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PR Elecronics 4801 Installation And Connection Manual

Modbus gateway

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4 8 0 1
M o d b u s gate way
I nst al l at i on an d
co n n ec ti o n g u i d e
N o. 4 8 01 V 10 0 - UK

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Summary of Contents for PR Elecronics 4801

  • Page 1 4 8 0 1 M o d b u s gate way I nst al l at i on an d co n n ec ti o n g u i d e N o. 4 8 01 V 10 0 - UK...
  • Page 2 PR electronics A/S tilbyder et bredt program af analoge og digitale signalbehandlingsmoduler til industriel automation. Programmet består af Isolatorer, Displays, Ex-barrierer, Temperaturtransmittere, Universaltransmittere mfl. Vi har modulerne, du kan stole på i selv barske miljøer med elektrisk støj, vibrationer og temperaturudsving, og alle produkter opfylder de strengeste internationale standarder.
  • Page 3: Table Of Contents

    4801 M O D B U S G AT E W AY I N S TA L L AT I O N A N D C O N N E C T I O N G U I D E CONTENTS Setting up the 4801 gateway .................
  • Page 4: Setting Up The 4801 Gateway

    Setting up the 4801 gateway 4 8 01 V1 0 0- UK...
  • Page 5 Setting up the 4801 gateway A PC or MAC Computer must be used to setup the 4801 gateway. If you are not able to maintain an internet connection - while connected to the 4801 gateway - then you have to download a certificate for your user ID.
  • Page 6 ”Download Plugin for this Browser” Press this link - to download a plugin certificate for off-line use, which means setting up the 4801 gateway without any internet connection. When you have - downloaded the certificate to your Com- puter, you will be directed to the ”Discovery”...
  • Page 7 Save pre://self/discover - on your favorite list for easy future access. Please make sure - that your Computer IP settings are set to dynamic. Connect the 4801 gateway LAN2 (general configuration port) - directly to your Computer by using a standard Ethernet cable.
  • Page 8 Press “Refresh” - to update the list with local found devices. Select the 4801 gateway - from the local device list. The 4801 gateway seriel number is a part of the device name. Log in with your user ID - if you do not yet have a user ID, you have to create one by going to www.pps.prelectronics.com.
  • Page 9 Setting up the 4801 gateway It is now possible - to configure the LAN1 and LAN2 ports of the 4801 gateway, and also possible to change the settings on the Modbus RTU serial ports (P1 and P2). Port 1 & 2 - Modbus RTU communications...
  • Page 10 Change from point to point communication to LAN communication 4 8 01 V1 0 0- UK...
  • Page 11: Change From Point To Point Communication

    LAN communication Enter the ”Discovery” view page - to get here please refer to the ”Setting up the 4801 gateway” guide found at page 2. Press “Refresh” - to update the list with available local devices. Select the 4801 gateway, ”device s/n”-config.pps.prelectronics.com, from the devices list.
  • Page 12 Change from point to point communication to LAN communication Give the 4801 gateway - an available IP address on your local network. Press “Apply” to acknowledge. An example: A Computer on the local network has the following setup: IP: 192.168.1.126 and Subnet Mask: 255.255.255.0.
  • Page 13 Press “Yes” - to confirm and use the new settings. The 4801 gateway will now reboot. Connect the LAN2 port - on the 4801 gateway - to the local network, by using a standard Ethernet cable. You can now - use TCP/IP communication from any device, connected to the local network.
  • Page 14 Change LAN communication setup back to point to point communication 4 8 01 V1 0 0- UK...
  • Page 15: Change Lan Communication Setup Back To Point To Point Communication

    Connect to “pre://self/discover” - in your browser, by using a Computer connected to the local network. Press “Refresh” - to update the list with local devices. Select the 4801 gateway - from the available local devices list. Please note: If no devices appears in the local network list, please check the Firewall settings for your network.
  • Page 16 Change LAN communication setup back to point to point communication Change the IP settings - of the 4801 gateway - back to default settings, which are: IP: 169.254.0.10 and Subnet mask: 255.255.0.0 Press “apply” - to accept the changes. 4 8 01 V1 0 0- UK...
  • Page 17 Press “Yes” - to confirm and use the settings. The 4801 gateway - will now reboot. Connect the LAN2 port - on the 4801 gateway - to the Computer using an Ethernet cable. You can now use TCP/IP communication from Computer directly through LAN2.
  • Page 18 After the reset - the 4801 gateway will have the follo- wing (default) settings: IP: 169.254.0.10 and Subnet Mask: 255.255.0.0. Connect the LAN2 port - on the 4801 gateway - to the Computer using an Ethernet cable. You can now use TCP/ IP communication from Computer directly through LAN2.
  • Page 19: 4801 Gateway Specifications

    4801 gateway specifications 4 80 1 V 1 00 - UK...
  • Page 20 4801 gateway specifications TYPE 4801 ..............Modbus Gateway Applications..............PPS application communications gateway and Modbus RTU to Ethernet Modbus TCP/IP gateway. Specifications: Supply voltage ............12...48 VDC - 4.5 W - max. 340 mA Operating temperature .......... -10...+60 °C LAN1, RJ45 ..............PPS communication port ”device s/n”.pps.prelectronics.com...
  • Page 21: Modbus Basics

    Modbus Basics 4 80 1 V 1 00 - UK...
  • Page 22 Modbus basics Modbus is a “master-slave” system, where the “master” communicates with one or multiple “slaves”. The master typically is a PLC (Programmable Logic Controller), DCS (Distributed Control System), HMI (Human Machine Interface), RTU (Remote Terminal Unit) or PC. The three most common Modbus versions used are: MODBUS ASCII, MODBUS RTU and MODBUS/TCP.
  • Page 23 Displays Programmable displays with a wide selection of inputs and outputs for display of temperature, volume and weight, etc. Feature linearisation, scaling, and difference measurement functions for programming via PReset software. Ex interfaces Interfaces for analogue and digital signals as well as HART signals between sensors / I/P converters / ®...
  • Page 24  www.prelectronics.fr  sales@prelectronics.fr  www.prelectronics.de  sales@prelectronics.de  www.prelectronics.es  sales@prelectronics.es  www.prelectronics.it  sales@prelectronics.it  www.prelectronics.se  sales@prelectronics.se  www.prelectronics.com  sales@prelectronics.co.uk  www.prelectronics.com  sales@prelectronics.com  www.prelectronics.cn  sales@prelectronics.cn Head office Denmark www.prelectronics.com PR electronics A/S sales@prelectronics.dk Lerbakken 10 tel.