Adding data points to Modbus devices or entities - Industrial IoT 5.0.2.0 | BACnet | Modbus | OPC Client | SNMP Manager

Industrial IoT Plugin Guide 5.0.2.0

Applies to
Industrial IoT 5.0.2.0 | BACnet | Modbus | OPC Client | SNMP Manager
Last updated
2023-03-20
Content type
Guides > Plugin and extension guides
Language
English
Product
Industrial IoT
Version
5.0

To monitor the data points of a Modbus device or entity, you must add them to the device or entity in Security Center.

Before you begin

Procedure

  1. From the Config Tool home page, open the Plugins task.
  2. Select a Modbus device or entity.
  3. In the Data points section, click Add a data point ()
    The Add a data point dialog box opens.
    Dialog box for adding Modbus data point.
  4. Enter the following information:
    Name
    The name of the data point.
    Modbus object type
    The object type of the data point. This can be a coil, a discrete input, a holding register, or an input register.
    Address
    The address of the data point on the device. You can enter the address in decimal format and then click Hex to convert it to hexadecimal.
    Bit range
    (Only for input register and holding register) Enable this option if you want to extract the data point value from a subset of bits. For more information, see Reading a specific bit range of a Modbus data point.
    Byte swap
    Enable this option if you want to extract the reading order of the bytes inside each register to be in little-endian.
    Value type
    The type of information reported by the input (data point). The types of data and the possible values that can be reported are:
    Boolean
    True or False
    Int16
    -32,768 to 32,767
    UInt16
    0 to 65,535
    Byte
    0 to 255
    Access level
    Indicates whether the selected data point is read-only or read-write. This field is automatically displayed by the plugin role.
    Unit name
    (Optional) The measurement unit of the data point.
    Unit symbol
    (Optional) The symbol representing the measurement unit.
  5. Click Add to add another data point or click Add and Close.
    The data point is displayed in the Data points section.
  6. Click Apply.