IDEC MICROSmart FC6A Series Ladder Programming Manual

27: F LOW C ALCULATION I NSTRUCTIONS
27-20 FC6A S ERIES MICROS MART L ADDER P ROGRAMMING M ANUAL FC9Y-B1726
Function Descriptions
■ Flow Rate Function
Starting the Flow Rate Calculation
This section describes the operation from turning on the input to starting the flow rate calculation.
Note: The flow rate formula is as follows.
T has the following values depending on the set flow rate unit.
(1) If the input is turned on, the flow volume work area and the flow rate (D1+0, D1+1) are initialized to "0".
(2) If the enable totalizer input (S2) is turned on, sampling of the flow counter (S1+0, S1+1) starts, and the amount that the
flow counter increased is added to the flow volume work area with each scan.
(3) When the enable totalizer input is on, the flow volume is calculated from the flow volume work area each second and stored
in the flow rate.
The flow rate calculation is executed at a cycle of 1 second regardless of whether the log execution input (S3) is turned on
or off.
(4) (2) and (3) are then repeated.
Flow rate =
Flow volume work area
×T
K factor
T (s)
T (min)
T (hour)
T (day)
= 1
= 60
= 60×60 = 360
= 60×60×24 = 8,640
Enable totalizer input (S2)
Input
ON
OFF
Flow counter
(
S1+0, S1+1
)
ON
OFF
Flow volume work area
(
D1+8, D1+9
)
Flow rate
(
D1+0, D1+1
)
(1)
(2) (3) (4)
1 s
Flow rate
update cycle
Flow rate
update cycle
Flow rate
update cycle

IDEC MICROSmart FC6A Series Specifications

General

Brand	IDEC
Model	MICROSmart FC6A Series
Category	Computer Hardware
Language	English