Function Description
Use the SYST_READ_TASK_BIT function
to read and return the value of one of the following specified system
task bits: %S17, %S18, or %S21.
EN and ENO can be configured as additional
parameters.
Representation in FBD
Representation
Parameter Description
The SYST_READ_TASK_BIT function consists
of the following parameters:
Input parameter:
NUM
Output parameter:
OUTP
Input Parameters
Parameter |
Data Type |
Meaning |
|---|---|---|
|
|
Number of the system bit for the specified task: %S17, %S18, or %S21. |
Output Parameters
Parameter |
Data Type |
Meaning |
|---|---|---|
|
|
Value of the system bit. |
|
|
If mapped, displays false (0) if
an invalid |