This function of the CAA_CanL2.library creates a handle for a send cycle. An event which was triggered a certain period of time (udiCstForewarnTime) before the sending time can be assigned. And then a function allocated via “CB_RegisterCallback” can be called. The class used is “CB_FIELDBUS” and the source is “CB_DRIVER”. The lowest byte of the additional callback parameter contains the number of the interface. This makes it possible to update the data to be sent on time via "CL2.CstCycleUpdate”. The priority and parameter "xEnableSyncWindow” settings are the same as in “CL2.Write”.
|
hDriver |
CAA.HANDLE |
handle of CAN interface |
|
eCstEvent* |
CB_EVENT |
event to be activated when receiving a message 0: no event |
|
usiPriority |
USINT |
sending priority of message with values from 1 (highest priority) to 9. Can be retrieved with GetProperty. usiPrioity = 0 forces immediate sending! |
|
xEnableSyncWindow* |
BOOL |
TRUE: sending only inside of current Sync window |
|
udiCstCycle |
UDINT |
time period for sending messages [µs] |
|
udiCstForewarnTime |
UDINT |
forewarn time before sending message [µs] |
|
peError |
POINTER TO CL2.ERROR |
pointer to error code (enumeration type) |
|
hCstCycle |
CAA.HANDLE |
handle of sending cycle |
