Intesis Wmp Interface; Hvac Wmp Commands Supported; Hvac Wmp Functions Allowed; Link With Home Automation System - HMS Intesis WMP User Manual

Home Automation (WMP) – Hitachi VRF
®
Intesis

2. Intesis WMP interface

In this section, a common description for all Intesis WMP series gateways is given, from the point of view of the
Home Automation system which is called from now on internal system. Connection with the Hitachi VRF system is
also called from now on external system.
There is a specific Home Automation (WMP) manual available about WMP protocol with available examples. Here
is included the specific information regarding to WMP protocol and its integration in this product, for further
explanations, refer to the refered WMP manual available in www.intesis.com.

2.1. HVAC WMP Commands supported

Intesis WMP commands SET/CHN/GET can be used with the different WMP functions.

2.2. HVAC WMP Functions allowed

Depending on the signal, different commands are allowed. WMP protocol uses different functions to refer to different
signals of the HVAC system.
In the table below are listed the available WMP signals for the HVAC control, the function to identify the signal, its
available values and the commands allowed to interact with them.
OUTDOOR UNITS SIGNALS
Signal description
Comm Error OU
INDIVIDUAL UNITS
Signal description
On/Off
Operation Mode
Fan Speed
Vane Position
Temperature Setpoint (x10) (ºC)
AC Ambient Temperature (x10) (ºC)
Unit Error code (0-No Error,X-Error)
Error IU

2.3. Link with Home Automation system

This gateway supports one IP connection to communicate with the home automation hub or central controller but
allows to communicate with several AC units. To identify the ac unit to control from the Home Automation side, WMP
protocol has implemented the acnum parameter. Basically, this parameter links the home automation side identifying
the AC unit to control in the AC system.
Given an AC unit, all its individual signals have one unique acnum and this number is always different among all the
ac units configured in the gateway. Only in some specific cases, outdoor units might share the acnum with one
indoor unit as the commands are independent between themselves.
Acnum is given in the configuration section. See
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This information is subject to change without notice
Function Values
ERROROU OK/ERR
Function Values
ONOFF ON/OFF
MODE HEAT/COOL/FAN/DRY/AUTO
FANSP 1/2/3/4/AUTO
VANEUD 1/2/3/4/5/6/7/AUTO
SETPTEMP (ºC)
AMBTMP (ºC)
ERRCODE 0/X (see user manual)
ERRSTATUS OK/ERR
4.2.5 H
ITACHI CONFIGURATION
User Manual r1.1 EN
Commands
CHN/GET
Commands
SET/CHN/GET
SET/CHN/GET
SET/CHN/GET
SET/CHN/GET
SET/CHN/GET
CHN/GET
CHN/GET
CHN/GET
for more information.
URL https://www.intesis.com
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