FB_sACN_Ex

This function block is derived from FB_sACN and it implements the sACN-2016.

Because the Send, Receive, and SendSynchronizationFrame methods are asynchronous and they need more than one cycle to finish working, only one method could be invoked at the same time. Therefore, always check the output parameter bBusy when calling these methods.

Syntax

FUNCTION_BLOCK FB_sACN_Ex EXTENDS FB_sACN
VAR_OUTPUT
    bBusy                              : BOOL;
    bError                             : BOOL;
    bCommunicated                      : BOOL;
    ipResultMessage                    : I_TcMessage;
END_VAR

VAR_OUTPUT

bBusy: Is set if a valid sACN frame is being sent/received.

bError: Is set if an error occurs. You can find error details included Error ID in logged event.

bCommunicated: Is set after the first streaming ACN frame is successfully sent or received. More information can be found at section Status indicator.

ipResultMessage: Enables error handling with the Tc3_EventLogger.

METHODS

FB_init: Initialization method

Send: Sending sACN frames (sACN-2016).

Receive: Receiving sACN frames.

SendSynchronizationFrame: Send sACN synchronization frame.

Further Information