Tab 'I/O Mapping'

Object: KNX

The I/O channels are generated for each communication object:

Table 385: General I/Os
Signal	Description
“Program LED Status”	This input is set by the ETS program. The signal can be used for identifying a special controller when several controllers are used (for example, by switching a LED). The status is also set when the “Program Button” is set to `‎TRUE‎`. Then the device is in programming mode. As soon as ETS5 has successfully set the physical address, this input switches to `‎FALSE‎`.
“Program Button”	The “Program Button” is needed for assigning the physical address from ETS5. If the output is set to `‎TRUE‎`, then the device is in programming mode and then ETS5 can assign the address specified there to the device.

Table 386: I/O channels of the communication object
Signal	Description
“Status byte”	Status byte as defined in the KNX stack. This allows you to determine in the application whether or not data has been received. The status can be reset by means of the `‎ResetStatusFlags‎` method.
“Trigger/Disable Cyclic, send on change” “Trigger Output”	Depending on the configuration in the ETS program, this output has the following function: If at least one of the options “send on difference”, “send on change”, or “Cyclic sending” is enabled, then the output is defined as deactivation. If it is set to TRUE, then cyclic sending or send on change is stopped. If none of the options “send on difference”, “send on change”, or “Cyclic sending” is enabled, then sending is triggered by a rising edge.
“Value”	Value for the input or outputs – depending on the corresponding communication object.