Device List - Mitsubishi Electric MELCEC Q Series User Manual

4. CPU MODULE
4.1.5

Device list

Device means a general name for such as a contact, coil and timer used on the program
operations in a programmable controller.
The following shows usage ranges and device names of the programmable controller.
For * in the devices below, they can be used by setting the parameters on each peripheral
device. Also, they can be changed the usage ranges assignment.
Set the parameters depending on the usage system and contents of the programs.
(For the detailed setting for parameters, refer to Section 4.2.1 "List of parameter setting
range".)
Device
X Input
Y Output
X Input
Y Output
Special relay
M
*Internal relay
L *Latch relay
S *Step relay
R Link relay
F Annunciator
*100ms timer
*10ms timer
*100ms retentive
T
timer
1ms timer
*Counter
C
*Interrupt counter
Range of Usage (points)
QCPU-A
X/Y0 to X/YFFF
(4096 points)
X/Y0 to X/Y1FFF(8192 points)
M9000 to M9255 (256 points)
M/L/S0 to M/L/S8191 (8192 points)
8192 points as a total of M, L, S
B0 to B1FFF (8192 points)
F0 to F2047 (2048 points)
T0 to T2047 (2048 points)
(Register for storing setting value(s) is required
for T256 or later.)
C0 to C1023 (1024 points)
Interrupt counter: fixed C224 to C255
Register for storing setting value(s) is
required for C256 or later.
Device list
Used for the supply programmable controller commands and data
from the external devices such as push buttons, select switches,
limit switches and digital switches.
Used to the output control results of the program to the external
devices such as solenoids, magnetic switches, signal lights and
digital display device.
• Possible to use in a program from the I/O points usage range per
each programmable controller (described above) up to 8192
points. (External outputs are not allowed.)
• Assigned for auto I/O refresh of MELSECNET/MINI-S3, remote I/
O of MELSECNET/10, remote I/O of MELSECNET(B), or CC-
Link.
An auxiliary relay which is used in a programmable controller set in
advance for a special application.
An auxiliary relay in a programmable controller which cannot output
directly to external devices.
An auxiliary relay in a programmable controller which cannot output
directly to the external devices. Has the power failure
compensation function.
Used in the same manner as the internal relay (M).
Used as a relays to indicate the stage number of process stepping
program, etc.
An internal relay for data link and it cannot be output to external
devices. The range not set by the link parameters can be used as a
substitute for a data register.
Used for error detection. Error detection programs are created in
advance, and if it becomes on during RUN, the number is stored in
a special register D.
• Up-timing-timer: there are four kinds: 100ms timer, 10ms timer,
100ms retentive timer and 1ms timer.
• 1ms timer uses the second half of the retentive timer with
ZHTIME instruction.
Up-timing
There are two kinds: an up-timing counter used in programmable
controller programs, an interrupt counter used in counting the
number of interrupts.
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Description of Device