11 TROUBLESHOOTING

MELSEC-Q

Special Register List (Continued)

Number

Name

Meaning

Explanation

Set by

Corresponding

Corresponding

(When set)

ACPU

CPU

 

 

 

 

D9

 

 

 

 

 

 

1When Xn0 of the installed CC-Link goes ON, the bit corresponding to the station switches ON.

2When either Xn1 or XnF of the installed CC-Link switch OFF, the bit corresponding to the station switches ON.

3Switches ON when the CPU module cannot communicate with

 

 

 

the installed CC-Link.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Information

 

 

Information

 

 

Information

 

 

 

 

 

 

 

 

of

3

 

 

 

 

 

 

of 2

 

 

 

 

of

1

 

 

 

 

 

 

 

 

 

 

 

QCPU

 

 

B15

B12 B11

 

 

 

B8 B7

B4 B3

 

 

 

 

 

 

B0

S (Error)

New

 

 

 

 

 

 

 

 

 

 

 

Remote

 

 

 

Vacant

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1st module

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Error detection

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2nd module

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

SD280

CC-Link error

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

3rd module

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

status

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

4th module

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

The above module numbers n are in order of the head I/O Nos.

 

 

 

 

 

(However, the modules without parameter setting are not counted in.)

 

 

 

1When Xn0 of the installed CC-Link goes ON, the bit corresponding to the station switches ON.

2When either Xn1 or XnF of the installed CC-Link switch OFF, the bit corresponding to the station switches ON.

3Switches ON when the CPU module cannot communicate with

 

 

 

the installed CC-Link.

 

 

 

 

 

S (Error)

New

QnA

 

 

 

 

B15

to

B9 B8

to

B0

 

 

 

 

 

 

8th

 

1st

8th

 

1st

 

 

 

 

 

 

module...

module

module

 

... module

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Information of 2

 

 

Information of

1

 

 

 

 

 

 

Number of

 

 

 

 

 

 

 

 

 

 

 

SD290

 

points

• Stores the number of points currently set for X devices

 

 

 

 

 

 

 

allocated for X

 

 

 

 

 

 

 

 

 

 

 

 

 

Number of

 

 

 

 

 

 

 

 

 

 

 

SD291

 

points

• Stores the number of points currently set for Y devices

 

 

 

 

+Rem

 

 

allocated for Y

 

 

 

 

 

 

 

 

 

 

 

 

 

Number of

 

 

 

 

 

 

 

 

 

 

 

SD292

 

points

• Stores the number of points currently set for M devices

 

 

 

 

allocated for M

 

 

 

 

 

 

 

 

 

 

 

 

 

Number of

 

 

 

 

 

 

 

 

 

 

 

SD293

 

points

• Stores the number of points currently set for L devices

 

 

 

 

 

 

 

allocated for L

 

 

 

 

 

 

 

 

 

 

 

 

 

Number of

 

 

 

 

 

 

 

 

 

 

 

SD294

 

points

• Stores the number of points currently set for B devices

 

 

 

 

+Rem

 

 

allocated for B

 

 

 

 

 

 

 

 

 

 

 

 

 

Number of

 

 

 

 

 

 

 

 

 

 

 

SD295

Device

points

• Stores the number of points currently set for F devices

 

 

 

 

 

 

allocated for F

 

 

 

 

 

 

 

 

 

 

 

 

allocation

 

 

 

 

 

 

 

 

 

 

 

 

Number of

 

 

 

 

 

 

 

 

 

 

 

 

(Same as

 

 

 

 

 

 

 

 

S (Initial)

New

 

 

points

 

 

 

 

 

 

 

 

 

SD296

parameter

• Stores the number of points currently set for SB devices

 

+Rem

allocated for

 

 

contents)

 

 

 

 

 

 

 

 

 

 

 

 

SB

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Number of

SD297points • Stores the number of points currently set for V devices allocated for V

Number of

SD298points • Stores the number of points currently set for S devices allocated for S

Number of

SD299points • Stores the number of points currently set for T device allocated for T

Number of

SD300points • Stores the number of points currently set for ST devices allocated for

ST

Number of

SD301points • Stores the number of points currently set for C devices allocated for C

11 - 75

11 - 75