Fnc163 - Tsub / Rtc Data Subtraction - Mitsubishi Electric FX3G SERIES Programming Manual
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FX
/FX
/FX
Series Programmable Controllers
3G
3U
3UC
Programming Manual - Basic & Applied Instruction Edition
21.4
FNC163 – TSUB / RTC Data Subtraction
Outline
This instruction executes subtraction of two time data, and stores the subtraction result to word devices.
1. Instruction format
FNC 163
TSUB
2. Set data
Operand type
S
S
1
1
S
2
D
3. Applicable devices
Bit Devices
Oper-
and
System User
Type
X Y M T C S D .b KnX KnY KnM KnS
S
S
1
1
S
2
S
D
2
: This function is supported only in FX
Explanation of function and operation
1. 16-bit operation (TSUB)
The time data (hour, minute, and second) stored in
(hour, minute, and second) stored in
second) is stored in
Command
input
FNC163
TSUB
S
(hour)
1
S
+1 (minute)
1
S
+2 (second)
1
When the operation result is smaller than 0 hour, the borrow flag turns ON, and the value simply acquired by
subtraction added by 24 hours is stored as the operation result.
When the operation result becomes "0" (0:0:0), the zero flag turns ON.
570
Mnemonic
16-bit Instruction
P
7 steps TSUB
TSUBP
Specifies "hour" of the time data (hour, minute, and second) used in subtraction.
(Three devices are occupied.)
Specifies "hour" of the time data (hour, minute, and second) used in subtraction.
(Three devices are occupied.)
Stores the subtraction result (hour, minute, and second) of two time data.
(Three devices are occupied.)
Digit Specification
/FX
3U
S
1
D
,
D
+1, and
S
S
1
2
S
(hour)
2
−
S
+1 (minute)
2
S
+2 (second)
2
21 Real Time Clock Control – FNC160 to FNC169
Operation Condition
Continuous
Operation
Pulse (Single)
Operation
Description
Word Devices
Special
System User
Unit
T
C D R U \G
PLCs.
3UC
S
,
S
+1, and
2
2
,
+1, and
+2, and the subtraction result (hour, minute, and
S
S
1
1
D
+2.
(
,
+1,
S
S
1
1
D
→ (
D
,
D
D
(hour)
→
D
+1 (minute)
D
+2 (second)
21.4 FNC163 – TSUB / RTC Data Subtraction
Mnemonic
32-bit Instruction
−
−
Con-
Real
Index
stant
Number
V
Z Modify K
H
E
S
+2 is subtracted from the time data
2
+2)−(
,
+1,
S
S
S
1
2
2
+1,
D
+2)
The setting range of "hour" is from 0 to 23.
The setting range of "minute" is from 0 to 59.
The setting range of "second" is from 0 to 59.
Operation Condition
Data type
16-bit binary
16-bit binary
16-bit binary
Others
Charac-
Pointer
ter String
" "
P
+2)
S
2
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