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  • Created by Jackie Lehr, last updated
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    Modify Device Settings display for Modbus

    Manage the register addresses assigned to the sensors at a selected device, including importing or exporting register map settings as an external *.csv file, and copying the register map settings to other devices.

    Element Description
    Filter Filter the table to list only entries that include the text you type, exactly as typed.
    Select Device Slave Address Select a new slave address for the device, if needed.

    Note

    Only slave addresses, from 1 through 247, which are not mapped to another device are listed; No Slave Mapping is selected when the device has no slave address assigned, and can be used to change the device's slave address to unmapped.
    List Select a sensor or sensors, to map Register values for those sensors or remove them from the list, or select a single sensor, to modify its Register value.

    You can click on any column head (Register, Sensor, Units, or Details) to sort the list.

    Note

    All sensors for the selected device are listed, unless filtered.
    Select/Deselect All Select (check-mark) or deselect all sensors.
    Modify Register Click to edit or delete the Register value for a selected sensor.

    Note

    Disabled when more than one sensor is selected.
    Remove Registers Click to remove the Register value for a selected sensor or set of sensors.
    Generate Register Map Click to map a Register value for the selected sensor or set of sensors.

    You can use any value between 31000 to 39999 for a single sensor; for a set of sensors, you can use any value that is at least 31000 for the start of the Register value range, as long as that value allows for mapping all of the sensors within the maximum range of 39999.

    If you select a single sensor, whether that sensor is mapped already, its value will map to the new value unless that value is assigned to another register. In that case, the next highest available value will be used. For example, if you define 31009 as the value, 31009 through 31058 are assigned to other sensors, 31059 will be assigned to the sensor.

    Note

    To map a sensor to a value that is assigned to another register, you must either change or remove that value at the other register.

    If you select multiple sensors, the sensors are mapped sequentially from the sensor at the top of the list through to the sensor at the end of the list, except as follows:

    • Any values assigned to unselected sensors will be skipped.
    • If the starting value is assigned to an unselected sensor, the mapping will start at the next highest available value. For example, if you select 31005, and 31005 through 31050 are already assigned, 31051 will be the first Register value assigned.
    Import Register Map Click to apply the contents of a *.csv file for a previously saved register map to the list.
    Export Register Map Click to save a copy of the register map, as configured, as a *.csv file.

    Note

    Do not edit the .csv file for an exported register map. Any errors made during editing can affect the MODBUS TCP Output Module support when that file is imported.
    Copy Register Map Click to copy the register map, as configured, to one or more devices using the "Copy Register Map to Device" display.

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