KJM MANDÍK
–
Detailed operating instructions
M&C KJMPNO 07/2022
MANDÍK, a.s.,
81
The
MANDÍK Cloud
storage allowing full remote control of the AC unit is described in detail in
the separate manual
“Mandík-Cloud”
including connection methods and Ethernet network
parameters. For safety reasons, only trained operators can set the controller's internal
parameters for connection to the cloud storage.
Modbus
– is an open protocol for intercommunication of different devices, which allows data
to be transferred over different networks and buses. It works on the
Master/Slave
principle,
i.e. the principle of message passing between server and client. The
Slave
regime is used to
communicate with a master control system, and the
Master
regime is used to communicate
with a slave device. The Climatix controller offers the option of both Modbus RTU and
Modbus IP protocols, which can be used simultaneously. The Climatix controller has 3 internal
Modbus communication ports. The
standard communication parameters are set in the menu
SystemObjects
Communication
Modbus
for every port separately. Changes made must
be saved by selecting the
Execute
option in item
RestartRequired!
These are the ports:
Local
– Modbus RTU protocol is enabled on the RS485 port and the physical serial
communication connection using RS485 is made with a twisted pair cable, such as
Belden 3105A, plugged into the
T9
controller terminals labelled
RS485
.
Service
– Modbus RTU protocol can also be used on the service connector marked
T-
HI
. the physical connection of serial communication using RS485 is made with a
twisted pair cable, for example Belden 3105A, which must be terminated on the
controller side with the RJ45 connector. A specific parameter is the setting of the
communication service port function for Modbus
ModbusRTU_Serv=
Yes
.
With this
setting, no external control unit can be connected to the service port.
Changes made
must be saved by selecting the
Execute
option in item
RestartRequired!
IP
– Modbus IP protocol is also enabled on the Ethernet port and the physical
connection of the TCP/IP transmission is made with a UTP cable terminated with the
RJ45 connector that plugs into the Ethernet connector of the
T-IP
controller labelled
Ethernet
. This option cannot be selected for Climatix POL4xx series controllers.
Modbus can also be implemented using the additional POL902 communication module. The
individual options of enabling protocols and communication port selections are made in item
Configuration
ModbusPort.
A complete list of registers is given in the documentation
“Modbus table”
and can be downloaded from the Mandík website. Further information on