INVT VS070QS-1618MDM1

VS070QS-1618MDM1 Integrated Machine High-speed counter
202403 (V1.0) 31
Input point
Counter
X0
X1
X2
X3
X4
X5
X6
X7
Max.
frequenc
y (kHz)
A
B
C254
Phase
A
Phase B
Reset
-
-
-
Startu
p
-
50
C255
-
-
-
Phase
A
Phase
B
Reset
-
Startup
-
SPD frequency
measurement
command
Input
point
Input
point
Input
point
Input
point
Input
point
Input
point
Input
point
Input
point
-
Pulse capture function
Input
point
Input
point
Input
point
Input
point
Input
point
Input
point
Input
point
Input
point
-
External interrupt
number
0/10
1/11
2/12
3/13
4/14
5/15
6/16
7/17
-
In the modes listed in the preceding table, after the the counting method of the
high-speed counter is determined by external input, the high-speed counter
performs counting.The counting of the high-speed counter is triggered by interrupts,
which is unrelated to the PLC scanning cycle.
This kind of high-speed counters are of the 32-bit bi-directional counting type.
According to different counting switching methods, it can be divided into the
following four types.
Counting
method
Counting action
1PH
single-end
counting
input
Counters C236–C245 count down/up when SM236–SM245 are ON/OFF.
1PH
counting
up/down
input
Corresponding to the action of counting up or down input, the counters
C246–C250 are automatically incremented/decremented. You can know
the current counting direction of the corresponding counter through
SM246–SM250. The counter counts up when the SM element is OFF, or
counts down when it is ON.