Mitsubishi MELSEC iQ-F FX5 series, Programming Manual, Page: 834 / 888

832
23 TIME DATA FUNCTIONS
23.2 Subtraction
23.2
Subtraction
SUB_TIME(_E)
These functions output the difference of input values (TIME data) ((s1) - (s2)).
Setting data
■
Descriptions, types, and data types
Processing details
■
Operation processing
• These functions subtract the TIME type data input to (s1) and (s2) ((s1) - (s2)), and output the operation result from (d) as
TIME type data.
Ex.
When a value input to (s1) and (s2) is T#1d2h33m44s55ms (1 day 2 hours 33 minutes 44 seconds 55 milliseconds) and
T#2ms (2 milliseconds)
• A value input to (s1) and (s2) is the TIME type data value.
• Even if underflow or overflow occurs in the operation result, it is not regarded as an operation error. The data is output from
(d) as follows: "SUB_TIME_E" outputs "TRUE" from the output variable ENO.
Ex.
Overflow
The most significant bit becomes 1, and a negative time is output.
Ex.
Underflow
The most significant bit becomes 0, and a positive time is output.
Ladder diagram Structured text
[Without EN/ENO] [With EN/ENO] [Without EN/ENO]
d:=SUB_TIME(s1,s2);
[With EN/ENO]
d:=SUB_TIME_E(EN,ENO,s1,s2);
Argument Description Type Data type
EN Execution condition (TRUE: Execution, FALSE: Stop) Input variable BOOL
s1, s2 Input Input variable TIME
ENO Output status (TRUE: Normal, FALSE: Abnormal) Output variable BOOL
d Output Output variable TIME
s1 d
s2
EN ENO
d s1
s2
TIME
T#1d2h33m44s55ms
TIME
T#1d2h33m44s53ms
(d)
TIME
T#2ms
(s2) (s1)
-
(7FFFFFFFH)
T#24d20h31m23s647ms
(80000001H)
T#-24d20h31m23s647ms
(FFFFFFFEH)
T#-2ms -
(80000000H)
T#-24d20h31m23s648ms
(7FFFFFFEH)
T#24d20h31m23s646ms
(00000002H)
T#2ms -