Inovance H3U Series - Page 277

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4
4 Instructions4.8.5 Timing
HOUR S D1 D2
Hour meter Applicable model:
H3U
S Preset time
Preset time, measured in hours. When the cumulative
time reaches the preset one, a designated output
becomes active.
16-bit instruction
(7 steps)
HOUR:
Continuous
execution
32-bit instruction
(13 steps)
DHOURP: Pulse
execution
D1
Cumulative
time
Start number of units that store the cumulative time
D2
Time
reached ag
Variable unit that outputs a time reached alert. When
the cumulative time reaches the preset value, this unit
is active.
◆
Operands
Operand
Bit Element Word Element
System·User System·User Bit Designation Indexed Address Constant
Real
Number
S X Y M T C S SM D R T C SD KnX KnY KnM KnS KnSM
V,Z
Modication K H E
D1 X Y M T C S SM D R T C SD KnX KnY KnM KnS KnSM
V,Z
Modication K H E
D2 X Y M T C S SM D R T C SD KnX KnY KnM KnS KnSM
V,Z
Modication K H E
Note: The elements in gray background are supported.
◆
Function
When driving conditions are met, the HOUR instruction records time cumulatively. When the cumulative
time reaches the preset value, a designated output becomes active.
S is the preset time, measured in hours. When the cumulative time reaches the preset value, a designated
output becomes active.
D1 is the start number of units that store the cumulative time.
D2 is the variable unit that outputs a time reached alert. When the cumulative time reaches the preset
value, this unit is active.
In 16-bit operation, the value in D1 ranges from K0 to K32,767, in the unit of hours. D1+1 stores the current
time value less than 1 hour. The value ranges from K0 to K3599, in the unit of seconds. D1 occupies two
units.
In 32-bit operation, the value stored in D1+1 and D1 ranges from K0 to K2,147,483,647, in the unit of
hours. D1+2 stores the current time value less than 1 hour. The value ranges from K0 to K3599, in the unit
of seconds. D1 occupies three units.
The time value in D1 cannot be negative. If D1 is specied as a register without support for retention upon
power failure, the value in D1 is cleared when the PLC switches from STOP to RUN or when a power
failure occurs. If you need to retain the current data in the case of a power failure, specify D1 as a register
with support for retention upon power failure.
Example:
M200
〔HOUR K2000 D300 Y10〕
D1
S
D2
When M200 = ON, the time during which M200 remains ON is recorded cumulatively and stored in D300.
If the time value is less than 1 hour, the equivalent value in the unit of seconds is recorded in D301. When
the cumulative time in D200 reaches 2000 hours, Y10 output is set to ON. After the cumulative time
counted from when the timing condition is met reaches the preset value in S, the cumulative time continues