FB_CrestronReadByte

VAR_INPUT

sTargetIpAddr  : STRING(15);
dwData         : DWORD;
iOffset        : INT;
bExecute       : BOOL;
tTimeout       : TIME := T#5s;

sTargetIpAddr: IP address of the Crestron controller.

dwData: Address pointer to a PLC variable of data type BYTE (8 bit), in which the read value is stored.

iOffset: Indicates the offset in the buffer Buffer_RX of the Crestron controller from which the data are to be read.

bExecute: A positive edge starts the block.

tTimeout: Specifies the interval for awaiting a response.

VAR_OUTPUT

bBusy       : BOOL;
bError      : BOOL;
udiErrorId  : UDINT;

bBusy: During the read process bBusy is set to True and remains True until the reading process is complete. During this time no further read commands can be activated via this block.

bError: A positive flank indicates that an error has occurred.

udiErrorId: Contains the error code that may occur during block execution. If no error has occurred, the value is 0.

Requirements