Mitsubishi Q00JCPU User Manual page 477

9
DEVICE EXPLANATION
(b) Measurement units
(5) High-speed timers
(a) Definition
[Ladder example]
[Time chart]
X0
T200 coil
T200 contact
(b) Measurement units
The default time measurement units setting for low speed timers is 100 ms.
The time measurement units setting can be designated in 1 ms units within a 1 ms
to 1000 ms range.
This setting is designated at the "PLC system" tab screen in the "(PLC)
Parameter" dialog box.
High-speed timers performs counting in 0.1 to 100ms units.
The timer is valid only while its coil is ON, and has a symbol "H".
The time measurement begins when the timer's coil switches ON, and the contact
switches ON when the time elapses. When the timer's coil switches OFF, the
current value becomes "0", and the contact switches OFF.
H
X0
T200
ON
OFF
ON
OFF
OFF
Diagram 9.22 Ladder example and timing chart of high-speed timer
The default time measurement units setting for high speed timers is 10 ms.
The time measurement units setting can be designated in 0.1ms units within a 0.1
ms to 100 ms range.
This setting is designated at the "PLC system" tab screen in the "(PLC)
Parameter" dialog box.
High-speed timer display
When X0 switches ON, the T200 coil switches ON, and
K50
the contact switches ON 0.5 second later. (The high-
speed timer measures time in 10 ms units.)
0.5s
ON
9.2 Internal User Devices
9.2.10 Timer (T)
9
10
11
9
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