5 special registers, Special registers – MITSUBISHI ELECTRIC 700 Series User Manual

Page 19

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14

Device Map

1.6.5

Special registers

The special registers are data registers with special applications and therefore data
should not be written to the special registers in the program.

Number

Name

Description

Page

S

p

eci

al

r

e

gi

st

er

s

D9008

Self-diagnostic
error

Stores the self-diagnosed error number in BIN. (Refer
to page 22
for the error codes.)

22

D9010

Operation error
step

Stores the step number in BIN, at which an instruction
execution error occurred. After that, data is updated
each time operation error occurs.

D9011

Operation error
step

Stores the step number in BIN, at which an instruction
error occurred. Since data is stored into D9011 when
M9011 turns from off to on, D9011 data is not updated
unless M9011 is cleared by the user program.

D9014

I/O control
method

3 (fixed): Both input and output refreshes

D9015

CPU operating
status

Stores the operating status of the PLC function.

D9016

Program number

Stores the number that indicates which sequence
program is currently in execution.
1 (fixed): Main program (RAM)

D9017

Minimum scan
time
(10ms units)

Stores the scan time at every END that is smaller than
D9017 data, i.e. stores the minimum scan time in BIN.

D9018

Scan time
(10ms units)

Stores and updates the scan time at every END in
BIN.

D9019

Maximum scan
time
(10ms units)

Stores the scan time at every END that is greater than
D9019 data, i.e. stores the maximum scan time in
BIN.

D9062 to
D9093

Remote registers

Special registers for communication with the master
station in CC-Link.

50

RUN
STOP

0
1

B15

B12B11

B8B7

B4B3

B0

RUN
STOP

0
1

RUN
STOP

0
1

Remote run/stop
using GX Developer

Remote run/stop using
sequence parameter setting

Shorting/
opening SQ-SD

Invalid

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