Modbus Server

The Modbus Protocol is a messaging structure. It is used to establish master-slave/client-server communication between intelligent devices. It is a de facto standard. The Modbus RTU specification defines the default communication protocol over serial lines. The Modbus TCP/IP specification takes the Modbus instruction set and wraps TCP/IP around it.

HSYCO’s MODBUS TCP SERVER I/O Server implements a Modbus TCP/IP server, allowing external Modbus clients to connect to HSYCO and perform any standard Modbus function.

This support is implemented as a simple Java API.

HSYCO Configuration

Options

ID	Default	Values	Description
eventslog	false	true	if the general eventsLog option is also true in hsyco.ini, Modbus events for this gateway are written in the log files
		false	Modbus events for this gateway are not written in the log files, even if the eventsLog option is true in hsyco.ini

Datapoints

ID	Value	R/W	Description

User Interface

Airzone Object

The user interface for the Airzone control framework:

The (airzone) object is listed in the Project Editor’s new object list only when at least one Airzone I/O Server is defined.

Parameters

• server id: the server ID. Supports Redirect variables
• zone: the zone. Supports Redirect variables
• position: the object's position. Use the pixels or rows and columns coordinates format

Syntax

(airzone <server id>; <zone>; <position>)

E.g.

(airzone serverid; zone; x10y20)

UISET Actions

You can use any object that accepts a text attribute, usually text, but also marquee and others, to display the status of the system according to the following table:

USER Commands

The CSx75 I/O Server supports a few system commands to be inserted within the Web interface. The controls are directly supported as ordinary user objects, by setting the name and param fields according to the following table:

ID	Attribute	Set to

Name	Param	Action