Enrolling Modbus devices to Security Center - Industrial IoT

Industrial IoT Plugin Guide

Applies to
Industrial IoT
Last updated
Content type
Guides > Plugin and extension guides
Industrial IoT

To communicate with a Modbus device, it must be added to Security Center.

Before you begin


  1. From the Config Tool home page, open the Plugins task.
  2. Select the Modbus plugin role from the entity browser and click the Devices tab.
  3. Click Add device () and enter the following information:
    The name that you want to apply to the device.
    Device type
    The device template that you want to apply to the device. These templates are created on the Device types page of the plugin, and are used to apply custom states, data points, and actions to a device.
    NOTE: If a device type does not exist, you must manually add the custom states, data points, and actions to the device.
    IP address
    The IP address of the device.
    The port used by the device.
    Unit ID
    The Modbus Unit ID given to the device.

  4. In the Advanced Settings section, enter the following:
    Data polling interval
    The period (in milliseconds) that Security Center will poll the device. By default, the polling interval is set to 500 milliseconds.
    NOTE: The optimal polling interval is determined by your application and the number of inputs to monitor. An industrial application, such as monitoring the temperature of a volatile compound, requires frequent monitoring. Monitoring the temperature of the offices in a building can be done less frequently.

    The smaller the polling interval, the more CPU resources the plugin uses; consequently, the fewer rules and inputs a single plugin can monitor. These settings are limited by the processing power of the computer that hosts the plugin.

    Address format
    The address format used in the user interface of the plugin. You can choose between Decimal or Hexadecimal.
    Optimize read requests
    When Optimize read requests is enabled, a read request can be set to poll multiple properties on a Modbus device. For example, if you have a device with 100 coils, instead of making 100 requests that read one coil each, you can make one request to read 100 coils.
  5. Click Apply.


The device is displayed in the entity browser, nested under the Modbus plugin role.