Intesis Modbus Server User Manual

Modbus serverModbus RTU Master and Modbus TCP slaveUSER MANUALIssue date: 02/2020 r1.2 ENGLISHIntesisTM Modbus TCP – Modbus RTU

Important User Information

Disclaimer

The information in this document is for informational purposes only. Please inform HMS Industrial Networks of any inaccuracies or omissions found in this document. HMS Industrial Networks disclaims any responsibility or liability for any errors that may appear in this document.HMS Industrial Networks reserves the right to modify its products in line with its policy of continuous product development. The information in this document shall therefore not be construed as a commitment on the part of HMS Industrial Networks and is subject to change without notice. HMS Industrial Networks makes no commitment to update or keep current the information in this document.The data, examples, and illustrations found in this document are included for illustrative purposes and are only intended to help improve understanding of the functionality and handling of the product. In view of the wide range of possible applications of the product, and because of the many variables and requirements associated with any particular implementation, HMS Industrial Networks cannot assume responsibility or liability for actual use based on the data, examples, or illustrations included in this document nor for any damages incurred during the installation of the product. Those responsible for the use of the product must acquire sufficient knowledge in order to ensure that the product is used correctly in their specific application and that the application meets all performance and safety requirements including any applicable laws, regulations, codes, and standards. Further, HMS Industrial Networks will under no circumstances assume liability or responsibility for any problems that may arise as a result of the use of undocumented features or functional side effects found outside the documented scope of the product. The effects caused by any direct or indirect use of such aspects of the product are undefined and may include e.g. compatibility issues and stability issues.

Router for the integration of Modbus RTU installations into Modbus TCP-enabled monitoring and control systems.

Description

Introduction

This document describes how to route messages between Modbus RTU and Modbus TCP networks using the Intesis Modbus RTU to Modbus TCP Router.The aim of this integration is to make accessible data from devices in a Modbus RTU network to a Modbus TCP network in a transparent way.Configuration is carried out using the configuration software IntesisTM MAPS.This document assumes that the user is familiar with Modbus technologies and their technical terms.

Routing between Modbus RTU and Modbus TCP networks

Functionality

After the start-up process, Intesis helps route Modbus communications from a Modbus TCP to Modbus RTU networks, allowing Modbus TCP devices to communicate with Modbus RTU devices present in another network.It is not necessary to perform any mapping as the data from one side is shown on the other side in a transparent way.The router also has diagnostic signals available through TCP port 503 to check that all the communication from each side is working properly.

Router capacity

Intesis capacity is listed below:

Connections

Find below information regarding the Intesis connections available.

Power SupplyMust use NEC Class 2 or Limited Power Source (LPS) and SELV-rated power supply. Respect polarity applied of terminals (+) and (-). Be sure the voltage applied is within the range admitted (check table below). The power supply can be connected to earth but only through the negative terminal, never through the positive terminal.

EthernetConnect the cable coming from the IP network to the connector ETH of the gateway. Use an Ethernet CAT5 cable. If communicating through the LAN of the building, contact the network administrator and make sure traffic on the port used is allowed through all the LAN path (check the gateway user manual for more information). With factory settings, after powering up the gateway, DHCP will be enabled for 30 seconds. After that time, if no IP is provided by a DHCP server, the default IP 192.168.100.246 will be set.

Port Modbus RTUConnect the EIA485 bus to connectors A3 (B+), A2 (A-), and A1 (SNGD) of the gateway’s Port. Respect the polarity.

Note for EIA485 port; Remember the characteristics of the standard EIA485 bus: maximum distance of 1200 meters, maximum 32 devices connected to the bus, and at each end of the bus it must be a termination resistor of 120 Ω.

Ensure proper space for all connectors when mounted (see section 5).

Powering the device

A power supply working with any of the voltage range allowed is needed (check section 4). Once connected the RUN led (Figure above) will turn on.WARNING! In order to avoid earth loops that can damage the gateway and/or any other equipment connected to it, we strongly recommend:

• The use of DC power supplies, floating or with the negative terminal connected to the earth. Never use a DC power supply with a positive terminal connected to the earth.

Connection to Modbus

Modbus TCP

Connect the communication cable coming from the network hub or switch to the ETH port of Intesis. The cable to be used shall be a straight Ethernet UTP/FTP CAT5 cable.

 Modbus RTU

Connect the communication cable coming from the Modbus network to the port marked as Modbus of Intesis. Connect the EIA485 bus to connectors A3 (B+), A2 (A-), and A1 (SGND). Respect the polarity.Remember the characteristics of the standard EIA485 bus: maximum distance of 1200 meters, maximum 32 devices connected to the bus, and at each end of the bus it must be a termination resistor of 120 Ω.

Connection to the configuration tool

This action allows the user to have access to the configuration and monitoring of the device (more information can be found in the configuration tool User Manual). One method to connect to the PC can be used:

• Ethernet: Using the Ethernet port of Intesis.

