Difference between revisions of "CANopen:CAN SDO READ REAL"
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Latest revision as of 15:13, 26 August 2014
Upload single precision floating point value from the device .
To read data from the slave we have to specify a SDO index and a sub-index.
The first sub-index is 0. If only one sub-index exists, we still have to specify 0 (we cannot omit this field).
The read value is returned from the function and can be set to a variable.
Input
Slave address, SDO index, SDO sub-index.
Output
None
Return Value
Value that is read from the slave.
Declaration
public function CAN_SDO_READ_REAL(byval slaveaddres as long, byval index as long, byval subindex as long) as double
Syntax
retVal = CAN_SDO_READ_REAL(<Slave address>, <SDO index>, <SDO sub-index>)
Exceptions
Examples
retVal = CAN_SDO_READ_REAL(2, 0x2020,0)