IntesisBox
®
Modbus Server – Mitsubishi Heavy Industries AC
User’s Manual r1.0 eng
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This information is subject to change without notice
IntesisBox
®
is a registered trademark of Intesis Software SL
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Functionality
1.3
Each of the mentioned signals in section 1.2 is associated to a predefined and fixed Modbus
address. Therefore, all the system is seen as a single Modbus slave unit with a fixed Modbus
address map from the Modbus system point of view.
Two Modbus mode connection types can be active in IntesisBox
®
: Modbus RTU or Modbus
TCP, or both simultaneously.
IntesisBox
®
continuously polls all signals provided by each indoor unit and maintains the
updated values to be served in Modbus.
In the continuous polling of each indoor unit, if no response of a certain device is detected,
the corresponding virtual signal inside the gateway will be activated indicating
communication error between the gateway and that precise device (see 0).
When a
write
order is done from Modbus in a gateway's write-enabled Modbus address, the
corresponding order is sent to the associated Mitsubishi Heavy Industries signal (Superlink).
Each Mitsubishi Heavy Industries Indoor Unit has a unique address (0 to 127). These
addresses need to be configured inside IntesisBox
®
using the LinkBoxMB tool (see 4.2.2).
IntesisBox
®
is capable of managing up to two simultaneous Modbus master connections.
IntesisBox
®
includes all hardware needed to connect directly with the Mitsubishi Heavy
Industries indoor units connecting with Superlink network.
0
1
47
127
Superlink
Figure 1.1
Integration of Mitsubishi Heavy Industries AC into Modbus system using IntesisBox
®
EIA232/EIA485
2-wire no polarity
EIA232
TCP/IP
IntesisBox
Modbus Server
AMP Air Conditioning
www.ampair.co.uk | [email protected]