Set-up process and troubleshooting

Pre-requisites

It is necessary to have a Modbus TCP client device operative and well connected to the corresponding Modbus port of Intesis and a Modbus RTU slave connected to its corresponding port as well.Connectors, connection cables, PC to use the configuration tool, and other auxiliary material, if needed, are not supplied by HMS Industrial Networks S.L.U for this standard integration.Items supplied by HMS Networks for this integration are:

•  Intesis gateway.
•  Link to download the configuration tool.
• Product documentation.

Intesis MAPS. Configuration & monitoring tool for Intesis Modbus series

Introduction

Intesis MAPS is a Windows® compatible software developed specifically to monitor and configure the Intesis Modbus series.The installation procedure and main functions are explained in the Intesis MAPS User Manual. This document can be downloaded from the link indicated in the installation sheet supplied with the Intesis device or on the product website at www.intesis.comIn this section, only the specific case of Modbus Router systems will be covered.Please check the Intesis MAPS user manual for specific information about the different parameters and how to configure them.

Connection

To configure the Intesis connection parameters press the Connection button in the menu bar. Configuration tab

Select the Configuration tab to configure the connection parameters. Three subsets of information are shown in this window: General (Gateway general parameters), Modbus slave (Modbus TCP slave interface configuration), and Modbus Router (Modbus TCP & RTU interfaces parameters).Signals

Sending the configuration to Intesis

When the configuration is finished, follow the next steps.

1. – Click on the Save button to save the project to the project folder on your hard disk (more information in Intesis MAPS User Manual).
2. – You will be prompted to generate the configuration file to be sent to the gateway.a.- If Yes is selected, the file containing the configuration for the gateway will be generated and saved also into the project folder.b.- If NO is selected, remember that the binary file with the project needs to be generated before the Intesis starts to work as expected.
3. – Press the Send File button to send the binary file to the Intesis device. The process of file transmission can be monitored in the Intesis Communication Console window. Intesis will reboot automatically once the new configuration is loaded.

After any configuration change, do not forget to send the configuration file to the Intesis using the button Send File.

Diagnostic

To help integrators in the commissioning tasks and troubleshooting, the Configuration Tool offers some specific tools and viewers.In order to start using the diagnostic tools, a connection with the Gateway is required.The Diagnostic section is composed of two main parts: Tools and Viewers.

•  ToolsUse the tools section to check the current hardware status of the box, log communications into compressed files to be sent to the support, change the Diagnostic panels’ view or send commands to the gateway.
•  ViewersIn order to check the current status, viewers for the Internal and External protocols are available. It is also available a generic Console viewer for general information about communications and the gateway status and finally a Signals Viewer to simulate the BMS behavior or to check the current values in the system.

More information about the Diagnostic section can be found in the Configuration Tool manual.

Set-up procedure

1. Install Intesis MAPS on your laptop, use the setup program supplied for this and follow the instructions given by the Installation wizard.
2.  Install Intesis in the desired installation site. Installation can be on DIN rail or on a stable not vibrating surface (DIN rail mounted inside a metallic industrial cabinet connected to ground is recommended).
3.  Connect the communication cable coming from the Modbus TCP network to the port marked as Ethernet on Intesis (More details in section 2).
4.  Connect the communication cable coming from the EIA485 port of the Modbus RTU installation to the port marked as Modbus RTU of Intesis (More details in section 2).
5.  Power up Intesis. The supply voltage can be 9 to 30 Vdc. Take care of the polarity of the supply voltage applied.WARNING! In order to avoid earth loops that can damage Intesis and/or any other equipment connected to it, we strongly recommend:• The use of DC power supplies, floating or with the negative terminal connected to the earth. Never use a DC power supply with a positive terminal connected to the earth.
6.  If you want to connect using IP, connect the Ethernet cable from the laptop PC to the port marked as ETH of Intesis (More details in section 2).
7.  Open Intesis MAPS, create a new project selecting a copy of the one named INMBSRTR0320000.
8.  Modify the configuration as desired, save it and download the configuration file to Intesis as explained in the Intesis MAPS user manual.
9.  Visit the Diagnostic section and check that there is communication activity, some TX frames, and some other RX frames. This means that the communication with the Modbus TCP Client device/s and Modbus RTU slave devices is OK. In case there is no communication activity between Intesis and the Modbus devices, check that those are operative: check the baud rate, the communication cable used to connect all devices, and any other communication parameter.

Electrical & Mechanical Features

Dimensions

Recommended available space for its installation into a cabinet (wall or DIN rail mounting), with space enough for external connections

URL https://www.intesis.com© HMS Industrial Networks S.L.U – All rights reservedThis information is subject to change without notice

References

• 
  Intesis | Gateway solutions for Building Automation
• 
  Intesis | Gateway solutions for Building Automation
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  Intesis | Gateway solutions for Building Automation