Functionality; Gateway's Capacity - HMS Networks Intesis KNX User Manual

KNX – Modbus Master
TM
Intesis

Functionality

From the Modbus system point of view, after the start up process, Intesis reads continuously the points configured
to be read in the Modbus RTU Slave devices and updates in its memory all the values received from the Modbus
system.
Every one of the mentioned Modbus points is associated to a KNX group address, with this, all the Modbus system
is seen as one more KNX device from the KNX system point of view, with the same configuration and operation
characteristics.
When a change in any Modbus point occurs, a write telegram is sent to the KNX bus, of the associated KNX Group.
When a telegram is received from the KNX bus to the KNX Group address associated to a Modbus point, a message
is sent immediately to the corresponding Modbus device to perform the corresponding action.
In the continuous polling of the Modbus devices, if a non-response of the Modbus device is detected, the
corresponding virtual signal inside Intesis gateway will be activated indicating that there is a communication error
with the Modbus device. These virtual signals indicating communication status in real time with the Modbus devices
are also accessible from KNX, like the rest of the points of Intesis Gateway.

Gateway's capacity

Intesis capacity is listed below:
Element
Number of
Communication
Objects
Number of Main
Group Addresses
Number of
Associations
Type of Modbus
slave devices
Number of Modbus
Slave devices
© HMS Industrial Networks S.L.U - All rights reserved
This information is subject to change without notice
100
version
100
100
200
Modbus RTU (EIA485)
Up to 255 Devices
User Manual r1.0 eng
Notes
Maximum number
Communication Objects that can
be defined.
Maximum number of KNX Main
Group Addresses to be used
Maximum number of KNX
Association
Those supporting Modbus
protocol.
Number of Modbus Slave
devices supported by the device
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