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5 BASIC USAGE
5 - 11
(2) Preset using an external control signal
Preset is performed by applying ON voltage to the preset input terminal for
external input.
Count enable command
OFF
{Y04 (Y0C)}
Counter input pulse
Preset value setting buffer memory
{Addresses 0
to 1
(20
to 21
)}
H
H
H
H
Preset command
(Preset input terminal)
OFF
External preset request
detection flag
OFF
{X04 (X0B)}
External preset request
detection reset command
OFF
{Y05 (Y0D)}
Present value storage buffer memory
{Addresses 2
to 3
(22
to 23
)}
H
H
H
H
Number
Any numeric value is written in 32-bit binary format into the preset value setting
1)
buffer memory (Addresses 0
At the start (OFF to ON) of the preset command (voltage applied to the preset
input terminal), the preset value in the preset value setting buffer memory is
2)
preset in the present value storage buffer memory. Preset can be executed
regardless of whether the count enable command {Y04(Y0C)} is ON or OFF.
POINT
While the external preset request detection flag {X04(X0B)} is ON (3), preset
cannot be executed even if voltage is applied to the preset terminal or the preset
command {Y01(Y09)} is turned ON. Preset can be performed by turning ON (4) the
external preset request detection reset command {Y05(Y0D)} and turning OFF the
external preset request detection flag.
ON
0
ON
ON
ON
0
to
1
2
to 1
H
H
1)
100
2)
3)
65
66
67
100
101
Description
(20
to 21
)) for the QD62(E/D).
H
H
MELSEC-Q
2)
4)
to
123 124 100 101
5 - 11
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