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Intab AirGate-Modbus Instruction Manual

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AirGate-Modbus
INSTRUCTIONS MANUAL
INTRODUCTION ....................................................................................................................................................................................... 1
SPECIFICATIONS ....................................................................................................................................................................................... 2
CONNECTION AND INSTALLATION .......................................................................................................................................................... 3
OPERATION .............................................................................................................................................................................................. 4
OPERATION MODES................................................................................................................................................................................. 5
USING THE OPERATION MODES .............................................................................................................................................................. 6
LONG REACH APPLICATION ..................................................................................................................................................................... 7
SETUP SOFTWARE.................................................................................................................................................................................... 8
CONFIGURATION MODES ........................................................................................................................................................................ 9
DETERMINATION AND SELECTION OF THE SERIAL PORT (COM) - WINDOWS ....................................................................................... 10
CONFIGURATIONS - AIRGATE-MODBUS ................................................................................................................................................ 12
DATA COMMUNICATION - SERIAL ......................................................................................................................................................... 13
DATA COMMUNICATION - WIRELESS ................................................................................................................................................... 14
MODBUS COMMANDS .......................................................................................................................................................................... 15
DESCRIPTION OF SOME REGISTERS ....................................................................................................................................................... 15
HOLDING REGISTERS TABLE ................................................................................................................................................................... 17
SUPPORTED MODBUS REGISTERS ......................................................................................................................................................... 17
ACCESSORIES ......................................................................................................................................................................................... 22
WARRANTY ............................................................................................................................................................................................ 22

INTRODUCTION

AirGate-Modbus is an equipment with a link interface function between a network with Modbus RTU protocol about RS485 and a
wireless network with proprietary protocol about IEEE 802.15.4. Resulting from an advanced technological development, the
product stands out in many aspects, such as high performance, high connectivity and easy setup and operation. This technology is
presented as the ideal solution for applications which require flexibility and interoperability.
Its main characteristics are:
SMA connector for antenna;
2 dBi antenna;
Two connectors for one RS485 Modbus RTU interface;
USB Device (Mini-B);
Status indicator LEDs;
Button used to enter setup mode.
INTAB INTERFACE-TEKNK AB
V1.1x C
AirGate-Modbus
1/22

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  • Page 1: Table Of Contents

    WARRANTY ......................................22 INTRODUCTION AirGate-Modbus is an equipment with a link interface function between a network with Modbus RTU protocol about RS485 and a wireless network with proprietary protocol about IEEE 802.15.4. Resulting from an advanced technological development, the product stands out in many aspects, such as high performance, high connectivity and easy setup and operation. This technology is presented as the ideal solution for applications which require flexibility and interoperability.

  • Page 2: Specifications

    PA66 housing for DIN rail mount; Dimensions: 99.5 x 114 x 17.5 mm. Protection Degree: IP20 Internal protection against inversion of the power supply voltage polarity. Wire gauge: 0.1 to 3 mm² (28 to 12 AWG). Recommended torque: 0.4 Nm CERTIFICATES: INTAB INTERFACE-TEKNK AB 2/22...

  • Page 3: Connection And Installation

    Fig. 3 shows the electrical connections needed. Terminals 1, 2 and 3 are destined for the communication with Modbus network. These terminals are internally connected to terminals 4, 5 and 6. The terminals 7, 8 and 9 are used for AirGate-Modbus power supply.

  • Page 4: Operation

    See Fig. 4. Fig. 3 - AirGate-Modbus frontal panel The USB interface of AirGate-Modbus is used for setup. Depending on the operation mode set, this interface can be connected to a PC functioning as master of the Modbus RTU network.

  • Page 5: Operation Modes

    USB Routing for RS485 and IEEE 802.15.4 In this mode AirGate-Modbus uses the USB interface to communicate directly with a Modbus master and its RS485 interface to communicate with a Modbus slave’s network. The wireless interface is used to communicate with other AirGate-Modbus devices in RS485-SLAVES operation mode.

  • Page 6: Using The Operation Modes

    Division of a wired network in wired segments interconnected by wireless segments. Wireless segments located close to the Modbus master which communicates by USB port. It allows the AirGate-Modbus using as a USB-RS485 convertor for the first wired segment. Fig. 6 illustrates this possible application.

  • Page 7: Long Reach Application

    In seeking to expand the network, in order to obtain a greater distance, it is possible to assemble a tree shaped topology. As exemplified in Fig. 6, to expand the network, an AirGate-Modbus configured as a RS485-SLAVES (Firmware > 1.23) was inserted with the same PAN ID (5670).

