Omron NJ501-1500

2-555
2 Instruction Descriptions
NJ-series Instructions Reference Manual (W502)
Time and Time of Day Instructions
2
SUB_DATE_DATE
SUB_DATE_DATE
The SUB_DATE_DATE instruction subtracts another date from another date.
The SUB_DATE_DATE instruction subtracts date In2 from date In1. The result of subtraction in Out is a
time.
The following example is for when In1 is D#1970-1-7 and In2 is D#1970-1-2.
Instruction Name FB/FUN Graphic expression ST expression
SUB_DATE_DATE Subtract Date FUN Out:=SUB_DATE_DATE(In1,
In2);
Variables
Name Meaning I/O Description Valid range Unit Default
In1 Date 1
Input
Date 1
Depends on data type.
Year, month,
day
D#1970-
1-1
In2 Date 2 Date 2
Out Resulting
time
Output Resulting time Depends on data type. ns
---
Boolean
Bit strings Integers
Real
numbers
Times, durations,
dates, and text strings
BOOL
BYTE
WORD
DWORD
LWORD
USINT
UINT
UDINT
ULINT
SINT
INT
DINT
LINT
REAL
LREAL
TIME
DATE
TOD
DT
STRING
In1 OK
In2 OK
Out OK
Function
(@)SUB_DATE_DATE
EN ENO
In1 Out
In2
abc:=SUB_DATE_DATE(D#1970-1-7, D#1970-1-2);
LD
ST
abc
D#1970-1-7
D#1970-1-2
SUB_DATE_DATE
EN ENO
In1
In2
−
D#1970-1-7
D#1970-1-2
T#5d0h0m0.000000000s
In1
In2
Out=abc