Swegon TAC6 User Manual
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TAC6 + MODBUS TCP/IP

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  • Page 1 TAC6 + MODBUS TCP/IP...
  • Page 3 TAC6 + MODBUS TCP/IP User’s manual...
  • Page 4: Table Of Contents

    TABLE OF CONTENTS Overview ................................5 Scope ................................5 Plugging the satellite module......................... 6 Connections of the SATELLITE MODULES ....................7 1.3.1 SAT ETHERNET connection ........................7 1.3.2 SAT WIFI connection ..........................8 Definition of the MODBUS TCP/IP communication .................... 9 MODBUS TCP/IP Protocol ..........................
  • Page 5: Overview

    1 Overview Scope TAC6 regulations for GLOBAL units. The MODBUS TCP/IP communication with the TAC6 regulation boards requires an additional satellite circuit being used as interface of communication: SAT WIFI option: • Remote control with specific Swegon App for tablet and smartphone.
  • Page 6: Plugging The Satellite Module

    The assembly must be carried out with the power OFF. The satellite module must be plugged on the « SAT COM » plug of the TAC6 regulation board. Caution: A bad positioning of the satellite module on circuit TAC6 can fatally damage both circuits! The following figure shows the installation of SAT ETHERNET and SAT WIFI on TAC6 control boards.
  • Page 7: Connections Of The Satellite Modules

    Connections of the SATELLITE MODULES 1.3.1 SAT ETHERNET connection The SAT Ethernet can be connected either to an existing local area network (LAN, see figure 5), or directly to a PC in a Point-to-point link (see figure 6). Just plug the Ethernet cable into the RJ45 connector on SAT ETHERNET and, only for Point-to-point connection with a PC, connect the other extremity of the cable to the Ethernet network adapter of the PC.
  • Page 8: Sat Wifi Connection

    User’s manual TAC6 + MODBUS TCP/IP 1.3.2 SAT WIFI connection The SAT WIFI comes preassembled and no additional wiring is necessary. It includes: 1 SAT WIFI component with a label reporting its unique MAC address (6x2 digits) and UFL male connector (figure 9) 1 metallic support for the antenna (figure 11).
  • Page 9: Definition Of The Modbus Tcp/Ip Communication

    Supports function code 16 (decimal) for writing multiple holding registers. Data: All TAC6 data is in 16-bit Modbus holding registers. Modbus coils, discrete inputs or input registers are not used. The Modbus communication buffers size is sufficient for reading 125 registers at once or writing 123 registers at once.
  • Page 10: Modbus Values

    User’s manual TAC6 + MODBUS TCP/IP MODBUS values All values are signed values. As usual, all Modbus words are in big endian byte order. Some registers act as bitmaps with 16 status bits. Some values are 32-bit. They are transferred as two 16-bit registers, first low word, and then high word.
  • Page 11 Figure 10 - Example of Static IP configuration on PC for poit-to-point connection 3.1.2.1 IP Address Modification via PC If the SAT ETHERNET IP address has to be modified once that the connection has been established with the PC, it will be possible to use the software «...
  • Page 12: Sat Wifi Setup

    User’s manual TAC6 + MODBUS TCP/IP For each register to be modified: Write its number in the box « Register to edit» (1) Write the new value in the box « new register value » (2) Press the button « Write register» (3) Once that the parameters have been modified, do a “read”...
  • Page 13: Access Point Configuration

    Connect to this Wi-Fi network with a pc, tablet or smartphone that has Wi-Fi access and navigate with a web browser to address http://192.168.1.1/. The home page will appear where the current configuration of the SAT WIFI is displayed: Figure 12 - SAT WIFI configuration Web Server - Home Page 3.2.1 Access Point Configuration Press “AP”...
  • Page 14: Station Configuration

    User’s manual TAC6 + MODBUS TCP/IP 3.2.2 Station Configuration Press “Station” button in the left menu to configure the SAT WIFI as a station of an existing Access Point: Figure 14 - SAT WIFI configuration Web Server - Station Configuration Page Select in the top list the Wi-Fi network to which the SAT WIFI will connect to as station, the SSID text box will then be refreshed with the name of the selected Access Point.
  • Page 15: Tcp/Ip Parameters Configuration

    3.2.3 TCP/IP Parameters Configuration Press “Config” button in the left menu to configure the TCP/IP parameters of the SAT WIFI (both AP and station). Figure 15 - SAT WIFI configuration Web Server - TCP/IP Configuration Page If the SAT WIFI is an Access Point, enter the parameters as in Figure 17. If the SAT WIFI is a station of a Wi-Fi network with DHCP server (dynamic IP address assignation), enter the value 0.0.0.0 for IP address, Netmask and gateway fields.
  • Page 16: "Discovery" Feature

    User’s manual TAC6 + MODBUS TCP/IP If the unit is placed in a location from where the signal reception of the existing AP is not good enough, one of the following solutions should strengthen the signal that will arrive to the SAT WIFI: Use of an antenna extender 1,25 m length with a SMA-female connector that will be connected to the antenna and a SMA-male connector at the other extremity linked to the SMA-female connector of the UFL-SMA cable.
  • Page 17: Modbus Registers

    7 Modbus Registers Please refer to documentation “MI Regulation TAC6 + MODBUS TABLE” for a complete and detailed description of the Modbus registers and their organization in tables. _____________________________________________________________________________________ Although we put a lot of care in the making of our documentation, we cannot be held responsible for any error and/or...
  • Page 18: Appendix 1: Examples Of Networking

    User’s manual TAC6 + MODBUS TCP/IP Appendix 1: examples of networking...
  • Page 21 20210607 – CID050326...

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