Limiting Of Output Value; Handling The Cam Data - Baumuller b maXX BM3000 Operating Manual

4.6
Set Value Generators
The cam is waiting for the final command to start processing, if it is in the "active" state.
If the active relative mode is activated, the reference value is frozen during transmission
from "active" to "run", in order to use this value at the next processing.
"run" state
The cam is in the "run" state, if bit 0 = 1 and bit 1 = 1 in
ator processes the loaded cam in "run" state.

4.6.5.6 Limiting of output value

Because the cam is intended for the generation of the positioning set values for an axis,
the output value is available in the value range of an unsigned 32 bit value. If the output
value exceeds the maximum value of 0xFFFFFFFF, then the output overflows and the
output value starts at 0 again. The cam generator can write to a target parameter of an-
other data type, as well. However, in the range of 0x0 to 0xFFFFFFFF, only.
If the value, which is to be written on the parameter, is greater than the maximum value
or lower than the minimum value of the target parameter, then the output of the cam gen-
erator is limited. Bit 7 in the
of the cam is exited. Now, the cam generator is in the "active" state.
Behavior of signed integer parameters:
Behavior of float parameters and of unsigned, integer parameters:
Additionally, the bits of the output value are the same length as the parameter
(uint16  16 bits; uint8  8 bits) at unsigned and integer parameter. Thus, the cam
can write uint16 parameters and uint8 parameters cyclical endlessly. These parameters
can overflow.

4.6.5.7 Handling the cam data

The cam data is filed in the parameter set file. Therefore, the cams are accepted easily,
if operated in another device.
A single cam is always loaded into the RAM of a controller. The cam must be written into
the flash, if it shall be available after a restarting. This is executed, by saving the complete
parameter set in the flash. Therewith, the cam is saved in the flash, also. If the device is
booted, an available cam in the flash is loaded with the parameters and now is available
in the cam generator.
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– If the maximum value of the parameter is negative, the maximum value is written on
this parameter.
– If the output of the cam is greater than the positive maximum value of the parameter,
then this maximum value is written on the parameter.
– If the output of the cam generator is smaller than the positive minimum value of the
parameter, then this minimum value is written on the parameter.
– If the output value is greater than the maximum value of the parameter, then the out-
put is limited and this maximum value is written on the parameter.
– If the output value is lower than the minimum value of the parameter, then it is limited
and the minimum value is written on the output parameter.
Z159.3–
is set, if the output is limited. Then the processing
Z159.3–
State. The cam gener-
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