boardSysSwitchGet (Function)

Query the state of a system switch.

A system switch is a software controlled switch, which is an alternative to hardware a jumper. The state of the switch is persistent.

The state of the system switch can be changed with the boardSysSwitchSet function.

Note: This function is supported on NX-200 and NX-400.

Input:

id : DINT;

The id of the system switch to query.

Output:

state : SINT;

The state of the system switch.

Returns: BOOL

Declaration:

FUNCTION boardSysSwitchGet : INT;
VAR_INPUT
   id    : DINT;
   state : ACCESS SINT;
END_VAR;

Example:

INCLUDE rtcu.inc
PROGRAM example;
VAR
   state : SINT;
END_VAR;
// Check CAN write support
boardSysSwitchGet(id:=_SSW_CAN_1_WR, state:=state);
IF state = 1 THEN
   DebugMsg(message := "CAN write is supported");
ELSE
   DebugMsg(message := "CAN write is not supported");
END_IF;
BEGIN
   . . .
END;
END_PROGRAM;