Devices In Detail; Device Number List - Mitsubishi FX3G Series Programming Manual

FX /FX /FX /FX
3G 3U 3GC 3UC
Programming Manual - Basic & Applied Instruction Edition
4.

Devices in Detail

This chapter explains how numeric values are handled in the PLC as well as the roles and functions of various built-in
devices including I/O relays, auxiliary relays, state relays, counters and data registers.
The following content provides a basis for handling the PLC.
4.1

Device Number List

Device numbers are assigned as shown below.
For input relay numbers and output relay numbers when I/O extension equipment and special extension equipment
are connected to the PLC main unit, refer to the Hardware Edition.
1) FX /FX PLCs
3U 3UC
Device name
I/O relay
Input relay
Output relay
Auxiliary relay
General type [variable]
Latched (battery backed)
type [variable]
Latched (battery backed)
type [fixed]
*2
Special type
State relay
Initial state (general type
[variable])
General type [variable]
Latched (battery backed)
type [variable]
Annunciator
(latched (battery backed)
type [variable])
Latched (battery backed)
type [fixed]
Timer (on-delay timer)
100 ms
100 ms [for subroutine or
interrupt routine]
10 ms
Retentive type for 1 ms
Retentive type for 100 ms
1 ms
Counter
General type up counter
(16 bits) [variable]
Latched (battery backed)
type up counter
(16 bits) [variable]
General type
bi-directional counter
(32 bits) [variable]
Latched (battery backed)
type
bi-directional counter
(32 bits) [variable]
Series
*1
248 points
X000 to X367
*1
248 points
Y000 to Y367
M0 to M499 500 points
M500 to M1023 524 points
M1024 to M7679 6656 points
M8000 to M8511 512 points
S0 to S9 10 points
S10 to S499 490 points
S500 to S899 400 points
S900 to S999 100 points
S1000 to S4095 3096 points
T0 to T191 192 points
T192 to T199 8 points
T200 to T245 46 points
T246 to T249 4 points
T250 to T255 6 points
T256 to T511 256 points
C0 to C99 100 points
C100 to C199 100 points
C200 to C219 20 points
C220 to C234 15 points
Description
Device numbers are octal.
The total number of inputs and outputs is 256.
The setting can be changed between the latched
(battery backed) type and the non-latched type
using parameters.
The setting can be changed between the latched
(battery backed) type and the non-latched type
using parameters.
0.1 to 3,276.7 sec
0.1 to 3,276.7 sec
0.01 to 327.67 sec
0.001 to 32.767 sec
0.1 to 3,276.7 sec
0.001 to 32.767 sec
Counts 0 to 32,767
The setting can be changed between the latched
(battery backed) type and the non-latched type
using parameters.
−2,147,483,648 to
+2,147,483,647 counts
The setting can be changed between the latched
(battery backed) type and the non-latched type
using parameters.
4 Devices in Detail
4.1 Device Number List
Reference
Section 4.2
Section 4.3
Chapter 37
Section 4.4
Section 4.5
Section 4.6
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