Every trigger identifies the trigger event type, which identifies when the trigger will be executed.
The trigger event types are described in the Trigger event type reference. In addition to the standard trigger event types, the Bosch Rexroth driver makes available additional trigger event types that are associated with tool rundown events on a Bosch Rexroth controller.
When the Bosch Rexroth device is started, the driver will subscribe with the controller for either single spindle tightening result messages, which are known in the Open Protocol Specification as MID0061 messages, or for multi-spindle result messages, which are known as MID0101 messages. The controller will send these messages to the node when a tightening occurs.
Bosch Rexroth event types
The Bosch Rexroth category is available in the Trigger Event Type list when defining or editing a trigger. This example shows a new trigger being defined with the Canvas Editor:
When the Bosch Rexroth Event Message trigger event type is selected, the Event tab becomes active with parameters that accommodate the Bosch Rexroth Event Message event.
| Parameter | Description |
|---|---|
| Device Name | Select a Bosch Rexroth device. This list will contain both Power Focus type devices and Power MACS type devices. |
| Event Message |
Select one of the available tool rundown messages from the list:
|
Selecting the appropriate Event Message
The Event Message option selected for a trigger will depend upon the configuration of the controller, as well as the actions that you will define in the trigger.
- CS351 controllers support both single-spindle and multi-spindle event messages. Bosch Rexroth trigger event type triggers interfacing with these types of devices can be used to capture either MID0061 Last Tightening Result or MID0101 Multi-spindle Result event messages.
Different triggers can be developed to process the different event messages. For example, for a controller that has jobs defined, a trigger could be defined to execute upon receipt of the MID0101 Multi-spindle Result event message and a second trigger defined to execute upon receipt of the MID0061 Last Tightening Result event message.
Each event message option contains the data that is unique to the event message it represents. These data items are available to the trigger as trigger event variables.
The trigger event variables associated with each of the event message options are described in the following sections.