4 Possible applications The use of professional visualisation programs by converting BMS data   to Modbus RTU protocols. Observing and analysing Bender products that support communica-   tion, such as RCMS, EDS and MEDICS® systems. COM462RTU_D00010_03_M_XXEN/04.2018...

  • Page 16: Details About The Modbus Rtu

    Product description 3.5 Details about the Modbus RTU The Modbus RTU (Remote Terminal Unit) field bus has been specified by Mod- icon, a company under the Schneider Automation brand and made available to the market license-free. Modbus uses the serial hardware interface RS-485 and communicates via a two-wire, twisted copper wire.

  • Page 17: Installation, Connection And Commissioning

    4. Installation, connection and commissioning Only qualified personnel are permitted to carry out the work necessary to install, commission and run a device or system. Risk of electrocution due to electric shock! Touching live parts of the system carries the risk of: An electric shock ...

  • Page 18: Com462Rtu On The Internal Bms Bus

    4.2 COM462RTU on the internal BMS bus Bender systems such as EDS46x/49x, RCMS46x/49x and MEDICS communi- cate 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. The following block diagram illus- trates the operation of the gateway in an internal BMS bus.

  • Page 19: Installing The Device

    Installation, connection and commissioning Internal and external BMS bus 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).

  • Page 20: Connecting The Device

    Installation, connection and commissioning 4.4 Connecting the device For UL applications, the following is to be observed: – Supply voltage U : see nameplate and ordering details – Maximum ambient temperature: 55°C – For use in pollution degree 2 environments –...
  • Page 21 Installation, connection and commissioning Terminal Description Connection to the supply voltage, 6 A fuse recommended, A1, A2 two-pole fuses should be used in IT systems. For UL and CSA applications, it is mandatory to use 5 A fuses. Connection to the BMS bus (internal) with shielded cable A, B (e.g.

  • Page 22: Commissioning

    Installation, connection and commissioning 4.5 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 23: Operation And Configuration

    5. Operation and configuration 5.1 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.

  • Page 24: Automatic Contrast Setting For The Display

    Operation and configuration 5.1.1 Automatic contrast setting for the display The display contrast control is factory set to an optimum value. In exceptional cases, it may be necessary to adjust the contrast manually. Press and hold the buttons "ESC" and "↵" simultaneously. All available con- trast modes are continuously indicated in an infinite loop: minimum contrast, maximum contrast, no contrast (lasting some seconds), then the same cycle starts again.

  • Page 25: Display In Menu Mode

    Operation and configuration 5.1.3 Display in menu mode Use the "MENU" button to switch to the Menu mode. E x it 1. S e t t ings 2. I nfo A blinking cursor supports menu navigation. You can access the individual menus by means of the "" or "" but- ...

  • Page 26: Settings On The Device

    Operation and configuration 5.3 Settings on the device The menu is divided into three levels. All menu items listed in the table can be called up via the main menu item "1. Settings" in the top menu level. All con- trol buttons are explained on page 23.
  • Page 27 Operation and configuration Menu Menu Factory Description level 2 level 3 setting 2. Modbus 1. Address Set the Modbus RTU address for COM462RTU: 2…247 2. Baud rate 19200 Set the baud rate 3. Parity even Set the parity 4. Control Switch on or switch off the control commands via Modbus 3.

  • Page 28: Display Info List

    Factory Description level 2 level 3 setting 6. Service For authorised Bender Service personnel only. 5.4 Display INFO list Open the "INFO" menu: In standard mode: press the "INFO" button or   In menu mode: select function "2. Info"...

  • Page 29: Data Access Using Modbus Rtu Protocol

    6. Data access using Modbus RTU protocol Request to the COM462RTU are sent using the function code 0x03 (read sev- eral registers). The COM462RTU generates a function-related response and re- turns it. 6.1 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 30: Modbus Requests

    Data access using Modbus RTU protocol 6.2 Modbus requests The required words of the process image can be read from the "Holding regis- ters" in the COM462RTU using the function code 0x03. For this purpose, the start address and the number of the registers to be read out have to be entered. A complete bus image including all devices and device parameters is stored in these "Holding registers".

  • Page 31: Structure Of The Exception Code

    Data access using Modbus RTU protocol 6.4 Structure of the exception code Byte Name Example Byte 0 BMS address of the COM462RTU 0x02 Byte 1 Function code (0x03) + 0x80 0x83 Byte 2 Data 0x04 Byte 3, 4 CRC16 0x12 34 6.5 Modbus address structure for BMS devices Number of Number of...
  • Page 32 Data access using Modbus RTU protocol COM462RTU_D00010_03_M_XXEN/04.2018...

