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Intercel eSAM User Manual
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Intercel eSAM User Manual

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Modbus
USER GUIDE
www.intercel.com.au

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Summary of Contents for Intercel eSAM

  • Page 1 Modbus USER GUIDE www.intercel.com.au...
  • Page 2 Modbus packets can be sent over many different communication channels. The eSAM and Ultra eSAM support Modbus packets using either TCP/IP or RS232. The eSAM is capable of linked Modbus devices across the 4G mobile network, as well as over the local network.
  • Page 3 This guide will walk you through configuring your eSAM modem to work with Modbus devices. 1. Use your web browser to connect to the eSAM. By default, this can be done by connecting your computer to the eSAM’s Ethernet port and entering the IP Address http://192.168.1.1...
  • Page 4 4. Open the ‘Applications > DTU/Modbus’ screen. This screen controls the bridging of TCP/IP packets onto the Serial RS232 or RS485 line. Configure this screen as follows: a. Press ‘Enable’ to activate the DTU service. b. Select ‘Modbus’ as connection type. c.
  • Page 5 6. Open the Status>Modem menu. Write down the IP address assigned to your modem. We will need to provide this address to the Modbus Master, so it knows where it has to send packets to contact the Modbus Slave.
  • Page 6 This guide will walk you through configuring your eSAM modem to work with Modbus devices. 1. Use your web browser to connect to the eSAM. By default, this can be done by connecting your computer to the eSAM’s Ethernet port and entering the IP Address http://192.168.1.1...
  • Page 7 4. Open the ‘Applications > DTU/Modbus’ screen. This screen controls the bridging of TCP/IP packets onto the Serial RS232 or RS485 line. Configure this screen as follows: a. Press ‘Enable’ to activate the DTU service. b. Select ‘modbus’ as connection type. c.
  • Page 8 5. You will now have a bridge between the Modbus master on one eSAM, and the Modbus slave on the other eSAM. Please configure your Modbus devices as required. Please consult the manufacturer of your Modbus equipment for advice on configuring your Modbus hardware.
  • Page 9 33 Glenvale Crescent Mulgrave VIC 3170 Australia intercel@intercel.com.au +61 (0) 3 9239 2000...