Timer [T]; Numbers Of Timers - Mitsubishi Electric MELSEC FX3U 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 PLCs, retentive type timers are backed up by the EEPROM memory.
3G
Retentive type for 1
For 10 ms pulses
ms pulses
0.01 to 327.67 sec
0.001 to 32.767 sec
T246 to T249
4 points for
T200 to T245
Interrupt execution
46 points
Latched (battery
backed) type
Retentive type for
For 10 ms pulses 1 ms pulses
0.01 to 327.67 sec 0.001 to 32.767
sec
T246 to T249
T200 to T245
4 points
46 points
Interrupt execution
Latched type
PLCs, retentive type timers are backed up by the battery.
3UC
Retentive type for
*1
100 ms pulses
0.1 to 3276.7 sec
T250 to T255
6 points
Latched (battery
backed) type
*1
Retentive type for
100 ms pulses
0.1 to 3276.7 sec
T250 to T255
*2
for
*2
6 points
Latched type
4 Devices in Detail
4.5 Timer [T]
For 1 ms pulses
*1
0.001 to 32.767 sec
T256 to T511
256 points
*1
Potentiometer
For 1 ms pulses
type
0.001 to 32.767
0 to 255
sec
(numeric value)
2 built-in points
T256 to T319
64 points Stored in D8030
and D8031
1
2
3
4
5
6
7
8
9
10
97