Serial Channels configuration

 

 

View the RS485 port arrangement

 

Quantities (Number of measured quantities)
Select the number of physical quantities that you wish to capture from the sensor. The value can be set from 1 to 10.

Name
Enter an identifying name for each of the quantities to be acquired. You can assign as the name, for example, the type of measured quantity. The name should begin with a letter and can be maximum 12 characters long. The name unequivocally identifies the measurement being input; you cannot assign the same name to multiple measurements.

Unit (Unit of measurement)
Unit of measurement of the quantity detected by the sensor. It should begin with a letter and can be maximum 12 characters long. The unit of measurement should be in agreement with the value of the Gain parameter. if you do not want to display and store the quantity, enter ---- (dashes) in the Unit field.

Baud rate
Select the communication speed of the sensor.

Mode (Communication parameters)
Select the communication parameters. The following options can be selected:

• UART_8N1: no parity, 1 stop bit

• UART_8N2: no parity, 2 stop bits

• UART_8E1: even parity, 1 stop bit

• UART_8E2: even parity, 2 stop bits

• UART_8O1: odd parity, 1 stop bit

• UART_8O2: odd parity, 2 stop bits

Format (Data delimiter)
Enter the character delimiting the data transmitted by the sensor.

Address
RS485 address of the sensor.

Command (command for requesting data)
Enter the command string for requesting the values measured by the sensor (Enter=^r , New line=^n).

Gain
The value recorded in the datalogger is the result of a linear formula applied to the measured value:

Value recorded = Gain x Value measured

The Gain value is the same for all the quantities measured by the sensor. You should only enter the numeric value, without unit of measurement, in the Gain field. The unit of measurement should be entered in the Unit field. By setting Gain = 1, the recorded value is exactly the measured value.

 

Configuration of the sensor
For a correct functioning of the system, the sensor should be configured according to the following settings:
1. The measured quantities transfer order should match the order programmed in the datalogger.
2. The units of measurement set in the sensor should match the ones programmed in the datalogger.
3. The RS485 Address must match the one programmed into the data logger.
4. The communication speed (Baud rate) must match the one programmed into the data logger.

 

Error messages

If the configuration parameters are not correctly input, you can get the following error messages.

The name and Unit fields are required !
Cause: the identification name or the unit of measurement fields were not filled.

There is just an equivalent Name !
Cause: you previously entered a sensor with the same name. You should change the identification name.

Gain must be not zero !
Cause: the Gain field has not been filled or zero has been entered.

 

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