Instructions

Communicator Configuration 74 (124)
7.12.4 Trigger Byte
Trigger byte is used to enable/disable the trigger functionality for the response.
When Trigger byte is enabled, the Communicator increases the trigger byte by one when the
Communicator receives new data from the subnetwork.
The Trigger byte is stored in the Data from PROFINET area or the General area.
The location of the trigger byte is specified by the address.
How to Enable Trigger Byte on a Node
Procedure
1. Navigate to the Nodes & transactions page.
2. Select the decried node and transaction.
3. In the transaction sidebar Update mode menu, select Change of state on trigger.
4. Navigate to the I/O data map page.
5. The transaction with the trigger byte enabled is marked with a flash icon.
To open the Map Area sidebar, click on the flash icon.
6. In the Map Area sidebar, specify the map area to use and the trigger byte address:
Map area options
– From PROFINET: The trigger byte is stored in the I/O data map Data from PROFINET
area.
– General: The trigger byte is stored in the I/O data map General area.
– Unmapped: The transaction data is not used.
Address
– Enter an Address, the location in the specified Map area (From PROFINET or General)
where the trigger byte will be saved.
Value: 0 (default) to 1499
Anybus
®
Communicator
™
User Manual
SCM-1202-176 1.0 en-US