  • Page 33: Modbus Process Image In The Memory Of The Com462Rtu

    7. Modbus process image in the memory of the COM462RTU The device holds a process image in memory. This image represents the cur- rent statuses and values of up to 150 BMS devices for each monitored internal BMS bus. 7.1 Querying data 7.1.1 Modbus function code The memory in the COM462RTU can be read using the Modbus function 0x03...
  • Page 34 Modbus process image in the memory of the COM462RTU In some Modbus clients, an offset of 1 must be added to the register addresses. Example: process image start address = 0x0101. The assignment of the memory addresses and the associated memory con- tent is described below.

  • Page 35: Memory Scheme Of The Process Image

    Modbus process image in the memory of the COM462RTU 7.2 Memory scheme of the process image 7.2.1 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.

  • Page 36: Memory Scheme Of An Individual Bms Device

    Modbus process image in the memory of the COM462RTU 7.2.2 Memory scheme of an individual BMS device BMS devices feature various types of analogue and/or digital channels. Please take into consideration that there are device-specific differences: BMS devices usually feature 12 channels ...
  • Page 37 Modbus process image in the memory of the COM462RTU Memory image of a BMS device --------------------------- Device type ----------------------- ---- Time stamp ---- C D R. Channel 1 Channel 2 Channel 3 Channel 4 Channel 5 Channel 6 Channel 7 Channel 8 Channel 9 Channel 10...

  • Page 38: Device Type

    Modbus process image in the memory of the COM462RTU R. R. R. R. R. R. R. R. R. R. R. R. R. R. R. R. R. R. R. R. R. R. R. R. R. R. R. R. R. R. R. R. R.

  • Page 39: Timestamp

    Modbus process image in the memory of the COM462RTU 7.2.4 Timestamp Word 0x0A 0x0B 0x0C 0x0D HiByte LoByte HiByte LoByte HiByte LoByte HiByte LoByte Year Month Hour Minute Second Reserve The timestamp is set according to a datagram received from a transmitting device.

  • Page 40: Channels 1 To 32 With Analogue And/Or Digital Values

    Modbus process image in the memory of the COM462RTU 7.2.6 Channels 1 to 32 with analogue and/or digital values Word 0x00 0x01 0x02 0x03 HiByte LoByte HiByte LoByte HiByte LoByte HiByte LoByte Channel Floating point value (Float) AT&T R&U description Every analogue BMS device channel can contain alarm messages, operating messages, measured values, test messages and descriptive text.

  • Page 41: At&T = Alarm Type And Test Type (Internal/External)

    Modbus process image in the memory of the COM462RTU 7.2.6.2 AT&T = Alarm type and test type (internal/external) 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...
  • Page 42 Modbus process image in the memory of the COM462RTU Bit 6 or 7 is usually set when an internal or external test has been completed. Other values are reserved. The complete byte is calculated from the sum of the alarm type and the test type. COM462RTU_D00010_03_M_XXEN/04.2018...

  • Page 43: R&U = Range And Unit

    Modbus process image in the memory of the COM462RTU 7.2.6.3 R&U = Range and unit Meaning Invalid (init) No unit Ω Baud °C °F Second Minute Hour Month X … … … … … Reserved CODE Reserved X … … … … … Reserved Reserved COM462RTU_D00010_03_M_XXEN/04.2018...
  • Page 44 Modbus process image in the memory of the COM462RTU Meaning Actual value The actual value is lower The actual value is higher Invalid value The units of the bits 0 to 4 are coded. Bits 6 and 7 describe the validity range of a value. Bit 5 is reserved. The complete byte is calculated from the sum of the unit and the range of va- lidity.

  • Page 45: Channel Description

    Modbus process image in the memory of the COM462RTU 7.2.6.4 Channel description A code with the associated descriptive text is available for each channel. The table above only shows an extract from the texts. For a complete list of the available codes or texts refer to page 51.

  • Page 46: Channel 33 To 64

    Modbus process image in the memory of the COM462RTU 7.2.6.5 Channel 33 to 64 Meaning No alarm Prewarning Device error Reserved Alarm (yellow LED), e.g. insu- lation fault Alarm (red LED) Reserved … … … Reserved Reserved No test Internal test External test The BMS channels 33 to 64 only provide digital information.

