Eaton ELC-PB, Programming Manual

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3 . I n s t r u c t i o n S e t
M N 0 5 0 0 3 0 0 3 E F or m o r e i nf o r m a t i o n v i s i t : www. e a t o n. c o m
3-417
API Mnemonic Operands Function
169 D HOUR
S, D
1
, D
2
Hour Meter
Bit Devices Word devices Program Steps
Type
OP
X Y M S K H KnX KnY KnM KnS T C D E F
S * * * * * * * * * * *
D
1
*
D
2
* * *
HOUR: 7 steps
DHOUR: 13 steps
ELC ELCB ELCM
PB PC/PA/PH PV PB PH/PA
32 16 P 32 16 P 32 16 P 32 16 P 32 16 P
Operands:
S
: Hours set-point value
D
1
: Current time (occupies 2 continuous addresses)
D
2
: Output
address
Description:
1.
D
2
turns ON when the current accumulated time equals
S
(in hours), and the range is
K1~K32,767.
D
1
range is K0~K32,767.
D
1
+1 is the current time in seconds. Its range is
K0~K3,599.
2. This instruction is used to measure the number of hours a process is running. This can be
used for example, to measure the time a machine is running to plan for scheduled
maintenance.
3. After the output
D
2
is ON, the timer will keep on timing.
4. When the 16-bit timer counts to its max. value (32,767 hours and 3,599 seconds), it will stop.
When the 32-bit timer counts to its max. value (2,147,483,647 hours and 3,599 seconds), it will
stop.
5. This Instruction can be used four times in the program.
Program Example :
For 16-bit instruction: When X0=ON, Y20 = ON, timing starts. When the time reaches 100 hours, Y0
= ON and D0 will record the current time (units are hours for D0 and, D1 will contain the number of
seconds that have elapsed (range is 0~3599 seconds).
HOUR
Y20
K100 Y0 D0
Y20
X0