Mitsubishi Electric MELSEC FX3U Programming Manual page 592

FX /FX /FX Series Programmable Controllers
3G 3U 3UC
Programming Manual - Basic & Applied Instruction Edition
Explanation of function and operation
1. 16-bit operation (TZCP)
The lower limit and upper limit comparison time (hour, minute, and second) are compared with the time data
(hour, minute, and second) stored in three devices
from turn ON or OFF according to the comparison result.
D
Command
input
FNC161
D
D
D
↑
Even if the command contact turns OFF from ON and TZCP instruction is not executed,
D +1 and
Cautions
1) Number of occupied devices
Three devices are occupied respectively by
Make sure that these devices are not used in other controls for the machine.
2) When utilizing the time (hour, minute, and second) of the real time clock built in a PLC
Read the values of special data registers by TRD (FNC166) instruction, and then specify those word
devices as the operands.
590
S S
1 2
TZCP
Turns ON in the case of "
+1
Turns ON in the case of "
+2
Turns ON in the case of "
D +2 hold the status before the command contact turned OFF.
21 Real Time Clock Control – FNC160 to FNC169
21.2 FNC161 – TZCP / RTC Data Zone Compare
, +1, and
S S
This instruction compares the
comparison time zone specified by two
S D
points with the time data.
S (hour)
1
>
S
+1(minute)
1
S
1 +2(second)
S (hour)
1
≤
S
+1(minute)
1
S
1 +2(second)
, ,
S S S
1 2 3
+2. Three devices starting
S
S (hour)
".
S
+1(minute)
S
+2(second)
S (hour) S
2
≤
S S
+1(minute)
2
S S
+2(second) 2
S (hour) S
2
>
S S
+1(minute)
2
S S
+2(second)
2
D
,
, and .
D
(hour)
".
+1(minute)
+2(second)
(hour)
".
+1(minute)
+2(second)