Installation - Biddle Modbus Manual

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2

. . Installation

2.1 Special points
SINGLE MASTER
Local registers:
Relate to the connected unit.
Global registers:
Relate to the connected unit.
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2.1.1 Modbus/BACnet
The unit is designed for communication with a Modbus sys-
tem. With the aid of an IntesisBox Gateway, it is also possible
to communicate with a BACnet system.
2.1.2 Multiple units on Modbus
If you connect multiple units to the Modbus system, various
set-ups are possible. The set-up determines from which unit
the local and global registers can be set and/or read out.
Opmerking:
n
The global registers are used by the automatic con-
trol.
Opmerking:
n
For operation, it does not matter whether units
without control circuit board (type basic) are also
present.
Opmerking:
n
For the illustrations, the NOZ
same principles apply to other units.
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MASTER SLAVE
Local registers:
Relate to the connected unit / the
connected units.
Global registers:
Are the same for each unit.
has been used. The
2
MULTIPLE MASTER
Local registers:
Relate to the connected units.
Global registers:
Relate to the connected units.