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The USB communication port has priority over the port RS485 and is closed after 3 s of inactivity.
The parameters (not configurable) for USB port are:
2400, 8,N,1 Addr. 1. The protocol is MODBUS RTU.
USB COMMUNICATION PORT
2
DEFAULT CONDITION FOR THE CONFIGURATION PARAMETERS OF THE MODULE
The instrument is configured from the factory with
È
All DIP-switches at OFF position
RS485 MODBUS protocol comunication parameters:
38400, 8,N,1 Addr. 1
2
DEFAULT
CONDITIONS FOR CHANNEL GROUPS OF THE MODULE
INPUT
Enabling
Given data
Cold joint compensation
Rejection
ADC / Filter
Thermocouple type
Both channels are enabled
°C
Enabled
50 Hz
ADC 15 bit with average filter
J for both channels
FACTORY SETTINGS
DIP-SWITCHES CONFIGURATION
BAUD
RATE
SW1
1
2
9600
19200
38400
57600
ADDRESS
SW1
3
4
5
6
7
8
1
2
...
...
...
...
...
...
...
63
LEGENDA
ON
OFF
BAUD RATE AND ADDRESS FROM EEPROM
SW1
1
2
3
4
5
6
7
8
Terminatore
RS485
SW1
10
ON
OFF
Before setting the DIP switches you must disconnect the power supply.
The DIP-switches position defines the Modbus Address and Baud Rate communication parameters.
In the following table the Baud Rate and Address values are listed as a function of the DIP-switches
position.
Note
: If switches from 1 to 8 are in OFF position, communication settings are retrieved from
EEPROM.
2nd Note:
The termination of the RS485 line must be carried out only at the ends of the
communication line.
