Principle Of Operation; Front Panel Controls - fluidra CONTROL BASIC PLUS PUMP MODBUS Manuel D'installation

1 INTRODUCTION TO MODBUS AND PRODUCT
Thank you very much for purchasing our Control Basic Plus pump with MODBUS-RTU features. This manual is intended
for the professional installer; if you are not, please consult your official distributor. MODBUS is an open field bus
successfully used throughout the world to connect field devices to a main controller. This is the reason why MODBUS
has been our choice to offer to our customers and partners an automated solution, easy to integrate not only with our
brand products but also with a vast collection of third party components and controllers. MODBUS, MODBUS-RTU and
other related names are registered trademarks of MODBUS Organization. Further information and documentation can be
found at www.Modbus.org.
1.1

PRINCIPLE OF OPERATION

The Control Basic Plus pump implements MODBUS-RTU as a control-communications feature that allows operation and
supervision in a MODBUS automation environment. Preventive maintenance and fault analysis is also possible thanks to
the implementation of internal registers in the pump with the more relevant operational and error events. When the pump
is installed, you are not forced to connect it to a MODBUS system, if you do not aim to control or supervise it externally.
The pump can run in local mode, as traditionally done, without using the MODBUS layer. However, we expect that the
implementation of MODBUS-RTU in the pump will open to our advanced customers and partners a wide range of new
opportunities and implementation scenarios, thanks to the simplicity and flexibility of the MODBUS-RTU layer. Using a
MODBUS-RTU message, the pump can start & stop by set-point report errors and so on, giving to the user/installer a
wide range of new features.
1.2 BASIC CHARACTERISTICS
The MODBUS communication system provides a Master/Slave implementation among devices sharing a physical
connection. For the pump, the physical connection is a RS-485 half-duplex serial layer, which has been chosen among
other options due to its wide implementation and ruggedness. The pump is designed to run in a single-master system. In
this implementation, Master and Slave devices have clear roles, and it is crucial to clear understand these roles for
proper system implementation.
Master Device
Device that controls the data exchange in the bus and, if necessary, implements co-ordination tasks among
different slaves (i.e. PLC Programmable Logic Controller, SCADA, etc.).
Slave Device
Devices connected to the bus that responds to the requests from the master, either reporting information or
executing tasks as per Master request.
2

FRONT PANEL CONTROLS

The pump's front panel contains various buttons and indicators, to indicate and control the state of the pump. These are
shown in Image 1.
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Image 1 Panel indicator
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