Use of MODBUS user parameters is available for the following terminals: Omnicomm, Arnavi 3/4, Arnavi Integral, Arnavi Integral 2, Galileosky 7.0. Correspondences of terminal parameters to parameters in Omnicomm Online are given on the link.

To view raw and converted values of MODBUS user parameters, click the “Monitoring” tab (see View current values).

In the “MODBUS user parameter data” section for Omnicomm and third-party terminals:

Specify the number of MODBUS user parameters. Possible values: Without calculation or from 1 to 70.

If the terminal has been added earlier, make sure that the values of parameters “ID”, “Address”, “Function”, “Register” correspond to those set earlier in Omnicomm Configurator.

“ID” shows an automatically generated identification number.

“Parameter name” - Enter the name of the parameter to be displayed in Omnicomm Online reports.

“Address” (only for Omnicomm terminals) - Enter the address of the slave device. Possible values: 1 to 247.

“Function” (only for Omnicomm terminals) - Select the register type. Possible values: Coil, Discrete Input, Holding Registers, Input Registers.

“Register” (only for Omnicomm terminals) - Specify register address. Possible values: 0 to 65535.

“User parameter number” (for third-party terminals only) - number of the user parameter, which is displayed in the Monitoring tab.

“Byte and word order” - Select the order of bytes and words. Possible options: Direct word and byte order; Reverse word order, Reverse byte order, Reverse word and byte order.

“Type of value before conversion”. Possible values: long.

“Data type after conversion”. Possible values: integer, float, bin, s16, u16, s32, u32, u64, double.

“Minimum value” - Specify the minimum allowable value of the parameter. If the value of the parameter being processed is less than the specified value, the parameter will be ignored.

“Maximum value” - Specify the maximum allowable value of the parameter. If the value of the parameter being processed is greater than the specified value, the parameter will be ignored.

“Coefficient” - Enter the value by which you want to multiply the value of the processed parameter.

“Offset” - Enter the value to be added to the value of the parameter to be processed. A negative value is allowed.

“Number of decimal places” (only for value types after conversion: float or double) - Enter the number of decimal places of the converted value. Possible options: 0 to 9.

Once configured, the MODBUS user parameters are ready to be used as a data source for Fuel Level Sensor, CAN Parameters and RPM.