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3. CONFIGURATION
3.1. Addressing the Modbus on the interface
The four selectors (switches) under the electrical connection terminal block are
used to specify the Modbus address on the interface.
The address is coded in four bits, allowing a value between 1 and 16 to be
specified. The selector on the extreme right is the least significant bit and the one
on the extreme left the most significant bit.
Address examples:
3.2. Configuration of Modbus settings via the registry 8
The Modbus address 0x0008 (data of type u16) is used for configuring the
communication. By default, it contains the value 0x1025 (or 4133 in decimals):
b15 b14 b13 b12 b11 b10
Data length
0 = 7 bits
1* = 8 bits
(recommended in
Modbus)
Hexa
Équivalence in decimal
15.12.2022
Once the configuration has been completed, cut off
WARNING:
the power to the Navipass for 5 seconds.
Selectors
no. 1
no. 2
where:
= OFF position
Once the configuration is complete, turn off the
WARNING:
Navipass power supply for 5 seconds.
Stop bit
0* = 1 bit
1 = 1.5 bits
2 = 2 bits
Corresponding
Modbus address
no. 3
no. 4
and
b9
b8
b7
b6
Parity
0 = even
1 = odd
2* = any
Factory Value
1025
4133
NAVIPASS Modbus - Accessory
1
2
3
4
5
6
16
= ON position
b5
b4
b3
b2
Communication
speed
0 = 2400 bps
1 = 4800 bps
2 = 7200 bps
3 = 9600 bps
4 = 14400 bps
5* = 19200 bps
6 = 38400 bps
7 = 57600 bps
b1
b0
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