Configuring a Multiple Call Destination System

Procedure

The configuration procedure varies depending on the usage of the multiple call destination system. Two typical procedures are described below:

Configuration of a linear call sequence of destination systems

With this configuration, the aim is to call other destination systems in a linear call sequence from a notification. (See: Configuring a Linear Call Sequence of Destination Systems.)
Configuration of a multiple call destination system using suspend and resume

In automation tasks, it is often the case that a production machine receives a task from PCo, for example, when an OPC UA method is called. However, processing this task might take a long (for example, more than five seconds) and unforeseeable amount of time. The production machine later confirms processing by calling an OPC UA method or a Web service operation of the PCo server. With the suspend and resume configuration option, you can configure the call for starting the task and configure further processing after confirmation by the production machine in just one multiple call destination system. This improves the readability of the configuration compared to modeling the same process in several multiple call destination systems, and enables continued usage of variables that were available before the order started. See also: Configuring Suspend and Resume

For more information about advanced procedures, see Branching Conditions and Activating Exception Handling.