ioInputLatchSet (Function)

This function is used to configure whether inputs (both Analog and Digital) of devices in I/O Extension, will be latched (keeping the last value) or reset (set to zero) when communication fails.

The default behavior  is to latch the inputs.

Input:

reset : BOOL

Returns:

None.

Declaration:

FUNCTION ioInputLatchSet;
VAR_INPUT
  reset : BOOL;
END_VAR;

Example:

INCLUDE rtcu.inc
 
PROGRAM ModbusExample;
 

  ...
  // Latch device inputs
  ioInputLatchSet(reset := FALSE);
  ...
 
BEGIN
END;
END_PROGRAM;