LinMot

Motion Control SW
L i n M o t ®
Header 0 050xh: Modify Curve Start Address in RAM UInt16 -
1. Par 2 Curve ID UInt16 1..100
2. Par 4 Curve Start Address Offset Uint16 -
This command allows locating the curve start address (points to the start of the curve info
header). A value of 0FFFh means no curve has been defined, can be used to clear a curve.
When using this command the whole memory management of the curve data has to be done
by the superior system! A curve can only be defined with a valid start address. If a start
address is defined, the curve (curve info header and curve data points) has to be completely
defined, otherwise this will lead to an unpredictable behavior!
4.3.58 Modify Curve Info Block 16 Bit Value in RAM (051xh)
Name Byte Description Type Unit
Offset
Header 0 051xh: Modify Curve Info Block 16 Bit Value in UInt16 -
RAM
1. Par 2 Curve ID UInt16 1..100
2. Par 4 Offset in Byte Uint16 0..
3. Par 6 Value Sint16 -
This command allows to modify a 16 bit value (or half of a 32 bit value) in RAM within the
curve info block of an existing curve profile with the given ID. The offset argument defines on
which position within the curve info block the modification takes place (byte offset). In order
to modify for instance the value of x-Length you first have to set the low word of the new
curve length with Offset 32 and then the high word with offset 34.
The fieldbus interfaces (CANOpen, DeviceNet, Profibus, LinRS, POWERLINK, EtherCAT)
offer a safer way to download and modify curve profiles (Curve Service). Writing with wrong
offsets, may overwrite and destroy data of other curves and may lead to unpredictable
behavior!
4.3.59 Modify Curve Info Block 32 Bit Value in RAM (052xh)
Name Byte Description Type Unit
Offset
Header 0 052xh: Modify Curve Info Block 32 Bit Value in UInt16 -
RAM
1. Par 2 Curve ID UInt16 1..100
2. Par 4 Offset in Byte Uint16 0..
3. Par 6 Value Sint32 -
This command allows to modify a 32 bit value in RAM within the curve data block of an
already existing curve profile with the given ID. The offset argument defines on which
position within the curve data block the modification takes place (byte offset). In order to
modify for instance the first position setpoint value (SInt32) you have to set the new position
with offset 0. The second setpoint has offset 4, and so on.
The fieldbus interfaces (CANOpen, DeviceNet, Profibus, LinRS, POWERLINK, EtherCAT)
offer a safer way to download and modify curve profiles (Curve Service). Writing with wrong
offsets, may overwrite and destroy data of other curves and may lead to unpredictable
behavior!
NTI AG / LinMot User Manual Motion Control SW/ 07.09.2011 Page 41/105