  • Page 8: Setup Software

    The DigiConfig application is a Windows® program used for the configuration of the AirGate-Modbus. For its installation, execute the file “DigiConfigSetup.exe” from the CD. When installing the setup software, the USB Serial Port driver of AirGate-Modbus may be automatically installed according to Fig. 10.

  • Page 9: Configuration Modes

    CONFIGURATION MODES AirGate-Modbus is configurable through DigiConfig software via USB interface, being necessary to put the device in “setup mode”. To enter this mode, simply press the SETUP BUTTON, checking that the STATUS LED now flashes slowly (approximately once per second).

  • Page 10: Determination And Selection Of The Serial Port (Com) - Windows

    AirGate-Modbus Fig. 10 - DigiConfig main screen To edit the configurations of the AirGate-Modbus, after clicking the Search button, you must select it in the tree to the left of the main screen. To quit “setup mode“, you must press the SETUP BUTTON again, “Cancel”, or “Apply” a configuration. In this moment, the device is reset and starts to operate according to the last applied configuration.
  • Page 11 SELECTION In case it's necessary to modify the Serial Port (COM) associated to the AirGate-Modbus select “USB Serial Port (COM X)” where the AirGate-Modbus is connected. Access "Action/Properties" and in the "Port Definitions" tab click "Advanced...", according to Fig. 14.

  • Page 12: Configurations - Airgate-Modbus

    5. Wait the Firmware update process conclusion. The DigiConfig will show a text box with the information AirGate-Modbus firmware recording performed successfully. Click "OK". 6. The DigiConfig will turn back to the initial screen and the STATUS LED of the AirGate-Modbus will start to flash rapidly. INTAB INTERFACE-TEKNK AB...

  • Page 13: Data Communication - Serial

    AirGate-Modbus During the Firmware update process of the AirGate-Modbus, there must not have any interruption. In case there is power outage, disconnection of the USB cable or interruption of the Digiconfig software during the process, the AirGate-Modbus will probably cease operating normally and must be forwarded to the technical support of the supplier.

  • Page 14: Data Communication - Wireless

    RHT-Air equipment, you only have to update the firmware of all the equipment or use a AirGate-Modbus with the new version of the firmware operating - such as RS485-Master - in another PAN ID, connected to interface RS485 in one of the AirGates operating as RS485-Slaves of the first PAN ID, as shown in the Long Reach Application.

  • Page 15: Modbus Commands

    REGISTER 36 - LINK QUALITY INDICATOR RX FATHER States the quality of the reception link of the connection between the equipment and the AirGate-Modbus father with which it is paired. This value is obtained when measuring the power of the last packet received. This power is measured in dBm, which is a logarithmic measurement of power in mW.
  • Page 16 To evaluate if the equipment was installed in an appropriate manner, it is recommended to verify the quality of the connection between each of the AirGate-Modbus and RHT-Air equipment units. This verification should be made by an analysis of registers 36 and 39, while the network is operating.

  • Page 17: Holding Registers Table

    PAN ID should have the same value in this register. Byte of the SECURITY_KEY. When the cryptography is enabled, all of the devices of a single PAN ID should have the same value in this register. INTAB INTERFACE-TEKNK AB 17/22...
  • Page 18 Modbus rule. In this case, increasing the value of the register may solve the problem. As explained in the chapter Configurations – AirGate-Modbus, this register is used to configure the Modbus address, i.e., the address that...
  • Page 19 AirGate-Modbus identifies the device on the network. As a standard, since it is a gateway and to not conflict with other network devices, all of the AirGate-Modbus leave the factory with the address 248. When in configuration mode, as explained in the Configuration Mode chapter, the device always answers for the Modbus 246 address using the USB interface.
  • Page 20 Information available in milliseconds. Register ROTA_FILHO_SHORT_MAC_0. First Byte of the Short Mac of the AirGate-Modbus route to the child with Modbus address ADDR_FILHO. Register ROTA_FILHO_SHORT_MAC_1. First Byte of the Short Mac of the AirGate-Modbus route to the child with Modbus address ADDR_FILHO.
  • Page 21 Maximum wait time for a wireless fragment packet. 1018 Version of MAC layer of the device. 1019 Serial number (word high) 65535 1020 Serial number (word low) 65535 1021 Product code 1022 Device firmware version 65535 INTAB INTERFACE-TEKNK AB 21/22...

  • Page 22: Accessories

    Extension Cable: With 2.5 meters and a magnetic base, the extension cable allows a better positioning of the AirGate-Modbus antenna. On its ends there are RP SMA Male connectors for connection with AirGate-Modbus and RP SMA Female for connection with the Antenna. There is no need to buy a new antenna because the one from AirGate may be used.

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