ControlLogix 5550: unsolicited messages on a DH+ network

To configure an unsolicited message in a ControlLogix processor and route it to RSLinx Classic on a DH+ network, complete the following:
From Logix Designer (RSLogix 5000)
  1. Create a message instruction in the ControlLogix processor that is PLC-5 Typed Write, and with a communication path of DH+. For example, 1, <slot ID of DHRIO module>
  2. Specify a unique Source Link ID in the message instruction. This value can be used for all message instructions in this controller. Also, configure the Destination Link as configured in your system. All items on this page must be configured.
From RSLinx Classic
  1. From the Control bar, select
    DDE/OPC > Options
    .
  2. On the
    General
    tab, select
    Accept UDP Messages on Ethernet Port
    .
    TIP:
    This option is enabled by default in
    RSLinx Classic
     version 4.00 or earlier. Starting from
    RSLinx Classic
     version 4.10, this option is disabled by default.
  3. From
    RSWho
    , right-click the ControlLogix processor, and select
    Configure New DDE/OPC Topic
    .
  4. From the
    DDE/OPC Topic Configuration
     dialog box, select the
    Data Collection
     tab.
  5. Select
    PLC-5
     for Processor Type.
  6. Select the
    Advanced Communication
     tab. For Local or Remote Addressing, select
    Remote route
     and configure the bridge type as 1785-KA5 Bridge/5130-KA.
  7. For the Remote ID, use the Source Link ID from the ControlLogix message instruction, and ensure the Remote Network Type is Data Highway Plus (DH+).
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