Lenze PLC Designer V2.x - Manual (Page 290)

PLC Designer V2.x| Lenze Application Samples
The L_SCB_CANBasic.lib library
L_SCB_ParRead_String - "String"-read parameter
290
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1.3 EN - 07/2012
17.9 L_SCB_ParRead_String - "String"-read parameter
This FB reads out a string parameter and provides the value read to the application via the
output sData.
Inputs
Outputs
Identifier/data type Information/possible settings
xExecute
BOOL
Trigger read request.
TRUE Start read request once.
FALSE Deactivate reading.
byNodeNumber
BYTE
Node number
xUseSecondSDO
BOOL
TRUE: Use second SDO channel
FALSE: Use first SDO channel (Lenze setting)
byMasterNumber
BYTE
Interface number (0...3)
wIndex
WORD
CANopen index (0x0 ... 0xFFFF)
bySubCode
BYTE
Subcode (0 ... 255)
Identifier/data type Information/possible settings
xDone
BOOL
TRUE: Read request completed
xBusy
BOOL
Status output "Read request sent"
• TRUE: The read request was sent to the operating system and the FB is waiting for
a response from the device addressed.
• FALSE: The read request was completed.
xError
BOOL
TRUE: Read request completed
xTimeOut
BOOL
Signalling of a time-out (time-out error)
TRUE: Time-out; read request could not be executed
FALSE: No time-out detected
xNoBlockParameter Not assigned
sData
STRING (255)
Parameter value read