  • Page 47: Reference Data Records Of The Process Image

    Modbus process image in the memory of the COM462RTU 7.3 Reference data records of the process image To make it easier to check the configuration and the Modbus RTU data access to BMS devices, COM462RTU provides a reference data record at the virtual BMS address 0.

  • Page 48: Reference Value On Channel 1

    Modbus process image in the memory of the COM462RTU The start addresses provide the following reference values: 0x0000: TEST (device type)   0x000E: 1 (common alarm, LSB of the HiByte is set)   0x0010: 230 V undervoltage (reference value on channel 1) ...

  • Page 49: Reference Value On Channel 2

    Modbus process image in the memory of the COM462RTU 7.3.3 Reference value on channel 2 The following reference value is stored in this channel:12.34 A Word 0x14 0x15 0x16 0x17 HiByte LoByte HiByte LoByte HiByte LoByte HiByte LoByte 0x41 0x45 0x70 0xA4 0x00...
  • Page 50 Modbus process image in the memory of the COM462RTU Word 1 Word 2 Floating Hex value point sequence value Byte 1 Byte 2 Byte 3 Byte 4 CORRECT 12.34 Word 4.066E+29 swapping Byte 3098.27 swapping Word and byte -5.21E-17 swapping COM462RTU_D00010_03_M_XXEN/04.2018...

  • Page 51: Channel Descriptions For The Process Image

    Modbus process image in the memory of the COM462RTU 7.4 Channel descriptions for the process image Measured value description Value Note alarm message/ operating message 1 (0x01) Insulation fault 2 (0x02) Overload 3 (0x03) Overtemperature 4 (0x04) Failure line 1 5 (0x05) Failure line 2 6 (0x06)
  • Page 52 Modbus process image in the memory of the COM462RTU Measured value description Value Note alarm message/ operating message 13 (0x0D) Compressed air 10 14 (0x0E) Failure nitrogen 15 (0x0F) Failure CO2 16 (0x10) Insulation UPS Insulation fault UPS 17 (0x11) Overload UPS 18 (0x12) Converter UPS...
  • Page 53 Modbus process image in the memory of the COM462RTU Measured value description Value Note alarm message/ operating message 26 (0x1A) Fail.safet.supply Line safety power supply 27 (0x1B) Failure UPS Line additional safety power supply 28 (0x1C) Ins.safety supply 29 (0x1D) Fail.N conductor 30 (0x1E) Short dist.
  • Page 54 Modbus process image in the memory of the COM462RTU Measured value description Value Note alarm message/ operating message 40 (0x28) Failure UPS Battery-supported safety power supply 41 (0x29) 66 (0x42) 67 (0x43) Function test till: Date 68 (0x44) Service till: Date 69 (0x45) Ins.fault locat...
  • Page 55 Modbus process image in the memory of the COM462RTU Measured value description Value Note alarm message/ operating message 77 (0x4D) Undervoltage 78 (0x4E) Overvoltage 79 (0x4F) Frequency Measured value in Hz 80 (0x50) 81 (0x51) Asymmetry 82 (0x52) Capacitance Measured value in F 83 (0x53) temperature Measured value in °C...
  • Page 56 Modbus process image in the memory of the COM462RTU Measured value description Value Note alarm message/ operating message 97 (0x61) Service code Information about service intervals 101 (0x65) Connection system 102 (0x66) Connection earth 103 (0x67) Short-circuit trans- CT short circuit former 104 (0x68) No CT connected...
  • Page 57 Modbus process image in the memory of the COM462RTU Measured value description Value Note alarm message/ operating message 110 (0x6E) 111 (0x6F) No address: Failure BMS device 112 (0x70) 113 (0x71) Failure K1/Q1 Failure contactor K1/Q1 114 (0x72) Failure K2/Q2 Failure contactor K2/Q2 115 (0x73) Device error...
  • Page 58 Modbus process image in the memory of the COM462RTU Measured value description Value Note alarm message/ operating message 126 (0x7E) Fault 127 (0x7F) Fault 128 (0x80) No master 129 (0x81) Device error 130 (0x82) 131 (0x83) Fault RS-485 132 (0x84) 133 (0x85) 134 (0x86) 135 (0x87)
  • Page 59 Modbus process image in the memory of the COM462RTU Measured value description Value Note alarm message/ operating message 141 (0x8D) Address collision BMS address has been assigned several times 142 (0x8E) Invalid address 143 (0x8F) Several masters 144 (0x90) No menu access 145 (0x91) Own address 201 (0xC9)
  • Page 60 Modbus process image in the memory of the COM462RTU Measured value description Value Note alarm message/ operating message 209 (0xD1) 210 (0xD2) Line AV on 211 (0xD3) Line SV on 212 (0xD4) Line UPS on 213 (0xD5) Channel disabled 214 (0xD6) switching back Switching back interlock- interlocking func-...
  • Page 61 Modbus process image in the memory of the COM462RTU To convert parameter data, data type descriptions are required. Text repre- sentation is not necessary in this case. Value Description of parameters 1023 (0x3FF) Parameter/measured value invalid. The menu item of this parameter is not displayed. 1022 (0x3FE) No measured value/no message 1021 (0x3FD)
  • Page 62 Modbus process image in the memory of the COM462RTU Value Description of parameters 1009 (0x3F1) Factor multiplication [*] 1008 (0x3F0) Factor division [/] 1007 (0x3EF) Baud rate COM462RTU_D00010_03_M_XXEN/04.2018...

