Specifications

Adding Channels and an SWI to the Configuration File
Connecting to I/O Devices 7-15
5) Insert another HST object and rename it output_HST.
6) Set the following properties for the output_HST object and click OK.
When this output channel contains an empty frame (because the target
read and released a frame), it uses SWI_andn to clear the second bit of
the mailbox.