SUB_LTOD_LTOD¶

Returns the difference between two long times-of-day as a duration.

Note

This feature requires IEC 61131-3 Edition 3. Use --dialect iec61131-3-ed3 to enable it. See Enabling Dialects and Features for details.

Signature¶

     ┌───────────────┐
IN1 ─┤               │
     │ SUB_LTOD_LTOD ├─ OUT
IN2 ─┤               │
     └───────────────┘

FUNCTION SUB_LTOD_LTOD : LTIME
  VAR_INPUT
    IN1 : LTIME_OF_DAY;
    IN2 : LTIME_OF_DAY;
  END_VAR
END_FUNCTION

The return type is LTIME.

Inputs

Name	Type	Description
`IN1`	`LTIME_OF_DAY`	The minuend time-of-day.
`IN2`	`LTIME_OF_DAY`	The subtrahend time-of-day.

Outputs

Name	Type	Description
Return value	`LTIME`	IN1 minus IN2 as a duration.

Returns the difference IN1 minus IN2 as an LTIME duration. Both inputs and the result are in milliseconds.

The short form is SUB_TOD_TOD. An operand of the short type (TIME_OF_DAY where LTIME_OF_DAY is expected) is accepted and widened to 64 bits.

Try it

Source

result := SUB_LTOD_LTOD(LTOD#10:00:00, LTOD#08:30:00);   (* result = LTIME#1h30m *)