Which products are affected?
LenzeDrive.lib
LenzeDriveV0201.lib
LenzeDriveV0202.lib
What happens?
The
L_FCNT function block sets its
bEqual_b output to TRUE even if the comparison value at the
nCmpVal_a input does not match the counter content at the
nOut_a output. In this case the counter content of the function block can no longer be incremented or decremented via the inputs
bClkUp_b and
bClkDwn_b.
When does the problem occur?
The response described before occurs if
- the Hold (byFunction=2) function of the L_FCNT function block is activated
- and
- the value indicated by the counter (nOut_a output) is greater than or equal to the comparison value at the nCmpVal_a input of the function block.
Possible diagnostics?
None.
Short-term measures/recommendations?
When the
L_FCNT function block is used while the
Hold function is active, it must be observed that the counter value is always less than the comparison value since otherwise the function block stops counting.
Evaluation:
If the
Hold function is activated, the
L_FCNT function block does not count as described in the documentation. This function restriction will be detected during commissioning at the latest.
