Power Electronics VS65 Series Programming And Software Manual

POWER ELECTRONICS
VS65 SERIES MV SOFT STARTER
MODBUS COMMUNICATION
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5. MODBUS COMMUNICATION
5.1. Modbus Protocol
This section explains how to control several VS65 soft starters by using the Modbus communication.
The Modbus Communication series aim is to introduce itself in to a compatible network with the Modbus
communications protocol. This is achieved by the use of RS485 communications. The Series
Communications Module enables the soft starter to be controlled and /or monitored as slave by a
Modbus master from a remote location.
The RS485 network admits the connection of up to 240 equipments within the same network.
The VS65 soft starter operates as a peripherical slave when it is connected to a Modbus system. This
means that the soft starter does not start the communication task. However, the master will be the one
who starts the task.
Approximately all of the operating modes, parameters and soft starter characteristics are accessible
through the communications series. For instance, master may give the start and stop orders, control the
soft starter status, read the motor current consumption….Conclusively, operate with every single soft
starter option.
The communication series module uses the standard RS485 for the physic level and the industrial
Modbus communication for information exchange.
5.2. Modbus Series Communication Installation Ref: E0004
VS65 Series
The communication series module has been inserted in the lower part of the control board, over 2 female
connectors with the following dimensions: 1x5 (lower connector) and 2x7 (upper connector).
Note: The series communication module needs an independent power supply, which has been provided
by the J1B connector. The supply voltage must be 9Vef@50Hz.
5.3. Supported Modbus Function Codes
The series communication protocol implemented in he Vs65 soft starter adheres itself completely to the
standard industrial communication protocol Modbus from Modicon. Of al existing functions in Modbus
protocol, the soft starter uses read-write functions. These functions are the following:
FUNCTION
DESCRIPTION
REGISTERS NUMBER
3
READING REGISTERS
10*
16
WRITING REGISTERS
10*
This function implementation code in the soft starter allows the user to read up to 10 registers of the
same Parameter Group within the same frame. In case access to consecutive memory registers is
needed, belonging to different groups, they must be done by using as many frames as groups involved.

Power Electronics VS65 Series Specifications

General

Brand	Power Electronics
Model	VS65 Series
Category	Controller
Language	English