Bronkhorst Modbus slave interface Manual de usuario Pagina 1

Instruction manual Modbus slave interface for digital Mass Flow / Pressure instruments Doc. no.: 9.17.035U Date: 16-10-2014 ATTENTION Please read th

BRONKHORST® 2.3.2 M12 DeviceNet drop cables For the use in for example the IN-FLOW range or CORI-FLOW range (IP-65 applications) it is best to use De

BRONKHORST® 2.4 Termination For best quality of data transfer Modbus should be terminated correctly. 2.4.1 Termination resistors A resistor is add

BRONKHORST® Bronkhorst offers special begin-termination connectors with the resistor network. This handles correct termination but also gives a define

BRONKHORST® 3 CHANGING SLAVE ADDRESS AND BAUD RATE Default instruments will be delivered to customers on address 1 and with a baud rate of 19200 baud

BRONKHORST® 3.3 Via RS232: other programs It is also possible to read and or change the slave address or baud rate by means of any program via RS23

BRONKHORST® 3.4.2 Change bus-address and baud rate: Pressing the switch 5x briefly with intervals of max. 1 second in normal running/operation mode.

BRONKHORST® 4 FUNCTIONAL DESCRIPTION 4.1 General The information found here is the basic information needed for the installation of a Modbus system

BRONKHORST® 4.3 Response time This slave device will respond on each valid request from the master within 100ms. This means that the response timeo

BRONKHORST® 4.4.4 Diagnostics (08) The following sub-functions are supported Sub-function code (dec) Name 00 Return Query Data 10 Clear Counters and

BRONKHORST® 4.4.6 Available parameters Modbus registers (in the data model) are numbered from 1 to 65536. In a Modbus PDU (Protocol Data Unit) these

BRONKHORST® Disclaimer Even though care has been taken in the preparation and publication of the contents of this manual, we do not assume legal or o

BRONKHORST® Details and meaning can be found in document 9.17.023 Operation instructions digital instruments. This document can be found at: http

BRONKHORST® 5 TROUBLESHOOTING 5.1 Visual diagnostics LED indications (if present) can be very useful in case of problems with the instrument. The

BRONKHORST® 5.3 Bus diagnostics string The bus diagnostics string can be found in the service report that can be created using FlowFix. The string

BRONKHORST® 6 SERVICE For current information on Bronkhorst and service addresses please visit our website:  http://www.bronkhorst.com Do you hav

BRONKHORST® Table of contents 1 GENERAL PRODUCT INFORMATION ...

BRONKHORST® 1 GENERAL PRODUCT INFORMATION 1.1 Introduction This manual covers the Modbus interface, which offers a direct connection to Modbus for

BRONKHORST® 1.3 References to other applicable documents Manuals and guides for digital instruments are modular. General instructions give informati

BRONKHORST® 1.4 Short form start-up All necessary settings for this module are already performed at Bronkhorst. To follow next steps carefully is th

BRONKHORST® 1 82 FIELD BUS INSTALLATION 2.1 General Modbus is a 3-wire, RS485-based field bus communication system for parameter value exchange. In

BRONKHORST® 2.2.2 Shielded a coded M12 connector The chassis M12 circular connector (for IP65 applications) has the following pin configuration: M12

BRONKHORST® 2.3 Modbus Cables and T-parts 2.3.1 RJ45 FTP cables For connecting instruments to Modbus you need shielded cables with at least 3 wires