CORRIGO E VENTILATION VARIABLES FOR EXOLINE AND MODBUS 3.6 MANU

4 Chapter 1 Corrigo with EXOline, Modbus and BACnet communication
Chapter 1 Corrigo with EXOline, Modbus
and BACnet communication
Introduction
Corrigo ventilation is a pre-programmed application for control of an air handling unit. The Corrigo
controller can be used either stand-alone or integrated in an existing EXO project. In both cases, it is
configured via the display or by using the configuration tool E tool
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on a PC.
This document describes all signals that are accessible via EXOline, Modbus and BACnet. It does not
describe how to create an EXO project.
Signal types
All signals accessible from a SCADA system are described further in this document. Signals with a
default value are settings that can be changed via a SCADA system. Signals without a default value
are actual values which cannot be changed using a SCADA system.
NOTE: In this manual, the term ”Exhaust air” is used to describe the air extracted from inside of a
building. The term “Extract air” is used to describe the air leaving a ventilation system.
EXOL type
The EXOL type of the signals:
R = Real (-3.3E38 - 3.3E38)
I = Integer (-32768 - 32767)
X = Index (0 - 255)
L = Logic (0/1)
Modbus type
The Modbus type of the signals:
1 = Coil Status Register (Modbus function = 1, 5 and 15)
2 = Input Status Register (Modbus function = 2)
3 = Holding Register (Modbus function = 3, 6 and 16)
4 = Input Register (Modbus function = 4)
Supported Modbus functions:
1 = Read Coils
2 = Read Discrete Input
3 = Read Holding Register
4 = Read Input Register
5 = Write Single Coil
6 = Write Single Register
15 = Write Multiple Coils
16 = Write Multiple Registers