11 TROUBLESHOOTING

MELSEC-Q

Special Register List (Continue)

ACPU

Special

Special

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Corresponding

Special

Register after

Register for

Name

Meaning

 

 

 

 

 

 

 

 

 

 

 

Details

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CPU

Conversion

Conversion

Modification

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Stores conditions

Stores the local or remote station number at which a

 

 

 

 

D9232

SD1232

 

 

 

 

for up to numbers

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1 to 8

forward or reverse loop error has occurred

 

 

 

 

 

 

 

 

 

 

 

 

 

Stores conditions

 

Device

 

 

 

 

 

 

 

 

 

 

 

Bit

 

 

 

 

 

 

 

 

 

 

D9233

SD1233

 

 

 

 

 

number

b15

b14

b13

b12

b11

b10

b9

b8

b7

b6

b5

b4

b3

b2

b1

b0

 

 

 

 

 

 

for up to numbers

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

SD1232

R

 

F

R

F

R

F

R

F

R

F

R

F

R

F

R

F

 

 

 

 

 

 

 

 

 

 

 

 

 

 

9 to 16

 

L/R8

L/R7

L/R6

L/R5

L/R4

L/R3

L/R2

L/R1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

R

F

R

F

R

F

R

F

R

F

R

F

R

F

R

F

 

 

 

 

 

 

 

 

Stores conditions

 

SD1233

 

 

 

 

 

 

 

 

L/R16

L/R15

L/R14

L/R13

L/R12

L/R11

L/R10

L/R9

 

 

D9234

SD1234

 

 

 

 

for up to numbers

 

SD1234

R

 

F

R

F

R

F

R

F

R

F

R

F

R

F

R

F

 

 

 

 

 

 

 

 

 

 

 

 

 

 

17 to 24

 

L/R24

L/R23

L/R22

L/R21

L/R20

L/R19

L/R18

L/R17

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

R

F

R

F

R

F

R

F

R

F

R

F

R

F

R

F

 

 

 

 

 

 

 

 

Stores conditions

 

SD1235

 

 

 

 

 

 

 

 

 

L/R32

L/R31

L/R30

L/R29

L/R28

L/R27

L/R26

L/R25

 

 

D9235

SD1235

 

 

 

Local station and

for up to numbers

 

SD1236

R

 

F

R

F

R

F

R

F

R

F

R

F

R

F

R

F

 

 

 

 

 

 

 

 

 

 

 

 

25 to 32

 

L/R40

L/R39

L/R38

L/R37

L/R36

L/R35

L/R34

L/R33

 

 

 

 

 

 

 

remote I/O station

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Stores conditions

 

SD1237

R

 

F

R

F

R

F

R

F

R

F

R

F

R

F

R

F

 

 

 

 

 

 

 

loop error

 

L/R48

L/R47

L/R46

L/R45

L/R44

L/R43

L/R42

L/R41

 

 

 

 

 

 

 

 

 

 

 

D9236

SD1236

 

 

 

 

for up to numbers

 

SD1238

R

 

F

R

F

R

F

R

F

R

F

R

F

R

F

R

F

 

 

 

 

 

 

 

 

 

 

 

 

 

 

33 to 40

 

L/R56

L/R55

L/R54

L/R53

L/R52

L/R51

L/R50

L/R49

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Stores conditions

 

SD1239

R

F

R

F

R

F

R

F

R

F

R

F

R

F

R

F

 

 

 

 

 

 

 

 

 

L/R64

L/R63

L/R62

L/R61

L/R60

L/R59

L/R58

L/R57

 

 

 

 

 

 

 

 

 

 

 

 

D9237

SD1237

 

 

 

 

for up to numbers

In the above table, "F" indicates a forward loop line and

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

41 to 48

"R" a reverse loop line .The bit corresponding to the

 

 

 

 

 

 

 

 

 

 

Stores conditions

station number at which the forward or reverse loop error

 

 

 

D9238

SD1238

 

 

 

 

for up to numbers

has occurred, becomes "1".

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

49 to 56

Example:

When the forward loop line of station 5 has an

 

 

 

 

 

 

 

Stores conditions

 

 

 

error, bit 8 of SD1232 become "1", and when

 

 

 

D9239

SD1239

 

 

 

 

for up to numbers

 

 

 

SD1232 is monitored, its value is "256 (100H)".

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

57 to 64

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Stores the number of times the following transmission

 

 

 

 

 

 

 

 

 

Number of times

Stores

errors have been detected:

 

 

 

 

 

 

 

 

 

 

 

 

D9240

SD1240

 

 

 

communications

cumulative total

CRC, OVER, AB. IF

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

errors detected

of receive errors

Count is made to a maximum of FFFFH. RESET to return

QnA

 

 

 

 

 

 

 

the count to 0.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Stores whether the slave station corresponds to

 

 

 

 

 

 

 

 

 

 

 

 

MELSECNET or MELSECNET II.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

• Bits corresponding to the MELSECNET II stations

 

 

 

 

 

 

 

 

 

 

Stores conditions

 

become "1."

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

D9241

SD1241

 

 

 

 

for up to numbers

• Bits corresponding to the MELSECNET stations or

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

33 to 48

 

unconnected become "0."

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Device

 

 

 

 

 

 

 

 

 

 

 

Bit

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

number

b15

b14

b13

b12

b11

b10

b9

b8

b7

b6

b5

b4

b3

b2

b1

b0

 

 

 

 

 

 

 

 

 

 

SD1202

L16

L15

L14

L13

L12

L11

L10

L9

L8

L7

L6

L5

L4

L3

L2

L1

 

 

 

 

 

 

 

Local station link

 

 

SD1203

L32

L31

L30

L29

L28

L27

L26

L25

L24

L23

L22

L21

L20

L19

L18

L17

 

 

 

 

 

 

 

type

 

 

SD1241

L48

L47

L46

L45

L44

L43

L42

L41

L40

L39

L38

L37

L36

L35

L34

L33

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

SD1242

L64

L63

L62

L61

L60

L59

L58

L57

L56

L55

L54

L53

L52

L51

L50

L49

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

• If a local station goes down during the operation, the

 

 

 

 

 

 

 

 

 

 

Stores conditions

 

contents before going down are retained.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Contents of SD1224 to SD1227 and SD1228 to SD1231

 

D9242

SD1242

 

 

 

 

for up to numbers

 

are ORed. If the corresponding bit is "0", the

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

49 to 64

 

corresponding bit of the special register above becomes

 

 

 

 

 

 

 

 

 

valid.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

• If the own (master) station goes down, the contents

 

 

 

 

 

 

 

 

 

 

 

 

before going down are also retained.

 

 

 

 

 

 

 

 

 

 

 

 

 

Station number

Stores station

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

D9243

SD1243

 

 

 

information for host

Allows a local station to confirm its own station number

 

 

 

 

 

 

number (0 to 64)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

station

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

D9244

SD1244

 

 

 

Number of link

Stores number of

Indicates the number of slave stations in one loop.

 

 

 

 

 

 

 

 

device stations

slave stations

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Number of times

Stores

Stores the number of times the following transmission

 

 

 

 

 

 

 

 

 

errors have been detected: CRC, OVER, AB. IF

 

 

 

 

 

D9245

SD1245

 

 

 

communications

cumulative total

 

 

 

 

 

 

 

 

Count is made to a maximum of FFFFH. RESET to return

 

 

 

 

 

 

 

 

 

 

errors detected

of receive errors

 

 

 

 

 

 

the count to 0.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

11 - 96

11 - 96