Emerson Process Management 2400S manual Using a DeviceNet tool, Type a tools, Type B tools

Using a DeviceNet Tool

For complete documentation of the Model 2400S DN transmitter’s device profile, including input and output assemblies, see the manual entitled Micro Motion Model 2400S Transmitters for DeviceNet: Device Profile.

5.4Using a DeviceNet tool

Micro Motion supplies an Electronic Data Sheet (EDS) for the Model 2400S transmitter. The EDS file is named MMI2400S-MassFlow.eds. The EDS presents the device profile in a format designed to be read and interpreted by other devices.

DeviceNet tools fall into two basic categories:

•Type A: Tools that use the EDS to build a unique user interface for the specific device

•Type B: Tools that do not use the EDS, and instead rely on the user to supply the object-instance-attribute information required to interact with the device

5.4.1Type A tools

If you are using a Type A tool:

1.Use your tool’s standard methods to read or import the supplied EDS into the network configuration tool (e.g., RSLinx).

2.Use your tool’s standard user interface to configure, view, and manage the transmitter.

3.If you want to perform a function that isn’t available through your tool, see the instructions for Type B tools.

5.4.2Type B tools

If you are using a Type B tool, or if you want to access features that are not available through your tool’s user interface, you must reference the feature by class, instance, and attribute, use the appropriate service, and supply an attribute value if required. Depending on the attribute, the value may be a numeric or character value or a code. Values must be entered in the data type appropriate to the attribute.

For example:

•To configure the mass flow cutoff, you must:

a.Specify the Analog Input Point class.

b.Specify the Mass Flow instance.

c.Specify the cutoff attribute.

d.Use the Set service to set the attribute value to the desired cutoff.

•To read the mass flow process variable, you can use either of the following methods: - Use the Get service to read the value of the corresponding attribute.

- Use one of the input assemblies that contains the mass flow process variable.

This manual provides class, instance, attribute, data type, and service information for most configuration parameters and for all procedures. Complete documentation of the Model 2400S DN transmitter’s device profile is provided in the manual entitled Micro Motion Model 2400S Transmitters for DeviceNet: Device Profile.

22 Micro Motion® Model 2400S Transmitters for DeviceNet™