  • Page 63: Modbus Control Commands

    Modbus process image in the memory of the COM462RTU 7.5 Modbus control commands Commands can be sent to BMS devices by an external application (e.g. visual- isation software). Control via Modbus can be enabled or disabled in the browser menu "1. Set- tings"...
  • Page 64 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 65 Modbus process image in the memory of the COM462RTU Register addresses for reading. Function code read: 0x03 0xFC00: Ext. address. 0xFC01: Int. address. 0xFC02: Channel 0xFC03: Control command 0xFC04: Status Reading out register: To read, use function code 0x03 (read several registers). ...
  • Page 66 Modbus process image in the memory of the COM462RTU Register Register Register Register control Function channel command 1-150 Switchover to line 1 1-150 Switchover to line 2 RESET alarm (broad- cast) RESET alarm EDS (broadcast) 1-150 Buzzer off [for alarm address] (BC) 1-150 1-12...

  • Page 67: Technical Data

    8. Technical data ( )* = factory settings 8.1 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 ..........................See ordering details Frequency range .........................
  • Page 68 Technical data Cable (twisted pairs, shielded, shield connected to PE on one side)......recommended: J-Y(St)Y 2x0.8 Connection, Modbus RTU ........................terminals D+, D- Terminating resistor..........................120 Ω (0.25 W) Device address, Modbus RTU ........................2…247 (2)* Environment/EMC) EMC ................................EN 61326-1 Classification of climatic conditions acc.

  • Page 69: Dimension Diagram

    Technical data Option "W" data different from the standard version Classification of climatic conditions acc. to IEC 60721: Stationary use (IEC 60721-3-3) ............ 3K5 (condensation and formation of ice possible) 8.2 Dimension diagram 8.3 Standards, approvals, certifications For information about UL applications refer to page 20. COM462RTU_D00010_03_M_XXEN/04.2018...

  • Page 70: Ordering Details

    Technical data Other interface protocols Connection to SCADA systems (Supervisory Control and Data Acquisition) and/or PLCs via OPC, BACnet or other protocols on request. 8.4 Ordering details Supply voltage/ Power Art. frequency range Type consumption COM462RTU AC/DC 76…276 V */ 3.5…40 VA, B 9506 BMS-...

  • Page 71: Troubleshooting

    9. Troubleshooting 9.1 Malfunctions If the COM462RTU causes malfunctions in the connected networks, please re- fer to this operating manual. 9.1.1 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 72 Troubleshooting COM462RTU_D00010_03_M_XXEN/04.2018...

  • Page 73: Index

    INDEX Address setting Exception code 29 - BMS address 26 - Modbus RTU address 27 Factory settings 25 Addressing 14 Application with an internal BMS bus 18 Intended use 14 BMS bus 11 BMS device address assignment on the Modbus 35 - ALARM 23 Button - COM 23...
  • Page 74 - responses 30 Work activities on electrical installations 13 Workshops 9 Ordering details 70 Process image 35 Product description 15 Quick-start guide 11 Reference data records of the process image Scope of delivery 15 Setting the date 27 Support 71 Technical data 67 Termination 14 Termination of the BMS bus 21...
  • Page 76 Bender GmbH & Co. KG P.O. Box 1161 • 35301 Grünberg • Germany Londorfer Str. 65 • 35305 Grünberg • Germany Tel.: +49 6401 807-0 • Fax: +49 6401 807-259 E-mail: info@bender.de • www.bender.de Photos: Bender archives.

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