Overview
Typically, for devices that are configured by using a DTM, the mapping mode is set to automatic and properties of the device I/O profile are set by the DTM.
Depending on the device, you may be able to modify the properties by using the manual mapping mode.
Configuration Workflow
The following workflow shows the relation between the DTM of a device and its I/O profile depending on the setting of the mapping mode.
(1) The first time, may create one request or connection, which cannot be deleted.
(2) Properties that can be edited independently of the mapping mode. Includes editing attributes of requests/connections that are indicated as , editing profile and instance name, adding and removing I/O profiles, and changing the mapping mode.
(3) The values of the attributes of requests/connections that are indicated as are reset to DTM/default values when you switch the mapping mode from manual to automatic.
(4) If adding requests/connections from the pane is supported by the device.
Editing Properties of Active I/O Profiles
When an I/O profile is active and you select it in the Communication Mapping View, you can edit the values of the following attributes in the pane to customize the requests or connections of this active profile and the associated device DDT. This does not modify the default values of the I/O profile of the device:
For Modbus TCP:
For EtherNet/IP:
In an active I/O profile, the values of the other attributes are read-only and you cannot create new requests or connections.
Conversely, editing the attributes of the I/O profile of a device (including requests and connections that you add or remove) automatically modifies the active I/O profile except for the protocol-specific attributes listed above. To apply the values of these attributes to the active I/O profile, use the command.