Timer [T]; Numbers Of Timers; Functions And Operation Examples - Mitsubishi Electric FX3G SERIES Programming Manual

FX /FX /FX Series Programmable Controllers
3G 3U 3UC
Programming Manual - Basic & Applied Instruction Edition
4.5

Timer [T]

Timers add and count clock pulses of 1 ms, 10 ms, 100 ms, etc. inside the PLC. When the counted value reaches a
specified set value, the output contact of the timer turns on.
A set value can be directly specified by a constant (K) in the program memory, or indirectly specified by the contents of
a data register (D).
4.5.1

Numbers of timers

The table below shows timer (T) numbers. (The numbers are assigned in decimal.)
1. FX /FX PLC
3U 3UC
For 100 ms pulses
0.1 to 3276.7 sec
T 0 to T199
200 points
-------------
Routine program type
T192 to T199
2. FX PLCs
3G
For 100 ms pulses
0.1 to 3276.7 sec
T 0 to T199
200 points
-------------
Routine program
type
T192 to T199
Timer numbers not used for timers can be used as data registers for storing numeric values.
*1. In FX /FX
3U
*2. In FX
3G
4.5.2

Functions and operation examples

1. General type
X000
T200
X000
Current
value
Y000
94
For 10 ms pulses
0.01 to 327.67 sec
T200 to T245
46 points
Retentive type for 1
For 10 ms pulses
0.01 to 327.67 sec
0.001 to 32.767 sec
T200 to T245
46 points
Interrupt execution
PLCs, retentive type timers are backed up by the battery.
3UC
PLCs, retentive type timers are backed up by the EEPROM memory.
T200
K123
Set value
(constant)
Y000
A data register
can be
specified also.
1.23 sec
Set value
Retentive type for 1 Retentive type for 100
*1
ms pulses ms pulses
0.001 to 32.767 sec 0.1 to 3276.7 sec
T246 to T249
T250 to T255
4 points for
Interrupt execution
Latched (battery
Latched (battery
backed) type
*1
backed) type
Retentive type for
ms pulses 100 ms pulses
0.1 to 3276.7 sec
T246 to T249
T250 to T255
*2
4 points for
6 points
Latched type
Latched type
When the drive input X000 of the timer coil T200 turns ON, the current
value counter for T200 adds and counts clock pulses of 10 ms. When
the counted value becomes equivalent to the set value K123, the
output contact of the timer turns on.
In other words, the output contact turns on 1.23 seconds after the coil
is driven.
When the drive input X000 turns OFF or when the power is turned off
the timer is reset and the output contact returns.
For 1 ms pulses
*1
0.001 to 32.767 sec
6 points
T256 to T511
256 points
*1
For 1 ms pulses
0.001 to 32.767 sec
T256 to T319
*2
64 points
4 Devices in Detail
4.5 Timer [T]
Potentiometer type
0 to 255
(numeric value)
2 built-in points
Stored in D8030 and
D8031