FS-8700-01_Modbus_RTU_(T28700-01) Driver Manual

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1.Modbus RTU/ Modbus ASCII Description

The Modbus RTU and Modbus ASCII drivers allow the FieldServer to transfer data to and from devices over either RS-232 or RS-485 using Modbus RTU or Modbus ASCII protocol respectively. The driver was developed for Modbus Application Protocol Specification V1.1a" from Modbus-IDA. The specification can be found at www.modbus.org. The FieldServer can emulate either a Server or Client.

The information that follows describes how to expand upon the factory defaults provided in the configuration files included with the FieldServer.

There are various register mapping models being followed by various vendors To cover all these models FieldServer uses the following three Models

•Modicon_5digit – Use this format where addresses are defined in 0xxxx, 1xxxx, 3xxxx or 4xxxx format. A maximum of 9999 registers can be mapped of each type. This is FieldServer driver’s default format.

•ADU –Application Data Unit address. Use this format where addresses of each type are defined in the range 1-65536

•PDU –Protocol Data unit address. Use this format where addresses of each type are defined in the range 0-65535.

The key difference between ADU and PDU is for example if Address_Type is ADU and address is 1, the driver will poll for register 0. If Address_Type is PDU, the driver will poll for address 1.

Note 1: If vendor document shows addresses in extended Modicon (i.e. 6 digit) format like 4xxxxx then consider these addresses as xxxxx (omit the first digit) and use either ADU or PDU

Note 2: The purpose of providing 3 different ways of addressing the Modbus registers is to allow the user to choose the addressing system most compatible with the address list being used. At the protocol level, the same protocol specification is used for all three with the exception of the limited address range for Modicon_5digit.

FieldServer Technologies 1991 Tarob Court Milpitas, California 95035 USA Web:www.FieldServer.com Tel: (408) 262-2299 Fax: (408) 262-2269 Toll_Free: 888-509-1970 email: support@FieldServer.com

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FieldServer FS-8700-08, FS-8700-01 instruction manual Modbus RTU/ Modbus Ascii Description
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FS-8700-08, FS-8700-01 specifications

The FieldServer FS-8700-01 and FS-8700-08 are advanced protocol gateways designed for seamless communication across diverse automation systems. These devices play a crucial role in facilitating interoperability between various protocols, ensuring that data can be transferred efficiently without the need for extensive reconfiguration. The FS-8700 series targets users in building automation, industrial control, and energy management sectors, offering a flexible and reliable solution for their connectivity needs.

One of the standout features of the FS-8700 series is its support for multiple communication protocols. These gateways can handle a wide range of protocols, including Modbus, BACnet, LonWorks, and DNP3, among others. This flexibility allows different devices and systems to communicate seamlessly, regardless of their original protocol. As a result, users can integrate legacy systems with newer technologies, maximizing the value of their existing investments.

The FS-8700-01 provides a single communication port, while the FS-8700-08 boasts eight ports, catering to varying needs depending on the scale of the operation. The multiple-port configuration of the FS-8700-08 makes it especially suitable for larger installations that require concurrent communication with multiple devices. Both models are equipped with an intuitive web-based interface, simplifying configuration and monitoring. This feature enhances usability, enabling operators to manage their systems remotely with ease.

Another key characteristic of the FS-8700 series is its robust design, which ensures reliability in demanding environments. The devices are built to withstand harsh conditions, making them suitable for a wide array of applications, from factory floors to outdoor installations. Additionally, the gateways support secure data transmission, safeguarding sensitive information during the communication process.

The FS-8700 series also features extensive logging capabilities, allowing users to capture and retain communication history for future analysis. This function is invaluable for troubleshooting and optimizing system performance over time. Furthermore, these gateways can be easily integrated with building management systems and analytics platforms, enhancing overall operational efficiency.

In summary, the FieldServer FS-8700-01 and FS-8700-08 are versatile protocol gateways that offer comprehensive support for multiple communication standards, ensuring interoperability across a range of applications. With their robust design, user-friendly interface, and advanced features, these devices represent a significant upgrade for any organization looking to modernize and streamline their automation systems.
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