ItpIsFastMFunc
from library version 4.0
 | ItpIsFastMFunc is a function that determines whether the fast M-function is set for the supplied M-function number. |
Interface
FUNCTION ItpIsFastMFunc
VAR_IN
nFastMFuncNo : INT;
END_VAR
VAR_IN_OUT
sNciToPlc : NciChannelToPlc;
END_VAR
Input parameters
Input | Data type | Description |
|---|---|---|
nFastMFuncNo | INT | Number of the M-function that is to be checked. |
Input & output | Data type | Description |
|---|---|---|
sNciToPlc | NciChannelToPlc | The structure of the cyclic channel interface from the NCI to the PLC |
Return value
The function returns TRUE if the fast bit of the M-function is set.
| ItpIsFastMFunc evaluates the variable 'nFastMFuncMask' from the cyclic interface. |
Sample
(*this enum is defined by the user *)
TYPE FastMFuncs:
(
M10_CoolingFluidOn := 10, (*fast M-Funktion M10*)
M11_CoolingFluidOff := 11,
M12_FanOn := 12,
M13_FanOff := 13
);
END_TYPE
VAR
sNciToPlc: NciChannelToPlc
enFastMFuncs: FastMFuncs;
bTurnFanOn: BOOL;
END_VAR
bTurnFanOn := ItpIsFastMFunc( M12_FanOn,sNciToPlc );
Requirements
|
Development Environment |
Target System |
PLC libraries to include |
|---|---|---|
|
TwinCAT v2.7.0 |
PC (i386) |
TcNciItp.lib |
|
TwinCAT v2.8.0 |
PC (i386) |
TcNci.lib |