Sending native CIP messages: configuring RSLinx Classic DDE/OPC clients

Configure RSLinx Classic DDE/OPC clients to receive unsolicited CIP messages from Logix5000 family processors.
In RSLinx Classic:
  1. From DDE/OPC menu item in the main menu, select Topic Configuration. You will see the
    DDE/OPC Topic Configuration
     dialog box.
  2. On the dialog box, click the
    Data Source
     tab.
  3. Click the New button (bottom left) to add a new topic.
  4. Select the newly created topic, and then, in the right pane, browse through the tree structure to locate the processor with which you want to associate your topic.
  5. Once found, click
    Apply
    .
  6. Click Data Collection tab, and uncheck the
    Polled Messages (mSec)
    checkbox.
  7. Check the Unsolicited Messages and the Send All Unsolicited Updates checkboxes.
  8. When finished, click
    Done
    .
In Logix Designer (RSLogix 5000):
  1. From the main menu, select
    Communications>Who Active
    .
  2. In the Who Active dialog box, scroll through the tree structure to locate the processor with which you want to communicate.
  3. Once found, create a MSG instruction, and then go to the configuration message dialog box to configure the message. Specify the following settings:
    1. In the Message type drop-down field, select CLP Data Type Write.
    2. In the Source Element field, enter tagname. If it is an array, enter the array name with its starting element number. For example, ArrayName[0].
    3. In the Number of Elements field, enter the number of elements.
    4. In the Destination field, enter <TopicName.tagname> where, the Topic Name is the name that you gave to your topic in RSLinx Classic (refer to Step 4 in RSLinx Classic); and the TagName is the tag that you entered in the Source Element field (refer to Step b).
  4. Click the Communications tab.
  5. In the path field, enter the path to the computer that is running RSLinx Classic.
  6. When finished, click Apply.
Once you have performed the preceding steps, in your client software, enter the topicname.tagname that you entered in the destination field (refer to Step d in Logix Designer (RSLogix 5000)). This action will prepare the client to start receiving data contained in the messages being sent from Logix Designer (RSLogix 5000) and LadderLogix programs.
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